| commit | 935d1e45908afb8853c497f2c2bbbb685dec51dc | [log] [tgz] |
|---|---|---|
| author | Pavel Begunkov <asml.silence@gmail.com> | Fri Oct 25 12:31:31 2019 +0300 |
| committer | Jens Axboe <axboe@kernel.dk> | Fri Oct 25 09:02:01 2019 -0600 |
| tree | 408e5c91fcd34aaa19d71fb4c672d89bf3e9c756 | |
| parent | fb5ccc98782f654778cb8d96ba8a998304f9a51f [diff] |
io_uring: Fix race for sqes with userspace io_ring_submit() finalises with 1. io_commit_sqring(), which releases sqes to the userspace 2. Then calls to io_queue_link_head(), accessing released head's sqe Reorder them. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>