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Diffstat (limited to 'xlators/storage/bd_map/src/bd_map.c')
-rw-r--r--xlators/storage/bd_map/src/bd_map.c1410
1 files changed, 0 insertions, 1410 deletions
diff --git a/xlators/storage/bd_map/src/bd_map.c b/xlators/storage/bd_map/src/bd_map.c
deleted file mode 100644
index 65be62b3ee6..00000000000
--- a/xlators/storage/bd_map/src/bd_map.c
+++ /dev/null
@@ -1,1410 +0,0 @@
-/*
- BD translator - Exports Block devices on server side as regular
- files to client
-
- Now only exporting Logical volumes supported.
-
- Copyright IBM, Corp. 2012
-
- This file is part of GlusterFS.
-
- Author:
- M. Mohan Kumar <mohan@in.ibm.com>
-
- 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.
-*/
-
-#ifndef _CONFIG_H
-#define _CONFIG_H
-#include "config.h"
-#endif
-
-#include <time.h>
-#include <lvm2app.h>
-#include <openssl/md5.h>
-
-#include "bd_map.h"
-#include "bd_map_help.h"
-#include "defaults.h"
-#include "glusterfs3-xdr.h"
-
-
-/* Regular fops */
-
-int
-bd_access (call_frame_t *frame, xlator_t *this,
- loc_t *loc, int32_t mask, dict_t *xdict)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- char path[PATH_MAX] = {0, };
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (loc, out);
-
- sprintf (path, "/dev/mapper/%s", loc->path);
- op_ret = access (path, mask & 07);
- if (op_ret == -1) {
- op_errno = errno;
- gf_log (this->name, GF_LOG_ERROR, "access failed on %s: %s",
- loc->path, strerror (op_errno));
- goto out;
- }
- op_ret = 0;
-out:
- STACK_UNWIND_STRICT (access, frame, op_ret, op_errno, NULL);
-
- return 0;
-}
-
-int32_t
-bd_open (call_frame_t *frame, xlator_t *this,
- loc_t *loc, int32_t flags, fd_t *fd, dict_t *xdata)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- int32_t _fd = -1;
- bd_fd_t *bd_fd = NULL;
- bd_entry_t *lventry = NULL;
- bd_priv_t *priv = NULL;
- char *devpath = NULL;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
- VALIDATE_OR_GOTO (loc, out);
- VALIDATE_OR_GOTO (fd, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv, out);
-
- BD_ENTRY (priv, lventry, loc->path);
- if (!lventry) {
- op_errno = ENOENT;
- goto out;
- }
-
- gf_asprintf (&devpath, "/dev/%s/%s", lventry->parent->name,
- lventry->name);
- _fd = open (devpath, flags, 0);
- if (_fd == -1) {
- op_errno = errno;
- gf_log (this->name, GF_LOG_ERROR,
- "open on %s: %s", devpath, strerror (op_errno));
- goto out;
- }
-
- bd_fd = GF_CALLOC (1, sizeof(*bd_fd), gf_bd_fd);
- if (!bd_fd) {
- op_errno = errno;
- goto out;
- }
- bd_fd->entry = lventry;
- bd_fd->fd = _fd;
-
- op_ret = fd_ctx_set (fd, this, (uint64_t)(long)bd_fd);
- if (op_ret) {
- gf_log (this->name, GF_LOG_WARNING,
- "failed to set the fd context path=%s fd=%p",
- loc->name, fd);
- goto out;
- }
-
- op_ret = 0;
-out:
- if (op_ret == -1) {
- if (_fd != -1)
- close (_fd);
- /* FIXME: Should we call fd_ctx_set with NULL? */
- if (bd_fd)
- GF_FREE (bd_fd);
- if (lventry)
- BD_PUT_ENTRY (priv, lventry);
- }
- if (devpath)
- GF_FREE (devpath);
-
- STACK_UNWIND_STRICT (open, frame, op_ret, op_errno, fd, NULL);
-
- return 0;
-}
-
-int
-bd_readv (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size,
- off_t offset, uint32_t flags, dict_t *xdata)
-{
- uint64_t tmp_bd_fd = 0;
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- int _fd = -1;
- bd_priv_t *priv = NULL;
- struct iobuf *iobuf = NULL;
- struct iobref *iobref = NULL;
- struct iovec vec = {0, };
- bd_fd_t *bd_fd = NULL;
- int ret = -1;
- struct iatt stbuf = {0, };
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
- VALIDATE_OR_GOTO (this->private, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv, out);
-
- ret = fd_ctx_get (fd, this, &tmp_bd_fd);
- if (ret < 0) {
- op_errno = -EINVAL;
- gf_log (this->name, GF_LOG_WARNING,
- "bd_fd is NULL from fd=%p", fd);
- goto out;
- }
- bd_fd = (bd_fd_t *)(long)tmp_bd_fd;
- if (!size) {
- op_errno = EINVAL;
- gf_log (this->name, GF_LOG_WARNING, "size=%"GF_PRI_SIZET, size);
- goto out;
