[PATCH v3 12/17] nfsd: open-code nfsd4_vfs_create() into nfsd4_create_file()

From: NeilBrown <neil-+NVA1uvv1dVBDLzU/[email protected]>

Having this sub function separate doesn't really add clarity, and merging
allows for some refactoring and ultimately using a different VFS
interface.

Reviewed-by: Jeff Layton <[email protected]>
Signed-off-by: NeilBrown <neil-+NVA1uvv1dVBDLzU/[email protected]>
---
 fs/nfsd/nfs4proc.c | 76 +++++++++++++++++++++-------------------------
 1 file changed, 34 insertions(+), 42 deletions(-)

diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index a1dfe0a31ad7..32b6c0e507ea 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -201,46 +201,6 @@ static inline bool nfsd4_create_is_exclusive(int createmode)
 		createmode == NFS4_CREATE_EXCLUSIVE4_1;
 }
 
-static __be32
-nfsd4_vfs_create(struct svc_fh *fhp, struct dentry **child,
-		 struct nfsd4_open *open)
-{
-	struct file *filp;
-	struct path path;
-	int oflags;
-
-	oflags = O_CREAT | O_LARGEFILE;
-	/*
-	 * For the EXCLUSIVE modes we do our own uniqueness tests
-	 * so don't want O_EXCL.
-	 */
-	if (open->op_createmode == NFS4_CREATE_GUARDED)
-		oflags |= O_EXCL;
-
-	switch (open->op_share_access & NFS4_SHARE_ACCESS_BOTH) {
-	case NFS4_SHARE_ACCESS_WRITE:
-		oflags |= O_WRONLY;
-		break;
-	case NFS4_SHARE_ACCESS_BOTH:
-		oflags |= O_RDWR;
-		break;
-	default:
-		oflags |= O_RDONLY;
-	}
-
-	path.mnt = fhp->fh_export->ex_path.mnt;
-	path.dentry = *child;
-	filp = dentry_create(&path, oflags, open->op_iattr.ia_mode,
-			     current_cred());
-	*child = path.dentry;
-
-	if (IS_ERR(filp))
-		return nfserrno(PTR_ERR(filp));
-
-	open->op_filp = filp;
-	return nfs_ok;
-}
-
 /*
  * Implement NFSv4's unchecked, guarded, and exclusive create
  * semantics for regular files. Open state for this new file is
@@ -398,9 +358,41 @@ nfsd4_create_file(struct svc_rqst *rqstp, struct svc_fh *fhp,
 	} else if (create_status) {
 		status = create_status;
 	} else {
-		status = nfsd4_vfs_create(fhp, &child, open);
-		if (status == nfs_ok)
+		struct file *filp;
+		struct path path;
+		int oflags;
+
+		oflags = O_CREAT | O_LARGEFILE;
+		/*
+		 * For the EXCLUSIVE modes we do our own uniqueness tests
+		 * so don't want O_EXCL.
+		 */
+		if (open->op_createmode == NFS4_CREATE_GUARDED)
+			oflags |= O_EXCL;
+
+		switch (open->op_share_access & NFS4_SHARE_ACCESS_BOTH) {
+		case NFS4_SHARE_ACCESS_WRITE:
+			oflags |= O_WRONLY;
+			break;
+		case NFS4_SHARE_ACCESS_BOTH:
+			oflags |= O_RDWR;
+			break;
+		default:
+			oflags |= O_RDONLY;
+		}
+
+		path.mnt = fhp->fh_export->ex_path.mnt;
+		path.dentry = child;
+		filp = dentry_create(&path, oflags, open->op_iattr.ia_mode,
+				     current_cred());
+		child = path.dentry;
+
+		if (IS_ERR(filp)) {
+			status = nfserrno(PTR_ERR(filp));
+		} else {
+			open->op_filp = filp;
 			open->op_created = open->op_filp->f_mode & FMODE_CREATED;
+		}
 	}
 	end_creating(child);
 	if (status != nfs_ok)
-- 
2.50.0.107.gf914562f5916.dirty