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authorFrederic Weisbecker <fweisbec@gmail.com>2009-05-08 08:53:52 -0400
committerFrederic Weisbecker <fweisbec@gmail.com>2009-09-14 01:18:20 -0400
commitd6f5b0aa08078c3dabe377d5b1a6077e9c9352d3 (patch)
treeb5d6bd99e007c57a6cd4953368202d99a41141cd /MAINTAINERS
parent09eb47a7c52ad535aafca889e0b936c445c375ce (diff)
kill-the-bkl/reiserfs: factorize the locking in reiserfs_write_end()
reiserfs_write_end() is a hot path in reiserfs. We have two wasteful write lock lock/release inside that can be gathered without changing the code logic. This patch factorizes them out in a single protected section, reducing the number of contentions inside. [ Impact: reduce lock contention in a reiserfs hotpath ] Cc: Jeff Mahoney <jeffm@suse.com> Cc: Chris Mason <chris.mason@oracle.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
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