tree 14092479a77973596686554b3159d4630df6a6a4
parent 9179746652faf0aba07b8b7f770dcf29892a24c6
author Al Viro <viro@zeniv.linux.org.uk> 1299999058 -0500
committer Al Viro <viro@zeniv.linux.org.uk> 1300058486 -0400

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>