From: Mark Fasheh <mark.fasheh@oracle.com>
Date: Mon, 14 May 2007 18:38:51 +0000 (-0700)
Subject: ocfs2: trylock in ocfs2_readpage()
X-Git-Tag: v2.6.22-rc3~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e9dfc0b2bc42761410e8db6c252c6c5889e178b8;p=pandora-kernel.git

ocfs2: trylock in ocfs2_readpage()

Similarly to the page lock / cluster lock inversion in ocfs2_readpage, we
can deadlock on ip_alloc_sem. We can down_read_trylock() instead and just
return AOP_TRUNCATED_PAGE if the operation fails.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
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