diff options
Diffstat (limited to 'xlators/features/quota/src/quota.c')
| -rw-r--r-- | xlators/features/quota/src/quota.c | 4834 |
1 files changed, 4025 insertions, 809 deletions
diff --git a/xlators/features/quota/src/quota.c b/xlators/features/quota/src/quota.c index 6d1d195b8..4beaae341 100644 --- a/xlators/features/quota/src/quota.c +++ b/xlators/features/quota/src/quota.c @@ -1,1031 +1,4074 @@ /* - Copyright (c) 2008-2009 Gluster, Inc. <http://www.gluster.com> - This file is part of GlusterFS. - - GlusterFS is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published - by the Free Software Foundation; either version 3 of the License, - or (at your option) any later version. - - GlusterFS is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see - <http://www.gnu.org/licenses/>. + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> + This file is part of GlusterFS. + + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. */ +#include <fnmatch.h> -#ifndef _CONFIG_H -#define _CONFIG_H -#include "config.h" -#endif +#include "quota.h" +#include "common-utils.h" +#include "defaults.h" +#include "statedump.h" -#include <sys/time.h> +int32_t +quota_check_limit (call_frame_t *frame, inode_t *inode, xlator_t *this, + char *name, uuid_t par); -#include "xlator.h" -#include "defaults.h" -#include "common-utils.h" -#include "quota-mem-types.h" - -#ifndef MAX_IOVEC -#define MAX_IOVEC 16 -#endif - -struct quota_local { - struct iatt stbuf; - inode_t *inode; - char *path; - fd_t *fd; - off_t offset; - int32_t count; - struct iovec vector[MAX_IOVEC]; - struct iobref *iobref; - loc_t loc; -}; +int +quota_fill_inodectx (xlator_t *this, inode_t *inode, dict_t *dict, + loc_t *loc, struct iatt *buf, int32_t *op_errno); + +struct volume_options options[]; +static int32_t +__quota_init_inode_ctx (inode_t *inode, xlator_t *this, + quota_inode_ctx_t **context) +{ + int32_t ret = -1; + quota_inode_ctx_t *ctx = NULL; -struct quota_priv { - char only_first_time; /* Used to make sure a call is done only one time */ - gf_lock_t lock; /* Used while updating variables */ + if (inode == NULL) { + goto out; + } - uint64_t disk_usage_limit; /* Used for Disk usage quota */ - uint64_t current_disk_usage; /* Keep the current usage value */ + QUOTA_ALLOC_OR_GOTO (ctx, quota_inode_ctx_t, out); - uint32_t min_free_disk_limit; /* user specified limit, in %*/ - uint32_t current_free_disk; /* current free disk space available, in % */ - uint32_t refresh_interval; /* interval in seconds */ - uint32_t min_disk_last_updated_time; /* used for interval calculation */ + LOCK_INIT(&ctx->lock); - loc_t root_loc; /* Store '/' loc_t to make xattr calls */ -}; + if (context != NULL) { + *context = ctx; + } + + INIT_LIST_HEAD (&ctx->parents); + + ret = __inode_ctx_put (inode, this, (uint64_t )(long)ctx); + if (ret == -1) { + gf_log (this->name, GF_LOG_WARNING, + "cannot set quota context in inode (gfid:%s)", + uuid_utoa (inode->gfid)); + } +out: + return ret; +} +static int32_t +quota_inode_ctx_get (inode_t *inode, xlator_t *this, + quota_inode_ctx_t **ctx, char create_if_absent) +{ + int32_t ret = 0; + uint64_t ctx_int; + + LOCK (&inode->lock); + { + ret = __inode_ctx_get (inode, this, &ctx_int); + + if ((ret == 0) && (ctx != NULL)) { + *ctx = (quota_inode_ctx_t *) (unsigned long)ctx_int; + } else if (create_if_absent) { + ret = __quota_init_inode_ctx (inode, this, ctx); + } + } + UNLOCK (&inode->lock); + + return ret; +} + int -quota_statvfs_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, struct statvfs *stbuf) -{ - struct quota_priv *priv = this->private; - - if (op_ret >= 0) { - priv->current_free_disk = - (stbuf->f_bavail * 100) / stbuf->f_blocks; - } +quota_loc_fill (loc_t *loc, inode_t *inode, inode_t *parent, char *path) +{ + int ret = -1; + + if (!loc || (inode == NULL)) + return ret; + + if (inode) { + loc->inode = inode_ref (inode); + uuid_copy (loc->gfid, inode->gfid); + } + + if (parent) { + loc->parent = inode_ref (parent); + } + + if (path != NULL) { + loc->path = gf_strdup (path); - STACK_DESTROY (frame->root); - return 0; + loc->name = strrchr (loc->path, '/'); + if (loc->name) { + loc->name++; + } + } + + ret = 0; + + if (ret < 0) { + loc_wipe (loc); + } + + return ret; } -void -gf_quota_usage_subtract (xlator_t *this, size_t size) +int +quota_inode_loc_fill (inode_t *inode, loc_t *loc) { - struct quota_priv *priv = NULL; + char *resolvedpath = NULL; + inode_t *parent = NULL; + int ret = -1; + xlator_t *this = NULL; - priv = this->private; + if ((!inode) || (!loc)) { + return ret; + } - LOCK (&priv->lock); - { - if (priv->current_disk_usage < size) - priv->current_disk_usage = 0; - else - priv->current_disk_usage -= size; - } - UNLOCK (&priv->lock); + this = THIS; + + if ((inode) && __is_root_gfid (inode->gfid)) { + loc->parent = NULL; + goto ignore_parent; + } + + parent = inode_parent (inode, 0, NULL); + if (!parent) { + gf_log (this->name, GF_LOG_DEBUG, + "cannot find parent for inode (gfid:%s)", + uuid_utoa (inode->gfid)); + } + +ignore_parent: + ret = inode_path (inode, NULL, &resolvedpath); + if (ret < 0) { + gf_log (this->name, GF_LOG_DEBUG, + "cannot construct path for inode (gfid:%s)", + uuid_utoa (inode->gfid)); + } + + ret = quota_loc_fill (loc, inode, parent, resolvedpath); + if (ret < 0) { + gf_log (this->name, GF_LOG_WARNING, "cannot fill loc"); + goto err; + } + +err: + if (parent) { + inode_unref (parent); + } + + GF_FREE (resolvedpath); + + return ret; +} + + +int32_t +quota_local_cleanup (xlator_t *this, quota_local_t *local) +{ + if (local == NULL) { + goto out; + } + + loc_wipe (&local->loc); + loc_wipe (&local->newloc); + loc_wipe (&local->oldloc); + loc_wipe (&local->validate_loc); + + inode_unref (local->inode); + LOCK_DESTROY (&local->lock); + + mem_put (local); +out: + return 0; +} + + +static inline quota_local_t * +quota_local_new () +{ + quota_local_t *local = NULL; + local = mem_get0 (THIS->local_pool); + if (local == NULL) + goto out; + + LOCK_INIT (&local->lock); + local->space_available = -1; + +out: + return local; +} + + +quota_dentry_t * +__quota_dentry_new (quota_inode_ctx_t *ctx, char *name, uuid_t par) +{ + quota_dentry_t *dentry = NULL; + GF_UNUSED int32_t ret = 0; + + QUOTA_ALLOC_OR_GOTO (dentry, quota_dentry_t, err); + + INIT_LIST_HEAD (&dentry->next); + + dentry->name = gf_strdup (name); + if (dentry->name == NULL) { + GF_FREE (dentry); + dentry = NULL; + goto err; + } + + uuid_copy (dentry->par, par); + + if (ctx != NULL) + list_add_tail (&dentry->next, &ctx->parents); + +err: + return dentry; } void -gf_quota_usage_add (xlator_t *this, size_t size) +__quota_dentry_free (quota_dentry_t *dentry) { - struct quota_priv *priv = this->private; + if (dentry == NULL) { + goto out; + } - LOCK (&priv->lock); - { - priv->current_disk_usage += size; - } - UNLOCK (&priv->lock); + list_del_init (&dentry->next); + + GF_FREE (dentry->name); + GF_FREE (dentry); +out: + return; } +inline void +quota_link_count_decrement (quota_local_t *local) +{ + call_stub_t *stub = NULL; + int link_count = -1; + + if (local == NULL) + goto out; + + LOCK (&local->lock); + { + link_count = --local->link_count; + if (link_count == 0) { + stub = local->stub; + local->stub = NULL; + } + } + UNLOCK (&local->lock); -void -gf_quota_update_current_free_disk (xlator_t *this) + if (stub != NULL) { + call_resume (stub); + } +out: + return; +} + +inline void +quota_handle_validate_error (quota_local_t *local, int32_t op_ret, + int32_t op_errno) { - call_frame_t *frame = NULL; - call_pool_t *pool = NULL; + if (local == NULL) + goto out; + + LOCK (&local->lock); + { + if (op_ret < 0) { + local->op_ret = op_ret; + local->op_errno = op_errno; + } + } + UNLOCK (&local->lock); + + /* we abort checking limits on this path to root */ + quota_link_count_decrement (local); +out: + return; +} + +int32_t +quota_validate_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, inode_t *inode, + struct iatt *buf, dict_t *xdata, struct iatt *postparent) +{ + quota_local_t *local = NULL; + int32_t ret = 0; + quota_inode_ctx_t *ctx = NULL; + int64_t *size = 0; + uint64_t value = 0; + + local = frame->local; + + if (op_ret < 0) { + goto unwind; + } - struct quota_priv *priv = NULL; + GF_ASSERT (local); + GF_ASSERT (frame); + GF_VALIDATE_OR_GOTO_WITH_ERROR ("quota", this, unwind, op_errno, + EINVAL); + GF_VALIDATE_OR_GOTO_WITH_ERROR (this->name, xdata, unwind, op_errno, + EINVAL); + + ret = inode_ctx_get (local->validate_loc.inode, this, &value); + + ctx = (quota_inode_ctx_t *)(unsigned long)value; + if ((ret == -1) || (ctx == NULL)) { + gf_log (this->name, GF_LOG_WARNING, + "quota context is not present in inode (gfid:%s)", + uuid_utoa (local->validate_loc.inode->gfid)); + op_errno = EINVAL; + goto unwind; + } - pool = this->ctx->pool; - frame = create_frame (this, pool); - - priv = this->private; + ret = dict_get_bin (xdata, QUOTA_SIZE_KEY, (void **) &size); + if (ret < 0) { + gf_log (this->name, GF_LOG_WARNING, + "size key not present in dict"); + op_errno = EINVAL; + goto unwind; + } - STACK_WIND (frame, quota_statvfs_cbk, - this->children->xlator, - this->children->xlator->fops->statfs, &(priv->root_loc)); + local->just_validated = 1; /* so that we don't go into infinite + * loop of validation and checking + * limit when timeout is zero. + */ + LOCK (&ctx->lock); + { + ctx->size = ntoh64 (*size); + gettimeofday (&ctx->tv, NULL); + } + UNLOCK (&ctx->lock); - return ; + quota_check_limit (frame, local->validate_loc.inode, this, NULL, NULL); + return 0; + +unwind: + quota_handle_validate_error (local, op_ret, op_errno); + return 0; } -int -gf_quota_check_free_disk (xlator_t *this) -{ - struct quota_priv * priv = NULL; - struct timeval tv = {0, 0}; - - priv = this->private; - if (priv->min_free_disk_limit) { - gettimeofday (&tv, NULL); - if (tv.tv_sec > (priv->refresh_interval + - priv->min_disk_last_updated_time)) { - priv->min_disk_last_updated_time = tv.tv_sec; - gf_quota_update_current_free_disk (this); - } - if (priv->current_free_disk <= priv->min_free_disk_limit) - return -1; - } +static inline uint64_t +quota_time_elapsed (struct timeval *now, struct timeval *then) +{ + return (now->tv_sec - then->tv_sec); +} - return 0; + +int32_t +quota_timeout (struct timeval *tv, int32_t timeout) +{ + struct timeval now = {0,}; + int32_t timed_out = 0; + + gettimeofday (&now, NULL); + + if (quota_time_elapsed (&now, tv) >= timeout) { + timed_out = 1; + } + + return timed_out; } +inline void +quota_add_parent (quota_dentry_t *dentry, struct list_head *list) +{ + quota_dentry_t *entry = NULL; + gf_boolean_t found = _gf_false; -int -quota_truncate_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, struct iatt *prebuf, - struct iatt *postbuf) + if ((dentry == NULL) || (list == NULL)) { + goto out; + } + + list_for_each_entry (entry, list, next) { + if (uuid_compare (dentry->par, entry->par) == 0) { + found = _gf_true; + goto out; + } + } + + list_add_tail (&dentry->next, list); + +out: + return; +} + +int32_t +quota_build_ancestry_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, + gf_dirent_t *entries, dict_t *xdata) { - struct quota_priv *priv = this->private; - struct quota_local *local = NULL; + inode_t *parent = NULL, *tmp_parent = NULL; + gf_dirent_t *entry = NULL; + loc_t loc = {0, }; + quota_dentry_t *dentry = NULL, *tmp = NULL; + quota_inode_ctx_t *ctx = NULL; + struct list_head parents = {0, }; + quota_local_t *local = NULL; + + INIT_LIST_HEAD (&parents); + + local = frame->local; + frame->local = NULL; + + if (op_ret < 0) + goto err; + + parent = inode_parent (local->loc.inode, 0, NULL); + if (parent == NULL) { + gf_log (this->name, GF_LOG_WARNING, "parent is NULL"); + op_errno = EINVAL; + goto err; + } - local = frame->local; + if ((op_ret > 0) && (entries != NULL)) { + list_for_each_entry (entry, &entries->list, list) { + if (__is_root_gfid (entry->inode->gfid)) { + /* The list contains a sub-list for each + * possible path to the target inode. Each + * sub-list starts with the root entry of the + * tree and is followed by the child entries + * for a particular path to the target entry. + * The root entry is an implied sub-list + * delimiter, as it denotes we have started + * processing a new path. Reset the parent + * pointer and continue + */ - if ((op_ret >= 0) && priv->disk_usage_limit) { - gf_quota_usage_subtract (this, (local->stbuf.ia_blocks - - postbuf->ia_blocks) * 512); - loc_wipe (&local->loc); - } + tmp_parent = NULL; + } + + uuid_copy (loc.gfid, entry->d_stat.ia_gfid); - STACK_UNWIND_STRICT (truncate, frame, op_ret, op_errno, - prebuf, postbuf); - return 0; + loc.inode = inode_ref (entry->inode); + loc.parent = inode_ref (tmp_parent); + loc.name = entry->d_name; + + quota_fill_inodectx (this, entry->inode, entry->dict, + &loc, &entry->d_stat, &op_errno); + + tmp_parent = entry->inode; + + loc_wipe (&loc); + } + } + + quota_inode_ctx_get (local->loc.inode, this, &ctx, 0); + + if (ctx != NULL) { + LOCK (&ctx->lock); + { + list_for_each_entry (dentry, &ctx->parents, next) { + /* we built ancestry for a non-directory */ + tmp = __quota_dentry_new (NULL, dentry->name, + dentry->par); + quota_add_parent (tmp, &parents); + + if (list_empty (&tmp->next)) { + __quota_dentry_free (tmp); + tmp = NULL; + } + } + } + UNLOCK (&ctx->lock); + } + + if (list_empty (&parents)) { + /* we built ancestry for a directory */ + list_for_each_entry (entry, &entries->list, list) { + if (entry->inode == local->loc.inode) + break; + } + + GF_ASSERT (&entry->list != &entries->list); + + tmp = __quota_dentry_new (NULL, entry->d_name, parent->gfid); + quota_add_parent (tmp, &parents); + } + + local->ancestry_cbk (&parents, local->loc.inode, 0, 0, + local->ancestry_data); + goto cleanup; + +err: + local->ancestry_cbk (NULL, NULL, -1, op_errno, local->ancestry_data); + +cleanup: + STACK_DESTROY (frame->root); + quota_local_cleanup (this, local); + + if (parent != NULL) { + inode_unref (parent); + parent = NULL; + } + + list_for_each_entry_safe (dentry, tmp, &parents, next) { + __quota_dentry_free (dentry); + } + + return 0; } +int32_t +quota_build_ancestry_open_cbk (call_frame_t *frame, void *cookie, + xlator_t *this, int32_t op_ret, int32_t op_errno, + fd_t *fd, dict_t *xdata) +{ + dict_t *xdata_req = NULL; + quota_local_t *local = NULL; + + if (op_ret < 0) { + goto err; + } + + xdata_req = dict_new (); + if (xdata_req == NULL) { + op_ret = -ENOMEM; + goto err; + } + + op_ret = dict_set_int8 (xdata_req, QUOTA_LIMIT_KEY, 1); + if (op_ret < 0) { + op_errno = -op_ret; + goto err; + } + + op_ret = dict_set_int8 (xdata_req, GET_ANCESTRY_DENTRY_KEY, 1); + if (op_ret < 0) { + op_errno = -op_ret; + goto err; + } + + /* This would ask posix layer to construct dentry chain till root */ + STACK_WIND (frame, quota_build_ancestry_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->readdirp, fd, 0, 0, xdata_req); + + op_ret = 0; + +err: + fd_unref (fd); + + dict_unref (xdata_req); + + if (op_ret < 0) { + local = frame->local; + frame->local = NULL; + + local->ancestry_cbk (NULL, NULL, -1, op_errno, + local->ancestry_data); + quota_local_cleanup (this, local); + STACK_DESTROY (frame->root); + } + + return 0; +} int -quota_truncate_stat_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, struct iatt *buf) +quota_build_ancestry (inode_t *inode, quota_ancestry_built_t ancestry_cbk, + void *data) { - struct quota_local *local = NULL; - struct quota_priv *priv = NULL; + loc_t loc = {0, }; + fd_t *fd = NULL; + quota_local_t *local = NULL; + call_frame_t *new_frame = NULL; + int op_errno = EINVAL; + xlator_t *this = NULL; - priv = this->private; - local = frame->local; + this = THIS; - if (op_ret >= 0) { - local->stbuf = *buf; - } + loc.inode = inode_ref (inode); + uuid_copy (loc.gfid, inode->gfid); - STACK_WIND (frame, quota_truncate_cbk, - FIRST_CHILD (this), FIRST_CHILD (this)->fops->truncate, - &local->loc, local->offset); - return 0; -} + fd = fd_create (inode, 0); + + new_frame = create_frame (this, this->ctx->pool); + if (new_frame == NULL) { + op_errno = ENOMEM; + goto err; + } + + new_frame->root->uid = new_frame->root->gid = 0; + + local = quota_local_new (); + if (local == NULL) { + op_errno = ENOMEM; + goto err; + } + + new_frame->local = local; + local->ancestry_cbk = ancestry_cbk; + local->ancestry_data = data; + local->loc.inode = inode_ref (inode); + + if (IA_ISDIR (inode->ia_type)) { + STACK_WIND (new_frame, quota_build_ancestry_open_cbk, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->opendir, &loc, fd, + NULL); + } else { + STACK_WIND (new_frame, quota_build_ancestry_open_cbk, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->open, &loc, 0, fd, + NULL); + } + + loc_wipe (&loc); + return 0; + +err: + ancestry_cbk (NULL, NULL, -1, op_errno, data); + fd_unref (fd); + + local = new_frame->local; + new_frame->local = NULL; + + if (local != NULL) { + quota_local_cleanup (this, local); + } + + if (new_frame != NULL) { + STACK_DESTROY (new_frame->root); + } + + loc_wipe (&loc); + return 0; +} int -quota_truncate (call_frame_t *frame, xlator_t *this, - loc_t *loc, off_t offset) +quota_validate (call_frame_t *frame, inode_t *inode, xlator_t *this, + fop_lookup_cbk_t cbk_fn) { - struct quota_local *local = NULL; - struct quota_priv *priv = NULL; + quota_local_t *local = NULL; + int ret = 0; + dict_t *xdata = NULL; + quota_priv_t *priv = NULL; + + local = frame->local; + priv = this->private; + + LOCK (&local->lock); + { + loc_wipe (&local->validate_loc); + + ret = quota_inode_loc_fill (inode, &local->validate_loc); + if (ret < 0) { + gf_log (this->name, GF_LOG_WARNING, + "cannot fill loc for inode (gfid:%s), hence " + "aborting quota-checks and continuing with fop", + uuid_utoa (inode->gfid)); + } + } + UNLOCK (&local->lock); - priv = this->private; + if (ret < 0) { + ret = -ENOMEM; + goto err; + } - if (priv->disk_usage_limit) { - local = GF_CALLOC (1, sizeof (struct quota_local), - gf_quota_mt_quota_local); - frame->local = local; + xdata = dict_new (); + if (xdata == NULL) { + ret = -ENOMEM; + goto err; + } - loc_copy (&local->loc, loc); - local->offset = offset; + ret = dict_set_int8 (xdata, QUOTA_SIZE_KEY, 1); + if (ret < 0) { + gf_log (this->name, GF_LOG_WARNING, "dict set failed"); + ret = -ENOMEM; + goto err; + } - STACK_WIND (frame, quota_truncate_stat_cbk, - FIRST_CHILD(this), - FIRST_CHILD(this)->fops->stat, loc); - return 0; - } + ret = dict_set_str (xdata, "volume-uuid", priv->volume_uuid); + if (ret < 0) { + gf_log (this->name, GF_LOG_WARNING, "dict set failed"); + ret = -ENOMEM; + goto err; + } - STACK_WIND (frame, quota_truncate_cbk, - FIRST_CHILD(this), - FIRST_CHILD(this)->fops->truncate, - loc, offset); - return 0; + ret = quota_enforcer_lookup (frame, this, &local->validate_loc, xdata, + cbk_fn); + if (ret < 0) { + ret = -ENOTCONN; + goto err; + } + + ret = 0; +err: + return ret; } +void +quota_check_limit_continuation (struct list_head *parents, inode_t *inode, + int32_t op_ret, int32_t op_errno, void *data) +{ + call_frame_t *frame = NULL; + xlator_t *this = NULL; + quota_local_t *local = NULL; + quota_dentry_t *entry = NULL; + inode_t *parent = NULL; + int parent_count = 0; + + frame = data; + local = frame->local; + this = THIS; + + if ((op_ret < 0) || list_empty (parents)) { + if (op_ret >= 0) { + gf_log (this->name, GF_LOG_WARNING, + "Couldn't build ancestry for inode (gfid:%s). " + "Without knowing ancestors till root, quota " + "cannot be enforced. " + "Hence, failing fop with EIO", + uuid_utoa (inode->gfid)); + op_errno = EIO; + } -int -quota_ftruncate_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, struct iatt *prebuf, - struct iatt *postbuf) + quota_handle_validate_error (local, -1, op_errno); + goto out; + } + + list_for_each_entry (entry, parents, next) { + parent_count++; + } + + LOCK (&local->lock); + { + local->link_count += (parent_count - 1); + } + UNLOCK (&local->lock); + + list_for_each_entry (entry, parents, next) { + parent = inode_find (inode->table, entry->par); + + quota_check_limit (frame, parent, this, NULL, NULL); + } + +out: + return; +} + +int32_t +quota_check_limit (call_frame_t *frame, inode_t *inode, xlator_t *this, + char *name, uuid_t par) { - struct quota_priv *priv = NULL; - struct quota_local *local = NULL; + int32_t ret = -1, op_errno = EINVAL; + inode_t *_inode = NULL, *parent = NULL; + quota_inode_ctx_t *ctx = NULL; + quota_priv_t *priv = NULL; + quota_local_t *local = NULL; + char need_validate = 0; + gf_boolean_t hard_limit_exceeded = 0; + int64_t delta = 0, wouldbe_size = 0; + int64_t space_available = 0; + uint64_t value = 0; + char just_validated = 0; + uuid_t trav_uuid = {0,}; + uint32_t timeout = 0; + + GF_VALIDATE_OR_GOTO ("quota", this, err); + GF_VALIDATE_OR_GOTO (this->name, frame, err); + GF_VALIDATE_OR_GOTO (this->name, inode, err); + + local = frame->local; + GF_VALIDATE_OR_GOTO (this->name, local, err); + + delta = local->delta; + + GF_VALIDATE_OR_GOTO (this->name, local->stub, err); + /* Allow all the trusted clients + * Don't block the gluster internal processes like rebalance, gsyncd, + * self heal etc from the disk quotas. + * + * Method: Allow all the clients with PID negative. This is by the + * assumption that any kernel assigned pid doesn't have the negative + * number. + */ + if (0 > frame->root->pid) { + ret = 0; + quota_link_count_decrement (local); + goto done; + } - local = frame->local; - priv = this->private; + priv = this->private; - if ((op_ret >= 0) && priv->disk_usage_limit) { - gf_quota_usage_subtract (this, (local->stbuf.ia_blocks - - postbuf->ia_blocks) * 512); - fd_unref (local->fd); - } + inode_ctx_get (inode, this, &value); + ctx = (quota_inode_ctx_t *)(unsigned long)value; + + _inode = inode_ref (inode); + + LOCK (&local->lock); + { + just_validated = local->just_validated; + local->just_validated = 0; + } + UNLOCK (&local->lock); + + if ( par != NULL ) { + uuid_copy (trav_uuid, par); + } + + do { + if (ctx != NULL && (ctx->hard_lim > 0 || ctx->soft_lim > 0)) { + wouldbe_size = ctx->size + delta; + + LOCK (&ctx->lock); + { + timeout = priv->soft_timeout; + + if ((ctx->soft_lim >= 0) + && (wouldbe_size > ctx->soft_lim)) { + timeout = priv->hard_timeout; + } + + if (!just_validated + && quota_timeout (&ctx->tv, timeout)) { + need_validate = 1; + } else if (wouldbe_size >= ctx->hard_lim) { + hard_limit_exceeded = 1; + } + } + UNLOCK (&ctx->lock); + + if (need_validate) { + ret = quota_validate (frame, _inode, this, + quota_validate_cbk); + if (ret < 0) { + op_errno = -ret; + goto err; + } + + break; + } + + if (hard_limit_exceeded) { + local->op_ret = -1; + local->op_errno = EDQUOT; + + space_available = ctx->hard_lim - ctx->size; + + if (space_available < 0) + space_available = 0; + + if ((local->space_available < 0) + || (local->space_available + > space_available)){ + local->space_available + = space_available; + + } + + if (space_available == 0) { + op_errno = EDQUOT; + goto err; + } + } + + /* We log usage only if quota limit is configured on + that inode. */ + quota_log_usage (this, ctx, _inode, delta); + } + + if (__is_root_gfid (_inode->gfid)) { + quota_link_count_decrement (local); + break; + } + + parent = inode_parent (_inode, trav_uuid, name); + + if (name != NULL) { + name = NULL; + uuid_clear (trav_uuid); + } + + if (parent == NULL) { + ret = quota_build_ancestry (_inode, + quota_check_limit_continuation, + frame); + if (ret < 0) { + op_errno = -ret; + goto err; + } + + break; + } + + inode_unref (_inode); + _inode = parent; + just_validated = 0; + + if (_inode == NULL) { + break; + } + + value = 0; + inode_ctx_get (_inode, this, &value); + ctx = (quota_inode_ctx_t *)(unsigned long)value; + } while (1); + + if (_inode != NULL) { + inode_unref (_inode); + _inode = NULL; + } + +done: + return 0; - STACK_UNWIND_STRICT (ftruncate, frame, op_ret, op_errno, - prebuf, postbuf); - return 0; +err: + quota_handle_validate_error (local, -1, op_errno); + + inode_unref (_inode); + return 0; } +inline int +quota_get_limits (xlator_t *this, dict_t *dict, int64_t *hard_lim, + int64_t *soft_lim) +{ + quota_limit_t *limit = NULL; + quota_priv_t *priv = NULL; + int64_t soft_lim_percent = 0, *ptr = NULL; + int ret = 0; + + if ((this == NULL) || (dict == NULL) || (hard_lim == NULL) + || (soft_lim == NULL)) + goto out; + + priv = this->private; + + ret = dict_get_bin (dict, QUOTA_LIMIT_KEY, (void **) &ptr); + limit = (quota_limit_t *)ptr; + + if (limit) { + *hard_lim = ntoh64 (limit->hard_lim); + soft_lim_percent = ntoh64 (limit->soft_lim_percent); + } + + if (soft_lim_percent < 0) { + soft_lim_percent = priv->default_soft_lim; + } + + if ((*hard_lim > 0) && (soft_lim_percent > 0)) { + *soft_lim = (soft_lim_percent * (*hard_lim))/100; + } + +out: + return 0; +} int -quota_ftruncate_fstat_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, struct iatt *buf) +quota_fill_inodectx (xlator_t *this, inode_t *inode, dict_t *dict, + loc_t *loc, struct iatt *buf, int32_t *op_errno) { - struct quota_local *local = NULL; - struct quota_priv *priv = NULL; + int32_t ret = -1; + char found = 0; + quota_inode_ctx_t *ctx = NULL; + quota_dentry_t *dentry = NULL; + uint64_t value = 0; + int64_t hard_lim = -1, soft_lim = -1; + + quota_get_limits (this, dict, &hard_lim, &soft_lim); + + inode_ctx_get (inode, this, &value); + ctx = (quota_inode_ctx_t *)(unsigned long)value; + + if ((((ctx == NULL) || (ctx->hard_lim == hard_lim)) + && (hard_lim < 0) && !QUOTA_REG_OR_LNK_FILE (buf->ia_type))) { + ret = 0; + goto out; + } - priv = this->private; - local = frame->local; + ret = quota_inode_ctx_get (inode, this, &ctx, 1); + if ((ret == -1) || (ctx == NULL)) { + gf_log (this->name, GF_LOG_WARNING, "cannot create quota " + "context in inode(gfid:%s)", + uuid_utoa (inode->gfid)); + ret = -1; + *op_errno = ENOMEM; + goto out; + } - if (op_ret >= 0) { - local->stbuf = *buf; - } + LOCK (&ctx->lock); + { + ctx->hard_lim = hard_lim; + ctx->soft_lim = soft_lim; - STACK_WIND (frame, quota_ftruncate_cbk, - FIRST_CHILD (this), FIRST_CHILD (this)->fops->ftruncate, - local->fd, local->offset); - return 0; + ctx->buf = *buf; + + if (!QUOTA_REG_OR_LNK_FILE (buf->ia_type)) { + goto unlock; + } + + if (loc->name == NULL) + goto unlock; + + list_for_each_entry (dentry, &ctx->parents, next) { + if ((strcmp (dentry->name, loc->name) == 0) && + (uuid_compare (loc->parent->gfid, + dentry->par) == 0)) { + found = 1; + break; + } + } + + if (!found) { + dentry = __quota_dentry_new (ctx, + (char *)loc->name, + loc->parent->gfid); + if (dentry == NULL) { + /* + gf_log (this->name, GF_LOG_WARNING, + "cannot create a new dentry (par:%" + PRId64", name:%s) for inode(ino:%" + PRId64", gfid:%s)", + uuid_utoa (local->loc.inode->gfid)); + */ + ret = -1; + *op_errno = ENOMEM; + goto unlock; + } + } + } +unlock: + UNLOCK (&ctx->lock); + +out: + return ret; } +int32_t +quota_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, inode_t *inode, + struct iatt *buf, dict_t *dict, struct iatt *postparent) +{ + quota_local_t *local = NULL; -int -quota_ftruncate (call_frame_t *frame, xlator_t *this, - fd_t *fd, off_t offset) + if (op_ret < 0) + goto unwind; + + local = frame->local; + + op_ret = quota_fill_inodectx (this, inode, dict, &local->loc, buf, + &op_errno); + +unwind: + QUOTA_STACK_UNWIND (lookup, frame, op_ret, op_errno, inode, buf, + dict, postparent); + return 0; +} + + +int32_t +quota_lookup (call_frame_t *frame, xlator_t *this, loc_t *loc, + dict_t *xattr_req) { - struct quota_local *local = NULL; - struct quota_priv *priv = NULL; + quota_priv_t *priv = NULL; + int32_t ret = -1; + quota_local_t *local = NULL; + priv = this->private; - priv = this->private; + WIND_IF_QUOTAOFF (priv->is_quota_on, off); - if (priv->disk_usage_limit) { - local = GF_CALLOC (1, sizeof (struct quota_local), - gf_quota_mt_quota_local); - frame->local = local; + xattr_req = xattr_req ? dict_ref(xattr_req) : dict_new(); + if (!xattr_req) + goto err; - local->fd = fd_ref (fd); - local->offset = offset; + local = quota_local_new (); + if (local == NULL) { + goto err; + } - STACK_WIND (frame, quota_ftruncate_fstat_cbk, - FIRST_CHILD(this), - FIRST_CHILD(this)->fops->fstat, fd); - return 0; - } + frame->local = local; + loc_copy (&local->loc, loc); + + ret = dict_set_int8 (xattr_req, QUOTA_LIMIT_KEY, 1); + if (ret < 0) { + gf_log (this->name, GF_LOG_WARNING, + "dict set of key for hard-limit failed"); + goto err; + } + + STACK_WIND (frame, quota_lookup_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->lookup, loc, xattr_req); + + ret = 0; + +err: + if (xattr_req) + dict_unref (xattr_req); - STACK_WIND (frame, quota_ftruncate_cbk, - FIRST_CHILD(this), - FIRST_CHILD(this)->fops->ftruncate, - fd, offset); - return 0; + if (ret < 0) { + QUOTA_STACK_UNWIND (lookup, frame, -1, ENOMEM, + NULL, NULL, NULL, NULL); + } + + return 0; + +off: + STACK_WIND_TAIL (frame, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->lookup, loc, xattr_req); + return 0; } +int32_t +quota_writev_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *prebuf, + struct iatt *postbuf, dict_t *xdata) +{ + int32_t ret = 0; + uint64_t ctx_int = 0; + quota_inode_ctx_t *ctx = NULL; + quota_local_t *local = NULL; -int -quota_mknod_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, - inode_t *inode, struct iatt *buf, struct