From: Mike Kravetz <mike.kravetz@oracle.com>
To: linux-mm@kvack.org, linux-kernel@vger.kernel.org
Cc: Naoya Horiguchi <naoya.horiguchi@linux.dev>,
James Houghton <jthoughton@google.com>,
Peter Xu <peterx@redhat.com>,
David Hildenbrand <david@redhat.com>,
Michal Hocko <mhocko@suse.com>, Yang Shi <shy828301@gmail.com>,
Vishal Moola <vishal.moola@gmail.com>,
Matthew Wilcox <willy@infradead.org>,
Muchun Song <songmuchun@bytedance.com>,
Andrew Morton <akpm@linux-foundation.org>,
Mike Kravetz <mike.kravetz@oracle.com>
Subject: [PATCH 0/2] Fixes for hugetlb mapcount at most 1 for shared PMDs
Date: Thu, 26 Jan 2023 14:27:19 -0800 [thread overview]
Message-ID: <20230126222721.222195-1-mike.kravetz@oracle.com> (raw)
This issue of mapcount in hugetlb pages referenced by shared PMDs was
discussed in [1]. The following two patches address user visible
behavior caused by this issue.
Patches apply to mm-stable as they can also target stable backports.
Ongoing folio conversions cause context conflicts in the second patch
when applied to mm-unstable/linux-next. I can create separate patch(es)
if people agree with these.
[1] https://lore.kernel.org/linux-mm/Y9BF+OCdWnCSilEu@monkey/
Mike Kravetz (2):
mm: hugetlb: proc: check for hugetlb shared PMD in /proc/PID/smaps
migrate: hugetlb: Check for hugetlb shared PMD in node migration
fs/proc/task_mmu.c | 10 ++++++++--
include/linux/hugetlb.h | 12 ++++++++++++
mm/mempolicy.c | 3 ++-
3 files changed, 22 insertions(+), 3 deletions(-)
--
2.39.1
next reply other threads:[~2023-01-26 22:27 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-26 22:27 Mike Kravetz [this message]
2023-01-26 22:27 ` [PATCH 1/2] mm: hugetlb: proc: check for hugetlb shared PMD in /proc/PID/smaps Mike Kravetz
2023-01-27 16:23 ` David Hildenbrand
2023-01-27 23:04 ` Andrew Morton
2023-01-28 1:12 ` Mike Kravetz
2023-01-30 12:36 ` Michal Hocko
2023-01-30 22:08 ` Mike Kravetz
2023-02-01 7:47 ` Michal Hocko
2023-02-01 21:05 ` Mike Kravetz
2023-02-03 13:40 ` Michal Hocko
2023-02-03 20:16 ` Mike Kravetz
2023-02-13 18:01 ` Michal Hocko
2023-02-14 1:40 ` Mike Kravetz
2023-01-26 22:27 ` [PATCH 2/2] migrate: hugetlb: Check for hugetlb shared PMD in node migration Mike Kravetz
2023-01-27 16:23 ` David Hildenbrand
2023-01-26 22:47 ` [PATCH 0/2] Fixes for hugetlb mapcount at most 1 for shared PMDs Andrew Morton
2023-01-26 22:48 ` Peter Xu
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