From: Miklos Szeredi <miklos@szeredi.hu>
Date: Fri, 23 Jun 2006 09:05:10 +0000 (-0700)
Subject: [PATCH] locks: don't do unnecessary allocations
X-Git-Tag: v2.6.18-rc1~1081^2~77
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=39005d022ad221b76dc2de0ac62ef475a796433b;p=pandora-kernel.git

[PATCH] locks: don't do unnecessary allocations

posix_lock_file() always allocates new locks in advance, even if it's easy to
determine that no allocations will be needed.

Optimize these cases:

 - FL_ACCESS flag is set

 - Unlocking the whole range

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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