From: Oscar Salvador <osalvador@suse.de>
To: Michal Hocko <mhocko@kernel.org>
Cc: Wei Yang <richard.weiyang@gmail.com>,
akpm@linux-foundation.org, vbabka@suse.cz,
pavel.tatashin@microsoft.com, rppt@linux.vnet.ibm.com,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] mm, page_alloc: Fix has_unmovable_pages for HugePages
Date: Thu, 20 Dec 2018 13:49:28 +0100 [thread overview]
Message-ID: <20181220124925.itwuuacgztpgsk7s@d104.suse.de> (raw)
In-Reply-To: <20181220091228.GB14234@dhcp22.suse.cz>
On Thu, Dec 20, 2018 at 10:12:28AM +0100, Michal Hocko wrote:
> > <--
> > skip_pages = (1 << compound_order(head)) - (page - head);
> > iter = skip_pages - 1;
> > --
> >
> > which looks more simple IMHO.
>
> Agreed!
Andrew, can you please apply the next diff chunk on top of the patch:
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 4812287e56a0..978576d93783 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -8094,7 +8094,7 @@ bool has_unmovable_pages(struct zone *zone, struct page *page, int count,
goto unmovable;
skip_pages = (1 << compound_order(head)) - (page - head);
- iter = round_up(iter + 1, skip_pages) - 1;
+ iter = skip_pages - 1;
continue;
}
Thanks!
--
Oscar Salvador
SUSE L3
next prev parent reply other threads:[~2018-12-20 12:49 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-17 22:51 [PATCH v2] mm, page_alloc: Fix has_unmovable_pages for HugePages Oscar Salvador
2018-12-17 23:07 ` Andrew Morton
2018-12-18 7:36 ` Michal Hocko
2018-12-18 21:46 ` Andrew Morton
2018-12-18 21:51 ` Oscar Salvador
2018-12-19 14:25 ` Wei Yang
2018-12-19 14:28 ` Wei Yang
2018-12-19 23:39 ` Oscar Salvador
2018-12-20 9:12 ` Michal Hocko
2018-12-20 12:49 ` Oscar Salvador [this message]
2018-12-20 13:06 ` Michal Hocko
2018-12-20 13:41 ` Oscar Salvador
2018-12-20 14:21 ` Oscar Salvador
2018-12-20 14:39 ` Michal Hocko
2018-12-20 15:37 ` Oscar Salvador
2018-12-20 15:32 ` Wei Yang
2018-12-20 15:32 ` Wei Yang
2018-12-20 15:52 ` Oscar Salvador
2018-12-20 13:08 ` Wei Yang
2018-12-20 13:49 ` Oscar Salvador
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