@@ -3782,22 +3782,30 @@ static struct file *path_openat(struct nameidata *nd,
struct file *file;
int error;
- file = alloc_empty_file(op->open_flag, current_cred());
- if (IS_ERR(file))
- return file;
-
- if (unlikely(file->f_flags & __O_TMPFILE)) {
+ if (unlikely(op->open_flag & __O_TMPFILE)) {
+ file = alloc_empty_file(op->open_flag, current_cred());
+ if (IS_ERR(file))
+ return file;
error = do_tmpfile(nd, flags, op, file);
- } else if (unlikely(file->f_flags & O_PATH)) {
+ } else if (unlikely(op->open_flag & O_PATH)) {
+ file = alloc_empty_file(op->open_flag, current_cred());
+ if (IS_ERR(file))
+ return file;
error = do_o_path(nd, flags, file);
} else {
const char *s = path_init(nd, flags);
- while (!(error = link_path_walk(s, nd)) &&
- (s = open_last_lookups(nd, file, op)) != NULL)
- ;
+ file = alloc_empty_file(op->open_flag, current_cred());
+ error = PTR_ERR_OR_ZERO(file);
+ if (!error) {
+ while (!(error = link_path_walk(s, nd)) &&
+ (s = open_last_lookups(nd, file, op)) != NULL)
+ ;
+ }
if (!error)
error = do_open(nd, file, op);
terminate_walk(nd);
+ if (IS_ERR(file))
+ return file;
}
if (likely(!error)) {
if (likely(file->f_mode & FMODE_OPENED))
This patch moves the call to alloc_empty_file() below the call to path_init(). That changes is needed for the next patch, which adds a cred override for alloc_empty_file(). The needed cred info is only available after the call to path_init(). No functional changes are intended by that patch. Signed-off-by: Stas Sergeev <stsp2@yandex.ru> CC: Eric Biederman <ebiederm@xmission.com> CC: Alexander Viro <viro@zeniv.linux.org.uk> CC: Christian Brauner <brauner@kernel.org> CC: Jan Kara <jack@suse.cz> CC: Andy Lutomirski <luto@kernel.org> CC: linux-fsdevel@vger.kernel.org CC: linux-kernel@vger.kernel.org --- fs/namei.c | 26 +++++++++++++++++--------- 1 file changed, 17 insertions(+), 9 deletions(-)