- }
- iobuf = iobuf_get2 (this->ctx->iobuf_pool, size);
- if (!iobuf) {
- op_errno = ENOMEM;
- goto out;
- }
- _fd = bd_fd->fd;
- op_ret = pread (_fd, iobuf->ptr, size, offset);
- if (op_ret == -1) {
- op_errno = errno;
- gf_log (this->name, GF_LOG_ERROR,
- "read failed on fd=%p: %s", fd,
- strerror (op_errno));
- goto out;
- }
-
- vec.iov_base = iobuf->ptr;
- vec.iov_len = op_ret;
-
- iobref = iobref_new ();
- iobref_add (iobref, iobuf);
- BD_ENTRY_UPDATE_ATIME (bd_fd->entry);
-
- memcpy (&stbuf, bd_fd->entry->attr, sizeof(stbuf));
-
- /* Hack to notify higher layers of EOF. */
- if (bd_fd->entry->size == 0)
- op_errno = ENOENT;
- else if ((offset + vec.iov_len) >= bd_fd->entry->size)
- op_errno = ENOENT;
- op_ret = vec.iov_len;
-out:
- STACK_UNWIND_STRICT (readv, frame, op_ret, op_errno,
- &vec, 1, &stbuf, iobref, NULL);
-
- if (iobref)
- iobref_unref (iobref);
- if (iobuf)
- iobuf_unref (iobuf);
- return 0;
-}
-
- int32_t
-bd_ftruncate (call_frame_t *frame, xlator_t *this,
- fd_t *fd, off_t offset, dict_t *xdict)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- struct iatt preop = {0, };
- struct iatt postop = {0, };
- bd_fd_t *bd_fd = NULL;
- int ret = -1;
- uint64_t tmp_bd_fd = 0;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
-
- ret = fd_ctx_get (fd, this, &tmp_bd_fd);
- if (ret < 0) {
- gf_log (this->name, GF_LOG_WARNING,
- "bd_fd is NULL, fd=%p", fd);
- op_errno = -ret;
- goto out;
- }
- bd_fd = (bd_fd_t *)(long)tmp_bd_fd;
-
- memcpy (&preop, bd_fd->entry->attr, sizeof(preop));
- if (offset >= bd_fd->entry->size) {
- op_errno = EFBIG;
- goto out;
- }
- /* If the requested size is less then current size
- * we will not update that in bd_fd->entry->attr
- * because it will result in showing size of this file less
- * instead we will return 0 for less size truncation
- */
- BD_ENTRY_UPDATE_MTIME (bd_fd->entry);
- memcpy (&postop, bd_fd->entry->attr, sizeof(postop));
-
- op_ret = 0;
-out:
- STACK_UNWIND_STRICT (ftruncate, frame, op_ret, op_errno, &preop,
- &postop, NULL);
- return 0;
-}
-
-int32_t
-bd_truncate (call_frame_t *frame, xlator_t *this, loc_t *loc,
- off_t offset, dict_t *xdict)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- struct iatt prebuf = {0, };
- struct iatt postbuf = {0, };
- bd_entry_t *lventry = NULL;
- bd_priv_t *priv = NULL;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (loc, out);
-
- priv = this->private;
- BD_ENTRY (priv, lventry, loc->path);
- if (!lventry) {
- op_errno = ENOENT;
- gf_log (this->name, GF_LOG_ERROR,
- "pre-operation lstat on %s failed: %s",
- loc->path, strerror (op_errno));
- goto out;
- }
- memcpy (&prebuf, lventry->attr, sizeof(prebuf));
- if (offset >= lventry->size) {
- op_errno = EFBIG;
- goto out;
- }
- BD_ENTRY_UPDATE_MTIME (lventry);
- memcpy (&postbuf, lventry->attr, sizeof(postbuf));
- BD_PUT_ENTRY (priv, lventry);
- op_ret = 0;
-out:
- STACK_UNWIND_STRICT (truncate, frame, op_ret, op_errno,
- &prebuf, &postbuf, NULL);
- return 0;
-}
-
-int32_t
-__bd_pwritev (int fd, struct iovec *vector, int count, off_t offset,
- uint64_t bd_size)
-{
- int32_t op_ret = 0;
- int index = 0;
- int retval = 0;
- off_t internal_offset = 0;
- int no_space = 0;
-
- if (!vector)
- return -EFAULT;
-
- internal_offset = offset;
- for (index = 0; index < count; index++) {
- if (internal_offset >= bd_size) {
- op_ret = -ENOSPC;
- goto err;
- }
- if (internal_offset + vector[index].iov_len >= bd_size) {
- vector[index].iov_len = bd_size - internal_offset;
- no_space = 1;
- }
-
- retval = pwrite (fd, vector[index].iov_base,
- vector[index].iov_len, internal_offset);
- if (retval == -1) {
- gf_log (THIS->name, GF_LOG_WARNING,
- "base %p, length %ld, offset %ld, message %s",
- vector[index].iov_base, vector[index].iov_len,
- internal_offset, strerror (errno));
- op_ret = -errno;
- goto err;
- }
- op_ret += retval;
- internal_offset += retval;
- if (no_space)
- break;
- }
-err:
- return op_ret;
-}
-
-int