iatt *preparent, - struct iatt *postparent) + local = frame->local; + + if ((op_ret < 0) || (local == NULL)) { + goto out; + } + + ret = inode_ctx_get (local->loc.inode, this, &ctx_int); + if (ret) { + gf_log (this->name, GF_LOG_WARNING, + "%s: failed to get the context", local->loc.path); + goto out; + } + + ctx = (quota_inode_ctx_t *)(unsigned long) ctx_int; + + if (ctx == NULL) { + gf_log (this->name, GF_LOG_WARNING, + "quota context not set in %s (gfid:%s)", + local->loc.path, uuid_utoa (local->loc.inode->gfid)); + goto out; + } + + LOCK (&ctx->lock); + { + ctx->buf = *postbuf; + } + UNLOCK (&ctx->lock); + +out: + QUOTA_STACK_UNWIND (writev, frame, op_ret, op_errno, prebuf, postbuf, + xdata); + + return 0; +} + + +int32_t +quota_writev_helper (call_frame_t *frame, xlator_t *this, fd_t *fd, + struct iovec *vector, int32_t count, off_t off, + uint32_t flags, struct iobref *iobref, dict_t *xdata) { - struct quota_priv *priv = NULL; + quota_local_t *local = NULL; + int32_t op_errno = EINVAL; + quota_priv_t *priv = NULL; + struct iovec *new_vector = NULL; + int32_t new_count = 0; + + priv = this->private; + + local = frame->local; + if (local == NULL) { + gf_log (this->name, GF_LOG_WARNING, "local is NULL"); + goto unwind; + } + + if (local->op_ret == -1) { + op_errno = local->op_errno; + + if ((op_errno == EDQUOT) && (local->space_available > 0)) { + new_count = iov_subset (vector, count, 0, + local->space_available, NULL); + + new_vector = GF_CALLOC (new_count, + sizeof (struct iovec), + gf_common_mt_iovec); + if (new_vector == NULL) { + local->op_ret = -1; + local->op_errno = ENOMEM; + goto unwind; + } + + new_count = iov_subset (vector, count, 0, + local->space_available, + new_vector); + + vector = new_vector; + count = new_count; + } else { + goto unwind; + } + } - priv = this->private; + STACK_WIND (frame, quota_writev_cbk, + FIRST_CHILD(this), FIRST_CHILD(this)->fops->writev, fd, + vector, count, off, flags, iobref, xdata); - if ((op_ret >= 0) && priv->disk_usage_limit) { - gf_quota_usage_add (this, buf->ia_blocks * 512); - } + if (new_vector != NULL) + GF_FREE (new_vector); + + return 0; - STACK_UNWIND_STRICT (mknod, frame, op_ret, op_errno, inode, buf, - preparent, postparent); - return 0; +unwind: + QUOTA_STACK_UNWIND (writev, frame, -1, op_errno, NULL, NULL, NULL); + return 0; } -int -quota_mknod (call_frame_t *frame, xlator_t *this, - loc_t *loc, mode_t mode, dev_t rdev) +int32_t +quota_writev (call_frame_t *frame, xlator_t *this, fd_t *fd, + struct iovec *vector, int32_t count, off_t off, + uint32_t flags, struct iobref *iobref, dict_t *xdata) { - struct quota_priv *priv = NULL; + quota_priv_t *priv = NULL; + int32_t ret = -1, op_errno = EINVAL; + int32_t parents = 0; + uint64_t size = 0; + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + quota_dentry_t *dentry = NULL, *tmp = NULL; + call_stub_t *stub = NULL; + struct list_head head = {0, }; - priv = this->private; + priv = this->private; - if (gf_quota_check_free_disk (this) == -1) { - gf_log (this->name, GF_LOG_ERROR, - "min-free-disk limit (%u) crossed, current available is %u", - priv->min_free_disk_limit, priv->current_free_disk); - STACK_UNWIND_STRICT (mknod, frame, -1, ENOSPC, NULL, NULL, - NULL, NULL); - return 0; - } + WIND_IF_QUOTAOFF (priv->is_quota_on, off); + + INIT_LIST_HEAD (&head); - if (priv->current_disk_usage > priv->disk_usage_limit) { - gf_log (this->name, GF_LOG_ERROR, - "Disk usage limit (%"PRIu64") crossed, current usage is %"PRIu64"", - priv->disk_usage_limit, priv->current_disk_usage); - STACK_UNWIND_STRICT (mknod, frame, -1, ENOSPC, NULL, NULL, - NULL, NULL); - return 0; + GF_ASSERT (frame); + GF_VALIDATE_OR_GOTO ("quota", this, unwind); + GF_VALIDATE_OR_GOTO (this->name, fd, unwind); + + local = quota_local_new (); + if (local == NULL) { + goto unwind; + } + + frame->local = local; + local->loc.inode = inode_ref (fd->inode); + + ret = quota_inode_ctx_get (fd->inode, this, &ctx, 0); + if (ctx == NULL) { + gf_log (this->name, GF_LOG_DEBUG, "quota context is NULL on " + "inode (%s). " + "If quota is not enabled recently and crawler has " + "finished crawling, its an error", + uuid_utoa (fd->inode->gfid)); + } + + stub = fop_writev_stub (frame, quota_writev_helper, fd, vector, count, + off, flags, iobref, xdata); + if (stub == NULL) { + op_errno = ENOMEM; + goto unwind; + } + + priv = this->private; + GF_VALIDATE_OR_GOTO (this->name, priv, unwind); + + size = iov_length (vector, count); + if (ctx != NULL) { + LOCK (&ctx->lock); + { + list_for_each_entry (dentry, &ctx->parents, next) { + tmp = __quota_dentry_new (NULL, dentry->name, + dentry->par); + list_add_tail (&tmp->next, &head); + parents++; + } + } + UNLOCK (&ctx->lock); } - STACK_WIND (frame, quota_mknod_cbk, - FIRST_CHILD(this), - FIRST_CHILD(this)->fops->mknod, - loc, mode, rdev); - return 0; + LOCK (&local->lock); + { + local->delta = size; + local->link_count = (parents != 0) ? parents : 1; + local->stub = stub; + } + UNLOCK (&local->lock); + + if (parents == 0) { + /* nameless lookup on this inode, allow quota to reconstruct + * ancestry as part of check_limit. + */ + quota_check_limit (frame, fd->inode, this, NULL, NULL); + } else { + list_for_each_entry_safe (dentry, tmp, &head, next) { + quota_check_limit (frame, fd->inode, this, dentry->name, + dentry->par); + __quota_dentry_free (dentry); + } + } + + return 0; + +unwind: + QUOTA_STACK_UNWIND (writev, frame, -1, op_errno, NULL, NULL, NULL); + return 0; + +off: + STACK_WIND_TAIL (frame, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->writev, fd, + vector, count, off, flags, iobref, xdata); + return 0; } -int +int32_t quota_mkdir_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, inode_t *inode, + int32_t op_ret, int32_t op_errno, inode_t *inode, struct iatt *buf, struct iatt *preparent, - struct iatt *postparent) + struct iatt *postparent, dict_t *xdata) { - struct quota_priv *priv = NULL; + QUOTA_STACK_UNWIND (mkdir, frame, op_ret, op_errno, inode, + buf, preparent, postparent, xdata); + return 0; +} - priv = this->private; - if ((op_ret >= 0) && priv->disk_usage_limit) { - gf_quota_usage_subtract (this, buf->ia_blocks * 512); - } +int32_t +quota_mkdir_helper (call_frame_t *frame, xlator_t *this, loc_t *loc, + mode_t mode, mode_t umask, dict_t *xdata) +{ + quota_local_t *local = NULL; + int32_t op_errno = EINVAL; + + local = frame->local; + if (local == NULL) { + gf_log (this->name, GF_LOG_WARNING, "local is NULL"); + goto unwind; + } + + op_errno = local->op_errno; + + if (local->op_ret == -1) { + goto unwind; + } - STACK_UNWIND_STRICT (mkdir, frame, op_ret, op_errno, inode, buf, - preparent, postparent); - return 0; + STACK_WIND (frame, quota_mkdir_cbk, + FIRST_CHILD(this), FIRST_CHILD(this)->fops->mkdir, loc, + mode, umask, xdata); + + return 0; + +unwind: + QUOTA_STACK_UNWIND (mkdir, frame, -1, op_errno, NULL, NULL, + NULL, NULL, NULL); + return 0; } -int -quota_mkdir (call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode) +int32_t +quota_mkdir (call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode, + mode_t umask, dict_t *xdata) { - struct quota_priv *priv = NULL; + quota_priv_t *priv = NULL; + int32_t ret = 0, op_errno = 0; + quota_local_t *local = NULL; + call_stub_t *stub = NULL; - priv = this->private; + priv = this->private; - if (gf_quota_check_free_disk (this) == -1) { - gf_log (this->name, GF_LOG_ERROR, - "min-free-disk limit (%u) crossed, current available is %u", - priv->min_free_disk_limit, priv->current_free_disk); - STACK_UNWIND_STRICT (mkdir, frame, -1, ENOSPC, NULL, NULL, - NULL, NULL); - return 0; - - } + WIND_IF_QUOTAOFF (priv->is_quota_on, off); + + local = quota_local_new (); + if (local == NULL) { + op_errno = ENOMEM; + goto err; + } + + frame->local = local; - if (priv->current_disk_usage > priv->disk_usage_limit) { - gf_log (this->name, GF_LOG_ERROR, - "Disk usage limit (%"PRIu64") crossed, current usage is %"PRIu64"", - priv->disk_usage_limit, priv->current_disk_usage); - STACK_UNWIND_STRICT (mkdir, frame, -1, ENOSPC, NULL, NULL, - NULL, NULL); - return 0; + ret = loc_copy (&local->loc, loc); + if (ret) { + op_errno = ENOMEM; + gf_log (this->name, GF_LOG_WARNING, "loc_copy failed"); + goto err; } - STACK_WIND (frame, quota_mkdir_cbk, - FIRST_CHILD(this), - FIRST_CHILD(this)->fops->mkdir, - loc, mode); + stub = fop_mkdir_stub (frame, quota_mkdir_helper, loc, mode, umask, + xdata); + if (stub == NULL) { + op_errno = ENOMEM; + goto err; + } + + LOCK (&local->lock); + { + local->stub = stub; + local->delta = 0; + local->link_count = 1; + } + UNLOCK (&local->lock); + + quota_check_limit (frame, loc->parent, this, NULL, NULL); + return 0; + +err: + QUOTA_STACK_UNWIND (mkdir, frame, -1, op_errno, NULL, NULL, NULL, + NULL, NULL); - return 0; + return 0; + +off: + STACK_WIND_TAIL (frame, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->mkdir, + loc, mode, umask, xdata); + + return 0; } -int +int32_t +quota_create_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, fd_t *fd, inode_t *inode, + struct iatt *buf, struct iatt *preparent, + struct iatt *postparent, dict_t *xdata) +{ + int32_t ret = -1; + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + quota_dentry_t *dentry = NULL; + + local = frame->local; + if (op_ret < 0) { + goto unwind; + } + + ret = quota_inode_ctx_get (inode, this, &ctx, 1); + if ((ret == -1) || (ctx == NULL)) { + gf_log (this->name, GF_LOG_WARNING, "cannot create quota " + "context in inode(gfid:%s)", + uuid_utoa (inode->gfid)); + op_ret = -1; + op_errno = ENOMEM; + goto unwind; + } + + LOCK (&ctx->lock); + { + ctx->buf = *buf; + + dentry = __quota_dentry_new (ctx, (char *)local->loc.name, + local->loc.parent->gfid); + if (dentry == NULL) { + gf_log (this->name, GF_LOG_WARNING, + "cannot create a new dentry (name:%s) for " + "inode(gfid:%s)", local->loc.name, + uuid_utoa (local->loc.inode->gfid)); + op_ret = -1; + op_errno = ENOMEM; + goto unlock; + } + } +unlock: + UNLOCK (&ctx->lock); + +unwind: + QUOTA_STACK_UNWIND (create, frame, op_ret, op_errno, fd, inode, buf, + preparent, postparent, xdata); + return 0; +} + + +int32_t +quota_create_helper (call_frame_t *frame, xlator_t *this, loc_t *loc, + int32_t flags, mode_t mode, mode_t umask, fd_t *fd, + dict_t *xdata) +{ + quota_local_t *local = NULL; + int32_t op_errno = EINVAL; + quota_priv_t *priv = NULL; + + local = frame->local; + + priv = this->private; + + if (local == NULL) { + gf_log (this->name, GF_LOG_WARNING, "local is NULL"); + goto unwind; + } + + if (local->op_ret == -1) { + op_errno = local->op_errno; + goto unwind; + } + + + STACK_WIND (frame, quota_create_cbk, + FIRST_CHILD (this), FIRST_CHILD (this)->fops->create, loc, + flags, mode, umask, fd, xdata); + return 0; + +unwind: + QUOTA_STACK_UNWIND (create, frame, -1, op_errno, NULL, NULL, + NULL, NULL, NULL, NULL); + return 0; +} + + +int32_t +quota_create (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags, + mode_t mode, mode_t umask, fd_t *fd, dict_t *xdata) +{ + quota_priv_t *priv = NULL; + int32_t ret = -1; + quota_local_t *local = NULL; + int32_t op_errno = 0; + call_stub_t *stub = NULL; + + priv = this->private; + + WIND_IF_QUOTAOFF (priv->is_quota_on, off); + + local = quota_local_new (); + if (local == NULL) { + op_errno = ENOMEM; + goto err; + } + + frame->local = local; + + ret = loc_copy (&local->loc, loc); + if (ret) { + gf_log (this->name, GF_LOG_WARNING, "loc_copy failed"); + op_errno = ENOMEM; + goto err; + } + + stub = fop_create_stub (frame, quota_create_helper, loc, flags, mode, + umask, fd, xdata); + if (stub == NULL) { + goto err; + } + + LOCK (&local->lock); + { + local->link_count = 1; + local->stub = stub; + local->delta = 0; + } + UNLOCK (&local->lock); + + quota_check_limit (frame, loc->parent, this, NULL, NULL); + return 0; +err: + QUOTA_STACK_UNWIND (create, frame, -1, op_errno, NULL, NULL, NULL, + NULL, NULL, NULL); + + return 0; + +off: + STACK_WIND_TAIL (frame, FIRST_CHILD (this), + FIRST_CHILD (this)->fops->create, loc, + flags, mode, umask, fd, xdata); + return 0; +} + + +int32_t quota_unlink_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, struct iatt *preparent, - struct iatt *postparent) + int32_t op_ret, int32_t op_errno, struct iatt *preparent, + struct iatt *postparent, dict_t *xdata) { - struct quota_local *local = NULL; + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + uint64_t value = 0; + quota_dentry_t *dentry = NULL; + quota_dentry_t *old_dentry = NULL; + + if (op_ret < 0) { + goto out; + } - local = frame->local; + local = (quota_local_t *) frame->local; - if (local) { - if (op_ret >= 0) { - gf_quota_usage_subtract (this, - local->stbuf.ia_blocks * 512); - } - loc_wipe (&local->loc); - } + inode_ctx_get (local->loc.inode, this, &value); + ctx = (quota_inode_ctx_t *)(unsigned long)value; + + if (ctx == NULL) { + gf_log (this->name, GF_LOG_WARNING, + "quota context not set in inode (gfid:%s)", + uuid_utoa (local->loc.inode->gfid)); + goto out; + } - STACK_UNWIND_STRICT (unlink, frame, op_ret, op_errno, preparent, postparent); - return 0; + LOCK (&ctx->lock); + { + list_for_each_entry (dentry, &ctx->parents, next) { + if ((strcmp (dentry->name, local->loc.name) == 0) && + (uuid_compare (local->loc.parent->gfid, + dentry->par) == 0)) { + old_dentry = dentry; + break; + } + } + if (old_dentry) + __quota_dentry_free (old_dentry); + } + UNLOCK (&ctx->lock); + +out: + QUOTA_STACK_UNWIND (unlink, frame, op_ret, op_errno, preparent, + postparent, xdata); + return 0; } -int -quota_unlink_stat_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, struct iatt *buf) +int32_t +quota_unlink (call_frame_t *frame, xlator_t *this, loc_t *loc, int xflag, + dict_t *xdata) { - struct quota_local *local = NULL; + quota_priv_t *priv = NULL; + int32_t ret = -1; + quota_local_t *local = NULL; - local = frame->local; + priv = this->private; - if (op_ret >= 0) { - if (buf->ia_nlink == 1) { - local->stbuf = *buf; - } - } + WIND_IF_QUOTAOFF (priv->is_quota_on, off); + + local = quota_local_new (); + if (local == NULL) { + goto err; + } + + frame->local = local; - STACK_WIND (frame, quota_unlink_cbk, - FIRST_CHILD(this), - FIRST_CHILD(this)->fops->unlink, - &local->loc); + if (xdata && dict_get (xdata, GLUSTERFS_INTERNAL_FOP_KEY)) { + local->skip_check = _gf_true; + } + + ret = loc_copy (&local->loc, loc); + if (ret) { + gf_log (this->name, GF_LOG_WARNING, "loc_copy failed"); + goto err; + } + + STACK_WIND (frame, quota_unlink_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->unlink, loc, xflag, xdata); + + ret = 0; - return 0; +err: + if (ret == -1) { + QUOTA_STACK_UNWIND (unlink, frame, -1, 