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io_uring: add irq lockdep checks
author
Pavel Begunkov
<asml.silence@gmail.com>
Tue, 11 Apr 2023 11:06:03 +0000
(12:06 +0100)
committer
Jens Axboe
<axboe@kernel.dk>
Wed, 12 Apr 2023 18:09:41 +0000
(12:09 -0600)
We don't post CQEs from the IRQ context, add a check catching that.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link:
https://lore.kernel.org/r/f23f7a24dbe8027b3d37873fece2b6488f878b31.1681210788.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
io_uring/io_uring.h
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diff --git
a/io_uring/io_uring.h
b/io_uring/io_uring.h
index
ef449e4
..
25515d6
100644
(file)
--- a/
io_uring/io_uring.h
+++ b/
io_uring/io_uring.h
@@
-94,6
+94,8
@@
bool io_match_task_safe(struct io_kiocb *head, struct task_struct *task,
#define io_lockdep_assert_cq_locked(ctx) \
do { \
+ lockdep_assert(in_task()); \
+ \
if (ctx->flags & IORING_SETUP_IOPOLL) { \
lockdep_assert_held(&ctx->uring_lock); \
} else if (!ctx->task_complete) { \