From: Mike Kravetz <mike.kravetz@oracle.com>
To: Mina Almasry <almasrymina@google.com>,
Linux-MM <linux-mm@kvack.org>,
open list <linux-kernel@vger.kernel.org>
Cc: Axel Rasmussen <axelrasmussen@google.com>,
Peter Xu <peterx@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Mike Kravetz <mike.kravetz@oracle.com>
Subject: [PATCH 0/2] Track reserve map changes to restore on error
Date: Tue, 25 May 2021 16:31:32 -0700 [thread overview]
Message-ID: <20210525233134.246444-1-mike.kravetz@oracle.com> (raw)
In-Reply-To: <78359cf0-6e28-2aaa-d17e-6519b117b3db@oracle.com>
Here is a modification to the reservation tracking for fixup on errors.
It is a more general change, but should work for the hugetlb_mcopy_pte_atomic
case as well.
Perhaps use this as a prerequisite for your fix(es)? Pretty sure this
will eliminate the need for the call to hugetlb_unreserve_pages.
Mike Kravetz (2):
hugetlb: rename HPageRestoreReserve flag to HPageRestoreRsvCnt
hugetlb: add new hugetlb specific flag HPG_restore_rsv_map
fs/hugetlbfs/inode.c | 3 +-
include/linux/hugetlb.h | 17 +++++--
mm/hugetlb.c | 108 ++++++++++++++++++++++++++++------------
mm/userfaultfd.c | 14 +++---
4 files changed, 99 insertions(+), 43 deletions(-)
--
2.31.1
next prev parent reply other threads:[~2021-05-25 23:31 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-21 7:44 [PATCH v3] mm, hugetlb: fix resv_huge_pages underflow on UFFDIO_COPY Mina Almasry
2021-05-22 21:19 ` Andrew Morton
2021-05-22 21:32 ` Mina Almasry
2021-05-24 18:07 ` Mike Kravetz
2021-05-25 0:11 ` Mina Almasry
2021-05-25 0:45 ` Mike Kravetz
2021-05-25 23:31 ` Mike Kravetz [this message]
2021-05-25 23:31 ` [PATCH 1/2] hugetlb: rename HPageRestoreReserve flag to HPageRestoreRsvCnt Mike Kravetz
2021-05-27 2:49 ` Mina Almasry
2021-05-25 23:31 ` [PATCH 2/2] hugetlb: add new hugetlb specific flag HPG_restore_rsv_map Mike Kravetz
2021-05-27 2:58 ` Mina Almasry
2021-05-26 3:19 ` [External] [PATCH 0/2] Track reserve map changes to restore on error Muchun Song
2021-05-26 17:17 ` Mike Kravetz
2021-05-26 23:19 ` Mina Almasry
2021-05-27 2:48 ` Mina Almasry
2021-05-27 16:08 ` Mike Kravetz
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=20210525233134.246444-1-mike.kravetz@oracle.com \
--to=mike.kravetz@oracle.com \
--cc=akpm@linux-foundation.org \
--cc=almasrymina@google.com \
--cc=axelrasmussen@google.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=peterx@redhat.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).