0, NULL, NULL, NULL); + } + + return 0; + +off: + STACK_WIND_TAIL (frame, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->unlink, loc, xflag, xdata); + return 0; } -int -quota_unlink (call_frame_t *frame, xlator_t *this, loc_t *loc) +int32_t +quota_link_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, inode_t *inode, + struct iatt *buf, struct iatt *preparent, + struct iatt *postparent, dict_t *xdata) { - struct quota_local *local = NULL; - struct quota_priv *priv = NULL; + int32_t ret = -1; + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + quota_dentry_t *dentry = NULL; + char found = 0; + + if (op_ret < 0) { + goto out; + } - priv = this->private; + local = (quota_local_t *) frame->local; - if (priv->disk_usage_limit) { - local = GF_CALLOC (1, sizeof (struct quota_local), - gf_quota_mt_quota_local); - frame->local = local; + if (local->skip_check) + goto out; - loc_copy (&local->loc, loc); + ret = quota_inode_ctx_get (inode, this, &ctx, 0); + if ((ret == -1) || (ctx == NULL)) { + gf_log (this->name, GF_LOG_DEBUG, "quota context is NULL on " + "inode (%s). " + "If quota is not enabled recently and crawler has " + "finished crawling, its an error", + uuid_utoa (inode->gfid)); + goto out; + } - STACK_WIND (frame, - quota_unlink_stat_cbk, - FIRST_CHILD(this), - FIRST_CHILD(this)->fops->stat, - loc); - return 0; - } + LOCK (&ctx->lock); + { + list_for_each_entry (dentry, &ctx->parents, next) { + if ((strcmp (dentry->name, local->loc.name) == 0) && + (uuid_compare (local->loc.parent->gfid, + dentry->par) == 0)) { + found = 1; + gf_log (this->name, GF_LOG_WARNING, + "new entry being linked (name:%s) for " + "inode (gfid:%s) is already present " + "in inode-dentry-list", dentry->name, + uuid_utoa (local->loc.inode->gfid)); + break; + } + } + + if (!found) { + dentry = __quota_dentry_new (ctx, + (char *)local->loc.name, + local->loc.parent->gfid); + if (dentry == NULL) { + gf_log (this->name, GF_LOG_WARNING, + "cannot create a new dentry (name:%s) " + "for inode(gfid:%s)", local->loc.name, + uuid_utoa (local->loc.inode->gfid)); + op_ret = -1; + op_errno = ENOMEM; + goto unlock; + } + } + + ctx->buf = *buf; + } +unlock: + UNLOCK (&ctx->lock); - STACK_WIND (frame, quota_unlink_cbk, - FIRST_CHILD(this), - FIRST_CHILD(this)->fops->unlink, - loc); - return 0; +out: + QUOTA_STACK_UNWIND (link, frame, op_ret, op_errno, inode, buf, + preparent, postparent, xdata); + + return 0; } -int -quota_rmdir_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, struct iatt *preparent, - struct iatt *postparent) +int32_t +quota_link_helper (call_frame_t *frame, xlator_t *this, loc_t *oldloc, + loc_t *newloc, dict_t *xdata) { - struct quota_local *local = NULL; + quota_local_t *local = NULL; + int32_t op_errno = EINVAL; + quota_priv_t *priv = NULL; - local = frame->local; + priv = this->private; - if (local) { - if (op_ret >= 0) { - gf_quota_usage_subtract (this, local->stbuf.ia_blocks * 512); - } - loc_wipe (&local->loc); - } + local = frame->local; + if (local == NULL) { + gf_log (this->name, GF_LOG_WARNING, "local is NULL"); + goto unwind; + } + + op_errno = local->op_errno; + + if (local->op_ret == -1) { + goto unwind; + } - STACK_UNWIND_STRICT (rmdir, frame, op_ret, op_errno, preparent, postparent); - return 0; + STACK_WIND (frame, quota_link_cbk, + FIRST_CHILD(this), FIRST_CHILD(this)->fops->link, oldloc, + newloc, xdata); + return 0; + +unwind: + QUOTA_STACK_UNWIND (link, frame, -1, op_errno, NULL, NULL, + NULL, NULL, NULL); + return 0; } -int -quota_rmdir_stat_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, struct iatt *buf) +int32_t +quota_link (call_frame_t *frame, xlator_t *this, loc_t *oldloc, loc_t *newloc, + dict_t *xdata) { - struct quota_local *local = NULL; + quota_priv_t *priv = NULL; + int32_t ret = -1, op_errno = ENOMEM; + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + call_stub_t *stub = NULL; - local = frame->local; + priv = this->private; - if (op_ret >= 0) { - local->stbuf = *buf; - } + WIND_IF_QUOTAOFF (priv->is_quota_on, off); + + if (xdata && dict_get (xdata, GLUSTERFS_INTERNAL_FOP_KEY)) { + goto off; + } + + quota_inode_ctx_get (oldloc->inode, this, &ctx, 0); + if (ctx == NULL) { + gf_log (this->name, GF_LOG_DEBUG, "quota context is NULL on " + "inode (%s). " + "If quota is not enabled recently and crawler has " + "finished crawling, its an error", + uuid_utoa (oldloc->inode->gfid)); + } - STACK_WIND (frame, quota_rmdir_cbk, - FIRST_CHILD(this), - FIRST_CHILD(this)->fops->rmdir, - &local->loc); + local = quota_local_new (); + if (local == NULL) { + goto err; + } + + frame->local = (void *) local; + + + ret = loc_copy (&local->loc, newloc); + if (ret == -1) { + gf_log (this->name, GF_LOG_WARNING, "loc_copy failed"); + goto err; + } + + stub = fop_link_stub (frame, quota_link_helper, oldloc, newloc, xdata); + if (stub == NULL) { + goto err; + } + + LOCK (&local->lock); + { + local->link_count = 1; + local->stub = stub; + local->delta = (ctx != NULL) ? ctx->buf.ia_blocks * 512 : 0; + } + UNLOCK (&local->lock); - return 0; + quota_check_limit (frame, newloc->parent, this, NULL, NULL); + return 0; + +err: + QUOTA_STACK_UNWIND (link, frame, -1, op_errno, NULL, NULL, + NULL, NULL, NULL); + return 0; + +off: + STACK_WIND_TAIL (frame, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->link, oldloc, + newloc, xdata); + return 0; } -int -quota_rmdir (call_frame_t *frame, xlator_t *this, loc_t *loc) +int32_t +quota_rename_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *buf, + struct iatt *preoldparent, struct iatt *postoldparent, + struct iatt *prenewparent, struct iatt *postnewparent, + dict_t *xdata) { - struct quota_local *local = NULL; - struct quota_priv *priv = NULL; + int32_t ret = -1; + int64_t size = 0; + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + quota_dentry_t *old_dentry = NULL, *dentry = NULL; + char new_dentry_found = 0; + + if (op_ret < 0) { + goto out; + } - priv = this->private; + local = frame->local; + if (local == NULL) { + op_ret = -1; + op_errno = EINVAL; + gf_log (this->name, GF_LOG_WARNING, "local is NULL"); + goto out; + } - if (priv->disk_usage_limit) { - local = GF_CALLOC (1, sizeof (struct quota_local), - gf_quota_mt_quota_local); - frame->local = local; + if (QUOTA_REG_OR_LNK_FILE (local->oldloc.inode->ia_type)) { + size = buf->ia_blocks * 512; + } - loc_copy (&local->loc, loc); + if (!QUOTA_REG_OR_LNK_FILE (local->oldloc.inode->ia_type)) { + goto out; + } - STACK_WIND (frame, quota_rmdir_stat_cbk, - FIRST_CHILD(this), - FIRST_CHILD(this)->fops->stat, loc); - return 0; - } + ret = quota_inode_ctx_get (local->oldloc.inode, this, &ctx, 0); + if ((ret == -1) || (ctx == NULL)) { + gf_log (this->name, GF_LOG_DEBUG, "quota context is NULL on " + "inode (%s). " + "If quota is not enabled recently and crawler has " + "finished crawling, its an error", + uuid_utoa (local->oldloc.inode->gfid)); + + goto out; + } + + LOCK (&ctx->lock); + { + /* decision of whether to create a context in newloc->inode + * depends on fuse_rename_cbk's choice of inode it retains + * after rename. currently it just associates oldloc->inode + * with new parent and name. If this changes, following code + * should be changed to set a new context in newloc->inode. + */ + list_for_each_entry (dentry, &ctx->parents, next) { + if ((strcmp (dentry->name, local->oldloc.name) == 0) && + (uuid_compare (local->oldloc.parent->gfid, + dentry->par) == 0)) { + old_dentry = dentry; + } else if ((strcmp (dentry->name, + local->newloc.name) == 0) && + (uuid_compare (local->oldloc.parent->gfid, + dentry->par) == 0)) { + new_dentry_found = 1; + gf_log (this->name, GF_LOG_WARNING, + "new entry being linked (name:%s) for " + "inode (gfid:%s) is already present " + "in inode-dentry-list", dentry->name, + uuid_utoa (local->newloc.inode->gfid)); + break; + } + } + + if (old_dentry != NULL) { + __quota_dentry_free (old_dentry); + } else { + gf_log (this->name, GF_LOG_WARNING, + "dentry corresponding to the path just renamed " + "(name:%s) is not present", local->oldloc.name); + } + + if (!new_dentry_found) { + dentry = __quota_dentry_new (ctx, + (char *)local->newloc.name, + local->newloc.parent->gfid); + if (dentry == NULL) { + gf_log (this->name, GF_LOG_WARNING, + "cannot create a new dentry (name:%s) " + "for inode(gfid:%s)", + local->newloc.name, + uuid_utoa (local->newloc.inode->gfid)); + op_ret = -1; + op_errno = ENOMEM; + goto unlock; + } + } - STACK_WIND (frame, quota_rmdir_cbk, - FIRST_CHILD(this), - FIRST_CHILD(this)->fops->rmdir, - loc); - return 0; + ctx->buf = *buf; + } +unlock: + UNLOCK (&ctx->lock); + +out: + QUOTA_STACK_UNWIND (rename, frame, op_ret, op_errno, buf, preoldparent, + postoldparent, prenewparent, postnewparent, xdata); + + return 0; } -int +int32_t +quota_rename_helper (call_frame_t *frame, xlator_t *this, loc_t *oldloc, + loc_t *newloc, dict_t *xdata) +{ + quota_local_t *local = NULL; + int32_t op_errno = EINVAL; + quota_priv_t *priv = NULL; + + priv = this->private; + + local = frame->local; + if (local == NULL) { + gf_log (this->name, GF_LOG_WARNING, "local is NULL"); + goto unwind; + } + + op_errno = local->op_errno; + + if (local->op_ret == -1) { + goto unwind; + } + + STACK_WIND (frame, quota_rename_cbk, + FIRST_CHILD(this), FIRST_CHILD(this)->fops->rename, oldloc, + newloc, xdata); + + return 0; + +unwind: + QUOTA_STACK_UNWIND (rename, frame, -1, op_errno, NULL, NULL, + NULL, NULL, NULL, NULL); + return 0; +} + + +static int32_t +quota_rename_get_size_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, inode_t *inode, + struct iatt *buf, dict_t *xdata, + struct iatt *postparent) +{ + quota_local_t *local = NULL; + int32_t ret = 0; + int64_t *size = 0; + + GF_ASSERT (frame); + GF_VALIDATE_OR_GOTO_WITH_ERROR ("quota", this, out, op_errno, + EINVAL); + GF_VALIDATE_OR_GOTO_WITH_ERROR (this->name, xdata, out, op_errno, + EINVAL); + local = frame->local; + GF_ASSERT (local); + local->link_count = 1; + + if (op_ret < 0) + goto out; + + + ret = dict_get_bin (xdata, QUOTA_SIZE_KEY, (void **) &size); + if (ret < 0) { + gf_log (this->name, GF_LOG_WARNING, + "size key not present in dict"); + op_errno = EINVAL; + goto out; + } + local->delta = ntoh64 (*size); + quota_check_limit (frame, local->newloc.parent, this, + NULL, NULL); + return 0; + +out: + quota_handle_validate_error (local, -1, op_errno); + return 0; +} + +int32_t +quota_rename (call_frame_t *frame, xlator_t *this, loc_t *oldloc, + loc_t *newloc, dict_t *xdata) +{ + quota_priv_t *priv = NULL; + int32_t ret = -1, op_errno = ENOMEM; + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + call_stub_t *stub = NULL; + + priv = this->private; + + WIND_IF_QUOTAOFF (priv->is_quota_on, off); + + local = quota_local_new (); + if (local == NULL) { + goto err; + } + + frame->local = local; + + ret = loc_copy (&local->oldloc, oldloc); + if (ret < 0) { + gf_log (this->name, GF_LOG_WARNING, "loc_copy failed"); + goto err; + } + + ret = loc_copy (&local->newloc, newloc); + if (ret < 0) { + gf_log (this->name, GF_LOG_WARNING, "loc_copy failed"); + goto err; + } + + stub = fop_rename_stub (frame, quota_rename_helper, oldloc, newloc, + xdata); + if (stub == NULL) { + goto err; + } + + LOCK (&local->lock); + { + local->link_count = 1; + local->stub = stub; + } + UNLOCK (&local->lock); + + if (QUOTA_REG_OR_LNK_FILE (oldloc->inode->ia_type)) { + ret = quota_inode_ctx_get (oldloc->inode, this, &ctx, 0); + if (ctx == NULL) { + gf_log (this->name, GF_LOG_WARNING, + "quota context not set in inode (gfid:%s), " + "considering file size as zero while enforcing " + "quota on new ancestry", + oldloc->inode ? uuid_utoa (oldloc->inode->gfid) + : "0"); + local->delta = 0; + + } else { + + /* FIXME: We need to account for the size occupied by this + * inode on the target directory. To avoid double + * accounting, we need to modify enforcer to perform + * quota_check_limit only uptil the least common ancestor + * directory inode*/ + + /* FIXME: The following code assumes that regular files and + *linkfiles are present, in their entirety, in a single + brick. This *assumption is invalid in the case of + stripe.*/ + + local->delta = ctx->buf.ia_blocks * 512; + } + + } else if (IA_ISDIR (oldloc->inode->ia_type)) { + ret = quota_validate (frame, oldloc->inode, this, + quota_rename_get_size_cbk); + if (ret){ + op_errno = -ret; + goto err; + } + + return 0; + } + + quota_check_limit (frame, newloc->parent, this, NULL, NULL); + return 0; + +err: + QUOTA_STACK_UNWIND (rename, frame, -1, op_errno, NULL, + NULL, NULL, NULL, NULL, NULL); + return 0; + +off: + STACK_WIND_TAIL (frame, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->rename, oldloc, + newloc, xdata); + + return 0; +} + + +int32_t quota_symlink_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, inode_t *inode, + int32_t op_ret, int32_t op_errno, inode_t *inode, struct iatt *buf, struct iatt *preparent, - struct iatt *postparent) + struct iatt *postparent, dict_t *xdata) { - struct quota_priv *priv = NULL; + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + quota_dentry_t *dentry = NULL; + + if (op_ret < 0) { + goto out; + } - priv = this->private; + local = frame->local; - if ((op_ret >= 0) && priv->disk_usage_limit) { - gf_quota_usage_add (this, buf->ia_blocks * 512); - } + quota_inode_ctx_get (local->loc.inode, this, &ctx, 1); + if (ctx == NULL) { + gf_log (this->name, GF_LOG_DEBUG, "quota context is NULL on " + "inode (%s). " + "If quota is not enabled recently and crawler has " + "finished crawling, its an error", + uuid_utoa (local->loc.inode->gfid)); - STACK_UNWIND_STRICT (symlink, frame, op_ret, op_errno, inode, buf, - preparent, postparent); - return 0; + goto out; + } + + LOCK (&ctx->lock); + { + ctx->buf = *buf; + + dentry = __quota_dentry_new (ctx, (char *)local->loc.name, + local->loc.parent->gfid); + if (dentry == NULL) { + gf_log (this->name, GF_LOG_WARNING, + "cannot create a new dentry (name:%s) for " + "inode(gfid:%s)", local->loc.name, + uuid_utoa (local->loc.inode->gfid)); + op_ret = -1; + op_errno = ENOMEM; + } + } + UNLOCK (&ctx->lock); + +out: + QUOTA_STACK_UNWIND (symlink, frame, op_ret, op_errno, inode, buf, + preparent, postparent, xdata); + + return 0; } int -quota_symlink (call_frame_t *frame, xlator_t *this, - const char *linkpath, loc_t *loc) +quota_symlink_helper (call_frame_t *frame, xlator_t *this, const char *linkpath, + loc_t *loc, mode_t umask, dict_t *xdata) { - struct quota_priv *priv = NULL; + quota_local_t *local = NULL; + int32_t op_errno = EINVAL; + quota_priv_t *priv = NULL; + + local = frame->local; + if (local == NULL) { + gf_log (this->name, GF_LOG_WARNING, "local is