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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-03-19 16:15:33 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-03-19 16:15:33 +0100 |
| commit | 7e2dc8ed7862ac622b5a59953b679de97001dc83 (patch) | |
| tree | d2d2cf61a22f5a6404000ee007c5e80bc2d9eca9 /io_uring/eventfd.c | |
| parent | a7e8c9cc3a13baf3dcf9734dd55609aa7ff9a1a0 (diff) | |
| parent | 4a2b0ed2ac7abe9743e1559d212075a0ebac96b3 (diff) | |
Merge v6.19.9linux-rolling-stable
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'io_uring/eventfd.c')
| -rw-r--r-- | io_uring/eventfd.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/io_uring/eventfd.c b/io_uring/eventfd.c index 78f8ab7db104..ab789e1ebe91 100644 --- a/io_uring/eventfd.c +++ b/io_uring/eventfd.c @@ -76,11 +76,15 @@ void io_eventfd_signal(struct io_ring_ctx *ctx, bool cqe_event) { bool skip = false; struct io_ev_fd *ev_fd; - - if (READ_ONCE(ctx->rings->cq_flags) & IORING_CQ_EVENTFD_DISABLED) - return; + struct io_rings *rings; guard(rcu)(); + + rings = rcu_dereference(ctx->rings_rcu); + if (!rings) + return; + if (READ_ONCE(rings->cq_flags) & IORING_CQ_EVENTFD_DISABLED) + return; ev_fd = rcu_dereference(ctx->io_ev_fd); /* * Check again if ev_fd exists in case an io_eventfd_unregister call |