From: Nikolay Borisov <kernel@kyup.com>
Date: Thu, 2 Jul 2015 05:34:07 +0000 (-0400)
Subject: ext4: avoid deadlocks in the writeback path by using sb_getblk_gfp
X-Git-Tag: v3.2.71~46
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d612a04deae8a70636a2fced4fdd0bb94dfb6219;p=pandora-kernel.git

ext4: avoid deadlocks in the writeback path by using sb_getblk_gfp

commit c45653c341f5c8a0ce19c8f0ad4678640849cb86 upstream.

Switch ext4 to using sb_getblk_gfp with GFP_NOFS added to fix possible
deadlocks in the page writeback path.

Signed-off-by: Nikolay Borisov <kernel@kyup.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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