From: Pavel Begunkov <asml.silence@gmail.com> mainline inclusion from mainline-v6.15-rc1 commit 7215469659cb9751a9bf80e43b24a48749004d26 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IC6ES1 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i... -------------------------------- 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> Conflicts: io_uring/io_uring.c [Commit 76d3ccecfa18 ("io_uring: add a sysctl to disable io_uring system-wide") add register_sysctl_init in io_uring_init.] Signed-off-by: Li Lingfeng <lilingfeng3@huawei.com> --- 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 6677213e07b4..78d89002242a 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -11002,6 +11002,7 @@ static int __init io_uring_init(void) SLAB_ACCOUNT); iou_wq = alloc_workqueue("iou_exit", WQ_UNBOUND, 64); + BUG_ON(!iou_wq); return 0; }; __initcall(io_uring_init); -- 2.31.1