-bd_writev (call_frame_t *frame, xlator_t *this, fd_t *fd,
- struct iovec *vector, int32_t count, off_t offset,
- uint32_t flags, struct iobref *iobref, dict_t *xdict)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- int _fd = -1;
- bd_priv_t *priv = NULL;
- bd_fd_t *bd_fd = NULL;
- int ret = -1;
- struct iatt preop = {0, };
- struct iatt postop = {0, };
- uint64_t tmp_bd_fd = 0;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
- VALIDATE_OR_GOTO (vector, out);
- VALIDATE_OR_GOTO (this->private, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv, out);
-
- ret = fd_ctx_get (fd, this, &tmp_bd_fd);
- if (ret < 0) {
- op_errno = -ret;
- gf_log (this->name, GF_LOG_WARNING,
- "bd_fd is NULL from fd=%p", fd);
- goto out;
- }
- bd_fd = (bd_fd_t *)(long)tmp_bd_fd;
- _fd = bd_fd->fd;
-
- memcpy (&preop, bd_fd->entry->attr, sizeof(preop));
- op_ret = __bd_pwritev (_fd, vector, count, offset, bd_fd->entry->size);
- if (op_ret < 0) {
- op_errno = -op_ret;
- op_ret = -1;
- gf_log (this->name, GF_LOG_ERROR, "write failed: offset %"PRIu64
- ", %s", offset, strerror (op_errno));
- goto out;
- }
- BD_ENTRY_UPDATE_MTIME (bd_fd->entry);
- memcpy (&postop, bd_fd->entry->attr, sizeof(postop));
-
-out:
- STACK_UNWIND_STRICT (writev, frame, op_ret, op_errno, &preop,
- &postop, NULL);
-
- return 0;
-}
-
-int32_t
-bd_lookup (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xattr_req)
-{
- struct iatt buf = {0, };
- int32_t op_ret = -1;
- int32_t entry_ret = 0;
- int32_t op_errno = 0;
- char *pathdup = NULL;
- bd_entry_t *bdentry = NULL;
- struct iatt postparent = {0, };
- bd_priv_t *priv = NULL;
- char *p = NULL;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (loc, out);
- VALIDATE_OR_GOTO (loc->path, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv, out);
-
- BD_ENTRY (priv, bdentry, loc->path);
- if (!bdentry) {
- op_errno = ENOENT;
- entry_ret = -1;
- goto parent;
- }
- memcpy (&buf, bdentry->attr, sizeof(buf));
- BD_PUT_ENTRY (priv, bdentry);
-
-parent:
- if (loc->parent) {
- pathdup = p = gf_strdup (loc->path);
- if (!pathdup) {
- op_errno = ENOMEM;
- entry_ret = -1;
- goto out;
- }
- p = strrchr (pathdup, '/');
- if (p == pathdup)
- *(p+1) = '\0';
- else
- *p = '\0';
- BD_ENTRY (priv, bdentry, pathdup);
- if (!bdentry) {
- op_errno = ENOENT;
- gf_log (this->name, GF_LOG_ERROR,
- "post-operation lookup on parent of %s "
- "failed: %s",
- loc->path, strerror (op_errno));
- goto out;
- }
- memcpy (&postparent, bdentry->attr, sizeof(postparent));
- BD_PUT_ENTRY (priv, bdentry);
- }
-
- op_ret = entry_ret;
-out:
- if (pathdup)
- GF_FREE (pathdup);
-
- STACK_UNWIND_STRICT (lookup, frame, op_ret, op_errno,
- (loc)?loc->inode:NULL, &buf, NULL, &postparent);
-
- return 0;
-}
-
-int32_t
-bd_stat (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata)
-{
- struct iatt buf = {0,};
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- bd_entry_t *bdentry = NULL;
- bd_priv_t *priv = NULL;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (loc, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv, out);
-
- BD_ENTRY (priv, bdentry, loc->path);
- if (!bdentry) {
- op_errno = ENOENT;
- gf_log (this->name, GF_LOG_ERROR, "stat on %s failed: %s",
- loc->path, strerror (op_errno));
- goto out;
- }
- memcpy (&buf, bdentry->attr, sizeof(buf));
- BD_PUT_ENTRY (priv, bdentry);
- op_ret = 0;
-
-out:
- STACK_UNWIND_STRICT (stat, frame, op_ret, op_errno, &buf, NULL);
-
- return 0;
-}
-
-int32_t
-bd_fstat (call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *xdata)
-{
- int ret = -1;
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- uint64_t tmp_bd_fd = 0;
- struct iatt buf = {0, };
- bd_fd_t *bd_fd = NULL;
- int _fd = -1;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
-
- ret = fd_ctx_get (fd, this, &tmp_bd_fd);
- if (ret < 0) {
- gf_log (this->name, GF_LOG_WARNING,
- "bd_fd is NULL, fd=%p", fd);
- op_errno = -EINVAL;
- goto out;
- }
- bd_fd = (bd_fd_t *)(long)tmp_bd_fd;
- _fd = bd_fd->fd;
-
