From: Theodore Ts'o <tytso@mit.edu>
Date: Mon, 8 Nov 2010 18:45:33 +0000 (-0500)
Subject: ext4: fix potential race when freeing ext4_io_page structures
X-Git-Tag: v2.6.37-rc2~75^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=83668e7141c7a0aa4035bde94344b81f9cf966ab;p=pandora-kernel.git

ext4: fix potential race when freeing ext4_io_page structures

Use an atomic_t and make sure we don't free the structure while we
might still be submitting I/O for that page.

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