From: Yan, Zheng <zyan@redhat.com>
Date: Wed, 1 Jul 2015 09:03:23 +0000 (+0800)
Subject: ceph: invalidate dirty pages after forced umount
X-Git-Tag: omap-for-v4.3/fixes-rc1~31^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a341d4df87487ae68189e0be869c39a2b0cb9aaa;p=pandora-kernel.git

ceph: invalidate dirty pages after forced umount

After forced umount, ceph_writepages_start() skips flushing dirty
pages. To make sure inode's reference count get dropped to zero,
we need to invalidate dirty pages.

Signed-off-by: Yan, Zheng <zyan@redhat.com>
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