From: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue, 11 Jun 2013 04:34:36 +0000 (+0400)
Subject: allow the temp files created by open() to be linked to
X-Git-Tag: omap-for-v3.11/fixes-for-merge-window~42^2~56
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f4e0c30c191f87851c4a53454abb55ee276f4a7e;p=pandora-kernel.git

allow the temp files created by open() to be linked to

O_TMPFILE | O_CREAT => linkat() with AT_SYMLINK_FOLLOW and /proc/self/fd/<n>
as oldpath (i.e. flink()) will create a link
O_TMPFILE | O_CREAT | O_EXCL => ENOENT on attempt to link those guys

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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