This splits off a do_user_path_at_empty function from the
user_path_at_empty_function. This is required so it can be
called from io_uring.
Signed-off-by: Stefan Roesch <shr@xxxxxx>
Acked-by: Christian Brauner <christian.brauner@xxxxxxxxxx>
---
fs/namei.c | 10 ++++++++--
include/linux/namei.h | 2 ++
2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/fs/namei.c b/fs/namei.c
index 1f9d2187c765..d988e241b32c 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -2794,12 +2794,18 @@ int path_pts(struct path *path)
}
#endif
+int do_user_path_at_empty(int dfd, struct filename *filename, unsigned int flags,
+ struct path *path)
+{
+ return filename_lookup(dfd, filename, flags, path, NULL);
+}
+
int user_path_at_empty(int dfd, const char __user *name, unsigned flags,
- struct path *path, int *empty)
+ struct path *path, int *empty)
{
struct filename *filename = getname_flags(name, flags, empty);
- int ret = filename_lookup(dfd, filename, flags, path, NULL);
+ int ret = do_user_path_at_empty(dfd, filename, flags, path);
putname(filename);
return ret;
}
diff --git a/include/linux/namei.h b/include/linux/namei.h
index e89329bb3134..8f3ef38c057b 100644
--- a/include/linux/namei.h
+++ b/include/linux/namei.h
@@ -49,6 +49,8 @@ enum {LAST_NORM, LAST_ROOT, LAST_DOT, LAST_DOTDOT};
extern int path_pts(struct path *path);
+extern int do_user_path_at_empty(int dfd, struct filename *filename,
+ unsigned int flags, struct path *path);
extern int user_path_at_empty(int, const char __user *, unsigned, struct path *, int *empty);
static inline int user_path_at(int dfd, const char __user *name, unsigned flags,
--
2.30.2
