diff options
| author | Daniele Albano <d.albano@gmail.com> | 2020-07-18 22:15:16 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-07-18 22:15:16 +0200 |
| commit | 61710e437f2807e26a3402543bdbb7217a9c8620 (patch) | |
| tree | 8173d238114e247df76e37a779f8f29ad2f637d8 /fs | |
| parent | io_uring: ensure double poll additions work with both request types (diff) | |
| download | linux-61710e437f2807e26a3402543bdbb7217a9c8620.tar.xz linux-61710e437f2807e26a3402543bdbb7217a9c8620.zip | |
io_uring: always allow drain/link/hardlink/async sqe flags
We currently filter these for timeout_remove/async_cancel/files_update,
but we only should be filtering for fixed file and buffer select. This
also causes a second read of sqe->flags, which isn't needed.
Just check req->flags for the relevant bits. This then allows these
commands to be used in links, for example, like everything else.
Signed-off-by: Daniele Albano <d.albano@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/io_uring.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c index 53232ac3da17..d99802ac166f 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -4737,7 +4737,9 @@ static int io_timeout_remove_prep(struct io_kiocb *req, { if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL)) return -EINVAL; - if (sqe->flags || sqe->ioprio || sqe->buf_index || sqe->len) + if (unlikely(req->flags & (REQ_F_FIXED_FILE | REQ_F_BUFFER_SELECT))) + return -EINVAL; + if (sqe->ioprio || sqe->buf_index || sqe->len) return -EINVAL; req->timeout.addr = READ_ONCE(sqe->addr); @@ -4915,8 +4917,9 @@ static int io_async_cancel_prep(struct io_kiocb *req, { if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL)) return -EINVAL; - if (sqe->flags || sqe->ioprio || sqe->off || sqe->len || - sqe->cancel_flags) + if (unlikely(req->flags & (REQ_F_FIXED_FILE | REQ_F_BUFFER_SELECT))) + return -EINVAL; + if (sqe->ioprio || sqe->off || sqe->len || sqe->cancel_flags) return -EINVAL; req->cancel.addr = READ_ONCE(sqe->addr); @@ -4934,7 +4937,9 @@ static int io_async_cancel(struct io_kiocb *req) static int io_files_update_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) { - if (sqe->flags || sqe->ioprio || sqe->rw_flags) + if (unlikely(req->flags & (REQ_F_FIXED_FILE | REQ_F_BUFFER_SELECT))) + return -EINVAL; + if (sqe->ioprio || sqe->rw_flags) return -EINVAL; req->files_update.offset = READ_ONCE(sqe->off); |