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authorAl Viro <viro@zeniv.linux.org.uk>2016-11-20 19:45:28 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2016-12-05 19:03:12 -0500
commitca71cf71eeda04dc9ad18271504e499013af5415 (patch)
tree9e21710c7bc102a5b775bf91ed1f291fd6f2c166
parent8c54ca9c6882f5a68d19a82fd063b74f91d4c22b (diff)
downloadlinux-ca71cf71eeda04dc9ad18271504e499013af5415.tar.bz2
namespace.c: constify struct path passed to a bunch of primitives
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r--fs/internal.h2
-rw-r--r--fs/namespace.c8
-rw-r--r--include/linux/fs.h2
-rw-r--r--include/linux/mount.h4
4 files changed, 8 insertions, 8 deletions
diff --git a/fs/internal.h b/fs/internal.h
index f4da3341b4a3..3e460159d835 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -62,7 +62,7 @@ extern int vfs_path_lookup(struct dentry *, struct vfsmount *,
extern void *copy_mount_options(const void __user *);
extern char *copy_mount_string(const void __user *);
-extern struct vfsmount *lookup_mnt(struct path *);
+extern struct vfsmount *lookup_mnt(const struct path *);
extern int finish_automount(struct vfsmount *, struct path *);
extern int sb_prepare_remount_readonly(struct super_block *);
diff --git a/fs/namespace.c b/fs/namespace.c
index 4d80a5066a1f..9ad88a45b3e3 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -678,7 +678,7 @@ out:
*
* lookup_mnt takes a reference to the found vfsmount.
*/
-struct vfsmount *lookup_mnt(struct path *path)
+struct vfsmount *lookup_mnt(const struct path *path)
{
struct mount *child_mnt;
struct vfsmount *m;
@@ -1159,7 +1159,7 @@ struct vfsmount *mntget(struct vfsmount *mnt)
}
EXPORT_SYMBOL(mntget);
-struct vfsmount *mnt_clone_internal(struct path *path)
+struct vfsmount *mnt_clone_internal(const struct path *path)
{
struct mount *p;
p = clone_mnt(real_mount(path->mnt), path->dentry, CL_PRIVATE);
@@ -1758,7 +1758,7 @@ out:
/* Caller should check returned pointer for errors */
-struct vfsmount *collect_mounts(struct path *path)
+struct vfsmount *collect_mounts(const struct path *path)
{
struct mount *tree;
namespace_lock();
@@ -1791,7 +1791,7 @@ void drop_collected_mounts(struct vfsmount *mnt)
*
* Release with mntput().
*/
-struct vfsmount *clone_private_mount(struct path *path)
+struct vfsmount *clone_private_mount(const struct path *path)
{
struct mount *old_mnt = real_mount(path->mnt);
struct mount *new_mnt;
diff --git a/include/linux/fs.h b/include/linux/fs.h
index f96501b51c49..3056fe46f336 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2123,7 +2123,7 @@ extern int may_umount_tree(struct vfsmount *);
extern int may_umount(struct vfsmount *);
extern long do_mount(const char *, const char __user *,
const char *, unsigned long, void *);
-extern struct vfsmount *collect_mounts(struct path *);
+extern struct vfsmount *collect_mounts(const struct path *);
extern void drop_collected_mounts(struct vfsmount *);
extern int iterate_mounts(int (*)(struct vfsmount *, void *), void *,
struct vfsmount *);
diff --git a/include/linux/mount.h b/include/linux/mount.h
index 1172cce949a4..cf2b5784b649 100644
--- a/include/linux/mount.h
+++ b/include/linux/mount.h
@@ -79,12 +79,12 @@ extern void mnt_drop_write(struct vfsmount *mnt);
extern void mnt_drop_write_file(struct file *file);
extern void mntput(struct vfsmount *mnt);
extern struct vfsmount *mntget(struct vfsmount *mnt);
-extern struct vfsmount *mnt_clone_internal(struct path *path);
+extern struct vfsmount *mnt_clone_internal(const struct path *path);
extern int __mnt_is_readonly(struct vfsmount *mnt);
extern bool mnt_may_suid(struct vfsmount *mnt);
struct path;
-extern struct vfsmount *clone_private_mount(struct path *path);
+extern struct vfsmount *clone_private_mount(const struct path *path);
struct file_system_type;
extern struct vfsmount *vfs_kern_mount(struct file_system_type *type,