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| author | Pavel Begunkov <asml.silence@gmail.com> | 2025-01-31 17:28:21 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-10 14:44:02 +0200 |
| commit | 8e1844027c0ca4eacc7842cd786895598a740499 (patch) | |
| tree | aa5f2829414932e491910ccba8b5726fd42a1ddb /io_uring | |
| parent | f1d94b5d4286fc2d1cfd178e5d0de66e4629fac2 (diff) | |
| download | linux-8e1844027c0ca4eacc7842cd786895598a740499.tar.gz linux-8e1844027c0ca4eacc7842cd786895598a740499.tar.bz2 linux-8e1844027c0ca4eacc7842cd786895598a740499.zip | |
io_uring: check for iowq alloc_workqueue failure
[ 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.1738343083.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'io_uring')
| -rw-r--r-- | io_uring/io_uring.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index f7acae5f7e1d..573b3f542b82 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); |