- memcpy (&buf, bd_fd->entry->attr, sizeof(buf));
- op_ret = 0;
-
-out:
- STACK_UNWIND_STRICT (stat, frame, op_ret, op_errno, &buf, NULL);
- return 0;
-}
-
-int32_t
-bd_opendir (call_frame_t *frame, xlator_t *this,
- loc_t *loc, fd_t *fd, dict_t *xdata)
-{
- int32_t op_ret = -1;
- int32_t op_errno = EINVAL;
- bd_fd_t *bd_fd = NULL;
- bd_entry_t *bdentry = NULL;
- bd_priv_t *priv = NULL;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (loc, out);
- VALIDATE_OR_GOTO (loc->path, out);
- VALIDATE_OR_GOTO (fd, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv, out);
-
- BD_ENTRY (priv, bdentry, loc->path);
- if (!bdentry) {
- op_errno = ENOENT;
- gf_log (this->name, GF_LOG_ERROR, "opendir failed on %s: %s",
- loc->path, strerror (op_errno));
- goto out;
- }
- bd_fd = GF_CALLOC (1, sizeof(*bd_fd), gf_bd_fd);
- if (!bd_fd) {
- op_errno = errno;
- BD_PUT_ENTRY (priv, bdentry);
- goto out;
- }
-
- bd_fd->p_entry = bdentry;
-
- bdentry = list_entry ((&bdentry->child)->next, typeof(*bdentry), child);
- if (!bdentry) {
- op_errno = EINVAL;
- gf_log (this->name, GF_LOG_ERROR, "bd_entry NULL");
- goto out;
- }
- bdentry = list_entry ((&bdentry->sibling), typeof(*bdentry), sibling);
- if (!bdentry) {
- op_errno = EINVAL;
- gf_log (this->name, GF_LOG_ERROR, "bd_entry NULL");
- goto out;
- }
-
- bd_fd->entry = bdentry;
-
- op_ret = fd_ctx_set (fd, this, (uint64_t) (long)bd_fd);
- if (op_ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "failed to set the fd context path=%s fd=%p",
- loc->path, fd);
- goto out;
- }
-
- op_ret = 0;
-out:
- if (op_ret == -1) {
- BD_PUT_ENTRY (priv, bd_fd->p_entry);
- if (bd_fd)
- GF_FREE (bd_fd);
- }
-
- STACK_UNWIND_STRICT (opendir, frame, op_ret, op_errno, fd, NULL);
- return 0;
-}
-
-int32_t
-bd_releasedir (xlator_t *this, fd_t *fd)
-{
- bd_fd_t *bd_fd = NULL;
- uint64_t tmp_bd_fd = 0;
- int ret = 0;
- bd_priv_t *priv = NULL;
-
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv, out);
-
- ret = fd_ctx_del (fd, this, &tmp_bd_fd);
- if (ret < 0) {
- gf_log (this->name, GF_LOG_DEBUG, "bd_fd from fd=%p is NULL",
- fd);
- goto out;
- }
- bd_fd = (bd_fd_t *) (long)tmp_bd_fd;
- BD_PUT_ENTRY (priv, bd_fd->p_entry);
-
- bd_fd = (bd_fd_t *) (long)tmp_bd_fd;
- GF_FREE (bd_fd);
-out:
- return 0;
-}
-
-/*
- * bd_statfs: Mimics statfs by returning used/free extents in the VG
- * TODO: IF more than one VG allowed per volume, this functions needs some
- * change
- */
-int32_t
-bd_statfs (call_frame_t *frame, xlator_t *this,
- loc_t *loc, dict_t *xdata)
-{
- int32_t op_ret = -1;
- int32_t ret = -1;
- int32_t op_errno = 0;
- bd_priv_t *priv = NULL;
- struct statvfs buf = {0, };
- vg_t vg = NULL;
- char *vg_name = NULL;
- uint64_t size = 0;
- uint64_t fr_size = 0;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
- VALIDATE_OR_GOTO (loc, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv, out);
-
- ret = dict_get_str (this->options, "export", &vg_name);
- if (ret) {
- gf_log (this->name, GF_LOG_CRITICAL,
- "FATAL: storage/bd does not specify volume groups");
- op_errno = EINVAL;
- goto out;
- }
-
- BD_RD_LOCK (&priv->lock);
-
- vg = lvm_vg_open (priv->handle, vg_name, "r", 0);
- size += lvm_vg_get_size (vg);
- fr_size += lvm_vg_get_free_size (vg);
- lvm_vg_close (vg);
-
- BD_UNLOCK (&priv->lock);
-
- if (statvfs ("/", &buf) < 0) {
- op_errno = errno;
- goto out;
- }
- op_ret = 0;
- buf.f_blocks = size / buf.f_frsize;
- buf.f_bfree = fr_size / buf.f_frsize;
- buf.f_bavail = fr_size / buf.f_frsize;
-out:
- STACK_UNWIND_STRICT (statfs, frame, op_ret, op_errno, &buf, NULL);
- return 0;
-}
-
-int32_t
-bd_release (xlator_t *this, fd_t *fd)
-{
- bd_fd_t *bd_fd = NULL;
- int ret = -1;
- uint64_t tmp_bd_fd = 0;
- bd_priv_t *priv = NULL;
-
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv, out);
-
- ret = fd_ctx_get (fd, this, &tmp_bd_fd);
- if (ret < 0) {
- gf_log (this->name, GF_LOG_WARNING, "bd_fd is NULL from fd=%p",
- fd);
- goto out;
- }
- bd_fd = (bd_fd_t *) (long)tmp_bd_fd;
- close (bd_fd->fd);
