diff options
Diffstat (limited to 'libglusterfs/src/inode.h')
| -rw-r--r-- | libglusterfs/src/inode.h | 219 |
1 files changed, 150 insertions, 69 deletions
diff --git a/libglusterfs/src/inode.h b/libglusterfs/src/inode.h index e71c6d899..a88976265 100644 --- a/libglusterfs/src/inode.h +++ b/libglusterfs/src/inode.h @@ -1,20 +1,11 @@ /* - Copyright (c) 2007-2009 Z RESEARCH, Inc. <http://www.zresearch.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. */ #ifndef _INODE_H @@ -28,6 +19,8 @@ #include <stdint.h> #include <sys/types.h> +#define DEFAULT_INODE_MEMPOOL_ENTRIES 32 * 1024 +#define INODE_PATH_FMT "<gfid:%s>" struct _inode_table; typedef struct _inode_table inode_table_t; @@ -39,6 +32,8 @@ typedef struct _dentry dentry_t; #include "list.h" #include "xlator.h" +#include "iatt.h" +#include "uuid.h" struct _inode_table { @@ -57,43 +52,60 @@ struct _inode_table { uint32_t lru_size; /* count of inodes in lru list */ struct list_head purge; /* list of inodes to be purged soon */ uint32_t purge_size; /* count of inodes in purge list */ + + struct mem_pool *inode_pool; /* memory pool for inodes */ + struct mem_pool *dentry_pool; /* memory pool for dentrys */ + struct mem_pool *fd_mem_pool; /* memory pool for fd_t */ + int ctxcount; /* number of slots in inode->ctx */ }; struct _dentry { struct list_head inode_list; /* list of dentries of inode */ struct list_head hash; /* hash table pointers */ - struct list_head parent_list; /* list of dentries under the parent */ inode_t *inode; /* inode of this directory entry */ char *name; /* name of the directory entry */ inode_t *parent; /* directory of the entry */ }; -//#define ZR_INODE_CTX_VALUE_LEN 2 struct _inode_ctx { - uint64_t key; - uint64_t value; - //uint64_t value[ZR_INODE_CTX_VALUE_LEN]; + union { + uint64_t key; + xlator_t *xl_key; + }; + /* if value1 is 0, then field is not set.. */ + union { + uint64_t value1; + void *ptr1; + }; + /* if value2 is 0, then field is not set.. */ + union { + uint64_t value2; + void *ptr2; + }; }; struct _inode { - inode_table_t *table; /* the table this inode belongs to */ - gf_lock_t lock; - uint64_t nlookup; - uint64_t generation; - uint32_t ref; /* reference count on this inode */ - ino_t ino; /* inode number in the storage (persistent) */ - mode_t st_mode; /* what kind of file */ - struct list_head fd_list; /* list of open files on this inode */ - struct list_head dentry_list; /* list of directory entries for this inode */ - struct list_head child_list; /* list of directory entries under this inode */ - struct list_head hash; /* hash table pointers */ - struct list_head list; /* active/lru/purge */ - - struct _inode_ctx *_ctx; /* replacement for dict_t *(inode->ctx) */ + inode_table_t *table; /* the table this inode belongs to */ + uuid_t gfid; + gf_lock_t lock; + uint64_t nlookup; + uint32_t fd_count; /* Open fd count */ + uint32_t ref; /* reference count on this inode */ + ia_type_t ia_type; /* what kind of file */ + struct list_head fd_list; /* list of open files on this inode */ + struct list_head dentry_list; /* list of directory entries for this inode */ + struct list_head hash; /* hash table pointers */ + struct list_head list; /* active/lru/purge */ + + struct _inode_ctx *_ctx; /* replacement for dict_t *(inode->ctx) */ }; +#define UUID0_STR "00000000-0000-0000-0000-000000000000" +#define GFID_STR_PFX "<gfid:" UUID0_STR ">" +#define GFID_STR_PFX_LEN (sizeof (GFID_STR_PFX) - 1) + inode_table_t * inode_table_new (size_t lru_limit, xlator_t *xl); @@ -101,19 +113,14 @@ inode_t * inode_new (inode_table_t *table); inode_t * -inode_search (inode_table_t *table, ino_t ino, const char *name); - -int inode_link (inode_t *inode, inode_t *parent, - const char *name, struct stat *stbuf); + const char *name, struct iatt *stbuf); void -inode_unlink (inode_t *inode, - inode_t *parent, - const char *name); +inode_unlink (inode_t *inode, inode_t *parent, const char *name); inode_t * -inode_parent (inode_t *inode, ino_t par, const char *name); +inode_parent (inode_t *inode, uuid_t pargfid, const char *name); inode_t * inode_ref (inode_t *inode); @@ -125,46 +132,120 @@ int inode_lookup (inode_t *inode); int -inode_forget (inode_t *inode, - uint64_t nlookup); +inode_forget (inode_t *inode, uint64_t nlookup); int -inode_rename (inode_table_t *table, - inode_t *olddir, - const char *oldname, - inode_t *newdir, - const char *newname, - inode_t *inode, - struct stat *stbuf); +inode_invalidate(inode_t *inode); +int +inode_rename (inode_table_t *table, inode_t *olddir, const char *oldname, + inode_t *newdir, const char *newname, + inode_t *inode, struct iatt *stbuf); -int32_t -inode_path (inode_t *inode, - const char *name, - char **bufp); +inode_t * +inode_grep (inode_table_t *table, inode_t *parent, const char *name); + +int +inode_grep_for_gfid (inode_table_t *table, inode_t *parent, const char *name, + uuid_t gfid, ia_type_t *type); inode_t * -inode_from_path (inode_table_t *table, - const char *path); +inode_find (inode_table_t *table, uuid_t gfid); -dentry_t * -dentry_search_for_inode (inode_t *inode, - ino_t par, - const char *name); +int +inode_path (inode_t *inode, const char *name, char **bufp); int -__inode_ctx_put (inode_t *inode, xlator_t *xlator, uint64_t value); +__inode_path (inode_t *inode, const char *name, char **bufp); +inode_t * +inode_from_path (inode_table_t *table, const char *path); + +inode_t * +inode_resolve (inode_table_t *table, char *path); + +/* deal with inode ctx's both values */ + +int +inode_ctx_set2 (inode_t *inode, xlator_t *xlator, uint64_t *value1, + uint64_t *value2); +int +__inode_ctx_set2 (inode_t *inode, xlator_t *xlator, uint64_t *value1, + uint64_t *value2); + +int +inode_ctx_get2 (inode_t *inode, xlator_t *xlator, uint64_t *value1, + uint64_t *value2); int -inode_ctx_put (inode_t *inode, xlator_t *xlator, uint64_t value); +__inode_ctx_get2 (inode_t *inode, xlator_t *xlator, uint64_t *value1, + uint64_t *value2); int -__inode_ctx_get (inode_t *inode, xlator_t *xlator, uint64_t *value); +inode_ctx_del2 (inode_t *inode, xlator_t *xlator, uint64_t *value1, + uint64_t *value2); + +int +inode_ctx_reset2 (inode_t *inode, xlator_t *xlator, uint64_t *value1, + uint64_t *value2); + +/* deal with inode ctx's 1st value */ + +int +inode_ctx_set0 (inode_t *inode, xlator_t *xlator, uint64_t *value1); + +int +__inode_ctx_set0 (inode_t *inode, xlator_t *xlator, uint64_t *value1); + +int +inode_ctx_get0 (inode_t *inode, xlator_t *xlator, uint64_t *value1); +int +__inode_ctx_get0 (inode_t *inode, xlator_t *xlator, uint64_t *value1); + +int +inode_ctx_reset0 (inode_t *inode, xlator_t *xlator, uint64_t *value1); + +/* deal with inode ctx's 2st value */ + +int +inode_ctx_set1 (inode_t *inode, xlator_t *xlator, uint64_t *value2); + +int +__inode_ctx_set1 (inode_t *inode, xlator_t *xlator, uint64_t *value2); + +int +inode_ctx_get1 (inode_t *inode, xlator_t *xlator, uint64_t *value2); +int +__inode_ctx_get1 (inode_t *inode, xlator_t *xlator, uint64_t *value2); + +int +inode_ctx_reset1 (inode_t *inode, xlator_t *xlator, uint64_t *value2); + + +static inline int +__inode_ctx_put(inode_t *inode, xlator_t *this, uint64_t v) +{ + return __inode_ctx_set0 (inode, this, &v); +} + +static inline int +inode_ctx_put(inode_t *inode, xlator_t *this, uint64_t v) +{ + return inode_ctx_set0 (inode, this, &v); +} + +#define __inode_ctx_set(i,x,v_p) __inode_ctx_set0(i,x,v_p) + +#define inode_ctx_set(i,x,v_p) inode_ctx_set0(i,x,v_p) + +#define inode_ctx_reset(i,x,v) inode_ctx_reset0(i,x,v) + +#define __inode_ctx_get(i,x,v) __inode_ctx_get0(i,x,v) + +#define inode_ctx_get(i,x,v) inode_ctx_get0(i,x,v) -int -inode_ctx_get (inode_t *inode, xlator_t *xlator, uint64_t *value); +#define inode_ctx_del(i,x,v) inode_ctx_del2(i,x,v,0) -int -inode_ctx_del (inode_t *inode, xlator_t *xlator, uint64_t *value); +gf_boolean_t +__is_root_gfid (uuid_t gfid); #endif /* _INODE_H */ |