From: Steve French <smfrench@gmail.com>
Date: Sat, 8 Feb 2014 02:45:12 +0000 (-0600)
Subject: [CIFS] clean up page array when uncached write send fails
X-Git-Tag: v3.14-rc3~38^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4a5c80d7b5615be8098f9d5da97d166afc318abc;p=pandora-kernel.git

[CIFS] clean up page array when uncached write send fails

In the event that a send fails in an uncached write, or we end up
needing to reissue it (-EAGAIN case), we'll kfree the wdata but
the pages currently leak.

Fix this by adding a new kref release routine for uncached writedata
that releases the pages, and have the uncached codepaths use that.

[original patch by Jeff modified to fix minor formatting problems]

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <smfrench@gmail.com>
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