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authorNick Piggin <nickpiggin@yahoo.com.au>2005-07-07 20:56:56 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2005-07-07 21:23:45 -0400
commita39722034ae37f80a1803bf781fe3fe1b03e20bc (patch)
treefb7ef719d745e28678d73f884108f4cb2ef79171 /drivers/oprofile
parentd6afe27bfff30fbec2cca6ad5626c22f4094d770 (diff)
[PATCH] page_uptodate locking scalability
Use a bit spin lock in the first buffer of the page to synchronise asynch IO buffer completions, instead of the global page_uptodate_lock, which is showing some scalabilty problems. Signed-off-by: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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