kill-the-bkl/reiserfs: factorize the locking in reiserfs_write_end()

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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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This commit is contained in:

Frederic Weisbecker 2009-05-08 14:53:52 +02:00

parent 09eb47a7c5

commit d6f5b0aa08

1 changed files with 15 additions and 10 deletions

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fs/reiserfs/inode.c

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