linux-kernel - Re: [PATCH] mm/vmalloc: Move free_vm_area(area) from the __vmalloc_area_node function to the __vmalloc_node_range

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Message-ID: <Z8bMDi1TIlCaec2X@pc636>
Date: Tue, 4 Mar 2025 10:46:54 +0100
From: Uladzislau Rezki <urezki@...il.com>
To: Liu Ye <liuye@...inos.cn>
Cc: akpm@...ux-foundation.org, urezki@...il.com, hch@...radead.org,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm/vmalloc: Move free_vm_area(area) from the
 __vmalloc_area_node function to the __vmalloc_node_range_noprof function

On Mon, Mar 03, 2025 at 09:57:02AM +0800, Liu Ye wrote:
> Moved free_vm_area from the __vmalloc_area_node function to the
> __vmalloc_node_range_noprof function so that allocation and freeing
> of the area can be paired in one function for better readability.
> 
> Signed-off-by: Liu Ye <liuye@...inos.cn>
> ---
>  mm/vmalloc.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/mm/vmalloc.c b/mm/vmalloc.c
> index a6e7acebe9ad..dc658d4af181 100644
> --- a/mm/vmalloc.c
> +++ b/mm/vmalloc.c
> @@ -3651,7 +3651,6 @@ static void *__vmalloc_area_node(struct vm_struct *area, gfp_t gfp_mask,
>  		warn_alloc(gfp_mask, NULL,
>  			"vmalloc error: size %lu, failed to allocated page array size %lu",
>  			nr_small_pages * PAGE_SIZE, array_size);
> -		free_vm_area(area);
>  		return NULL;
>  	}
>  
> @@ -3844,8 +3843,10 @@ void *__vmalloc_node_range_noprof(unsigned long size, unsigned long align,
>  
>  	/* Allocate physical pages and map them into vmalloc space. */
>  	ret = __vmalloc_area_node(area, gfp_mask, prot, shift, node);
> -	if (!ret)
> +	if (!ret) {
> +		free_vm_area(area);
>  		goto fail;
> +	}
>  
>  	/*
>  	 * Mark the pages as accessible, now that they are mapped.
> -- 
> 2.25.1
> 
This one looks good to me:

Reviewed-by: Uladzislau Rezki (Sony) <urezki@...il.com>

--
Uladzislau Rezki