From: Theodore Ts'o <tytso@mit.edu>
Date: Thu, 5 Mar 2009 00:09:10 +0000 (-0500)
Subject: ext4: Use atomic_t's in struct flex_groups
X-Git-Tag: v2.6.30-rc1~416^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9f24e4208f7e;p=pandora-kernel.git

ext4: Use atomic_t's in struct flex_groups

Reduce pressure on the sb_bgl_lock family of locks by using atomic_t's
to track the number of free blocks and inodes in each flex_group.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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