From: Dmitry Monakhov <dmonakhov@openvz.org>
Date: Tue, 2 Dec 2014 21:09:50 +0000 (-0500)
Subject: ext4: prevent fsreentrance deadlock for inline_data
X-Git-Tag: omap-for-v3.20/drop-legacy-3517~113^2~3
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5cc28a9eaab21ce7ded7845b32e2eafc4bbeb175;p=pandora-kernel.git

ext4: prevent fsreentrance deadlock for inline_data

ext4_da_convert_inline_data_to_extent() invokes
grab_cache_page_write_begin().  grab_cache_page_write_begin performs
memory allocation, so fs-reentrance should be prohibited because we
are inside journal transaction.

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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