- BD_PUT_ENTRY (priv, bd_fd->entry);
-
- GF_FREE (bd_fd);
-out:
- return 0;
-}
-
-int32_t
-bd_fsync (call_frame_t *frame, xlator_t *this,
- fd_t *fd, int32_t datasync, dict_t *xdata)
-{
- int _fd = -1;
- int ret = -1;
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- uint64_t tmp_bd_fd = 0;
- bd_fd_t *bd_fd = NULL;
- struct iatt preop = {0, };
- struct iatt postop = {0, };
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
-
- ret = fd_ctx_get (fd, this, &tmp_bd_fd);
- if (ret < 0) {
- gf_log (this->name, GF_LOG_WARNING,
- "bd_fd is NULL, fd=%p", fd);
- op_errno = -ret;
- goto out;
- }
- bd_fd = (bd_fd_t *)(long)tmp_bd_fd;
-
- _fd = bd_fd->fd;
- memcpy (&preop, &bd_fd->entry->attr, sizeof(preop));
- if (datasync) {
- ;
-#ifdef HAVE_FDATASYNC
- op_ret = fdatasync (_fd);
- if (op_ret == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "fdatasync on fd=%p failed: %s",
- fd, strerror (errno));
- }
-#endif
- } else {
- op_ret = fsync (_fd);
- if (op_ret == -1) {
- op_errno = errno;
- gf_log (this->name, GF_LOG_ERROR,
- "fsync on fd=%p failed: %s",
- fd, strerror (op_errno));
- goto out;
- }
- }
-
- memcpy (&postop, bd_fd->entry->attr, sizeof(postop));
- op_ret = 0;
-
-out:
- STACK_UNWIND_STRICT (fsync, frame, op_ret, op_errno, &preop,
- &postop, NULL);
-
- return 0;
-}
-
-int32_t
-bd_flush (call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *xdict)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- int ret = -1;
- uint64_t tmp_bd_fd = 0;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
-
- ret = fd_ctx_get (fd, this, &tmp_bd_fd);
- if (ret < 0) {
- op_errno = -EINVAL;
- gf_log (this->name, GF_LOG_WARNING,
- "bd_fd is NULL on fd=%p", fd);
- goto out;
- }
- op_ret = 0;
-out:
- STACK_UNWIND_STRICT (flush, frame, op_ret, op_errno, NULL);
-
- return 0;
-}
-
-int
-__bd_fill_readdir (pthread_rwlock_t *bd_lock, bd_fd_t *bd_fd, off_t off,
- size_t size, gf_dirent_t *entries)
-{
- size_t filled = 0;
- int count = 0;
- struct dirent entry = {0, };
- int32_t this_size = -1;
- gf_dirent_t *this_entry = NULL;
- bd_entry_t *bdentry = NULL;
- bd_entry_t *cur_entry = NULL;
- bd_entry_t *n_entry = NULL;
-
- BD_RD_LOCK (bd_lock);
-
- bdentry = list_entry ((&bd_fd->p_entry->child)->next, typeof(*n_entry),
- child);
-
- if (off) {
- int i = 0;
- list_for_each_entry (n_entry, &bd_fd->entry->sibling, sibling) {
- if (i == off && strcmp (n_entry->name, "")) {
- bd_fd->entry = n_entry;
- break;
- }
- }
- } else
- bd_fd->entry = list_entry ((&bdentry->sibling),
- typeof(*n_entry), sibling);
-
- while (filled <= size) {
- cur_entry = bd_fd->entry;
-
- n_entry = list_entry ((&bd_fd->entry->sibling)->next,
- typeof (*cur_entry), sibling);
- if (&n_entry->sibling == (&bdentry->sibling))
- break;
-
- strcpy (entry.d_name, n_entry->name);
- entry.d_ino = n_entry->attr->ia_ino;
- entry.d_off = off;
- if (n_entry->attr->ia_type == IA_IFDIR)
- entry.d_type = DT_DIR;
- else
- entry.d_type = DT_REG;
-
- this_size = max (sizeof(gf_dirent_t),
- sizeof (gfs3_dirplist))
- + strlen (entry.d_name) + 1;
-
- if (this_size + filled > size)
- break;
-
- bd_fd->entry = n_entry;
-
- this_entry = gf_dirent_for_name (entry.d_name);
- if (!this_entry) {
- gf_log (THIS->name, GF_LOG_ERROR,
- "could not create gf_dirent for entry %s",
- entry.d_name);
- goto out;
- }
- this_entry->d_off = off;
- this_entry->d_ino = entry.d_ino;
- this_entry->d_type = entry.d_type;
- off++;
-
- list_add_tail (&this_entry->list, &entries->list);
-
- filled += this_size;
- count++;
- }
-out:
- BD_UNLOCK (bd_lock);
- return count;
-}
-
-int32_t
-bd_do_readdir (call_frame_t *frame, xlator_t *this,
- fd_t *fd, size_t size, off_t off, int whichop)
-{
- uint64_t tmp_bd_fd = 0;
- bd_fd_t *bd_fd = NULL;
- int ret = -1;
- int count = 0;
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- gf_dirent_t entries;
- gf_dirent_t *tmp_entry = NULL;
- bd_entry_t *bdentry = NULL;
- bd_priv_t *priv = NULL;
- char *devpath = NULL;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv, out);
