linux-kernel - [PATCH] io_uring: Simplify the allocation of slab caches

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Date: Tue, 30 Jan 2024 18:02:47 +0800
From: Kunwu Chan <chentao@...inos.cn>
To: axboe@...nel.dk,
	asml.silence@...il.com
Cc: io-uring@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Kunwu Chan <chentao@...inos.cn>
Subject: [PATCH] io_uring: Simplify the allocation of slab caches

commit 0a31bd5f2bbb ("KMEM_CACHE(): simplify slab cache creation")
introduces a new macro.
Use the new KMEM_CACHE() macro instead of direct kmem_cache_create
to simplify the creation of SLAB caches.

Signed-off-by: Kunwu Chan <chentao@...inos.cn>
---
 io_uring/io_uring.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index cd9a137ad6ce..9a810b1169f2 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -4175,9 +4175,8 @@ static int __init io_uring_init(void)
 				SLAB_ACCOUNT | SLAB_TYPESAFE_BY_RCU,
 				offsetof(struct io_kiocb, cmd.data),
 				sizeof_field(struct io_kiocb, cmd.data), NULL);
-	io_buf_cachep = kmem_cache_create("io_buffer", sizeof(struct io_buffer), 0,
-					  SLAB_HWCACHE_ALIGN | SLAB_PANIC | SLAB_ACCOUNT,
-					  NULL);
+	io_buf_cachep = KMEM_CACHE(io_buffer,
+					  SLAB_HWCACHE_ALIGN | SLAB_PANIC | SLAB_ACCOUNT);
 
 #ifdef CONFIG_SYSCTL
 	register_sysctl_init("kernel", kernel_io_uring_disabled_table);
-- 
2.39.2