+ autofs-make-struct-path-const-in-autofs4_dir_open.patch added to -mm tree

+ autofs-make-struct-path-const-in-autofs4_dir_open.patch added to -mm tree

[akpm]

The patch titled
     Subject: autofs: make struct path const in autofs4_dir_open()
has been added to the -mm tree.  Its filename is
     autofs-make-struct-path-const-in-autofs4_dir_open.patch

This patch should soon appear at
    http://ozlabs.org/~akpm/mmots/broken-out/autofs-make-struct-path-const-in-autofs4_dir_open.patch
and later at
    http://ozlabs.org/~akpm/mmotm/broken-out/autofs-make-struct-path-const-in-autofs4_dir_open.patch

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------------------------------------------------------
From: Ian Kent <ikent@redhat.com>
Subject: autofs: make struct path const in autofs4_dir_open()

There's no reason to copy the file->f_path in autofs4_dir_open() and
f_path is not modified so change it to a "const struct path *".

Link: http://lkml.kernel.org/r/148029911386.27779.14131036159082881283.stgit@pluto.themaw.net
Signed-off-by: Ian Kent <raven@themaw.net>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Omar Sandoval <osandov@osandov.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/autofs4/root.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff -puN fs/autofs4/root.c~autofs-make-struct-path-const-in-autofs4_dir_open fs/autofs4/root.c
--- a/fs/autofs4/root.c~autofs-make-struct-path-const-in-autofs4_dir_open
+++ a/fs/autofs4/root.c
@@ -107,14 +107,14 @@ static int autofs4_dir_open(struct inode
 {
 	struct dentry *dentry = file->f_path.dentry;
 	struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
-	struct path path;
+	const struct path *path;
 
 	pr_debug("file=%p dentry=%p %pd\n", file, dentry, dentry);
 
 	if (autofs4_oz_mode(sbi))
 		goto out;
 
-	path = file->f_path;
+	path = &file->f_path;
 
 	/*
 	 * An empty directory in an autofs file system is always a
@@ -126,7 +126,7 @@ static int autofs4_dir_open(struct inode
 	 * it.
 	 */
 	spin_lock(&sbi->lookup_lock);
-	if (!path_is_mountpoint(&path) && simple_empty(dentry)) {
+	if (!path_is_mountpoint(path) && simple_empty(dentry)) {
 		spin_unlock(&sbi->lookup_lock);
 		return -ENOENT;
 	}
_

Patches currently in -mm which might be from ikent@redhat.com are

vfs-change-d_manage-to-take-a-struct-path.patch
vfs-add-path_is_mountpoint-helper.patch
vfs-add-path_has_submounts.patch
autofs-change-autofs4_expire_wait-to-take-struct-path.patch
autofs-change-autofs4_wait-to-take-struct-path.patch
autofs-use-path_is_mountpoint-to-fix-unreliable-d_mountpoint-checks.patch
autofs-use-path_has_submounts-to-fix-unreliable-have_submount-checks.patch
vfs-remove-unused-have_submounts-function.patch
vfs-merge-path_is_mountpoint-and-path_is_mountpoint_rcu.patch
autofs-make-struct-path-const-in-autofs4_dir_open.patch
autofs-change-struct-path-to-const-in-autofs4_expire_wait-and-autofs4_wait.patch
vfs-change-struct-path-to-const-in-d_manage.patch
vfs-constify-path-parameter-of-path_has_submounts.patch
autofs-dont-hold-spin-lock-over-direct-mount-expire.patch
vfs-make-may_umount_tree-mount-propogation-aware.patch