NFSv4: Convert the open and close ops to use fmode

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

fs/nfs/inode.c

@@ -592,7 +592,7 @@ static void nfs_file_set_open_context(struct file *filp, struct nfs_open_context
 /*
  * Given an inode, search for an open context with the desired characteristics
  */
-struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, int mode)
+struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, fmode_t mode)
 {
 	struct nfs_inode *nfsi = NFS_I(inode);
 	struct nfs_open_context *pos, *ctx = NULL;

fs/nfs/nfs4_fs.h

@@ -161,7 +161,7 @@ struct nfs4_state {
 	unsigned int n_rdonly;		/* Number of read-only references */
 	unsigned int n_wronly;		/* Number of write-only references */
 	unsigned int n_rdwr;		/* Number of read/write references */
-	int state;			/* State on the server (R,W, or RW) */
+	fmode_t state;			/* State on the server (R,W, or RW) */
 	atomic_t count;
 };
 
@@ -223,9 +223,9 @@ extern struct nfs4_state_owner * nfs4_get_state_owner(struct nfs_server *, struc
 extern void nfs4_put_state_owner(struct nfs4_state_owner *);
 extern struct nfs4_state * nfs4_get_open_state(struct inode *, struct nfs4_state_owner *);
 extern void nfs4_put_open_state(struct nfs4_state *);
-extern void nfs4_close_state(struct path *, struct nfs4_state *, mode_t);
-extern void nfs4_close_sync(struct path *, struct nfs4_state *, mode_t);
-extern void nfs4_state_set_mode_locked(struct nfs4_state *, mode_t);
+extern void nfs4_close_state(struct path *, struct nfs4_state *, fmode_t);
+extern void nfs4_close_sync(struct path *, struct nfs4_state *, fmode_t);
+extern void nfs4_state_set_mode_locked(struct nfs4_state *, fmode_t);
 extern void nfs4_schedule_state_recovery(struct nfs_client *);
 extern void nfs4_schedule_state_manager(struct nfs_client *);
 extern int nfs4_state_mark_reclaim_nograce(struct nfs_client *clp, struct nfs4_state *state);

fs/nfs/nfs4state.c

@@ -363,18 +363,18 @@ nfs4_alloc_open_state(void)
 }
 
 void
-nfs4_state_set_mode_locked(struct nfs4_state *state, mode_t mode)
+nfs4_state_set_mode_locked(struct nfs4_state *state, fmode_t fmode)
 {
-	if (state->state == mode)
+	if (state->state == fmode)
 		return;
 	/* NB! List reordering - see the reclaim code for why.  */
-	if ((mode & FMODE_WRITE) != (state->state & FMODE_WRITE)) {
-		if (mode & FMODE_WRITE)
+	if ((fmode & FMODE_WRITE) != (state->state & FMODE_WRITE)) {
+		if (fmode & FMODE_WRITE)
 			list_move(&state->open_states, &state->owner->so_states);
 		else
 			list_move_tail(&state->open_states, &state->owner->so_states);
 	}
-	state->state = mode;
+	state->state = fmode;
 }
 
 static struct nfs4_state *
@@ -454,16 +454,16 @@ void nfs4_put_open_state(struct nfs4_state *state)
 /*
  * Close the current file.
  */
-static void __nfs4_close(struct path *path, struct nfs4_state *state, mode_t mode, int wait)
+static void __nfs4_close(struct path *path, struct nfs4_state *state, fmode_t fmode, int wait)
 {
 	struct nfs4_state_owner *owner = state->owner;
 	int call_close = 0;
-	int newstate;
+	fmode_t newstate;
 
 	atomic_inc(&owner->so_count);
 	/* Protect against nfs4_find_state() */
 	spin_lock(&owner->so_lock);
-	switch (mode & (FMODE_READ | FMODE_WRITE)) {
+	switch (fmode & (FMODE_READ | FMODE_WRITE)) {
 		case FMODE_READ:
 			state->n_rdonly--;
 			break;
@@ -498,14 +498,14 @@ static void __nfs4_close(struct path *path, struct nfs4_state *state, mode_t mod
 		nfs4_do_close(path, state, wait);
 }
 