NULL"); + goto unwind; + } - priv = this->private; + priv = this->private; - if (gf_quota_check_free_disk (this) == -1) { - gf_log (this->name, GF_LOG_ERROR, - "min-free-disk limit (%u) crossed, current available is %u", - priv->min_free_disk_limit, priv->current_free_disk); - STACK_UNWIND_STRICT (symlink, frame, -1, ENOSPC, NULL, NULL, - NULL, NULL); - return 0; - - } - if (priv->current_disk_usage > priv->disk_usage_limit) { - gf_log (this->name, GF_LOG_ERROR, - "Disk usage limit (%"PRIu64") crossed, current usage is %"PRIu64"", - priv->disk_usage_limit, priv->current_disk_usage); - STACK_UNWIND_STRICT (symlink, frame, -1, ENOSPC, NULL, NULL, - NULL, NULL); - return 0; + if (local->op_ret == -1) { + op_errno = local->op_errno; + goto unwind; } - STACK_WIND (frame, quota_symlink_cbk, - FIRST_CHILD(this), - FIRST_CHILD(this)->fops->symlink, - linkpath, loc); - return 0; + STACK_WIND (frame, quota_symlink_cbk, + FIRST_CHILD(this), FIRST_CHILD(this)->fops->symlink, + linkpath, loc, umask, xdata); + return 0; + +unwind: + QUOTA_STACK_UNWIND (symlink, frame, -1, op_errno, NULL, NULL, + NULL, NULL, NULL); + return 0; } int -quota_create_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, - fd_t *fd, inode_t *inode, struct iatt *buf, - struct iatt *preparent, struct iatt *postparent) +quota_symlink (call_frame_t *frame, xlator_t *this, const char *linkpath, + loc_t *loc, mode_t umask, dict_t *xdata) { - struct quota_priv *priv = this->private; - int ret = 0; + quota_priv_t *priv = NULL; + int32_t ret = -1; + int32_t op_errno = ENOMEM; + quota_local_t *local = NULL; + call_stub_t *stub = NULL; - if ((op_ret >= 0) && priv->disk_usage_limit) { - gf_quota_usage_add (this, buf->ia_blocks * 512); + priv = this->private; - ret = fd_ctx_set (fd, this, 1); - } + WIND_IF_QUOTAOFF (priv->is_quota_on, off); + + local = quota_local_new (); + if (local == NULL) { + goto err; + } + + frame->local = local; + + ret = loc_copy (&local->loc, loc); + if (ret < 0) { + gf_log (this->name, GF_LOG_WARNING, "loc_copy failed"); + goto err; + } - STACK_UNWIND_STRICT (create, frame, op_ret, op_errno, fd, inode, buf, - preparent, postparent); - return 0; + stub = fop_symlink_stub (frame, quota_symlink_helper, linkpath, loc, + umask, xdata); + if (stub == NULL) { + goto err; + } + + LOCK (&local->lock); + { + local->stub = stub; + local->delta = strlen (linkpath); + local->link_count = 1; + } + UNLOCK (&local->lock); + + quota_check_limit (frame, loc->parent, this, NULL, NULL); + return 0; + +err: + QUOTA_STACK_UNWIND (symlink, frame, -1, op_errno, NULL, NULL, NULL, + NULL, NULL); + + return 0; + +off: + STACK_WIND_TAIL (frame, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->symlink, + linkpath, loc, umask, xdata); + return 0; } -int -quota_create (call_frame_t *frame, xlator_t *this, - loc_t *loc, int32_t flags, mode_t mode, fd_t *fd) +int32_t +quota_truncate_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *prebuf, + struct iatt *postbuf, dict_t *xdata) { - struct quota_priv *priv = NULL; + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; - priv = this->private; + if (op_ret < 0) { + goto out; + } - if (gf_quota_check_free_disk (this) == -1) { - gf_log (this->name, GF_LOG_ERROR, - "min-free-disk limit (%u) crossed, current available is %u", - priv->min_free_disk_limit, priv->current_free_disk); - STACK_UNWIND_STRICT (create, frame, -1, ENOSPC, NULL, NULL, NULL, - NULL, NULL); - return 0; - - } - if (priv->current_disk_usage > priv->disk_usage_limit) { - gf_log (this->name, GF_LOG_ERROR, - "Disk usage limit (%"PRIu64") crossed, current usage is %"PRIu64"", - priv->disk_usage_limit, priv->current_disk_usage); - STACK_UNWIND_STRICT (create, frame, -1, ENOSPC, NULL, NULL, NULL, - NULL, NULL); - return 0; + local = frame->local; + if (local == NULL) { + gf_log (this->name, GF_LOG_WARNING, "local is NULL"); + goto out; + } + + quota_inode_ctx_get (local->loc.inode, this, &ctx, 0); + if (ctx == NULL) { + gf_log (this->name, GF_LOG_DEBUG, "quota context is NULL on " + "inode (%s). " + "If quota is not enabled recently and crawler has " + "finished crawling, its an error", + uuid_utoa (local->loc.inode->gfid)); + goto out; } - STACK_WIND (frame, quota_create_cbk, - FIRST_CHILD(this), - FIRST_CHILD(this)->fops->create, - loc, flags, mode, fd); - return 0; + LOCK (&ctx->lock); + { + ctx->buf = *postbuf; + } + UNLOCK (&ctx->lock); + +out: + QUOTA_STACK_UNWIND (truncate, frame, op_ret, op_errno, prebuf, + postbuf, xdata); + return 0; } -int -quota_open_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, fd_t *fd) +int32_t +quota_truncate (call_frame_t *frame, xlator_t *this, loc_t *loc, off_t offset, + dict_t *xdata) { - int ret = 0; + quota_priv_t *priv = NULL; + int32_t ret = -1; + quota_local_t *local = NULL; - if (op_ret >= 0) - ret = fd_ctx_set (fd, this, 1); + priv = this->private; - STACK_UNWIND_STRICT (open, frame, op_ret, op_errno, fd); - return 0; + WIND_IF_QUOTAOFF (priv->is_quota_on, off); + + local = quota_local_new (); + if (local == NULL) { + goto err; + } + + frame->local = local; + + ret = loc_copy (&local->loc, loc); + if (ret < 0) { + gf_log (this->name, GF_LOG_WARNING, "loc_copy failed"); + goto err; + } + + STACK_WIND (frame, quota_truncate_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->truncate, loc, offset, xdata); + + return 0; + +err: + QUOTA_STACK_UNWIND (truncate, frame, -1, ENOMEM, NULL, NULL, NULL); + + return 0; +off: + STACK_WIND_TAIL (frame, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->truncate, loc, offset, xdata); + return 0; } -int -quota_open (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags, - fd_t *fd, int32_t wbflags) +int32_t +quota_ftruncate_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *prebuf, + struct iatt *postbuf, dict_t *xdata) { - STACK_WIND (frame, quota_open_cbk, - FIRST_CHILD(this), - FIRST_CHILD(this)->fops->open, - loc, flags, fd, wbflags); - return 0; + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + + if (op_ret < 0) { + goto out; + } + + local = frame->local; + if (local == NULL) { + gf_log (this->name, GF_LOG_WARNING, "local is NULL"); + goto out; + } + + quota_inode_ctx_get (local->loc.inode, this, &ctx, 0); + if (ctx == NULL) { + gf_log (this->name, GF_LOG_DEBUG, "quota context is NULL on " + "inode (%s). " + "If quota is not enabled recently and crawler has " + "finished crawling, its an error", + uuid_utoa (local->loc.inode->gfid)); + goto out; + } + + LOCK (&ctx->lock); + { + ctx->buf = *postbuf; + } + UNLOCK (&ctx->lock); + +out: + QUOTA_STACK_UNWIND (ftruncate, frame, op_ret, op_errno, prebuf, + postbuf, xdata); + return 0; } -int -quota_writev_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, struct iatt *prebuf, - struct iatt *postbuf) +int32_t +quota_ftruncate (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset, + dict_t *xdata) { - struct quota_priv *priv = NULL; - struct quota_local *local = NULL; + quota_priv_t *priv = NULL; + quota_local_t *local = NULL; + priv = this->private; - priv = this->private; - local = frame->local; + WIND_IF_QUOTAOFF (priv->is_quota_on, off); - if (priv->disk_usage_limit) { - if (op_ret >= 0) { - gf_quota_usage_add (this, (postbuf->ia_blocks - - prebuf->ia_blocks) * 512); - } - fd_unref (local->fd); - iobref_unref (local->iobref); - } + local = quota_local_new (); + if (local == NULL) + goto err; + + frame->local = local; - STACK_UNWIND_STRICT (writev, frame, op_ret, op_errno, prebuf, postbuf); - return 0; + local->loc.inode = inode_ref (fd->inode); + + STACK_WIND (frame, quota_ftruncate_cbk, + FIRST_CHILD(this), FIRST_CHILD(this)->fops->ftruncate, fd, + offset, xdata); + + return 0; +err: + QUOTA_STACK_UNWIND (ftruncate, frame, -1, ENOMEM, NULL, NULL, NULL); + + return 0; + +off: + STACK_WIND_TAIL (frame, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->ftruncate, fd, + offset, xdata); + return 0; } -int -quota_writev_fstat_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, struct iatt *buf) -{ - struct quota_local *local = NULL; - struct quota_priv *priv = NULL; - int iovlen = 0; - - - local = frame->local; - priv = this->private; - - if (op_ret >= 0) { - if (priv->current_disk_usage > priv->disk_usage_limit) { - iovlen = iov_length (local->vector, local->count); - - if (iovlen > (buf->ia_blksize - (buf->ia_size % buf->ia_blksize))) { - fd_unref (local->fd); - iobref_unref (local->iobref); - STACK_UNWIND_STRICT (writev, frame, -1, ENOSPC, - NULL, NULL); - return 0; - } - } - local->stbuf = *buf; - } - - STACK_WIND (frame, quota_writev_cbk, - FIRST_CHILD(this), - FIRST_CHILD(this)->fops->writev, - local->fd, local->vector, local->count, local->offset, - local->iobref); +int32_t +quota_send_dir_limit_to_cli (call_frame_t *frame, xlator_t *this, + inode_t *inode, const char *name) +{ + int32_t ret = 0; + char dir_limit [1024] = {0, }; + dict_t *dict = NULL; + quota_inode_ctx_t *ctx = NULL; + uint64_t value = 0; + quota_priv_t *priv = NULL; + + priv = this->private; + if (!priv->is_quota_on) { + snprintf (dir_limit, 1024, "Quota is disabled please turn on"); + goto dict_set; + } - return 0; + ret = inode_ctx_get (inode, this, &value); + if (ret < 0) + goto out; + + ctx = (quota_inode_ctx_t *)(unsigned long)value; + snprintf (dir_limit, 1024, "%"PRId64",%"PRId64, ctx->size, + ctx->hard_lim); + +dict_set: + dict = dict_new (); + if (dict == NULL) { + ret = -1; + goto out; + } + + ret = dict_set_str (dict, (char *) name, dir_limit); + if (ret < 0) + goto out; + + gf_log (this->name, GF_LOG_DEBUG, "str = %s", dir_limit); + + QUOTA_STACK_UNWIND (getxattr, frame, 0, 0, dict, NULL); + + ret = 0; + +out: + return ret; } -int -quota_writev (call_frame_t *frame, xlator_t *this, fd_t *fd, - struct iovec *vector, int32_t count, off_t off, - struct iobref *iobref) -{ - struct quota_local *local = NULL; - struct quota_priv *priv = NULL; - int i = 0; - - priv = this->private; - - if (gf_quota_check_free_disk (this) == -1) { - gf_log (this->name, GF_LOG_ERROR, - "min-free-disk limit (%u) crossed, current available is %u", - priv->min_free_disk_limit, priv->current_free_disk); - STACK_UNWIND_STRICT (writev, frame, -1, ENOSPC, - NULL, NULL); - return 0; - } +int32_t +quota_fgetxattr (call_frame_t *frame, xlator_t *this, fd_t *fd, + const char *name, dict_t *xdata) +{ + int32_t ret = 0; - if (priv->disk_usage_limit) { - local = GF_CALLOC (1, sizeof (struct quota_local), - gf_quota_mt_quota_local); - local->fd = fd_ref (fd); - local->iobref = iobref_ref (iobref); - for (i = 0; i < count; i++) { - local->vector[i].iov_base = vector[i].iov_base; - local->vector[i].iov_len = vector[i].iov_len; + if (name && strcasecmp (name, "trusted.limit.list") == 0) { + ret = quota_send_dir_limit_to_cli (frame, this, fd->inode, + name); + if (ret == 0) { + return 0; } + } - local->count = count; - local->offset = off; - frame->local = local; + STACK_WIND (frame, default_fgetxattr_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fgetxattr, fd, name, xdata); + return 0; +} - STACK_WIND (frame, quota_writev_fstat_cbk, - FIRST_CHILD(this), - FIRST_CHILD(this)->fops->fstat, fd); - return 0; - } - STACK_WIND (frame, quota_writev_cbk, - FIRST_CHILD(this), - FIRST_CHILD(this)->fops->writev, - fd, vector, count, off, iobref); - return 0; +int32_t +quota_getxattr (call_frame_t *frame, xlator_t *this, loc_t *loc, + const char *name, dict_t *xdata) +{ + int32_t ret = 0; + + if ((name != NULL) && strcasecmp (name, "trusted.limit.list") == 0) { + ret = quota_send_dir_limit_to_cli (frame, this, loc->inode, + name); + if (ret == 0) + return 0; + } + + STACK_WIND (frame, default_getxattr_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->getxattr, loc, name, xdata); + return 0; +} + + +int32_t +quota_stat_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *buf, + dict_t *xdata) +{ + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + + if (op_ret < 0) { + goto out; + } + + local = frame->local; + if (local == NULL) { + gf_log (this->name, GF_LOG_WARNING, "local is NULL"); + goto out; + } + + quota_inode_ctx_get (local->loc.inode, this, &ctx, 0); + if (ctx == NULL) { + if (!IA_ISDIR (buf->ia_type)) { + gf_log (this->name, GF_LOG_DEBUG, + "quota context is NULL on " + "inode (%s). " + "If quota is not enabled recently and crawler " + "has finished crawling, its an error", + uuid_utoa (local->loc.inode->gfid)); + } + + goto out; + } + + LOCK (&ctx->lock); + { + if (buf) + ctx->buf = *buf; + } + UNLOCK (&ctx->lock); + +out: + QUOTA_STACK_UNWIND (stat, frame, op_ret, op_errno, buf, xdata); + return 0; +} + + +int32_t +quota_stat (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata) +{ + quota_priv_t *priv = NULL; + quota_local_t *local = NULL; + int32_t ret = -1; + + priv = this->private; + + WIND_IF_QUOTAOFF (priv->is_quota_on, off); + + local = quota_local_new (); + if (local == NULL) { + goto unwind; + } + + frame->local = local; + ret = loc_copy (&local->loc, loc); + if (ret < 0) { + gf_log (this->name, GF_LOG_WARNING, "loc_copy failed"); + goto unwind; + } + + STACK_WIND (frame, quota_stat_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->stat, loc, + xdata); + return 0; + +unwind: + QUOTA_STACK_UNWIND (stat, frame, -1, ENOMEM, NULL, NULL); + return 0; + +off: + STACK_WIND_TAIL (frame, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->stat, loc, + xdata); + return 0; +} + + +int32_t +quota_fstat_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *buf, + dict_t *xdata) +{ + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + + if (op_ret < 0) { + goto out; + } + + local = frame->local; + if (local == NULL) { + gf_log (this->name, GF_LOG_WARNING, "local is NULL"); + goto out; + } + + quota_inode_ctx_get (local->loc.inode, this, &ctx, 0); + if (ctx == NULL) { + if (!IA_ISDIR (buf->ia_type)) { + gf_log (this->name, GF_LOG_DEBUG, + "quota context is NULL on " + "inode (%s). " + "If quota is not enabled recently and crawler " + "has finished crawling, its an error", + uuid_utoa (local->loc.inode->gfid)); + } + + goto out; + } + + LOCK (&ctx->lock); + { + if (buf) + ctx->buf = *buf; + } + UNLOCK (&ctx->lock); + +out: + QUOTA_STACK_UNWIND (fstat, frame, op_ret, op_errno, buf, xdata); + return 0; +} + + +int32_t +quota_fstat (call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *xdata) +{ + quota_priv_t *priv = NULL; + quota_local_t *local = NULL; + + priv = this->private; + + WIND_IF_QUOTAOFF (priv->is_quota_on, off); + + local = quota_local_new (); + if (local == NULL) { + goto unwind; + } + + frame->local = local; + + local->loc.inode = inode_ref (fd->inode); + + STACK_WIND (frame, quota_fstat_cbk, + FIRST_CHILD(this), FIRST_CHILD(this)->fops->fstat, fd, + xdata); + return 