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io_uring: add missing io_req_cancelled() 

fallocate_finish() is missing cancellation check. Add it.
It's safe to do that, as only flags setup and sqe fields copy are done
before it gets into __io_fallocate().

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2020-02-16 01:01:18 +03:00 committed by Jens Axboe
parent db70e26e33
commit 7fbeb95d0f
1 changed files with 4 additions and 0 deletions
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4
fs/io_uring.c
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@ -2517,6 +2517,9 @@ static void io_fallocate_finish(struct io_wq_work **workptr)
struct io_kiocb *nxt = NULL;
int ret;
if (io_req_cancelled(req))
return;
ret = vfs_fallocate(req->file, req->sync.mode, req->sync.off,
req->sync.len);
if (ret < 0)
@ -2904,6 +2907,7 @@ static void io_close_finish(struct io_wq_work **workptr)
struct io_kiocb *req = container_of(*workptr, struct io_kiocb, work);
struct io_kiocb *nxt = NULL;
/* not cancellable, don't do io_req_cancelled() */
__io_close_finish(req, &nxt);
if (nxt)
io_wq_assign_next(workptr, nxt);