From: Pavel Begunkov <[email protected]>
To: [email protected]
Cc: [email protected]
Subject: [PATCH 2/3] io_uring: propagate io_buffer creation errors
Date: Fri, 31 Jan 2025 16:24:22 +0000 [thread overview]
Message-ID: <139e48488d160a13e81b170fe0499c4b756d527b.1738339723.git.asml.silence@gmail.com> (raw)
In-Reply-To: <[email protected]>
It's very unlikely, but in theory cache creation can fail during
initcall, so don't forget to return errors back if something goes wrong.
Fixes: b3a4dbc89d402 ("io_uring/kbuf: Use slab for struct io_buffer objects")
Signed-off-by: Pavel Begunkov <[email protected]>
---
io_uring/io_uring.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index 9335144495299..b05580c1a6424 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -3921,6 +3921,8 @@ static int __init io_uring_init(void)
io_buf_cachep = KMEM_CACHE(io_buffer,
SLAB_HWCACHE_ALIGN | SLAB_PANIC | SLAB_ACCOUNT);
+ if (!io_buf_cachep)
+ return -ENOMEM;
iou_wq = alloc_workqueue("iou_exit", WQ_UNBOUND, 64);
--
2.47.1
next prev parent reply other threads:[~2025-01-31 16:24 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-31 16:24 [PATCH 0/3] check errors in early init Pavel Begunkov
2025-01-31 16:24 ` [PATCH 1/3] io_uring: propagate req cache creation errors Pavel Begunkov
2025-01-31 16:26 ` Jens Axboe
2025-01-31 16:30 ` Pavel Begunkov
2025-01-31 16:24 ` Pavel Begunkov [this message]
2025-01-31 16:24 ` [PATCH 3/3] io_uring: check for iowq alloc_workqueue errors Pavel Begunkov
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