linux-kernel - [RFC][PATCH 23/42] get rid of 'opened' in path

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Date:   Wed, 11 Jul 2018 03:21:47 +0100
From:   Al Viro <viro@...IV.linux.org.uk>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        Miklos Szeredi <mszeredi@...hat.com>
Subject: [RFC][PATCH 23/42] get rid of 'opened' in path_openat() and the helpers downstream

From: Al Viro <viro@...iv.linux.org.uk>

unused now

Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
---
 fs/namei.c | 22 ++++++++--------------
 1 file changed, 8 insertions(+), 14 deletions(-)

diff --git a/fs/namei.c b/fs/namei.c
index 96daa644e9e3..4ce780a8ebbc 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -3036,8 +3036,7 @@ static int may_o_create(const struct path *dir, struct dentry *dentry, umode_t m
 static int atomic_open(struct nameidata *nd, struct dentry *dentry,
 			struct path *path, struct file *file,
 			const struct open_flags *op,
-			int open_flag, umode_t mode,
-			int *opened)
+			int open_flag, umode_t mode)
 {
 	struct dentry *const DENTRY_NOT_SET = (void *) -1UL;
 	struct inode *dir =  nd->path.dentry->d_inode;
@@ -3105,14 +3104,11 @@ static int atomic_open(struct nameidata *nd, struct dentry *dentry,
  * specified then a negative dentry may be returned.
  *
  * An error code is returned otherwise.
- *
- * FILE_CREATE will be set in @*opened if the dentry was created and will be
- * cleared otherwise prior to returning.
  */
 static int lookup_open(struct nameidata *nd, struct path *path,
 			struct file *file,
 			const struct open_flags *op,
-			bool got_write, int *opened)
+			bool got_write)
 {
 	struct dentry *dir = nd->path.dentry;
 	struct inode *dir_inode = dir->d_inode;
@@ -3187,7 +3183,7 @@ static int lookup_open(struct nameidata *nd, struct path *path,
 
 	if (dir_inode->i_op->atomic_open) {
 		error = atomic_open(nd, dentry, path, file, op, open_flag,
-				    mode, opened);
+				    mode);
 		if (unlikely(error == -ENOENT) && create_error)
 			error = create_error;
 		return error;
@@ -3240,8 +3236,7 @@ static int lookup_open(struct nameidata *nd, struct path *path,
  * Handle the last step of open()
  */
 static int do_last(struct nameidata *nd,
-		   struct file *file, const struct open_flags *op,
-		   int *opened)
+		   struct file *file, const struct open_flags *op)
 {
 	struct dentry *dir = nd->path.dentry;
 	int open_flag = op->open_flag;
@@ -3307,7 +3302,7 @@ static int do_last(struct nameidata *nd,
 		inode_lock(dir->d_inode);
 	else
 		inode_lock_shared(dir->d_inode);
-	error = lookup_open(nd, &path, file, op, got_write, opened);
+	error = lookup_open(nd, &path, file, op, got_write);
 	if (open_flag & O_CREAT)
 		inode_unlock(dir->d_inode);
 	else
@@ -3452,7 +3447,7 @@ EXPORT_SYMBOL(vfs_tmpfile);
 
 static int do_tmpfile(struct nameidata *nd, unsigned flags,
 		const struct open_flags *op,
-		struct file *file, int *opened)
+		struct file *file)
 {
 	struct dentry *child;
 	struct path path;
@@ -3499,7 +3494,6 @@ static struct file *path_openat(struct nameidata *nd,
 {
 	const char *s;
 	struct file *file;
-	int opened = 0;
 	int error;
 
 	file = alloc_empty_file(current_cred());
@@ -3509,7 +3503,7 @@ static struct file *path_openat(struct nameidata *nd,
 	file->f_flags = op->open_flag;
 
 	if (unlikely(file->f_flags & __O_TMPFILE)) {
-		error = do_tmpfile(nd, flags, op, file, &opened);
+		error = do_tmpfile(nd, flags, op, file);
 		goto out2;
 	}
 
@@ -3524,7 +3518,7 @@ static struct file *path_openat(struct nameidata *nd,
 		return ERR_CAST(s);
 	}
 	while (!(error = link_path_walk(s, nd)) &&
-		(error = do_last(nd, file, op, &opened)) > 0) {
+		(error = do_last(nd, file, op)) > 0) {
 		nd->flags &= ~(LOOKUP_OPEN|LOOKUP_CREATE|LOOKUP_EXCL);
 		s = trailing_symlink(nd);
 		if (IS_ERR(s)) {
-- 
2.11.0