From: Frank Filz <ffilzlnx@us.ibm.com>
Date: Fri, 14 Aug 2009 22:02:30 +0000 (-0700)
Subject: nfsd: Fix unnecessary deny bits in NFSv4 ACL
X-Git-Tag: firefly_0821_release~12692^2~40
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=55bb55dca0cecac2fb7b8c743db41361c011c8a8;p=firefly-linux-kernel-4.4.55.git

nfsd: Fix unnecessary deny bits in NFSv4 ACL

The group deny entries end up denying tcy even though tcy was just
allowed by the allow entry. This appears to be due to:
	ace->access_mask = mask_from_posix(deny, flags);
instead of:
	ace->access_mask = deny_mask_from_posix(deny, flags);

Denying a previously allowed bit has no effect, so this shouldn't affect
behavior, but it's ugly.

Signed-off-by: Frank Filz <ffilzlnx@us.ibm.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
---

diff --git a/fs/nfsd/nfs4acl.c b/fs/nfsd/nfs4acl.c
index 54b8b4140c8f..5320c2b6c7a6 100644
--- a/fs/nfsd/nfs4acl.c
+++ b/fs/nfsd/nfs4acl.c
@@ -335,7 +335,7 @@ _posix_to_nfsv4_one(struct posix_acl *pacl, struct nfs4_acl *acl,
 		if (deny) {
 			ace->type = NFS4_ACE_ACCESS_DENIED_ACE_TYPE;
 			ace->flag = eflag | NFS4_ACE_IDENTIFIER_GROUP;
-			ace->access_mask = mask_from_posix(deny, flags);
+			ace->access_mask = deny_mask_from_posix(deny, flags);
 			ace->whotype = NFS4_ACL_WHO_NAMED;
 			ace->who = pa->e_id;
 			ace++;