From: Andrew Morton <akpm@linux-foundation.org>
To: Barry Song <song.bao.hua@hisilicon.com>
Cc: <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>,
<linuxarm@huawei.com>, Mike Kravetz <mike.kravetz@oracle.com>,
Jonathan Cameron <jonathan.cameron@huawei.com>,
Roman Gushchin <guro@fb.com>
Subject: Re: [PATCH v3] mm/hugetlb: avoid hardcoding while checking if cma is enable
Date: Tue, 7 Jul 2020 12:56:41 -0700 [thread overview]
Message-ID: <20200707125641.dbd2ccd63f525aa5870069d8@linux-foundation.org> (raw)
In-Reply-To: <20200707040204.30132-1-song.bao.hua@hisilicon.com>
On Tue, 7 Jul 2020 16:02:04 +1200 Barry Song <song.bao.hua@hisilicon.com> wrote:
> hugetlb_cma[0] can be NULL due to various reasons, for example, node0 has
> no memory. so NULL hugetlb_cma[0] doesn't necessarily mean cma is not
> enabled. gigantic pages might have been reserved on other nodes.
I'm trying to figure out whether this should be backported into 5.7.1,
but the changelog doesn't describe any known user-visible effects of
the bug. Are there any?
next prev parent reply other threads:[~2020-07-07 19:56 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-07 4:02 Barry Song
2020-07-07 8:18 ` Mike Rapoport
2020-07-07 19:56 ` Andrew Morton [this message]
2020-07-08 17:45 ` Mike Kravetz
2020-07-08 18:46 ` Roman Gushchin
2020-07-08 22:11 ` Song Bao Hua (Barry Song)
2020-07-09 18:58 ` Mike Kravetz
2020-07-09 23:45 ` Song Bao Hua (Barry Song)
2020-07-10 0:24 ` Mike Kravetz
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