From: Dave Young <hidave.darkstar@gmail.com>
Date: Thu, 20 Mar 2008 00:01:01 +0000 (-0700)
Subject: zisofs: fix readpage() outside i_size
X-Git-Tag: v2.6.25-rc7~76
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=08ca0db8aa2db4ddcf487d46d85dc8ffb22162cc;p=pandora-kernel.git

zisofs: fix readpage() outside i_size

A read request outside i_size will be handled in do_generic_file_read().  So
we just return 0 to avoid getting -EIO as normal reading, let
do_generic_file_read do the rest.

At the same time we need unlock the page to avoid system stuck.

Fixes http://bugzilla.kernel.org/show_bug.cgi?id=10227

Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Acked-by: Jan Kara <jack@suse.cz>
Report-by: Christian Perle <chris@linuxinfotag.de>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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