-
- INIT_LIST_HEAD (&entries.list);
-
- ret = fd_ctx_get (fd, this, &tmp_bd_fd);
- if (ret < 0) {
- gf_log (this->name, GF_LOG_WARNING, "bd_fd is NULL, fd=%p", fd);
- op_errno = -EINVAL;
- goto out;
- }
- bd_fd = (bd_fd_t *) (long)tmp_bd_fd;
- LOCK (&fd->lock);
- {
- count = __bd_fill_readdir (&priv->lock, bd_fd, off,
- size, &entries);
- }
- UNLOCK (&fd->lock);
-
- /* pick ENOENT to indicate EOF */
- op_errno = errno;
- op_ret = count;
-
- if (whichop != GF_FOP_READDIRP)
- goto out;
-
- BD_RD_LOCK (&priv->lock);
- list_for_each_entry (tmp_entry, &entries.list, list) {
- char path[PATH_MAX];
- sprintf (path, "%s/%s", bd_fd->p_entry->name,
- tmp_entry->d_name);
- bdentry = bd_entry_get (path);
- if (!bdentry) {
- gf_log (this->name, GF_LOG_WARNING,
- "entry failed %s\n", tmp_entry->d_name);
- continue;
- }
- if (bdentry->attr->ia_ino)
- tmp_entry->d_ino = bdentry->attr->ia_ino;
- memcpy (&tmp_entry->d_stat,
- bdentry->attr, sizeof (tmp_entry->d_stat));
- bd_entry_put (bdentry);
- GF_FREE (devpath);
- }
- BD_UNLOCK (&priv->lock);
-
-out:
- STACK_UNWIND_STRICT (readdir, frame, op_ret, op_errno, &entries, NULL);
-
- gf_dirent_free (&entries);
-
- return 0;
-}
-
-int32_t
-bd_readdir (call_frame_t *frame, xlator_t *this,
- fd_t *fd, size_t size, off_t off, dict_t *dict)
-{
- bd_do_readdir (frame, this, fd, size, off, GF_FOP_READDIR);
- return 0;
-}
-
-
-int32_t
-bd_readdirp (call_frame_t *frame, xlator_t *this,
- fd_t *fd, size_t size, off_t off, dict_t *dict)
-{
- bd_do_readdir (frame, this, fd, size, off, GF_FOP_READDIRP);
- return 0;
-}
-
-int32_t
-bd_priv (xlator_t *this)
-{
- return 0;
-}
-
-int32_t
-bd_inode (xlator_t *this)
-{
- return 0;
-}
-
-/* unsupported interfaces */
-int bd_setattr (call_frame_t *frame, xlator_t *this, loc_t *loc,
- struct iatt *stbuf, int32_t valid, dict_t *xdata)
-{
- STACK_UNWIND_STRICT (setattr, frame, -1, ENOSYS, NULL, NULL, NULL);
- return 0;
-}
-
-int32_t
-bd_readlink (call_frame_t *frame, xlator_t *this,
- loc_t *loc, size_t size, dict_t *xdata)
-{
- struct iatt stbuf = {0, };
- char *dest = NULL;
-
- dest = alloca (size + 1);
- STACK_UNWIND_STRICT (readlink, frame, -1, ENOSYS, dest, &stbuf, NULL);
- return 0;
-}
-
-int
-bd_mknod (call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode,
- dev_t dev, mode_t umask, dict_t *xdata)
-{
- struct iatt stbuf = {0, };
- struct iatt preparent = {0, };
- struct iatt postparent = {0, };
-
- STACK_UNWIND_STRICT (mknod, frame, -1, ENOSYS,
- (loc)?loc->inode:NULL, &stbuf, &preparent,
- &postparent, NULL);
- return 0;
-}
-
-int
-bd_mkdir (call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode,
- mode_t umask, dict_t *xdata)
-{
- struct iatt stbuf = {0, };
- struct iatt preparent = {0, };
- struct iatt postparent = {0, };
-
- STACK_UNWIND_STRICT (mkdir, frame, -1, ENOSYS,
- (loc)?loc->inode:NULL, &stbuf, &preparent,
- &postparent, NULL);
- return 0;
-}
-
-int
-bd_rmdir (call_frame_t *frame, xlator_t *this, loc_t *loc, int flags,
- dict_t *xdata)
-{
- struct iatt preparent = {0, };
- struct iatt postparent = {0, };
-
- STACK_UNWIND_STRICT (rmdir, frame, -1, ENOSYS,
- &preparent, &postparent, NULL);
- return 0;
-}
-
-int
-bd_link (call_frame_t *frame, xlator_t *this,
- loc_t *oldloc, loc_t *newloc, dict_t *xdata)
-{
- struct iatt stbuf = {0, };
- struct iatt preparent = {0,};
- struct iatt postparent = {0,};
-
- STACK_UNWIND_STRICT (link, frame, -1, ENOSYS,
- (oldloc)?oldloc->inode:NULL, &stbuf, &preparent,
- &postparent, NULL);
-
- return 0;
-}
-
-int32_t
-bd_setxattr (call_frame_t *frame, xlator_t *this,
- loc_t *loc, dict_t *dict, int flags, dict_t *xdata)
-{
- STACK_UNWIND_STRICT (setxattr, frame, -1, ENOSYS, NULL);
- return 0;
-}
-
-int32_t
-bd_fsetxattr (call_frame_t *frame, xlator_t *this,
- fd_t *fd, dict_t *dict, int flags, dict_t *xdata)
-{
- STACK_UNWIND_STRICT (setxattr, frame, -1, ENOSYS, NULL);
- return 0;
-}
-
-int32_t
-bd_getxattr (call_frame_t *frame, xlator_t *this,