0; + +unwind: + QUOTA_STACK_UNWIND (fstat, frame, -1, ENOMEM, NULL, NULL); + return 0; + +off: + STACK_WIND_TAIL (frame, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fstat, fd, + xdata); + return 0; +} + + +int32_t +quota_readlink_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, const char *path, + struct iatt *buf, dict_t *xdata) +{ + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + + if (op_ret < 0) { + goto out; + } + + local = frame->local; + if (local == NULL) { + gf_log (this->name, GF_LOG_WARNING, "local is NULL"); + goto out; + } + + quota_inode_ctx_get (local->loc.inode, this, &ctx, 0); + if (ctx == NULL) { + gf_log (this->name, GF_LOG_DEBUG, "quota context is NULL on " + "inode (%s). " + "If quota is not enabled recently and crawler has " + "finished crawling, its an error", + uuid_utoa (local->loc.inode->gfid)); + goto out; + } + + LOCK (&ctx->lock); + { + ctx->buf = *buf; + } + UNLOCK (&ctx->lock); + +out: + QUOTA_STACK_UNWIND (readlink, frame, op_ret, op_errno, path, buf, + xdata); + return 0; +} + + +int32_t +quota_readlink (call_frame_t *frame, xlator_t *this, loc_t *loc, size_t size, + dict_t *xdata) +{ + quota_priv_t *priv = NULL; + quota_local_t *local = NULL; + int32_t ret = -1; + + priv = this->private; + + WIND_IF_QUOTAOFF (priv->is_quota_on, off); + + local = quota_local_new (); + if (local == NULL) { + goto unwind; + } + + frame->local = local; + + ret = loc_copy (&local->loc, loc); + if (ret < 0) { + gf_log (this->name, GF_LOG_WARNING, "loc_copy failed"); + goto unwind; + } + + STACK_WIND (frame, quota_readlink_cbk, + FIRST_CHILD(this), FIRST_CHILD(this)->fops->readlink, loc, + size, xdata); + return 0; + +unwind: + QUOTA_STACK_UNWIND (readlink, frame, -1, ENOMEM, NULL, NULL, NULL); + return 0; + +off: + STACK_WIND_TAIL (frame, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->readlink, loc, + size, xdata); + return 0; +} + + +int32_t +quota_readv_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iovec *vector, + int32_t count, struct iatt *buf, struct iobref *iobref, + dict_t *xdata) +{ + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + + if (op_ret < 0) { + goto out; + } + + local = frame->local; + if (local == NULL) { + gf_log (this->name, GF_LOG_WARNING, "local is NULL"); + goto out; + } + + quota_inode_ctx_get (local->loc.inode, this, &ctx, 0); + if (ctx == NULL) { + gf_log (this->name, GF_LOG_DEBUG, "quota context is NULL on " + "inode (%s). " + "If quota is not enabled recently and crawler has " + "finished crawling, its an error", + uuid_utoa (local->loc.inode->gfid)); + goto out; + } + + LOCK (&ctx->lock); + { + ctx->buf = *buf; + } + UNLOCK (&ctx->lock); + +out: + QUOTA_STACK_UNWIND (readv, frame, op_ret, op_errno, vector, count, + buf, iobref, xdata); + return 0; +} + + +int32_t +quota_readv (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size, + off_t offset, uint32_t flags, dict_t *xdata) +{ + quota_priv_t *priv = NULL; + quota_local_t *local = NULL; + + priv = this->private; + + WIND_IF_QUOTAOFF (priv->is_quota_on, off); + + local = quota_local_new (); + if (local == NULL) { + goto unwind; + } + + frame->local = local; + + local->loc.inode = inode_ref (fd->inode); + + STACK_WIND (frame, quota_readv_cbk, + FIRST_CHILD(this), FIRST_CHILD(this)->fops->readv, fd, + size, offset, flags, xdata); + return 0; + +unwind: + QUOTA_STACK_UNWIND (readv, frame, -1, ENOMEM, NULL, -1, NULL, NULL, + NULL); + return 0; + +off: + STACK_WIND_TAIL (frame, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->readv, fd, + size, offset, flags, xdata); + return 0; +} + + +int32_t +quota_fsync_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *prebuf, + struct iatt *postbuf, dict_t *xdata) +{ + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + + if (op_ret < 0) { + goto out; + } + + local = frame->local; + if (local == NULL) { + gf_log (this->name, GF_LOG_WARNING, "local is NULL"); + goto out; + } + + quota_inode_ctx_get (local->loc.inode, this, &ctx, 0); + if (ctx == NULL) { + gf_log (this->name, GF_LOG_DEBUG, "quota context is NULL on " + "inode (%s). " + "If quota is not enabled recently and crawler has " + "finished crawling, its an error", + uuid_utoa (local->loc.inode->gfid)); + goto out; + } + + LOCK (&ctx->lock); + { + ctx->buf = *postbuf; + } + UNLOCK (&ctx->lock); + +out: + QUOTA_STACK_UNWIND (fsync, frame, op_ret, op_errno, prebuf, postbuf, + xdata); + return 0; +} + + +int32_t +quota_fsync (call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t flags, + dict_t *xdata) +{ + quota_priv_t *priv = NULL; + quota_local_t *local = NULL; + + priv = this->private; + + WIND_IF_QUOTAOFF (priv->is_quota_on, off); + + local = quota_local_new (); + if (local == NULL) { + goto unwind; + } + + local->loc.inode = inode_ref (fd->inode); + + frame->local = local; + + STACK_WIND (frame, quota_fsync_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fsync, fd, + flags, xdata); + return 0; + +unwind: + QUOTA_STACK_UNWIND (fsync, frame, -1, ENOMEM, NULL, NULL, NULL); + return 0; + +off: + STACK_WIND_TAIL (frame, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fsync, fd, + flags, xdata); + return 0; +} + + +int32_t +quota_setattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *statpre, + struct iatt *statpost, dict_t *xdata) +{ + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + + if (op_ret < 0) { + goto out; + } + + local = frame->local; + if (local == NULL) { + gf_log (this->name, GF_LOG_WARNING, "local is NULL"); + goto out; + } + + quota_inode_ctx_get (local->loc.inode, this, &ctx, 0); + if (ctx == NULL) { + if (!IA_ISDIR (statpost->ia_type)) { + gf_log (this->name, GF_LOG_DEBUG, "quota context is " + "NULL on inode (%s). " + "If quota is not enabled recently and crawler " + "has finished crawling, its an error", + uuid_utoa (local->loc.inode->gfid)); + } + + goto out; + } + + LOCK (&ctx->lock); + { + if (statpost) + ctx->buf = *statpost; + } + UNLOCK (&ctx->lock); + +out: + QUOTA_STACK_UNWIND (setattr, frame, op_ret, op_errno, statpre, + statpost, xdata); + return 0; +} + + +int32_t +quota_setattr (call_frame_t *frame, xlator_t *this, loc_t *loc, + struct iatt *stbuf, int32_t valid, dict_t *xdata) +{ + quota_priv_t *priv = NULL; + quota_local_t *local = NULL; + int32_t ret = -1; + + priv = this->private; + + WIND_IF_QUOTAOFF (priv->is_quota_on, off); + + local = quota_local_new (); + if (local == NULL) { + goto unwind; + } + + frame->local = local; + + ret = loc_copy (&local->loc, loc); + if (ret < 0) { + gf_log (this->name, GF_LOG_WARNING, "loc_copy failed"); + goto unwind; + } + + STACK_WIND (frame, quota_setattr_cbk, FIRST_CHILD (this), + FIRST_CHILD (this)->fops->setattr, loc, + stbuf, valid, xdata); + return 0; + +unwind: + QUOTA_STACK_UNWIND (setattr, frame, -1, ENOMEM, NULL, NULL, NULL); + return 0; + +off: + STACK_WIND_TAIL (frame, FIRST_CHILD (this), + FIRST_CHILD (this)->fops->setattr, loc, + stbuf, valid, xdata); + return 0; +} + + +int32_t +quota_fsetattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *statpre, + struct iatt *statpost, dict_t *xdata) +{ + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + + if (op_ret < 0) { + goto out; + } + + local = frame->local; + if (local == NULL) { + gf_log (this->name, GF_LOG_WARNING, "local is NULL"); + goto out; + } + + quota_inode_ctx_get (local->loc.inode, this, &ctx, 0); + if (ctx == NULL) { + if (!IA_ISDIR (statpost->ia_type)) { + gf_log (this->name, GF_LOG_DEBUG, "quota context is " + "NULL on inode (%s). " + "If quota is not enabled recently and crawler " + "has finished crawling, its an error", + uuid_utoa (local->loc.inode->gfid)); + } + + goto out; + } + + LOCK (&ctx->lock); + { + ctx->buf = *statpost; + } + UNLOCK (&ctx->lock); + +out: + QUOTA_STACK_UNWIND (fsetattr, frame, op_ret, op_errno, statpre, + statpost, xdata); + return 0; +} + + +int32_t +quota_fsetattr (call_frame_t *frame, xlator_t *this, fd_t *fd, + struct iatt *stbuf, int32_t valid, dict_t *xdata) +{ + quota_priv_t *priv = NULL; + quota_local_t *local = NULL; + + priv = this->private; + + WIND_IF_QUOTAOFF (priv->is_quota_on, off); + + local = quota_local_new (); + if (local == NULL) { + goto unwind; + } + + frame->local = local; + + local->loc.inode = inode_ref (fd->inode); + + STACK_WIND (frame, quota_fsetattr_cbk, + FIRST_CHILD (this), FIRST_CHILD (this)->fops->fsetattr, fd, + stbuf, valid, xdata); + return 0; + +unwind: + QUOTA_STACK_UNWIND (fsetattr, frame, -1, ENOMEM, NULL, NULL, NULL); + return 0; + +off: + STACK_WIND_TAIL (frame, FIRST_CHILD (this), + FIRST_CHILD (this)->fops->fsetattr, fd, + stbuf, valid, xdata); + return 0; +} + + +int32_t +quota_mknod_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, inode_t *inode, + struct iatt *buf, struct iatt *preparent, + struct iatt *postparent, dict_t *xdata) +{ + int32_t ret = -1; + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + quota_dentry_t *dentry = NULL; + + local = frame->local; + if (op_ret < 0) { + goto unwind; + } + + ret = quota_inode_ctx_get (inode, this, &ctx, 1); + if ((ret == -1) || (ctx == NULL)) { + gf_log (this->name, GF_LOG_WARNING, "cannot create quota " + "context in inode (gfid:%s)", uuid_utoa (inode->gfid)); + op_ret = -1; + op_errno = ENOMEM; + goto unwind; + } + + LOCK (&ctx->lock); + { + ctx->buf = *buf; + + dentry = __quota_dentry_new (ctx, (char *)local->loc.name, + local->loc.parent->gfid); + if (dentry == NULL) { + gf_log (this->name, GF_LOG_WARNING, + "cannot create a new dentry (name:%s) for " + "inode(gfid:%s)", local->loc.name, + uuid_utoa (local->loc.inode->gfid)); + op_ret = -1; + op_errno = ENOMEM; + goto unlock; + } + } +unlock: + UNLOCK (&ctx->lock); + +unwind: + QUOTA_STACK_UNWIND (mknod, frame, op_ret, op_errno, inode, + buf, preparent, postparent, xdata); + return 0; } int -quota_removexattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno) +quota_mknod_helper (call_frame_t *frame, xlator_t *this, loc_t *loc, + mode_t mode, dev_t rdev, mode_t umask, dict_t *xdata) { - if (op_ret == -1) { - gf_log (this->name, GF_LOG_CRITICAL, - "failed to remove the disk-usage value: %s", - strerror (op_errno)); - } - - STACK_DESTROY (frame->root); - return 0; + quota_local_t *local = NULL; + int32_t op_errno = EINVAL; + quota_priv_t *priv = NULL; + + local = frame->local; + if (local == NULL) { + gf_log (this->name, GF_LOG_WARNING, "local is NULL"); + goto unwind; + } + + priv = this->private; + + if (local->op_ret == -1) { + op_errno = local->op_errno; + goto unwind; + } + + STACK_WIND (frame, quota_mknod_cbk, + FIRST_CHILD(this), FIRST_CHILD(this)->fops->mknod, loc, + mode, rdev, umask, xdata); + + return 0; + +unwind: + QUOTA_STACK_UNWIND (mknod, frame, -1, op_errno, NULL, NULL, + NULL, NULL, NULL); + return 0; } int -quota_setxattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno) +quota_mknod (call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode, + dev_t rdev, mode_t umask, dict_t *xdata) { - dict_t *dict = NULL; + quota_priv_t *priv = NULL; + int32_t ret = -1; + quota_local_t *local = NULL; + call_stub_t *stub = NULL; - if (op_ret == -1) { - gf_log (this->name, GF_LOG_CRITICAL, - "failed to set the disk-usage value: %s", - strerror (op_errno)); - } + priv = this->private; - if (cookie) { - dict = (dict_t *) cookie; - dict_unref (dict); + WIND_IF_QUOTAOFF (priv->is_quota_on, off); + + local = quota_local_new (); + if (local == NULL) { + goto err; + } + + frame->local = local; + + ret = loc_copy (&local->loc, loc); + if (ret) { + gf_log (this->name, GF_LOG_WARNING, "loc_copy failed"); + goto err; + } + + stub = fop_mknod_stub (frame, quota_mknod_helper, loc, mode, rdev, + umask, xdata); + if (stub == NULL) { + goto err; + } + + LOCK (&local->lock); + { + local->link_count = 1; + local->stub = stub; + local->delta = 0; + } + UNLOCK (&local->lock); + + quota_check_limit (frame, loc->parent, this, NULL, NULL); + return 0; + +err: + QUOTA_STACK_UNWIND (mknod, frame, -1, ENOMEM, NULL, NULL, NULL, NULL, + NULL); + return 0; + +off: + STACK_WIND_TAIL (frame, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->mknod, loc, + mode, rdev, umask, xdata); + return 0; +} + +int +quota_setxattr_cbk (call_frame_t *frame, void *cookie, + xlator_t *this, int op_ret, int op_errno, dict_t *xdata) +{ + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + int ret = 0; + + local = frame->local; + if (!local) + goto out; + + ret = quota_inode_ctx_get (local->loc.inode, this, &ctx, 1); + if ((ret < 0) || (ctx == NULL)) { + op_errno = ENOMEM; + goto out; + } + + LOCK (&ctx->lock); + { + ctx->hard_lim = local->limit.hard_lim; + ctx->soft_lim = local->limit.soft_lim_percent; } + UNLOCK (&ctx->lock); - STACK_DESTROY (frame->root); - return 0; +out: + QUOTA_STACK_UNWIND (setxattr, frame, op_ret, op_errno, xdata); + return 0; } +int +quota_setxattr (call_frame_t *frame, xlator_t *this, + loc_t *loc, dict_t *dict, int flags, dict_t *xdata) +{ + quota_priv_t *priv = NULL; + int op_errno = EINVAL; + int op_ret = -1; + int64_t hard_lim = -1, soft_lim = -1; + quota_local_t *local = NULL; + + priv = this->private; + + WIND_IF_QUOTAOFF (priv->is_quota_on, off); + + VALIDATE_OR_GOTO (frame, err); + VALIDATE_OR_GOTO (this, err); + VALIDATE_OR_GOTO (loc, err); + + if (frame->root->pid >= 0) { + GF_IF_INTERNAL_XATTR_GOTO ("trusted.glusterfs.quota*", dict, + op_errno, err); + GF_IF_INTERNAL_XATTR_GOTO ("trusted.pgfid*", dict, op_errno, + err); + } + + quota_get_limits (this, dict, &hard_lim, &soft_lim); + + if (hard_lim > 0) { + local = quota_local_new (); + if (local == NULL) { + op_errno = ENOMEM; + goto err; + } + + frame->local = local; + loc_copy (&local->loc, loc); + + local->limit.hard_lim = hard_lim; + local->limit.soft_lim_percent = soft_lim; + } + + STACK_WIND (frame, quota_setxattr_cbk, + FIRST_CHILD(this), FIRST_CHILD(this)->fops->setxattr, loc, + dict, flags, xdata); + return 0; +err: + QUOTA_STACK_UNWIND (setxattr, frame, op_ret, op_errno, NULL); + return 0; + +off: + STACK_WIND_TAIL (frame, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->setxattr, loc, + dict, flags, xdata); + return 0; +} int -quota_statfs_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, struct statvfs *statvfs) +quota_fsetxattr_cbk (call_frame_t *frame, void *cookie, + xlator_t *this, int op_ret, int op_errno, dict_t *xdata) { - struct quota_priv *priv = NULL; - uint64_t f_blocks = 0; - int64_t f_bfree = 0; - uint64_t f_bused = 0; + quota_inode_ctx_t *ctx = NULL; + quota_local_t *local = NULL; + local = frame->local; + if (!local) + goto out; - priv = this->private; + op_ret = quota_inode_ctx_get (local->loc.inode, this, &ctx, 