PERFORCE change 146809 for review

[Edward Tomasz Napierala]

http://perforce.freebsd.org/chv.cgi?CH=146809

Change 146809 by trasz at trasz_traszkan on 2008/08/07 00:00:01

	Fix a bug where mkdir in a directory that has immutable flag set
	would succeed.
	
	This was happening, because with granularity support, permission
	checked during mkdir is VAPPEND, not VWRITE.
	
	With this fix, UFS passes fstest again.

Affected files ...

.. //depot/projects/soc2008/trasz_nfs4acl/sys/ufs/ufs/ufs_vnops.c#9 edit

Differences ...

==== //depot/projects/soc2008/trasz_nfs4acl/sys/ufs/ufs/ufs_vnops.c#9 (text+ko) ====

@@ -320,7 +320,7 @@
 	 * unless the file is a socket, fifo, or a block or
 	 * character device resident on the filesystem.
 	 */
-	if (mode & VWRITE) {
+	if (mode & (VWRITE | VAPPEND)) {
 		switch (vp->v_type) {
 		case VDIR:
 		case VLNK:
@@ -334,7 +334,7 @@
 	}
 
 	/* If immutable bit set, nobody gets to write it. */
-	if ((mode & VWRITE) && (ip->i_flags & (IMMUTABLE | SF_SNAPSHOT)))
+	if ((mode & (VWRITE | VAPPEND)) && (ip->i_flags & (IMMUTABLE | SF_SNAPSHOT)))
 		return (EPERM);
 
 #ifdef UFS_ACL