From: Eric Sandeen <sandeen@redhat.com>
Date: Thu, 28 Oct 2010 01:30:03 +0000 (-0400)
Subject: ext4: stop looping in ext4_num_dirty_pages when max_pages reached
X-Git-Tag: v2.6.37-rc1~76^2^2~45
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=659c6009ca2e3a01acc9881bafe5f55ef09c965b;p=pandora-kernel.git

ext4: stop looping in ext4_num_dirty_pages when max_pages reached

Today we simply break out of the inner loop when we have accumulated
max_pages; this keeps scanning forwad and doing pagevec_lookup_tag()
in the while (!done) loop, this does potentially a lot of work
with no net effect.

When we have accumulated max_pages, just clean up and return.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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