From: Sage Weil <sage@inktank.com>
Date: Wed, 15 Aug 2012 20:30:12 +0000 (-0700)
Subject: vfs: fix propagation of atomic_open create error on negative dentry
X-Git-Tag: v3.6-rc3~34^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=62b2ce964bb901f00a480104bd35a2e1f8d2cf58;p=pandora-kernel.git

vfs: fix propagation of atomic_open create error on negative dentry

If ->atomic_open() returns -ENOENT, we take care to return the create
error (e.g., EACCES), if any.  Do the same when ->atomic_open() returns 1
and provides a negative dentry.

This fixes a regression where an unprivileged open O_CREAT fails with
ENOENT instead of EACCES, introduced with the new atomic_open code.  It
is tested by the open/08.t test in the pjd posix test suite, and was
observed on top of fuse (backed by ceph-fuse).

Signed-off-by: Sage Weil <sage@inktank.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---

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