diff options
Diffstat (limited to 'io_uring')
| -rw-r--r-- | io_uring/io_uring.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index 740bfec10fde..92ac9c0fc597 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -673,6 +673,8 @@ static void io_cqring_overflow_kill(struct io_ring_ctx *ctx) struct io_overflow_cqe *ocqe; LIST_HEAD(list); + lockdep_assert_held(&ctx->uring_lock); + spin_lock(&ctx->completion_lock); list_splice_init(&ctx->cq_overflow_list, &list); clear_bit(IO_CHECK_CQ_OVERFLOW_BIT, &ctx->check_cq); @@ -689,6 +691,8 @@ static void __io_cqring_overflow_flush(struct io_ring_ctx *ctx) { size_t cqe_size = sizeof(struct io_uring_cqe); + lockdep_assert_held(&ctx->uring_lock); + if (__io_cqring_events(ctx) == ctx->cq_entries) return; @@ -718,12 +722,9 @@ static void __io_cqring_overflow_flush(struct io_ring_ctx *ctx) static void io_cqring_do_overflow_flush(struct io_ring_ctx *ctx) { - /* iopoll syncs against uring_lock, not completion_lock */ - if (ctx->flags & IORING_SETUP_IOPOLL) - mutex_lock(&ctx->uring_lock); + mutex_lock(&ctx->uring_lock); __io_cqring_overflow_flush(ctx); - if (ctx->flags & IORING_SETUP_IOPOLL) - mutex_unlock(&ctx->uring_lock); + mutex_unlock(&ctx->uring_lock); } /* can be called by any task */ @@ -1522,6 +1523,8 @@ static int io_iopoll_check(struct io_ring_ctx *ctx, long min) unsigned int nr_events = 0; unsigned long check_cq; + lockdep_assert_held(&ctx->uring_lock); + if (!io_allowed_run_tw(ctx)) return -EEXIST; |