From: Nicolas Saenz Julienne <nsaenzju@redhat.com>
To: Mel Gorman <mgorman@techsingularity.net>,
Andrew Morton <akpm@linux-foundation.org>
Cc: Marcelo Tosatti <mtosatti@redhat.com>,
Vlastimil Babka <vbabka@suse.cz>,
Michal Hocko <mhocko@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Linux-MM <linux-mm@kvack.org>
Subject: Re: [PATCH 4/6] mm/page_alloc: Remove unnecessary page == NULL check in rmqueue
Date: Fri, 13 May 2022 14:03:08 +0200 [thread overview]
Message-ID: <55aaf618497e7d0d369f773723b12e5dcfbdd27d.camel@redhat.com> (raw)
In-Reply-To: <20220512085043.5234-5-mgorman@techsingularity.net>
On Thu, 2022-05-12 at 09:50 +0100, Mel Gorman wrote:
> The VM_BUG_ON check for a valid page can be avoided with a simple
> change in the flow. The ZONE_BOOSTED_WATERMARK is unlikely in general
> and even more unlikely if the page allocation failed so mark the
> branch unlikely.
>
> Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
> Tested-by: Minchan Kim <minchan@kernel.org>
> Acked-by: Minchan Kim <minchan@kernel.org>
> ---
Reviewed-by: Nicolas Saenz Julienne <nsaenzju@redhat.com>
Thanks,
--
Nicolás Sáenz
next prev parent reply other threads:[~2022-05-13 12:03 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-12 8:50 [PATCH 0/6] Drain remote per-cpu directly v3 Mel Gorman
2022-05-12 8:50 ` [PATCH 1/6] mm/page_alloc: Add page->buddy_list and page->pcp_list Mel Gorman
2022-05-13 11:59 ` Nicolas Saenz Julienne
2022-05-19 9:36 ` Vlastimil Babka
2022-05-12 8:50 ` [PATCH 2/6] mm/page_alloc: Use only one PCP list for THP-sized allocations Mel Gorman
2022-05-19 9:45 ` Vlastimil Babka
2022-05-12 8:50 ` [PATCH 3/6] mm/page_alloc: Split out buddy removal code from rmqueue into separate helper Mel Gorman
2022-05-13 12:01 ` Nicolas Saenz Julienne
2022-05-19 9:52 ` Vlastimil Babka
2022-05-23 16:09 ` Qais Yousef
2022-05-24 11:55 ` Mel Gorman
2022-05-25 11:23 ` Qais Yousef
2022-05-12 8:50 ` [PATCH 4/6] mm/page_alloc: Remove unnecessary page == NULL check in rmqueue Mel Gorman
2022-05-13 12:03 ` Nicolas Saenz Julienne [this message]
2022-05-19 10:57 ` Vlastimil Babka
2022-05-19 12:13 ` Mel Gorman
2022-05-19 12:26 ` Vlastimil Babka
2022-05-12 8:50 ` [PATCH 5/6] mm/page_alloc: Protect PCP lists with a spinlock Mel Gorman
2022-05-13 12:22 ` Nicolas Saenz Julienne
2022-05-12 8:50 ` [PATCH 6/6] mm/page_alloc: Remotely drain per-cpu lists Mel Gorman
2022-05-12 19:37 ` Andrew Morton
2022-05-13 15:04 ` Mel Gorman
2022-05-13 15:19 ` Nicolas Saenz Julienne
2022-05-13 18:23 ` Mel Gorman
2022-05-17 12:57 ` Mel Gorman
2022-05-12 19:43 ` [PATCH 0/6] Drain remote per-cpu directly v3 Andrew Morton
2022-05-13 14:23 ` Mel Gorman
2022-05-13 19:38 ` Andrew Morton
2022-05-16 10:53 ` Mel Gorman
2022-05-13 12:24 ` Nicolas Saenz Julienne
2022-05-17 23:35 ` Qian Cai
2022-05-18 12:51 ` Mel Gorman
2022-05-18 16:27 ` Qian Cai
2022-05-18 17:15 ` Paul E. McKenney
2022-05-19 13:29 ` Qian Cai
2022-05-19 19:15 ` Paul E. McKenney
2022-05-19 21:05 ` Qian Cai
2022-05-19 21:29 ` Paul E. McKenney
2022-05-18 17:26 ` Marcelo Tosatti
2022-05-18 17:44 ` Marcelo Tosatti
2022-05-18 18:01 ` Nicolas Saenz Julienne
2022-05-26 17:19 ` Qian Cai
2022-05-27 8:39 ` Mel Gorman
2022-05-27 12:58 ` Qian Cai
-- strict thread matches above, loose matches on Subject: below --
2022-05-09 13:07 [RFC PATCH 0/6] Drain remote per-cpu directly v2 Mel Gorman
2022-05-09 13:08 ` [PATCH 4/6] mm/page_alloc: Remove unnecessary page == NULL check in rmqueue Mel Gorman
2022-04-20 9:59 [RFC PATCH 0/6] Drain remote per-cpu directly Mel Gorman
2022-04-20 9:59 ` [PATCH 4/6] mm/page_alloc: Remove unnecessary page == NULL check in rmqueue Mel Gorman
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