linux-kernel - Re: [PATCH] mm/slab.c: fix comments

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Date:   Thu, 7 Apr 2022 17:53:24 +0900
From:   Hyeonggon Yoo <42.hyeyoo@...il.com>
To:     Yixuan Cao <caoyixuan2019@...il.szu.edu.cn>
Cc:     akpm@...ux-foundation.org, cl@...ux.com, penberg@...nel.org,
        rientjes@...gle.com, iamjoonsoo.kim@....com, vbabka@...e.cz,
        roman.gushchin@...ux.dev, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm/slab.c: fix comments

On Thu, Apr 07, 2022 at 04:09:58PM +0800, Yixuan Cao wrote:
> While reading the source code,
> I noticed some language errors in the comments, so I fixed them.
> 
> Signed-off-by: Yixuan Cao <caoyixuan2019@...il.szu.edu.cn>
> ---
>  mm/slab.c | 12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/mm/slab.c b/mm/slab.c
> index 90b16c7ae01a..e882657c1494 100644
> --- a/mm/slab.c
> +++ b/mm/slab.c
> @@ -781,7 +781,7 @@ static inline int cache_free_alien(struct kmem_cache *cachep, void *objp)
>  	int slab_node = slab_nid(virt_to_slab(objp));
>  	int node = numa_mem_id();
>  	/*
> -	 * Make sure we are not freeing a object from another node to the array
> +	 * Make sure we are not freeing an object from another node to the array
>  	 * cache on this cpu.
>  	 */
>  	if (likely(node == slab_node))
> @@ -832,7 +832,7 @@ static int init_cache_node(struct kmem_cache *cachep, int node, gfp_t gfp)
>  
>  	/*
>  	 * The kmem_cache_nodes don't come and go as CPUs
> -	 * come and go.  slab_mutex is sufficient
> +	 * come and go.  slab_mutex provides sufficient
>  	 * protection here.
>  	 */
>  	cachep->node[node] = n;
> @@ -845,7 +845,7 @@ static int init_cache_node(struct kmem_cache *cachep, int node, gfp_t gfp)
>   * Allocates and initializes node for a node on each slab cache, used for
>   * either memory or cpu hotplug.  If memory is being hot-added, the kmem_cache_node
>   * will be allocated off-node since memory is not yet online for the new node.
> - * When hotplugging memory or a cpu, existing node are not replaced if
> + * When hotplugging memory or a cpu, existing nodes are not replaced if
>   * already in use.
>   *
>   * Must hold slab_mutex.
> @@ -1046,7 +1046,7 @@ int slab_prepare_cpu(unsigned int cpu)
>   * offline.
>   *
>   * Even if all the cpus of a node are down, we don't free the
> - * kmem_cache_node of any cache. This to avoid a race between cpu_down, and
> + * kmem_cache_node of any cache. This is to avoid a race between cpu_down, and
>   * a kmalloc allocation from another cpu for memory from the node of
>   * the cpu going down.  The kmem_cache_node structure is usually allocated from
>   * kmem_cache_create() and gets destroyed at kmem_cache_destroy().
> @@ -1890,7 +1890,7 @@ static bool set_on_slab_cache(struct kmem_cache *cachep,
>   * @flags: SLAB flags
>   *
>   * Returns a ptr to the cache on success, NULL on failure.
> - * Cannot be called within a int, but can be interrupted.
> + * Cannot be called within an int, but can be interrupted.
>   * The @ctor is run when new pages are allocated by the cache.
>   *
>   * The flags are
> @@ -3138,7 +3138,7 @@ static void *fallback_alloc(struct kmem_cache *cache, gfp_t flags)
>  }
>  
>  /*
> - * A interface to enable slab creation on nodeid
> + * An interface to enable slab creation on nodeid
>   */
>  static void *____cache_alloc_node(struct kmem_cache *cachep, gfp_t flags,
>  				int nodeid)
> -- 
> 2.17.1
> 
> 
> 
>

Acked-by: Hyeonggon Yoo <42.hyeyoo@...il.com>

Thanks!

-- 
Thanks,
Hyeonggon