[PATCH] knfsd: nfsd4: fix open flag passing

Since nfsv4 actually keeps around the file descriptors it gets from open
(instead of just using them for a single read or write operation), we need to
make sure that we can do RDWR opens and not just RDONLY/WRONLY.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index f916b17..423e1ba 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -673,7 +673,10 @@
 		goto out_nfserr;
 
 	if (access & MAY_WRITE) {
-		flags = O_WRONLY|O_LARGEFILE;
+		if (access & MAY_READ)
+			flags = O_RDWR|O_LARGEFILE;
+		else
+			flags = O_WRONLY|O_LARGEFILE;
 
 		DQUOT_INIT(inode);
 	}