linux-kernel - Re: [PATCH 2/9] mm: vmalloc: Rename adjust_va_to_fit

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Message-ID: <7afd7647-15c2-4398-89a6-ed50b4115b84@lucifer.local>
Date:   Sat, 27 May 2023 22:50:22 +0100
From:   Lorenzo Stoakes <lstoakes@...il.com>
To:     "Uladzislau Rezki (Sony)" <urezki@...il.com>
Cc:     linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>,
        LKML <linux-kernel@...r.kernel.org>, Baoquan He <bhe@...hat.com>,
        Christoph Hellwig <hch@...radead.org>,
        Matthew Wilcox <willy@...radead.org>,
        "Liam R . Howlett" <Liam.Howlett@...cle.com>,
        Dave Chinner <david@...morbit.com>,
        "Paul E . McKenney" <paulmck@...nel.org>,
        Joel Fernandes <joel@...lfernandes.org>,
        Oleksiy Avramchenko <oleksiy.avramchenko@...y.com>
Subject: Re: [PATCH 2/9] mm: vmalloc: Rename adjust_va_to_fit_type() function

On Mon, May 22, 2023 at 01:08:42PM +0200, Uladzislau Rezki (Sony) wrote:
> This patch renames the adjust_va_to_fit_type() function
> to a shorter variant and more expressive. A new name is
> va_clip().
>
> There is no a functional change as a result of this patch.

Small nit - I think:-

'This patch renames the adjust_va_to_fit_type() function to va_clip() which
is shorter and more expressive.'

Reads better here.

>
> Signed-off-by: Uladzislau Rezki (Sony) <urezki@...il.com>
> ---
>  mm/vmalloc.c | 13 ++++++-------
>  1 file changed, 6 insertions(+), 7 deletions(-)
>
> diff --git a/mm/vmalloc.c b/mm/vmalloc.c
> index 409285b68a67..5f900efec6a9 100644
> --- a/mm/vmalloc.c
> +++ b/mm/vmalloc.c
> @@ -1383,9 +1383,9 @@ classify_va_fit_type(struct vmap_area *va,
>  }
>
>  static __always_inline int
> -adjust_va_to_fit_type(struct rb_root *root, struct list_head *head,
> -		      struct vmap_area *va, unsigned long nva_start_addr,
> -		      unsigned long size)
> +va_clip(struct rb_root *root, struct list_head *head,
> +	struct vmap_area *va, unsigned long nva_start_addr,
> +	unsigned long size)
>  {
>  	struct vmap_area *lva = NULL;
>  	enum fit_type type = classify_va_fit_type(va, nva_start_addr, size);
> @@ -1501,7 +1501,7 @@ va_alloc(struct vmap_area *va,
>  		return vend;
>
>  	/* Update the free vmap_area. */
> -	ret = adjust_va_to_fit_type(root, head, va, nva_start_addr, size);
> +	ret = va_clip(root, head, va, nva_start_addr, size);
>  	if (WARN_ON_ONCE(ret))
>  		return vend;
>
> @@ -3979,9 +3979,8 @@ struct vm_struct **pcpu_get_vm_areas(const unsigned long *offsets,
>  			/* It is a BUG(), but trigger recovery instead. */
>  			goto recovery;
>
> -		ret = adjust_va_to_fit_type(&free_vmap_area_root,
> -					    &free_vmap_area_list,
> -					    va, start, size);
> +		ret = va_clip(&free_vmap_area_root,
> +			&free_vmap_area_list, va, start, size);
>  		if (WARN_ON_ONCE(unlikely(ret)))
>  			/* It is a BUG(), but trigger recovery instead. */
>  			goto recovery;
> --
> 2.30.2
>

Otherwise,

Reviewed-by: Lorenzo Stoakes <lstoakes@...il.com>