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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 <[email protected]> Signed-off-by: Josef Bacik <[email protected]> Reviewed-by: Jan Kara <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Tested-by: Dave Chinner <[email protected]>
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Dave Chinner
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Josef Bacik
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Aug 17, 2015
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