1); + if ((op_ret < 0) || (ctx == NULL)) { + op_errno = ENOMEM; + goto out; + } - if (op_ret != 0) - goto unwind; + LOCK (&ctx->lock); + { + ctx->hard_lim = local->limit.hard_lim; + ctx->soft_lim = local->limit.soft_lim_percent; + } + UNLOCK (&ctx->lock); + +out: + QUOTA_STACK_UNWIND (fsetxattr, frame, op_ret, op_errno, xdata); + return 0; +} + +int +quota_fsetxattr (call_frame_t *frame, xlator_t *this, fd_t *fd, + dict_t *dict, int flags, dict_t *xdata) +{ + quota_priv_t *priv = NULL; + int32_t op_ret = -1; + int32_t op_errno = EINVAL; + quota_local_t *local = NULL; + int64_t hard_lim = -1, soft_lim = -1; - f_blocks = priv->disk_usage_limit / statvfs->f_frsize; - f_bused = priv->current_disk_usage / statvfs->f_frsize; + priv = this->private; - if (f_blocks && (f_blocks < statvfs->f_blocks)) - statvfs->f_blocks = f_blocks; + WIND_IF_QUOTAOFF (priv->is_quota_on, off); - f_bfree = (statvfs->f_blocks - f_bused); + VALIDATE_OR_GOTO (frame, err); + VALIDATE_OR_GOTO (this, err); + VALIDATE_OR_GOTO (fd, err); - if (f_bfree >= 0) - statvfs->f_bfree = statvfs->f_bavail = f_bfree; - else - statvfs->f_bfree = statvfs->f_bavail = 0; + if (0 <= frame->root->pid) { + GF_IF_INTERNAL_XATTR_GOTO ("trusted.glusterfs.quota*", + dict, op_errno, err); + GF_IF_INTERNAL_XATTR_GOTO ("trusted.pgfid*", dict, + op_errno, err); + } -unwind: - STACK_UNWIND_STRICT (statfs, frame, op_ret, op_errno, statvfs); - return 0; + quota_get_limits (this, dict, &hard_lim, &soft_lim); + + if (hard_lim > 0) { + local = quota_local_new (); + if (local == NULL) { + op_errno = ENOMEM; + goto err; + } + frame->local = local; + local->loc.inode = inode_ref (fd->inode); + + local->limit.hard_lim = hard_lim; + local->limit.soft_lim_percent = soft_lim; + } + + STACK_WIND (frame, quota_fsetxattr_cbk, + FIRST_CHILD(this), FIRST_CHILD(this)->fops->fsetxattr, fd, + dict, flags, xdata); + return 0; +err: + QUOTA_STACK_UNWIND (fsetxattr, frame, op_ret, op_errno, NULL); + return 0; + +off: + STACK_WIND_TAIL (frame, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fsetxattr, fd, + dict, flags, xdata); + return 0; } int -quota_statfs (call_frame_t *frame, xlator_t *this, loc_t *loc) +quota_removexattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, dict_t *xdata) +{ + QUOTA_STACK_UNWIND (removexattr, frame, op_ret, op_errno, xdata); + return 0; +} + +int +quota_removexattr (call_frame_t *frame, xlator_t *this, + loc_t *loc, const char *name, dict_t *xdata) { - STACK_WIND (frame, quota_statfs_cbk, - FIRST_CHILD (this), FIRST_CHILD (this)->fops->statfs, loc); + quota_priv_t *priv = NULL; + int32_t op_errno = EINVAL; + + priv = this->private; + + WIND_IF_QUOTAOFF (priv->is_quota_on, off); + + VALIDATE_OR_GOTO (this, err); + + /* all quota xattrs can be cleaned up by doing setxattr on special key. + * Hence its ok that we don't allow removexattr on quota keys here. + */ + if (frame->root->pid >= 0) { + GF_IF_NATIVE_XATTR_GOTO ("trusted.glusterfs.quota*", + name, op_errno, err); + GF_IF_NATIVE_XATTR_GOTO ("trusted.pgfid*", name, + op_errno, err); + } + + VALIDATE_OR_GOTO (frame, err); + VALIDATE_OR_GOTO (loc, err); + + STACK_WIND (frame, quota_removexattr_cbk, + FIRST_CHILD(this), FIRST_CHILD(this)->fops->removexattr, + loc, name, xdata); + return 0; + +err: + QUOTA_STACK_UNWIND (removexattr, frame, -1, op_errno, NULL); + return 0; - return 0; +off: + STACK_WIND_TAIL (frame, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->removexattr, + loc, name, xdata); + return 0; } int -quota_getxattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, dict_t *value) +quota_fremovexattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, dict_t *xdata) { - data_t *data = NULL; - struct quota_priv *priv = this->private; - - if (op_ret >= 0) { - data = dict_get (value, "trusted.glusterfs-quota-du"); - if (data) { - LOCK (&priv->lock); - { - priv->current_disk_usage = data_to_uint64 (data); - } - UNLOCK (&priv->lock); + QUOTA_STACK_UNWIND (fremovexattr, frame, op_ret, op_errno, xdata); + return 0; +} + +int +quota_fremovexattr (call_frame_t *frame, xlator_t *this, + fd_t *fd, const char *name, dict_t *xdata) +{ + quota_priv_t *priv = NULL; + int32_t op_ret = -1; + int32_t op_errno = EINVAL; + + priv = this->private; - return 0; - } - } + WIND_IF_QUOTAOFF (priv->is_quota_on, off); - STACK_DESTROY (frame->root); + VALIDATE_OR_GOTO (frame, err); + VALIDATE_OR_GOTO (this, err); + VALIDATE_OR_GOTO (fd, err); - return 0; + if (frame->root->pid >= 0) { + GF_IF_NATIVE_XATTR_GOTO ("trusted.glusterfs.quota*", + name, op_errno, err); + GF_IF_NATIVE_XATTR_GOTO ("trusted.pgfid*", name, + op_errno, err); + } + STACK_WIND (frame, quota_fremovexattr_cbk, + FIRST_CHILD(this), FIRST_CHILD(this)->fops->fremovexattr, + fd, name, xdata); + return 0; +err: + QUOTA_STACK_UNWIND (fremovexattr, frame, op_ret, op_errno, NULL); + return 0; + +off: + STACK_WIND_TAIL (frame, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fremovexattr, + fd, name, xdata); + return 0; } -void -gf_quota_get_disk_usage (xlator_t *this) +int32_t +quota_statfs_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct statvfs *buf, + dict_t *xdata) { - call_frame_t *frame = NULL; - call_pool_t *pool = NULL; + inode_t *inode = NULL; + uint64_t value = 0; + int64_t usage = -1; + int64_t avail = -1; + int64_t blocks = 0; + quota_inode_ctx_t *ctx = NULL; + int ret = 0; + gf_boolean_t dict_created = _gf_false; + + inode = cookie; + + /* This fop will fail mostly in case of client disconnect's, + * which is already logged. Hence, not logging here */ + if (op_ret == -1) + goto unwind; + /* + * We should never get here unless quota_statfs (below) sent us a + * cookie, and it would only do so if the value was non-NULL. This + * check is therefore just routine defensive coding. + */ + if (!inode) { + gf_log(this->name,GF_LOG_WARNING, + "null inode, cannot adjust for quota"); + goto unwind; + } + + inode_ctx_get (inode, this, &value); + if (!value) { + goto unwind; + } + + /* if limit is set on this inode, report statfs based on this inode + * else report based on root. + */ + ctx = (quota_inode_ctx_t *)(unsigned long)value; + if (ctx->hard_lim <= 0) { + inode_ctx_get (inode->table->root, this, &value); + ctx = (quota_inode_ctx_t *)(unsigned long) value; + if (!ctx || ctx->hard_lim < 0) + goto unwind; + } + + { /* statfs is adjusted in this code block */ + usage = (ctx->size) / buf->f_bsize; + + blocks = ctx->hard_lim / buf->f_bsize; + buf->f_blocks = blocks; + + avail = buf->f_blocks - usage; + avail = max (avail, 0); + + buf->f_bfree = avail; + /* + * We have to assume that the total assigned quota + * won't cause us to dip into the reserved space, + * because dealing with the overcommitted cases is + * just too hairy (especially when different bricks + * might be using different reserved percentages and + * such). + */ + buf->f_bavail = buf->f_bfree; + } - struct quota_priv *priv = NULL; + if (!xdata) { + xdata = dict_new (); + if (!xdata) + goto unwind; + dict_created = _gf_true; + } - pool = this->ctx->pool; - frame = create_frame (this, pool); - priv = this->private; + ret = dict_set_int8 (xdata, "quota-deem-statfs", 1); + if (-1 == ret) + gf_log (this->name, GF_LOG_ERROR, "Dict set failed, " + "deem-statfs option may have no effect"); - STACK_WIND (frame, quota_getxattr_cbk, - this->children->xlator, - this->children->xlator->fops->getxattr, - &(priv->root_loc), - "trusted.glusterfs-quota-du"); - return ; +unwind: + QUOTA_STACK_UNWIND (statfs, frame, op_ret, op_errno, buf, xdata); + + if (dict_created) + dict_unref (xdata); + return 0; } -void -gf_quota_cache_sync (xlator_t *this) +int32_t +quota_statfs_helper (call_frame_t *frame, xlator_t *this, loc_t *loc, + dict_t *xdata) { - struct quota_priv *priv = NULL; - call_frame_t *frame = NULL; - dict_t *dict = get_new_dict (); + quota_local_t *local = NULL; + int op_errno = EINVAL; + + GF_VALIDATE_OR_GOTO ("quota", (local = frame->local), err); + if (-1 == local->op_ret) { + op_errno = local->op_errno; + goto err; + } + STACK_WIND_COOKIE (frame, quota_statfs_cbk, loc->inode, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->statfs, loc, xdata); + return 0; +err: + QUOTA_STACK_UNWIND (statfs, frame, -1, op_errno, NULL, NULL); + return 0; +} - priv = this->private; +int32_t +quota_statfs_validate_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, inode_t *inode, + struct iatt *buf, dict_t *xdata, + struct iatt *postparent) +{ + quota_local_t *local = NULL; + int32_t ret = 0; + quota_inode_ctx_t *ctx = NULL; + int64_t *size = 0; + uint64_t value = 0; + + local = frame->local; + + if (op_ret < 0) + goto resume; + + GF_ASSERT (local); + GF_ASSERT (frame); + GF_VALIDATE_OR_GOTO_WITH_ERROR ("quota", this, resume, op_errno, + EINVAL); + GF_VALIDATE_OR_GOTO_WITH_ERROR (this->name, xdata, resume, op_errno, + EINVAL); + + ret = inode_ctx_get (local->validate_loc.inode, this, &value); + + ctx = (quota_inode_ctx_t *)(unsigned long)value; + if ((ret == -1) || (ctx == NULL)) { + gf_log (this->name, GF_LOG_WARNING, + "quota context is not present in inode (gfid:%s)", + uuid_utoa (local->validate_loc.inode->gfid)); + op_errno = EINVAL; + goto resume; + } - frame = create_frame (this, this->ctx->pool); - dict_set (dict, "trusted.glusterfs-quota-du", - data_from_uint64 (priv->current_disk_usage)); + ret = dict_get_bin (xdata, QUOTA_SIZE_KEY, (void **) &size); + if (ret < 0) { + gf_log (this->name, GF_LOG_WARNING, + "size key not present in dict"); + op_errno = EINVAL; + goto resume; + } - dict_ref (dict); + LOCK (&ctx->lock); + { + ctx->size = ntoh64 (*size); + gettimeofday (&ctx->tv, NULL); + } + UNLOCK (&ctx->lock); - STACK_WIND_COOKIE (frame, quota_setxattr_cbk, - (void *) (dict_t *) dict, - this->children->xlator, - this->children->xlator->fops->setxattr, - &(priv->root_loc), dict, 0); +resume: + quota_link_count_decrement (local); + return 0; } +int32_t +quota_statfs (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata) +{ + quota_local_t *local = NULL; + int op_errno = 0; + call_stub_t *stub = NULL; + quota_priv_t *priv = NULL; + int ret = 0; + + priv = this->private; + + WIND_IF_QUOTAOFF (priv->is_quota_on, off); + + if (priv->consider_statfs && loc->inode) { + local = quota_local_new (); + if (!local) { + op_errno = ENOMEM; + goto err; + } + frame->local = local; + + stub = fop_statfs_stub (frame, quota_statfs_helper, loc, xdata); + if (!stub) { + op_errno = ENOMEM; + goto err; + } + + LOCK (&local->lock); + { + local->inode = inode_ref (loc->inode); + local->link_count = 1; + local->stub = stub; + } + UNLOCK (&local->lock); + + ret = quota_validate (frame, local->inode, this, + quota_statfs_validate_cbk); + if (0 > ret) { + quota_handle_validate_error (local, -1, -ret); + } + + return 0; + } + + /* + * We have to make sure that we never get to quota_statfs_cbk + * with a cookie that points to something other than an inode, + * which is exactly what would happen with STACK_UNWIND using + * that as a callback. Therefore, use default_statfs_cbk in + * this case instead. + * + * Also if the option deem-statfs is not set to "on" don't + * bother calculating quota limit on / in statfs_cbk. + */ + if (priv->consider_statfs) + gf_log (this->name,GF_LOG_WARNING, + "missing inode, cannot adjust for quota"); + +off: + STACK_WIND_TAIL (frame, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->statfs, loc, xdata); + return 0; + +err: + STACK_UNWIND_STRICT (statfs, frame, -1, op_errno, NULL, NULL); + + if (local) + quota_local_cleanup (this, local); + return 0; +} int -quota_release (xlator_t *this, fd_t *fd) +quota_readdirp_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int op_ret, int op_errno, gf_dirent_t *entries, + dict_t *xdata) { - gf_quota_cache_sync (this); + gf_dirent_t *entry = NULL; + quota_local_t *local = NULL; + loc_t loc = {0, }; + + if (op_ret <= 0) + goto unwind; + + local = frame->local; + + list_for_each_entry (entry, &entries->list, list) { + if ((strcmp (entry->d_name, ".") == 0) + || (strcmp (entry->d_name, "..") == 0)) + continue; + + uuid_copy (loc.gfid, entry->d_stat.ia_gfid); + loc.inode = inode_ref (entry->inode); + loc.parent = inode_ref (local->loc.inode); + uuid_copy (loc.pargfid, loc.parent->gfid); + loc.name = entry->d_name; + + quota_fill_inodectx (this, entry->inode, entry->dict, + &loc, &entry->d_stat, &op_errno); - return 0; + loc_wipe (&loc); + } + +unwind: + QUOTA_STACK_UNWIND (readdirp, frame, op_ret, op_errno, entries, xdata); + + return 0; } +int +quota_readdirp (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size, + off_t offset, dict_t *dict) +{ + quota_priv_t *priv = NULL; + int ret = 0; + gf_boolean_t new_dict = _gf_false; + quota_local_t *local = NULL; + + priv = this->private; + + WIND_IF_QUOTAOFF (priv->is_quota_on, off); + + local = quota_local_new (); + + if (local == NULL) { + goto err; + } + + frame->local = local; + + local->loc.inode = inode_ref (fd->inode); + + if (dict == NULL) { + dict = dict_new (); + new_dict = _gf_true; + } + + if (dict) { + ret = dict_set_int8 (dict, QUOTA_LIMIT_KEY, 1); + if (ret < 0) { + gf_log (this->name, GF_LOG_WARNING, + "dict set of key for hard-limit failed"); + goto err; + } + } + + STACK_WIND (frame, quota_readdirp_cbk, + FIRST_CHILD(this), FIRST_CHILD(this)->fops->readdirp, fd, + size, offset, dict); + + if (new_dict) { + dict_unref (dict); + } + + return 0; +err: + STACK_UNWIND_STRICT (readdirp, frame, -1, EINVAL, NULL, NULL); + + if (new_dict) { + dict_unref (dict); + } + + return 0; + +off: + STACK_WIND_TAIL (frame, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->readdirp, fd, + size, offset, dict); + return 0; +} -/* notify */ int32_t -notify (xlator_t *this, - int32_t event, - void *data, - ...) +quota_fallocate_cbk(call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *prebuf, + struct iatt *postbuf, dict_t *xdata) { - default_notify (this, event, data); - return 0; + int32_t ret = 0; + uint64_t ctx_int = 0; + quota_inode_ctx_t *ctx = NULL; + quota_local_t *local = NULL; + + local = frame->local; + + if ((op_ret < 0) || (local == NULL)) { + goto out; + } + + ret = inode_ctx_get (local->loc.inode, this, &ctx_int); + if (ret) { + gf_log (this->name, GF_LOG_WARNING, + "%s: failed to get the context", local->loc.path); + goto out; + } + + ctx = (quota_inode_ctx_t *)(unsigned long) ctx_int; + + if (ctx == NULL) { + gf_log (this->name, GF_LOG_WARNING, + "quota context not set in %s (gfid:%s)", + local->loc.path, uuid_utoa (local->loc.inode->gfid)); + goto out; + } + + LOCK (&ctx->lock); + { + ctx->buf = *postbuf; + } + UNLOCK (&ctx->lock); + +out: + QUOTA_STACK_UNWIND (fallocate, frame, op_ret, op_errno, prebuf, postbuf, + xdata); + + return 0; } + int32_t -quota_lookup_cbk (call_frame_t *frame, - void *cookie, - xlator_t *this, - int32_t op_ret, - int32_t op_errno, - inode_t *inode, - struct iatt *buf, - dict_t *dict, - struct iatt *postparent) -{ - STACK_UNWIND_STRICT ( - lookup, - frame, - op_ret, - op_errno, - inode, - buf, - dict, - postparent); - return 0; +quota_fallocate_helper (call_frame_t *frame, xlator_t *this, fd_t *fd, + int32_t mode, off_t offset, size_t len, dict_t *xdata) +{ + quota_local_t *local = NULL; + int32_t op_errno = EINVAL; + quota_priv_t *priv = NULL; + + local = frame->local; + if (local == NULL) { + gf_log (this->name, GF_LOG_WARNING, "local is NULL"); + goto unwind; + } + + priv = this->private; + + if (local->op_ret == -1) { + op_errno = local->op_errno; + goto unwind; + } + + STACK_WIND (frame, quota_fallocate_cbk, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fallocate, fd, mode, offset, len, + xdata); + return 0; + +unwind: + QUOTA_STACK_UNWIND (fallocate, frame, -1, op_errno, NULL, NULL, NULL); + return 0; } + int32_t -quota_lookup (call_frame_t *frame, - xlator_t *this, - loc_t *loc, - dict_t *xattr_req) -{ - struct quota_priv *priv = NULL; - - priv = this->private; - - if (priv->only_first_time) { - if (strcmp (loc->path, "/") == 0) { - loc_copy(&(priv->root_loc), loc); - priv->only_first_time = 0; - if (priv->disk_usage_limit) - gf_quota_get_disk_usage (this); - } - } +quota_fallocate(call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t mode, + off_t offset, size_t len, dict_t *xdata) +{ + int32_t ret = -1, op_errno = EINVAL; + int32_t parents = 0; + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + quota_priv_t *priv = NULL; + quota_dentry_t *dentry = NULL; + call_stub_t *stub = NULL; + + priv = this->private; + GF_VALIDATE_OR_GOTO (this->name, priv, unwind); + + WIND_IF_QUOTAOFF (priv->is_quota_on, off); + + GF_ASSERT (frame); + GF_VALIDATE_OR_GOTO ("quota", this, unwind); + GF_VALIDATE_OR_GOTO (this->name, fd, unwind); + + local = quota_local_new (); + if (local == NULL) { + goto unwind; + } + + frame->local = local; + local->loc.inode = inode_ref (fd->inode); + + ret = quota_inode_ctx_get (fd->inode, this, &ctx, 0); + if (ctx == NULL) { + gf_log (this->name, GF_LOG_DEBUG, "quota context is " + "NULL on inode (%s). " + "If quota is not enabled recently and crawler " + "has finished crawling, its an error", + uuid_utoa (local->loc.inode->gfid)); + } + + stub = fop_fallocate_stub(frame, quota_fallocate_helper, fd, mode, + offset, len, xdata); + if (stub == NULL) { + op_errno = ENOMEM; + goto unwind; + } + + priv = this->private; + GF_VALIDATE_OR_GOTO (this->name, priv, unwind); + + if (ctx != NULL) { + LOCK (&ctx->lock); + { + list_for_each_entry (dentry, &ctx->parents, next) { + parents++; + } + } + UNLOCK (&ctx->lock); + } + + /* + * Note that by using len as the delta we're assuming the range from + * offset to offset+len has not already been allocated. This can result + * in ENOSPC errors attempting to allocate an already allocated range. + */ + local->delta = len; + local->stub = stub; + local->link_count = parents; + + if (parents == 0) { + local->link_count = 1; + quota_check_limit (frame, fd->inode, this, NULL, NULL); + } else { + list_for_each_entry (dentry, &ctx->parents, next) { + quota_check_limit (frame, fd->inode, this, dentry->name, + dentry->par); + } + } + + return 0; + +unwind: + QUOTA_STACK_UNWIND (fallocate, frame, -1, op_errno, NULL, NULL, NULL); + return 0; + +off: + STACK_WIND_TAIL (frame, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fallocate, fd, mode, offset, + len, xdata); + return 0; +} - STACK_WIND (frame, - quota_lookup_cbk, - FIRST_CHILD(this), - FIRST_CHILD(this)->fops->lookup, - loc, - xattr_req); - return 0; +/* Logs if +* i. Usage crossed soft limit +* ii. Usage above soft limit and alert-time elapsed +*/ +void +quota_log_usage (xlator_t *this, quota_inode_ctx_t *ctx, inode_t *inode, + int64_t delta) +{ + struct timeval cur_time = {0,}; + char *usage_str = NULL; + char size_str[32] = {0}; + char *path = NULL; + int64_t cur_size = 0; + quota_priv_t *priv = NULL; + gf_boolean_t dyn_mem = _gf_true; + + priv = this->private; + if ((ctx->soft_lim <= 0) || (timerisset (&ctx->prev_log) && + !quota_timeout (&ctx->prev_log, + priv->log_timeout))) { + return; + } + + + cur_size = ctx->size + delta; + usage_str = gf_uint64_2human_readable (cur_size); + if (!usage_str) { + snprintf (size_str, sizeof (size_str), "%"PRId64, cur_size); + usage_str = (char*) size_str; + dyn_mem = _gf_false; + } + inode_path (inode, NULL, &path); + if (!path) + path = uuid_utoa (inode->gfid); + + gettimeofday (&cur_time, NULL); + /* Usage crossed/reached soft limit */ + if (DID_REACH_LIMIT (ctx->soft_lim, ctx->size, cur_size)) { + + gf_log (this->name, GF_LOG_ALERT, "Usage crossed " + "soft limit: %s used by %s", usage_str, path); + ctx->prev_log = cur_time; + } + /* Usage is above soft limit */ + else if (cur_size > ctx->soft_lim){ + gf_log (this->name, GF_LOG_ALERT, "Usage is above " + "soft limit: %s used by %s", usage_str, path); + ctx->prev_log = cur_time; + } + + if (dyn_mem) + GF_FREE (usage_str); } int32_t @@ -1037,121 +4080,294 @@ mem_acct_init (xlator_t *this) return ret; ret = xlator_mem_acct_init (this, gf_quota_mt_end + 1); - + if (ret != 0) { - gf_log (this->name, GF_LOG_ERROR, "Memory accounting init" - "failed"); + gf_log (this->name, GF_LOG_WARNING, "Memory accounting" + "init failed"); return ret; } return ret; } -int32_t + +int32_t +quota_forget (xlator_t *this, inode_t *inode) +{ + int32_t ret = 0; + uint64_t ctx_int = 0; + quota_inode_ctx_t *ctx = NULL; + quota_dentry_t *dentry = NULL, *tmp; + + ret = inode_ctx_del (inode, this, &ctx_int); + + if (ret < 0) { + return 0; + } + + ctx = (quota_inode_ctx_t *) (long)ctx_int; + + LOCK (&ctx->lock); + { + list_for_each_entry_safe (dentry, tmp, &ctx->parents, next) { + __quota_dentry_free (dentry); + } + } + UNLOCK (&ctx->lock); + + LOCK_DESTROY (&ctx->lock); + + GF_FREE (ctx); + + return 0; +} + +int32_t init (xlator_t *this) { - int ret = 0; - data_t *data = NULL; - struct quota_priv *_private = NULL; + int32_t ret = -1; + quota_priv_t *priv = NULL; + + if ((this->children == NULL) + || this->children->next) { + gf_log (this->name, GF_LOG_ERROR, + "FATAL: quota (%s) not configured with " + "exactly one child", this->name); + return -1; + } - if (!this->children || this->children->next) { - gf_log (this->name, GF_LOG_ERROR, - "FATAL: quota should have exactly one child"); - return -1; - } - - if (!this->parents) { - gf_log (this->name, GF_LOG_WARNING, - "dangling volume. check volfile "); - } + if (this->parents == NULL) { + gf_log (this->name, GF_LOG_WARNING, + "dangling volume. check volfile"); + } + + QUOTA_ALLOC_OR_GOTO (priv, quota_priv_t, err); + + LOCK_INIT (&priv->lock); - _private = GF_CALLOC (1, sizeof (struct quota_priv), - gf_quota_mt_quota_priv); - _private->disk_usage_limit = 0; - data = dict_get (this->options, "disk-usage-limit"); - if (data) { - if (gf_string2bytesize (data->data, &_private->disk_usage_limit) != 0) { - gf_log (this->name, GF_LOG_ERROR, - "invalid number '%s' for disk-usage limit", data->data); - ret = -1; - goto out; + this->private = priv; + + GF_OPTION_INIT ("deem-statfs", priv->consider_statfs, bool, err); + GF_OPTION_INIT ("server-quota", priv->is_quota_on, bool, err); + GF_OPTION_INIT ("default-soft-limit", priv->default_soft_lim, percent, + err); + GF_OPTION_INIT ("soft-timeout", priv->soft_timeout, time, err); + GF_OPTION_INIT ("hard-timeout", priv->hard_timeout, time, err); + GF_OPTION_INIT ("alert-time", priv->log_timeout, time, err); + GF_OPTION_INIT ("volume-uuid", priv->volume_uuid, str, err); + + this->local_pool = mem_pool_new (quota_local_t, 64); + if (!this->local_pool) { + ret = -1; + gf_log (this->name, GF_LOG_ERROR, + "failed to create local_t's memory pool"); + goto err; + } + + if (priv->is_quota_on) { + priv->rpc_clnt = quota_enforcer_init (this, this->options); + if (priv->rpc_clnt == NULL) { + ret = -1; + gf_log (this->name, GF_LOG_WARNING, + "quota enforcer rpc init failed"); + goto err; } + } - LOCK_INIT (&_private->lock); - _private->current_disk_usage = 0; - } - - _private->min_free_disk_limit = 0; - data = dict_get (this->options, "min-free-disk-limit"); - if (data) { - if (gf_string2percent (data->data, &_private->min_free_disk_limit) != 0) { - gf_log (this->name, GF_LOG_ERROR, - "invalid percent '%s' for min-free-disk limit", data->data); - ret = -1; - goto out; + ret = 0; +err: + return ret; +} + +int +reconfigure (xlator_t *this, dict_t *options) +{ + int32_t ret = -1; + quota_priv_t *priv = NULL; + gf_boolean_t quota_on = _gf_false; + + priv = this->private; + + GF_OPTION_RECONF ("deem-statfs", priv->consider_statfs, options, bool, + out); + GF_OPTION_RECONF ("server-quota", quota_on, options, bool, + out); + GF_OPTION_RECONF ("default-soft-limit", priv->default_soft_lim, + options, percent, out); + GF_OPTION_RECONF ("alert-time", priv->log_timeout, options, + time, out); + GF_OPTION_RECONF ("soft-timeout", priv->soft_timeout, options, + time, out); + GF_OPTION_RECONF ("hard-timeout", priv->hard_timeout, options, + time, out); + + if (quota_on) { + priv->rpc_clnt = quota_enforcer_init (this, + this->options); + if (priv->rpc_clnt == NULL) { + ret = -1; + gf_log (this->name, GF_LOG_WARNING, + "quota enforcer rpc init failed"); + goto out; } - _private->refresh_interval = 20; /* 20seconds is default */ - data = dict_get (this->options, "refresh-interval"); - if (data) { - if (gf_string2time (data->data, - &_private->refresh_interval)!= 0) { - gf_log (this->name, GF_LOG_ERROR, - "invalid time '%s' for refresh " - "interval", data->data); - ret = -1; - goto out; - } - } - } - - _private->only_first_time = 1; - this->private = (void *)_private; - ret = 0; - out: - return ret; -} - -void -fini (xlator_t *this) + + } else { + if (priv->rpc_clnt) { + // Quotad is shutdown when there is no started volume + // which has quota enabled. So, we should disable the + // enforcer client when quota is disabled on a volume, + // to avoid spurious reconnect attempts to a service + // (quotad), that is known to be down. + rpc_clnt_disable (priv->rpc_clnt); + } + } + + priv->is_quota_on = quota_on; + + ret = 0; +out: + return ret; +} + +int32_t +quota_priv_dump (xlator_t *this) { - struct quota_priv *_private = this->private; + quota_priv_t *priv = NULL; + int32_t ret = -1; - if (_private) { - gf_quota_cache_sync (this); - this->private = NULL; - } - - return ; + + GF_ASSERT (this); + + priv = this->private; + + gf_proc_dump_add_section ("xlators.features.quota.priv", this->name); + + ret = TRY_LOCK (&priv->lock); + if (ret) + goto out; + else { + gf_proc_dump_write("soft-timeout", "%d", priv->soft_timeout); + gf_proc_dump_write("hard-timeout", "%d", priv->hard_timeout); + gf_proc_dump_write("alert-time", "%d", priv->log_timeout); + gf_proc_dump_write("quota-on", "%d", priv->is_quota_on); + gf_proc_dump_write("statfs", "%d", priv->consider_statfs); + gf_proc_dump_write("volume-uuid", "%s", priv->volume_uuid); + gf_proc_dump_write("validation-count", "%ld", + priv->validation_count); + } + UNLOCK (&priv->lock); + +out: + return 0; +} + +void +fini (xlator_t *this) +{ + return; } + struct xlator_fops fops = { - .create = quota_create, - .open = quota_open, - .lookup = quota_lookup, - .truncate = quota_truncate, - .ftruncate = quota_ftruncate, - .writev = quota_writev, - .unlink = quota_unlink, - .rmdir = quota_rmdir, - .mknod = quota_mknod, - .mkdir = quota_mkdir, - .symlink = quota_symlink, - .statfs = quota_statfs, + .statfs = quota_statfs, + .lookup = quota_lookup, + .writev = quota_writev, + .create = quota_create, + .mkdir = quota_mkdir, + .truncate = quota_truncate, + .ftruncate = quota_ftruncate, + .unlink = quota_unlink, + .symlink = quota_symlink, + .link = quota_link, + .rename = quota_rename, + .getxattr = quota_getxattr, + .fgetxattr = quota_fgetxattr, + .stat = quota_stat, + .fstat = quota_fstat, + .readlink = quota_readlink, + .readv = quota_readv, + .fsync = quota_fsync, + .setattr = quota_setattr, + .fsetattr = quota_fsetattr, + .mknod = quota_mknod, + .setxattr = quota_setxattr, + .fsetxattr = quota_fsetxattr, + .removexattr = quota_removexattr, + .fremovexattr = quota_fremovexattr, + .readdirp = quota_readdirp, + .fallocate = quota_fallocate, }; struct xlator_cbks cbks = { - .release = quota_release + .forget = quota_forget }; +struct xlator_dumpops dumpops = { + .priv = quota_priv_dump, +}; struct volume_options options[] = { - { .key = {"min-free-disk-limit"}, - .type = GF_OPTION_TYPE_PERCENT - }, - { .key = {"refresh-interval"}, - .type = GF_OPTION_TYPE_TIME - }, - { .key = {"disk-usage-limit"}, - .type = GF_OPTION_TYPE_SIZET - }, - { .key = {NULL} }, + {.key = {"limit-set"}}, + {.key = {"deem-statfs"}, + .type = GF_OPTION_TYPE_BOOL, + .default_value = "off", + .description = "If set to on, it takes quota limits into" + "consideration while estimating fs size. (df command)" + " (Default is off)." + }, + {.key = {"server-quota"}, + .type = GF_OPTION_TYPE_BOOL, + .default_value = "off", + .description = "Skip the quota enforcement if the feature is" + " not turned on. This is not a user exposed option." + }, + {.key = {"default-soft-limit"}, + .type = GF_OPTION_TYPE_PERCENT, + .default_value = "80%", + }, + {.key = {"soft-timeout"}, + .type = GF_OPTION_TYPE_TIME, + .min = 0, + .max = 1800, + .default_value = "60", + .description = "quota caches the directory sizes on client. " + "soft-timeout indicates the timeout for the validity of" + " cache before soft-limit has been crossed." + }, + {.key = {"hard-timeout"}, + .type = GF_OPTION_TYPE_TIME, + .min = 0, + .max = 60, + .default_value = "5", + .description = "quota caches the directory sizes on client. " + "hard-timeout indicates the timeout for the validity of" + " cache after soft-limit has been crossed." + }, + { .key = {"username"}, + .type = GF_OPTION_TYPE_ANY, + }, + { .key = {"password"}, + .type = GF_OPTION_TYPE_ANY, + }, + { .key = {"transport-type"}, + .value = {"tcp", "socket", "ib-verbs", "unix", "ib-sdp", + "tcp/client", "ib-verbs/client", "rdma"}, + .type = GF_OPTION_TYPE_STR, + }, + { .key = {"remote-host"}, + .type = GF_OPTION_TYPE_INTERNET_ADDRESS, + }, + { .key = {"remote-port"}, + .type = GF_OPTION_TYPE_INT, + }, + { .key = {"volume-uuid"}, + .type = GF_OPTION_TYPE_STR, + .description = "uuid of the volume this brick is part of." + }, + { .key = {"alert-time"}, + .type = GF_OPTION_TYPE_TIME, + .min = 0, + .max = 7*86400, + .default_value = "86400", + }, + {.key = {NULL}} }; |