From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 13 Mar 2011 06:50:58 +0000 (-0500)
Subject: compat breakage in preadv() and pwritev()
X-Git-Tag: v2.6.39-rc1~514^2~56
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=586ce098a23b6ab7383df853a84ae3d48dc889aa;p=pandora-kernel.git

compat breakage in preadv() and pwritev()

Fix for a dumb preadv()/pwritev() compat bug - unlike the native
variants, compat_... ones forget to check FMODE_P{READ,WRITE}, so e.g.
on pipe the native preadv() will fail with -ESPIPE and compat one will
act as readv() and succeed.  Not critical, but it's a clear bug with trivial
fix.

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