-void nfs4_close_state(struct path *path, struct nfs4_state *state, mode_t mode)
+void nfs4_close_state(struct path *path, struct nfs4_state *state, fmode_t fmode)
 {
-	__nfs4_close(path, state, mode, 0);
+	__nfs4_close(path, state, fmode, 0);
 }
 
-void nfs4_close_sync(struct path *path, struct nfs4_state *state, mode_t mode)
+void nfs4_close_sync(struct path *path, struct nfs4_state *state, fmode_t fmode)
 {
-	__nfs4_close(path, state, mode, 1);
+	__nfs4_close(path, state, fmode, 1);
 }
 
 /*

fs/nfs/nfs4xdr.c

@@ -953,12 +953,12 @@ static int encode_lookup(struct xdr_stream *xdr, const struct qstr *name)
 	return 0;
 }
 
-static void encode_share_access(struct xdr_stream *xdr, int open_flags)
+static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode)
 {
 	__be32 *p;
 
 	RESERVE_SPACE(8);
-	switch (open_flags & (FMODE_READ|FMODE_WRITE)) {
+	switch (fmode & (FMODE_READ|FMODE_WRITE)) {
 		case FMODE_READ:
 			WRITE32(NFS4_SHARE_ACCESS_READ);
 			break;
@@ -969,7 +969,7 @@ static void encode_share_access(struct xdr_stream *xdr, int open_flags)
 			WRITE32(NFS4_SHARE_ACCESS_BOTH);
 			break;
 		default:
-			BUG();
+			WRITE32(0);
 	}
 	WRITE32(0);		/* for linux, share_deny = 0 always */
 }
@@ -984,7 +984,7 @@ static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_opena
 	RESERVE_SPACE(8);
 	WRITE32(OP_OPEN);
 	WRITE32(arg->seqid->sequence->counter);
-	encode_share_access(xdr, arg->open_flags);
+	encode_share_access(xdr, arg->fmode);
 	RESERVE_SPACE(28);
 	WRITE64(arg->clientid);
 	WRITE32(16);
@@ -1112,7 +1112,7 @@ static int encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closea
 	WRITE32(OP_OPEN_DOWNGRADE);
 	WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE);
 	WRITE32(arg->seqid->sequence->counter);
-	encode_share_access(xdr, arg->open_flags);
+	encode_share_access(xdr, arg->fmode);
 	return 0;
 }
 

include/linux/nfs_fs.h

@@ -83,7 +83,7 @@ struct nfs_open_context {
 	struct rpc_cred *cred;
 	struct nfs4_state *state;
 	fl_owner_t lockowner;
-	int mode;
+	fmode_t mode;
 
 	unsigned long flags;
 #define NFS_CONTEXT_ERROR_WRITE		(0)
@@ -342,7 +342,7 @@ extern int nfs_setattr(struct dentry *, struct iattr *);
 extern void nfs_setattr_update_inode(struct inode *inode, struct iattr *attr);
 extern struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx);
 extern void put_nfs_open_context(struct nfs_open_context *ctx);
-extern struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, int mode);
+extern struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, fmode_t mode);
 extern u64 nfs_compat_user_ino64(u64 fileid);
 extern void nfs_fattr_init(struct nfs_fattr *fattr);
 

include/linux/nfs_xdr.h

@@ -120,6 +120,7 @@ struct nfs_openargs {
 	const struct nfs_fh *	fh;
 	struct nfs_seqid *	seqid;
 	int			open_flags;
+	fmode_t			fmode;
 	__u64                   clientid;
 	__u64                   id;
 	union {
@@ -171,7 +172,7 @@ struct nfs_closeargs {
 	struct nfs_fh *         fh;
 	nfs4_stateid *		stateid;
 	struct nfs_seqid *	seqid;
-	int			open_flags;
+	fmode_t			fmode;
 	const u32 *		bitmask;
 };