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collect_paths(): constify the return value

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callers have no business modifying the paths they get

Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2025-08-24 19:34:37 -04:00
parent 1f6df58474
commit b42ffcd506
2 changed files with 4 additions and 4 deletions
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4
fs/namespace.c
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@ -2300,7 +2300,7 @@ static inline bool extend_array(struct path **res, struct path **to_free,
return p;
}
struct path *collect_paths(const struct path *path,
const struct path *collect_paths(const struct path *path,
struct path *prealloc, unsigned count)
{
struct mount *root = real_mount(path->mnt);
@ -2334,7 +2334,7 @@ struct path *collect_paths(const struct path *path,
return res;
}
void drop_collected_paths(const struct path *paths, struct path *prealloc)
void drop_collected_paths(const struct path *paths, const struct path *prealloc)
{
for (const struct path *p = paths; p->mnt; p++)
path_put(p);

4
include/linux/mount.h
View File

@ -104,8 +104,8 @@ extern int may_umount_tree(struct vfsmount *);
extern int may_umount(struct vfsmount *);
int do_mount(const char *, const char __user *,
const char *, unsigned long, void *);
extern struct path *collect_paths(const struct path *, struct path *, unsigned);
extern void drop_collected_paths(const struct path *, struct path *);
extern const struct path *collect_paths(const struct path *, struct path *, unsigned);
extern void drop_collected_paths(const struct path *, const struct path *);
extern void kern_unmount_array(struct vfsmount *mnt[], unsigned int num);
extern int cifs_root_data(char **dev, char **opts);