Re: [PATCH] cred: Use KMEM_CACHE instead of kmem_cache_create

From: Paul Moore
Date: Thu Feb 15 2024 - 22:55:09 EST


On Tue, Jan 30, 2024 at 4:40 AM Kunwu Chan <chentao@xxxxxxxxxx> wrote:
>
> 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@xxxxxxxxxx>
> ---
> kernel/cred.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)

This seems reasonable to me, unless I see any objections I can pull
this via the LSM tree next week.

> diff --git a/kernel/cred.c b/kernel/cred.c
> index c033a201c808..02a96e9d9cfd 100644
> --- a/kernel/cred.c
> +++ b/kernel/cred.c
> @@ -606,8 +606,8 @@ int set_cred_ucounts(struct cred *new)
> void __init cred_init(void)
> {
> /* allocate a slab in which we can store credentials */
> - cred_jar = kmem_cache_create("cred_jar", sizeof(struct cred), 0,
> - SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_ACCOUNT, NULL);
> + cred_jar = KMEM_CACHE(cred,
> + SLAB_HWCACHE_ALIGN | SLAB_PANIC | SLAB_ACCOUNT);
> }
>
> /**
> --
> 2.39.2

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