From: Al Viro <viro@ZenIV.linux.org.uk>
Date: Sun, 13 Mar 2011 23:24:46 +0000 (+0000)
Subject: compat breakage in preadv() and pwritev()
X-Git-Tag: v2.6.38~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c44ed965be7a84afaa07543c04eb97a5dfe93422;p=pandora-kernel.git

compat breakage in preadv() and pwritev()

Fix for a dumb preadv()/pwritev() compat bug - unlike the native
variants, the 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, so IMO it's OK for
-final.

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