6.14-stable review patch. If anyone has any objections, please let me know.
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From: Pavel Begunkov asml.silence@gmail.com
[ Upstream commit 7215469659cb9751a9bf80e43b24a48749004d26 ]
alloc_workqueue() can fail even during init in io_uring_init(), check the result and panic if anything went wrong.
Fixes: 73eaa2b583493 ("io_uring: use private workqueue for exit work") Signed-off-by: Pavel Begunkov asml.silence@gmail.com Link: https://lore.kernel.org/r/3a046063902f888f66151f89fa42f84063b9727b.173834308... Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin sashal@kernel.org --- io_uring/io_uring.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index f7acae5f7e1d0..573b3f542b82a 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -3922,6 +3922,7 @@ static int __init io_uring_init(void) SLAB_HWCACHE_ALIGN | SLAB_PANIC | SLAB_ACCOUNT);
iou_wq = alloc_workqueue("iou_exit", WQ_UNBOUND, 64); + BUG_ON(!iou_wq);
#ifdef CONFIG_SYSCTL register_sysctl_init("kernel", kernel_io_uring_disabled_table);