1 // SPDX-License-Identifier: GPL-2.0
2 #include <linux/kernel.h>
3 #include <linux/errno.h>
5 #include <linux/file.h>
7 #include <linux/slab.h>
8 #include <linux/syscalls.h>
9 #include <linux/io_uring.h>
11 #include <uapi/linux/io_uring.h>
13 #include "../fs/internal.h"
23 int io_ftruncate_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
25 struct io_ftrunc *ft = io_kiocb_to_cmd(req, struct io_ftrunc);
27 if (sqe->rw_flags || sqe->addr || sqe->len || sqe->buf_index ||
28 sqe->splice_fd_in || sqe->addr3)
31 ft->len = READ_ONCE(sqe->off);
33 req->flags |= REQ_F_FORCE_ASYNC;
37 int io_ftruncate(struct io_kiocb *req, unsigned int issue_flags)
39 struct io_ftrunc *ft = io_kiocb_to_cmd(req, struct io_ftrunc);
42 WARN_ON_ONCE(issue_flags & IO_URING_F_NONBLOCK);
44 ret = do_ftruncate(req->file, ft->len, 1);
46 io_req_set_res(req, ret, 0);