NFSv4: Clean up nfs4_open_revalidate

Remove references to 'struct nameidata' from the low-level open_revalidate
code, and replace them with a struct nfs_open_context which will be
correctly initialised upon success.

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

1 files changed, 6 insertions, 17 deletions

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index f8d41ee..b476246 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2038,21 +2038,11 @@ nfs4_atomic_open(struct inode *dir, struct nfs_open_context *ctx, int open_flags
 }
 
 int
-nfs4_open_revalidate(struct inode *dir, struct dentry *dentry, int openflags, struct nameidata *nd)
+nfs4_open_revalidate(struct inode *dir, struct nfs_open_context *ctx, int openflags)
 {
-	struct path path = {
-		.mnt = nd->path.mnt,
-		.dentry = dentry,
-	};
-	struct rpc_cred *cred;
 	struct nfs4_state *state;
-	fmode_t fmode = openflags & (FMODE_READ | FMODE_WRITE);
 
-	cred = rpc_lookup_cred();
-	if (IS_ERR(cred))
-		return PTR_ERR(cred);
-	state = nfs4_do_open(dir, &path, fmode, openflags, NULL, cred);
-	put_rpccred(cred);
+	state = nfs4_do_open(dir, &ctx->path, ctx->mode, openflags, NULL, ctx->cred);
 	if (IS_ERR(state)) {
 		switch (PTR_ERR(state)) {
 			case -EPERM:
@@ -2065,14 +2055,13 @@ nfs4_open_revalidate(struct inode *dir, struct dentry *dentry, int openflags, st
 				goto out_drop;
 		}
 	}
-	if (state->inode == dentry->d_inode) {
-		nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
-		nfs4_intent_set_file(nd, &path, state, fmode);
+	ctx->state = state;
+	if (state->inode == ctx->path.dentry->d_inode) {
+		nfs_set_verifier(ctx->path.dentry, nfs_save_change_attribute(dir));
 		return 1;
 	}
-	nfs4_close_sync(&path, state, fmode);
 out_drop:
-	d_drop(dentry);
+	d_drop(ctx->path.dentry);
 	return 0;
 }