linux-kernel - [PATCH v2 0/2] Fix the hibernation test

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <cover.1693972725.git.yu.c.chen@intel.com>
Date:   Wed,  6 Sep 2023 12:18:27 +0800
From:   Chen Yu <yu.c.chen@...el.com>
To:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Chenzhou Feng <chenzhoux.feng@...el.com>,
        Pengfei Xu <pengfei.xu@...el.com>,
        Chen Yu <yu.c.chen@...el.com>
Subject: [PATCH v2 0/2] Fix the hibernation test_resume's swapfile open mode

Fix the regression brought by
commit 5904de0d735b ("PM: hibernate: Do not get block device exclusively
in test_resume mode"), which incorrectly open the swapfile in a wrong
mode, and causes unexpected behavior during non-hibernation operation.

Fix it by really disabling exclusive mode under test_resume.

This is the v2 of the fix for a hibernation test_resume swapfile open issue.
Chenzhou found that v1 has a warning during the stress test. It was due to
broken open mode in swsusp_write(), fixes it in v2.

patch 1 is a renaming of the function parameter, to better reflects the swap
device open mode.
patch 2 is to fix the open mode on the swap device. 

v1: https://lore.kernel.org/lkml/20230823161329.7348-1-yu.c.chen@intel.com/

Chen Yu (2):
  PM: hibernate: Rename the function parameter from snapshot_test to
    exclusive
  PM: hibernate: Fix the exclusive get block device in test_resume mode

 kernel/power/hibernate.c | 12 ++++++------
 kernel/power/power.h     |  4 ++--
 kernel/power/swap.c      | 14 ++++++++------
 3 files changed, 16 insertions(+), 14 deletions(-)

-- 
2.25.1