From: Michal Hocko <mhocko@suse.cz>
Date: Sun, 5 Jul 2015 16:33:44 +0000 (-0400)
Subject: ext4: replace open coded nofail allocation in ext4_free_blocks()
X-Git-Tag: v3.2.71~41
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1de7ce2b94fd02cba8e2fb0b2b6f341c5f920ce3;p=pandora-kernel.git

ext4: replace open coded nofail allocation in ext4_free_blocks()

commit 7444a072c387a93ebee7066e8aee776954ab0e41 upstream.

ext4_free_blocks is looping around the allocation request and mimics
__GFP_NOFAIL behavior without any allocation fallback strategy. Let's
remove the open coded loop and replace it with __GFP_NOFAIL. Without the
flag the allocator has no way to find out never-fail requirement and
cannot help in any way.

Signed-off-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
[bwh: Backported to 3.2:
 - Adjust context
 - s/ext4_free_data_cachep/ext4_free_ext_cachep/]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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