inode: convert inode_sb_list_lock to per-sb

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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>

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Dave Chinner 2015-03-04 12:37:22 -05:00 • committed by Josef Bacik

parent cbedaac634

commit 74278da9f7

10 changed files with 57 additions and 54 deletions

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5

include/linux/fs.h

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4

include/linux/fsnotify_backend.h

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