Contributors: 7
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Jens Axboe |
316 |
90.80% |
9 |
50.00% |
| Dylan Yudaken |
10 |
2.87% |
1 |
5.56% |
| Stefan Metzmacher |
9 |
2.59% |
1 |
5.56% |
| Linus Torvalds (pre-git) |
6 |
1.72% |
4 |
22.22% |
| Peter Chubb |
3 |
0.86% |
1 |
5.56% |
| Bijan Mottahedeh |
3 |
0.86% |
1 |
5.56% |
| Greg Kroah-Hartman |
1 |
0.29% |
1 |
5.56% |
| Total |
348 |
|
18 |
|
// SPDX-License-Identifier: GPL-2.0
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/file.h>
#include <linux/io_uring.h>
#include <uapi/linux/io_uring.h>
#include "../fs/internal.h"
#include "io_uring.h"
#include "statx.h"
struct io_statx {
struct file *file;
int dfd;
unsigned int mask;
unsigned int flags;
struct filename *filename;
struct statx __user *buffer;
};
int io_statx_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_statx *sx = io_kiocb_to_cmd(req, struct io_statx);
const char __user *path;
if (sqe->buf_index || sqe->splice_fd_in)
return -EINVAL;
if (req->flags & REQ_F_FIXED_FILE)
return -EBADF;
sx->dfd = READ_ONCE(sqe->fd);
sx->mask = READ_ONCE(sqe->len);
path = u64_to_user_ptr(READ_ONCE(sqe->addr));
sx->buffer = u64_to_user_ptr(READ_ONCE(sqe->addr2));
sx->flags = READ_ONCE(sqe->statx_flags);
sx->filename = getname_flags(path,
getname_statx_lookup_flags(sx->flags));
if (IS_ERR(sx->filename)) {
int ret = PTR_ERR(sx->filename);
sx->filename = NULL;
return ret;
}
req->flags |= REQ_F_NEED_CLEANUP;
req->flags |= REQ_F_FORCE_ASYNC;
return 0;
}
int io_statx(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_statx *sx = io_kiocb_to_cmd(req, struct io_statx);
int ret;
WARN_ON_ONCE(issue_flags & IO_URING_F_NONBLOCK);
ret = do_statx(sx->dfd, sx->filename, sx->flags, sx->mask, sx->buffer);
io_req_set_res(req, ret, 0);
return IOU_OK;
}
void io_statx_cleanup(struct io_kiocb *req)
{
struct io_statx *sx = io_kiocb_to_cmd(req, struct io_statx);
if (sx->filename)
putname(sx->filename);
}