lkml.org 
[lkml]   [2014]   [Jun]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2 08/10] mm, cma: clean-up cma allocation error path
On 06/12/2014 11:21 AM, Joonsoo Kim wrote:
> We can remove one call sites for clear_cma_bitmap() if we first
> call it before checking error number.
>
> Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>

Reviewed-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>

>
> diff --git a/mm/cma.c b/mm/cma.c
> index 1e1b017..01a0713 100644
> --- a/mm/cma.c
> +++ b/mm/cma.c
> @@ -282,11 +282,12 @@ struct page *cma_alloc(struct cma *cma, int count, unsigned int align)
> if (ret == 0) {
> page = pfn_to_page(pfn);
> break;
> - } else if (ret != -EBUSY) {
> - clear_cma_bitmap(cma, pfn, count);
> - break;
> }
> +
> clear_cma_bitmap(cma, pfn, count);
> + if (ret != -EBUSY)
> + break;
> +
> pr_debug("%s(): memory range at %p is busy, retrying\n",
> __func__, pfn_to_page(pfn));
> /* try again with a bit different memory target */
>


--
Thanks.
Zhang Yanfei


\
 
 \ /
  Last update: 2014-06-12 11:21    [W:0.254 / U:11.276 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site