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namespace.c: constify struct path passed to a bunch of primitives 

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2016-11-20 19:45:28 -05:00
parent 8c54ca9c68
commit ca71cf71ee
4 changed files with 8 additions and 8 deletions
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2
fs/internal.h
View File

@ -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 *);

8
fs/namespace.c
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@ -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;

2
include/linux/fs.h
View File

@ -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 *);

4
include/linux/mount.h
View File

@ -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,