linux-kernel - [GIT PULL] Btrfs update, part 2

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 for Android: free password hash cracker in your pocket

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

Message-Id: <cover.1636564333.git.dsterba@suse.com>
Date:   Wed, 10 Nov 2021 18:38:09 +0100
From:   David Sterba <dsterba@...e.com>
To:     torvalds@...ux-foundation.org
Cc:     David Sterba <dsterba@...e.com>, linux-btrfs@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [GIT PULL] Btrfs update, part 2

Hi,

here's a separate fix that depends on changes that landed last week (the
iomap + iov_iter merged as c03098d4b9ad).

The fix itself is for a deadlock when direct/buffered IO is done on a
mmaped file and a fault happens (details in the patch). There's a fstest
generic/647 that triggers the problem and makes testing hard.

No merge conflicts. Please pull, thanks.

----------------------------------------------------------------
The following changes since commit c03098d4b9ad76bca2966a8769dcfe59f7f85103:

  Merge tag 'gfs2-v5.15-rc5-mmap-fault' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2 (2021-11-02 12:25:03 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-5.16-deadlock-fix-tag

for you to fetch changes up to 51bd9563b6783de8315f38f7baed949e77c42311:

  btrfs: fix deadlock due to page faults during direct IO reads and writes (2021-11-09 13:46:07 +0100)

----------------------------------------------------------------
Filipe Manana (1):
      btrfs: fix deadlock due to page faults during direct IO reads and writes

 fs/btrfs/file.c | 139 +++++++++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 123 insertions(+), 16 deletions(-)