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authorAnand V. Avati <avati@blackhole.gluster.com>2009-10-18 13:35:14 +0000
committerAnand V. Avati <avati@dev.gluster.com>2009-10-18 12:15:42 -0700
commit7e831d735e3746fa9e6ec2e797e1a7f68ac5c148 (patch)
treeb1d45d6cb1d8c683f976ff1e0c8a0531475acddc /libglusterfs/src/inode.h
parentb2c0c6c713a00631e658c7faafe51d0c941d65ef (diff)
inode: API changes for generation number support
Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 315 (generation number support) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=315
Diffstat (limited to 'libglusterfs/src/inode.h')
-rw-r--r--libglusterfs/src/inode.h71
1 files changed, 34 insertions, 37 deletions
diff --git a/libglusterfs/src/inode.h b/libglusterfs/src/inode.h
index a64573b9848..d1486ca3165 100644
--- a/libglusterfs/src/inode.h
+++ b/libglusterfs/src/inode.h
@@ -57,13 +57,17 @@ 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 list_head attic; /* list of inodes which do not have the latest generation
+ number. inode_t's @hash is linked with @attic. It is
+ otherwise linked with @inode_hash */
+ uint32_t attic_size;
};
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 */
@@ -77,20 +81,20 @@ struct _inode_ctx {
};
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 */
+ gf_lock_t lock;
+ uint64_t nlookup;
+ uint64_t generation;
+ uint32_t in_attic; /* whether @hash is linked with @inode_hash or @attic */
+ 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 hash; /* hash table pointers */
+ struct list_head list; /* active/lru/purge */
+
+ struct _inode_ctx *_ctx; /* replacement for dict_t *(inode->ctx) */
};
@@ -103,14 +107,12 @@ inode_new (inode_table_t *table);
inode_t *
inode_search (inode_table_t *table, ino_t ino, const char *name);
-int
+inode_t *
inode_link (inode_t *inode, inode_t *parent,
const char *name, struct stat *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);
@@ -125,32 +127,27 @@ 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_rename (inode_table_t *table, inode_t *olddir, const char *oldname,
+ inode_t *newdir, const char *newname,
+ inode_t *inode, struct stat *stbuf);
+inode_t *
+inode_grep (inode_table_t *table, inode_t *parent, const char *name);
-int32_t
-inode_path (inode_t *inode,
- const char *name,
- char **bufp);
+inode_t *
+inode_get (inode_table_t *table, ino_t ino, uint64_t gen);
+
+int
+inode_path (inode_t *inode, const char *name, char **bufp);
inode_t *
-inode_from_path (inode_table_t *table,
- const char *path);
+inode_from_path (inode_table_t *table, const char *path);
dentry_t *
-dentry_search_for_inode (inode_t *inode,
- ino_t par,
- const char *name);
+dentry_search_for_inode (inode_t *inode, ino_t par, const char *name);
int
__inode_ctx_put (inode_t *inode, xlator_t *xlator, uint64_t value);