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| author | Dave Chinner <dchinner@redhat.com> | 2015-03-04 12:37:22 -0500 |
|---|---|---|
| committer | Josef Bacik <jbacik@fb.com> | 2015-08-17 18:39:46 -0400 |
| commit | 74278da9f70d84d715601fe794567a6d2bfdf078 (patch) | |
| tree | 49262a88fc42b85bfe4930f5cd7a832d5ba647c6 /include/linux/fsnotify_backend.h | |
| parent | cbedaac63481dea52327127a9f1c60f092bd6b07 (diff) | |
| download | blackbird-op-linux-74278da9f70d84d715601fe794567a6d2bfdf078.tar.gz blackbird-op-linux-74278da9f70d84d715601fe794567a6d2bfdf078.zip | |
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 'include/linux/fsnotify_backend.h')
| -rw-r--r-- | include/linux/fsnotify_backend.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h index 65a517dd32f7..0390ee69c439 100644 --- a/include/linux/fsnotify_backend.h +++ b/include/linux/fsnotify_backend.h @@ -357,7 +357,7 @@ extern void fsnotify_clear_marks_by_group_flags(struct fsnotify_group *group, un extern void fsnotify_clear_marks_by_group(struct fsnotify_group *group); extern void fsnotify_get_mark(struct fsnotify_mark *mark); extern void fsnotify_put_mark(struct fsnotify_mark *mark); -extern void fsnotify_unmount_inodes(struct list_head *list); +extern void fsnotify_unmount_inodes(struct super_block *sb); /* put here because inotify does some weird stuff when destroying watches */ extern void fsnotify_init_event(struct fsnotify_event *event, @@ -393,7 +393,7 @@ static inline u32 fsnotify_get_cookie(void) return 0; } -static inline void fsnotify_unmount_inodes(struct list_head *list) +static inline void fsnotify_unmount_inodes(struct super_block *sb) {} #endif /* CONFIG_FSNOTIFY */ |
