Commit dddb3e26 authored by Jens Axboe's avatar Jens Axboe

io_uring: re-set iov base/len for buffer select retry

We already have the buffer selected, but we should set the iter list
again.

Cc: stable@vger.kernel.org # v5.7
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent d2b6f48b
...@@ -2363,8 +2363,14 @@ static ssize_t __io_iov_buffer_select(struct io_kiocb *req, struct iovec *iov, ...@@ -2363,8 +2363,14 @@ static ssize_t __io_iov_buffer_select(struct io_kiocb *req, struct iovec *iov,
static ssize_t io_iov_buffer_select(struct io_kiocb *req, struct iovec *iov, static ssize_t io_iov_buffer_select(struct io_kiocb *req, struct iovec *iov,
bool needs_lock) bool needs_lock)
{ {
if (req->flags & REQ_F_BUFFER_SELECTED) if (req->flags & REQ_F_BUFFER_SELECTED) {
struct io_buffer *kbuf;
kbuf = (struct io_buffer *) (unsigned long) req->rw.addr;
iov[0].iov_base = u64_to_user_ptr(kbuf->addr);
iov[0].iov_len = kbuf->len;
return 0; return 0;
}
if (!req->rw.len) if (!req->rw.len)
return 0; return 0;
else if (req->rw.len > 1) else if (req->rw.len > 1)
......
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