From: Liu Bo <bo.li.liu@oracle.com>
Date: Mon, 12 May 2014 04:47:36 +0000 (+0800)
Subject: Btrfs: mark mapping with error flag to report errors to userspace
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~54^2~41
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5dca6eea91653e9949ce6eb9e9acab6277e2f2c4;p=pandora-kernel.git

Btrfs: mark mapping with error flag to report errors to userspace

According to commit 865ffef3797da2cac85b3354b5b6050dc9660978
(fs: fix fsync() error reporting),
it's not stable to just check error pages because pages can be
truncated or invalidated, we should also mark mapping with error
flag so that a later fsync can catch the error.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <clm@fb.com>
---

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