[PATCH] nfsd: set OPEN_RESULT_LOCKTYPE_POSIX in open()

We should set the OPEN_RESULT_LOCKTYPE_POSIX flag in the return to open, to
indicate that we support locking.
Signed-off-by: Andy Adamson <andros@citi.umich.edu>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/nfsd/nfs4state.c

@@ -1384,7 +1384,7 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf
 	/*
 	* To finish the open response, we just need to set the rflags.
 	*/
-	open->op_rflags = 0;
+	open->op_rflags = NFS4_OPEN_RESULT_LOCKTYPE_POSIX;
 	if (!open->op_stateowner->so_confirmed)
 		open->op_rflags |= NFS4_OPEN_RESULT_CONFIRM;
 

include/linux/nfs4.h

@@ -35,6 +35,7 @@
 #define NFS4_FH_VOL_RENAME		0x0008
 
 #define NFS4_OPEN_RESULT_CONFIRM 0x0002
+#define NFS4_OPEN_RESULT_LOCKTYPE_POSIX 0x0004
 
 #define NFS4_SHARE_ACCESS_READ	0x0001
 #define NFS4_SHARE_ACCESS_WRITE	0x0002