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reiserfs: eliminate per-super xattr lock

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With the switch to using inode->i_mutex locking during lookups/creation
in the xattr root, the per-super xattr lock is no longer needed.

This patch removes it.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jeff Mahoney
2009-03-30 14:02:35 -04:00
committed by Linus Torvalds
parent 6c17675e1e
commit d984561b32
8 changed files with 74 additions and 151 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/linux/reiserfs_fs.h
-3
View File
@@ -2224,7 +2224,4 @@ int reiserfs_unpack(struct inode *inode, struct file *filp);
#define reiserfs_write_lock( sb ) lock_kernel()
#define reiserfs_write_unlock( sb ) unlock_kernel()
/* xattr stuff */
#define REISERFS_XATTR_DIR_SEM(s) (REISERFS_SB(s)->xattr_dir_sem)
#endif /* _LINUX_REISER_FS_H */
include/linux/reiserfs_fs_sb.h
-3
View File
@@ -403,9 +403,6 @@ struct reiserfs_sb_info {
spinlock_t bitmap_lock; /* this lock on now only used to protect reserved_blocks variable */
struct dentry *priv_root; /* root of /.reiserfs_priv */
struct dentry *xattr_root; /* root of /.reiserfs_priv/.xa */
#ifdef CONFIG_REISERFS_FS_XATTR
struct rw_semaphore xattr_dir_sem;
#endif
int j_errno;
#ifdef CONFIG_QUOTA
char *s_qf_names[MAXQUOTAS];
include/linux/reiserfs_xattr.h
+5 -23
View File
@@ -67,45 +67,27 @@ extern struct reiserfs_xattr_handler user_handler;
extern struct reiserfs_xattr_handler trusted_handler;
extern struct reiserfs_xattr_handler security_handler;
static inline void reiserfs_write_lock_xattrs(struct super_block *sb)
{
down_write(&REISERFS_XATTR_DIR_SEM(sb));
}
static inline void reiserfs_write_unlock_xattrs(struct super_block *sb)
{
up_write(&REISERFS_XATTR_DIR_SEM(sb));
}
static inline void reiserfs_read_lock_xattrs(struct super_block *sb)
{
down_read(&REISERFS_XATTR_DIR_SEM(sb));
}
static inline void reiserfs_read_unlock_xattrs(struct super_block *sb)
{
up_read(&REISERFS_XATTR_DIR_SEM(sb));
}
static inline void reiserfs_write_lock_xattr_i(struct inode *inode)
{
down_write(&REISERFS_I(inode)->xattr_sem);
down_write(&REISERFS_I(inode)->i_xattr_sem);
}
static inline void reiserfs_write_unlock_xattr_i(struct inode *inode)
{
up_write(&REISERFS_I(inode)->xattr_sem);
up_write(&REISERFS_I(inode)->i_xattr_sem);
}
static inline void reiserfs_read_lock_xattr_i(struct inode *inode)
{
down_read(&REISERFS_I(inode)->xattr_sem);
down_read(&REISERFS_I(inode)->i_xattr_sem);
}
static inline void reiserfs_read_unlock_xattr_i(struct inode *inode)
{
up_read(&REISERFS_I(inode)->xattr_sem);
up_read(&REISERFS_I(inode)->i_xattr_sem);
}
static inline void reiserfs_init_xattr_rwsem(struct inode *inode)
{
init_rwsem(&REISERFS_I(inode)->xattr_sem);
init_rwsem(&REISERFS_I(inode)->i_xattr_sem);
}
#else