linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Chuck Lever III <chuck.lever@oracle.com>
To: Mel Gorman <mgorman@techsingularity.net>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Desmond Cheong Zhi Xi <desmondcheongzx@gmail.com>,
	Zhang Qiang <Qiang.Zhang@windriver.com>,
	Yanfei Xu <yanfei.xu@windriver.com>,
	Jesper Dangaard Brouer <brouer@redhat.com>,
	Matteo Croce <mcroce@microsoft.com>,
	Linux-MM <linux-mm@kvack.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/4] mm/page_alloc: correct return value when failing at preparing
Date: Tue, 13 Jul 2021 14:21:58 +0000	[thread overview]
Message-ID: <E7C50307-24D8-4D75-B65E-0D7CA7C08048@oracle.com> (raw)
In-Reply-To: <20210713135625.7615-3-mgorman@techsingularity.net>



> On Jul 13, 2021, at 9:56 AM, Mel Gorman <mgorman@techsingularity.net> wrote:
> 
> From: Yanfei Xu <yanfei.xu@windriver.com>
> 
> If the array passed in is already partially populated, we should
> return "nr_populated" even failing at preparing arguments stage.
> 
> Signed-off-by: Yanfei Xu <yanfei.xu@windriver.com>
> Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
> Link: https://lore.kernel.org/r/20210709102855.55058-1-yanfei.xu@windriver.com
> ---
> mm/page_alloc.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> index 6ef86f338151..803414ce9264 100644
> --- a/mm/page_alloc.c
> +++ b/mm/page_alloc.c
> @@ -5255,7 +5255,7 @@ unsigned long __alloc_pages_bulk(gfp_t gfp, int preferred_nid,
> 	gfp &= gfp_allowed_mask;
> 	alloc_gfp = gfp;
> 	if (!prepare_alloc_pages(gfp, 0, preferred_nid, nodemask, &ac, &alloc_gfp, &alloc_flags))
> -		return 0;
> +		return nr_populated;

Can you restore the hunk in patch 3/4 that changes this "return nr_populated;"
to "goto out;" ?


> 	gfp = alloc_gfp;
> 
> 	/* Find an allowed local zone that meets the low watermark. */
> -- 
> 2.26.2
> 

--
Chuck Lever




  reply	other threads:[~2021-07-13 14:22 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-13 13:56 [PATCH 0/4] 5.14-rc1 mm/page_alloc.c stray patches Mel Gorman
2021-07-13 13:56 ` [PATCH 1/4] mm/page_alloc: Avoid page allocator recursion with pagesets.lock held Mel Gorman
2021-07-13 13:56 ` [PATCH 2/4] mm/page_alloc: correct return value when failing at preparing Mel Gorman
2021-07-13 14:21   ` Chuck Lever III [this message]
2021-07-13 14:56     ` Mel Gorman
2021-07-13 15:01       ` Chuck Lever III
2021-07-13 15:21         ` Mel Gorman
2021-07-13 13:56 ` [PATCH 3/4] mm/page_alloc: Further fix __alloc_pages_bulk() return value Mel Gorman
2021-07-13 13:56 ` [PATCH 4/4] Revert "mm/page_alloc: make should_fail_alloc_page() static" Mel Gorman
2021-07-15  6:34   ` Christoph Hellwig
2021-07-15  7:36     ` Mel Gorman
2021-07-13 15:20 [PATCH 0/4 v2] 5.14-rc1 mm/page_alloc.c stray patches Mel Gorman
2021-07-13 15:20 ` [PATCH 2/4] mm/page_alloc: correct return value when failing at preparing Mel Gorman

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=E7C50307-24D8-4D75-B65E-0D7CA7C08048@oracle.com \
    --to=chuck.lever@oracle.com \
    --cc=Qiang.Zhang@windriver.com \
    --cc=akpm@linux-foundation.org \
    --cc=brouer@redhat.com \
    --cc=desmondcheongzx@gmail.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=mcroce@microsoft.com \
    --cc=mgorman@techsingularity.net \
    --cc=yanfei.xu@windriver.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).