From: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue, 9 Jun 2009 00:46:54 +0000 (-0400)
Subject: reiserfs: minimal fix for ACL caching
X-Git-Tag: v2.6.31-rc1~13^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e68888bcb60ccba4dc21df9f2d8cd7325b64dce7;p=pandora-kernel.git

reiserfs: minimal fix for ACL caching

reiserfs uses NULL as "unknown" and ERR_PTR(-ENODATA) as "no ACL";
several codepaths store the former instead of the latter.

All those codepaths go through iset_acl() and all cases when it's
called with NULL acl are for the second variety, so the minimal
fix is to teach iset_acl() to deal with that.

Proper fix is to switch to more usual conventions and avoid back
and forth between internally used ERR_PTR(-ENODATA) and NULL
expected by the rest of the kernel.

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