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| author | Pavel Begunkov <asml.silence@gmail.com> | 2021-01-08 21:57:22 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-01-09 17:21:43 +0100 |
| commit | 55e6ac1e1f31c7f678d9f3c8d54c6f102e5f1550 (patch) | |
| tree | 950875a3acab38451777ea80330fb9ff4f5224f1 /fs | |
| parent | io_uring: synchronise ev_posted() with waitqueues (diff) | |
| download | linux-55e6ac1e1f31c7f678d9f3c8d54c6f102e5f1550.tar.xz linux-55e6ac1e1f31c7f678d9f3c8d54c6f102e5f1550.zip | |
io_uring: io_rw_reissue lockdep annotations
We expect io_rw_reissue() to take place only during submission with
uring_lock held. Add a lockdep annotation to check that invariant.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/io_uring.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c index cb57e0360fcb..55ba1922a349 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -2692,6 +2692,8 @@ static bool io_rw_reissue(struct io_kiocb *req, long res) if ((res != -EAGAIN && res != -EOPNOTSUPP) || io_wq_current_is_worker()) return false; + lockdep_assert_held(&req->ctx->uring_lock); + ret = io_sq_thread_acquire_mm_files(req->ctx, req); if (io_resubmit_prep(req, ret)) { |