- loc_t *loc, const char *name, dict_t *xdata)
-{
- STACK_UNWIND_STRICT (getxattr, frame, -1, ENOSYS, NULL, NULL);
- return 0;
-}
-
-int32_t
-bd_fgetxattr (call_frame_t *frame, xlator_t *this,
- fd_t *fd, const char *name, dict_t *xdata)
-{
- STACK_UNWIND_STRICT (fgetxattr, frame, -1, ENOSYS, NULL, NULL);
-
- return 0;
-}
-
-int32_t
-bd_removexattr (call_frame_t *frame, xlator_t *this,
- loc_t *loc, const char *name, dict_t *xdata)
-{
- STACK_UNWIND_STRICT (removexattr, frame, -1, ENOSYS, NULL);
- return 0;
-}
-
-int32_t
-bd_fremovexattr (call_frame_t *frame, xlator_t *this,
- fd_t *fd, const char *name, dict_t *xdata)
-{
- STACK_UNWIND_STRICT (fremovexattr, frame, -1, ENOSYS, NULL);
- return 0;
-}
-
-int32_t
-bd_fsyncdir (call_frame_t *frame, xlator_t *this,
- fd_t *fd, int datasync, dict_t *xdata)
-{
- STACK_UNWIND_STRICT (fsyncdir, frame, -1, ENOSYS, NULL);
- return 0;
-}
-
-static int gf_bd_lk_log;
-int32_t
-bd_lk (call_frame_t *frame, xlator_t *this,
- fd_t *fd, int32_t cmd, struct gf_flock *lock, dict_t *xdata)
-{
- struct gf_flock nullock = {0, };
-
- GF_LOG_OCCASIONALLY (gf_bd_lk_log, this->name, GF_LOG_CRITICAL,
- "\"features/locks\" translator is "
- "not loaded. You need to use it for proper "
- "functioning of your application.");
-
- STACK_UNWIND_STRICT (lk, frame, -1, ENOSYS, &nullock, NULL);
- return 0;
-}
-
-int32_t
-bd_inodelk (call_frame_t *frame, xlator_t *this,
- const char *volume, loc_t *loc, int32_t cmd,
- struct gf_flock *lock, dict_t *xdata)
-{
- GF_LOG_OCCASIONALLY (gf_bd_lk_log, this->name, GF_LOG_CRITICAL,
- "\"features/locks\" translator is "
- "not loaded. You need to use it for proper "
- "functioning of your application.");
-
- STACK_UNWIND_STRICT (inodelk, frame, -1, ENOSYS, NULL);
- return 0;
-}
-
-int32_t
-bd_finodelk (call_frame_t *frame, xlator_t *this,
- const char *volume, fd_t *fd, int32_t cmd,
- struct gf_flock *lock, dict_t *xdata)
-{
- GF_LOG_OCCASIONALLY (gf_bd_lk_log, this->name, GF_LOG_CRITICAL,
- "\"features/locks\" translator is "
- "not loaded. You need to use it for proper "
- "functioning of your application.");
-
- STACK_UNWIND_STRICT (finodelk, frame, -1, ENOSYS, NULL);
- return 0;
-}
-
-
-int32_t
-bd_entrylk (call_frame_t *frame, xlator_t *this,
- const char *volume, loc_t *loc, const char *basename,
- entrylk_cmd cmd, entrylk_type type, dict_t *xdata)
-{
- GF_LOG_OCCASIONALLY (gf_bd_lk_log, this->name, GF_LOG_CRITICAL,
- "\"features/locks\" translator is "
- "not loaded. You need to use it for proper "
- "functioning of your application.");
-
- STACK_UNWIND_STRICT (entrylk, frame, -1, ENOSYS, NULL);
- return 0;
-}
-
-int32_t
-bd_fentrylk (call_frame_t *frame, xlator_t *this,
- const char *volume, fd_t *fd, const char *basename,
- entrylk_cmd cmd, entrylk_type type, dict_t *xdata)
-{
- GF_LOG_OCCASIONALLY (gf_bd_lk_log, this->name, GF_LOG_CRITICAL,
- "\"features/locks\" translator is "
- "not loaded. You need to use it for proper "
- "functioning of your application.");
-
- STACK_UNWIND_STRICT (fentrylk, frame, -1, ENOSYS, NULL);
- return 0;
-}
-
-int32_t
-bd_rchecksum (call_frame_t *frame, xlator_t *this,
- fd_t *fd, off_t offset, int32_t len, dict_t *xdata)
-{
- int32_t weak_checksum = 0;
- unsigned char strong_checksum[MD5_DIGEST_LENGTH];
-
- STACK_UNWIND_STRICT (rchecksum, frame, -1, ENOSYS,
- weak_checksum, strong_checksum, NULL);
- return 0;
-}
-
-int
-bd_xattrop (call_frame_t *frame, xlator_t *this,
- loc_t *loc, gf_xattrop_flags_t optype, dict_t *xattr,
- dict_t *xdata)
-{
- STACK_UNWIND_STRICT (xattrop, frame, -1, ENOSYS, xattr, NULL);
- return 0;
-}
-
-
-int
-bd_fxattrop (call_frame_t *frame, xlator_t *this,
- fd_t *fd, gf_xattrop_flags_t optype, dict_t *xattr,
- dict_t *xdata)
-{
- STACK_UNWIND_STRICT (xattrop, frame, -1, ENOSYS, xattr, NULL);
- return 0;
-}
-
-/**
- * notify - when parent sends PARENT_UP, send CHILD_UP event from here
- */
-int32_t
-notify (xlator_t *this,
- int32_t event,
- void *data,
- ...)
