1 // SPDX-License-Identifier: GPL-2.0
2 #include <linux/kernel.h>
3 #include <linux/errno.h>
4 #include <linux/file.h>
5 #include <linux/io_uring.h>
7 #include <uapi/linux/io_uring.h>
9 #include "../fs/internal.h"
19 struct filename *filename;
20 struct statx __user *buffer;
23 int io_statx_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
25 struct io_statx *sx = io_kiocb_to_cmd(req);
26 const char __user *path;
28 if (sqe->buf_index || sqe->splice_fd_in)
30 if (req->flags & REQ_F_FIXED_FILE)
33 sx->dfd = READ_ONCE(sqe->fd);
34 sx->mask = READ_ONCE(sqe->len);
35 path = u64_to_user_ptr(READ_ONCE(sqe->addr));
36 sx->buffer = u64_to_user_ptr(READ_ONCE(sqe->addr2));
37 sx->flags = READ_ONCE(sqe->statx_flags);
39 sx->filename = getname_flags(path,
40 getname_statx_lookup_flags(sx->flags),
43 if (IS_ERR(sx->filename)) {
44 int ret = PTR_ERR(sx->filename);
50 req->flags |= REQ_F_NEED_CLEANUP;
54 int io_statx(struct io_kiocb *req, unsigned int issue_flags)
56 struct io_statx *sx = io_kiocb_to_cmd(req);
59 if (issue_flags & IO_URING_F_NONBLOCK)
62 ret = do_statx(sx->dfd, sx->filename, sx->flags, sx->mask, sx->buffer);
63 io_req_set_res(req, ret, 0);
67 void io_statx_cleanup(struct io_kiocb *req)
69 struct io_statx *sx = io_kiocb_to_cmd(req);
72 putname(sx->filename);