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authorDave Chinner <dchinner@redhat.com>2015-03-04 20:37:22 +0300
committerJosef Bacik <jbacik@fb.com>2015-08-18 01:39:46 +0300
commit74278da9f70d84d715601fe794567a6d2bfdf078 (patch)
tree49262a88fc42b85bfe4930f5cd7a832d5ba647c6 /fs/internal.h
parentcbedaac63481dea52327127a9f1c60f092bd6b07 (diff)
downloadlinux-74278da9f70d84d715601fe794567a6d2bfdf078.tar.xz
inode: convert inode_sb_list_lock to per-sb
The process of reducing contention on per-superblock inode lists starts with moving the locking to match the per-superblock inode list. This takes the global lock out of the picture and reduces the contention problems to within a single filesystem. This doesn't get rid of contention as the locks still have global CPU scope, but it does isolate operations on different superblocks form each other. Signed-off-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Josef Bacik <jbacik@fb.com> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Christoph Hellwig <hch@lst.de> Tested-by: Dave Chinner <dchinner@redhat.com>
Diffstat (limited to 'fs/internal.h')
-rw-r--r--fs/internal.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/internal.h b/fs/internal.h
index 4d5af583ab03..ee1209c54eb1 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -112,7 +112,6 @@ extern int vfs_open(const struct path *, struct file *, const struct cred *);
/*
* inode.c
*/
-extern spinlock_t inode_sb_list_lock;
extern long prune_icache_sb(struct super_block *sb, struct shrink_control *sc);
extern void inode_add_lru(struct inode *inode);