-{
- switch (event)
- {
- case GF_EVENT_PARENT_UP:
- {
- /* Tell the parent that bd xlator is up */
- default_notify (this, GF_EVENT_CHILD_UP, data);
- }
- break;
- default:
- break;
- }
- return 0;
-}
-
-int32_t
-mem_acct_init (xlator_t *this)
-{
- int ret = -1;
-
- if (!this)
- return ret;
-
- ret = xlator_mem_acct_init (this, gf_bd_mt_end + 1);
-
- if (ret != 0) {
- gf_log (this->name, GF_LOG_ERROR, "Memory accounting init"
- "failed");
- return ret;
- }
-
- return ret;
-}
-
-
-/**
- * init - Constructs lists of LVs in the given VG
- */
-int
-init (xlator_t *this)
-{
- bd_priv_t *_private = NULL;
- int ret = 0;
- char *vg = NULL;
- char *device = NULL;
-
- LOCK_INIT (&inode_lk);
-
- bd_rootp = bd_entry_add_root ();
- if (!bd_rootp) {
- gf_log (this->name, GF_LOG_CRITICAL,
- "FATAL: adding root entry failed");
- return -1;
- }
-
- if (this->children) {
- gf_log (this->name, GF_LOG_CRITICAL,
- "FATAL: storage/bd cannot have subvolumes");
- ret = -1;
- goto out;
- }
-
- if (!this->parents) {
- gf_log (this->name, GF_LOG_WARNING,
- "Volume is dangling. Please check the volume file.");
- }
-
- ret = dict_get_str (this->options, "device", &device);
- if (ret) {
- gf_log (this->name, GF_LOG_CRITICAL,
- "FATAL: storage/bd does not specify backend");
- return -1;
- }
-
- /* Now we support only LV device */
- if (strcasecmp (device, BACKEND_VG)) {
- gf_log (this->name, GF_LOG_CRITICAL,
- "FATAL: unknown %s backend %s", BD_XLATOR, device);
- return -1;
- }
-
- ret = dict_get_str (this->options, "export", &vg);
- if (ret) {
- gf_log (this->name, GF_LOG_CRITICAL,
- "FATAL: storage/bd does not specify volume groups");
- return -1;
- }
-
- ret = 0;
- _private = GF_CALLOC (1, sizeof(*_private), gf_bd_private);
- if (!_private)
- goto error;
-
- pthread_rwlock_init (&_private->lock, NULL);
- this->private = (void *)_private;
- _private->handle = NULL;
- _private->vg = gf_strdup (vg);
- if (!_private->vg) {
- goto error;
- }
-
- if (bd_build_lv_list (this->private, vg) < 0)
- goto error;
-
-out:
- return 0;
-error:
- BD_WR_LOCK (&_private->lock);
- bd_entry_cleanup ();
- lvm_quit (_private->handle);
- if (_private->vg)
- GF_FREE (_private->vg);
- GF_FREE (_private);
- return -1;
-}
-
-void
-fini (xlator_t *this)
-{
- bd_priv_t *priv = this->private;
- if (!priv)
- return;
- lvm_quit (priv->handle);
- BD_WR_LOCK (&priv->lock);
- bd_entry_cleanup ();
- BD_UNLOCK (&priv->lock);
- GF_FREE (priv->vg);
- this->private = NULL;
- GF_FREE (priv);
- return;
-}
-
-struct xlator_dumpops dumpops = {
- .priv = bd_priv,
- .inode = bd_inode,
-};
-
-struct xlator_fops fops = {
- /* Not supported */
- .readlink = bd_readlink,
- .mknod = bd_mknod,
- .mkdir = bd_mkdir,
- .rmdir = bd_rmdir,
- .link = bd_link,
- .setxattr = bd_setxattr,
- .fsetxattr = bd_fsetxattr,
- .getxattr = bd_getxattr,
- .fgetxattr = bd_fgetxattr,
- .removexattr = bd_removexattr,
- .fremovexattr= bd_fremovexattr,
- .fsyncdir = bd_fsyncdir,
- .lk = bd_lk,
- .inodelk = bd_inodelk,
- .finodelk = bd_finodelk,
- .entrylk = bd_entrylk,
- .fentrylk = bd_fentrylk,
- .rchecksum = bd_rchecksum,
- .xattrop = bd_xattrop,
- .setattr = bd_setattr,
-
- /* Supported */
- .lookup = bd_lookup,
- .opendir = bd_opendir,
- .readdir = bd_readdir,
- .readdirp = bd_readdirp,
- .stat = bd_stat,
- .statfs = bd_statfs,
- .open = bd_open,
- .access = bd_access,
- .flush = bd_flush,
- .readv = bd_readv,
- .fstat = bd_fstat,
- .truncate = bd_truncate,
- .ftruncate = bd_ftruncate,
- .fsync = bd_fsync,
- .writev = bd_writev,
-};
-
-struct xlator_cbks cbks = {
- .releasedir = bd_releasedir,
- .release = bd_release,
-};
-
-struct volume_options options[] = {
- { .key = {"export"},
- .type = GF_OPTION_TYPE_STR},
- { .key = {"device"},
- .type = GF_OPTION_TYPE_STR},
- { .key = {NULL} }
-};
generated by cgit (git 2.34.1) at 2026-02-22 10:37:31 +0000