linux-kernel - Re: [PATCH v3 0/2] Fixes for fscache volume operations

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-prev] [day] [month] [year] [list]

Message-ID: <70586435-8c17-6da7-2971-3fbb3ebe6036@huaweicloud.com>
Date:   Mon, 30 Jan 2023 18:56:12 +0800
From:   Hou Tao <houtao@...weicloud.com>
To:     linux-cachefs@...hat.com, David Howells <dhowells@...hat.com>
Cc:     Jeff Layton <jlayton@...nel.org>, linux-erofs@...ts.ozlabs.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jingbo Xu <jefflexu@...ux.alibaba.com>,
        "houtao1@...wei.com" <houtao1@...wei.com>
Subject: Re: [PATCH v3 0/2] Fixes for fscache volume operations

Hi David,

Could you please pick it up for v6.2 ?

On 1/13/2023 7:52 PM, Hou Tao wrote:
> From: Hou Tao <houtao1@...wei.com>
>
> Hi,
>
> The patchset includes two fixes for fscache volume operations: patch 1
> fixes the hang problem during volume acquisition when the volume
> acquisition process waits for the freeing of relinquished volume, patch
> 2 adds the missing memory barrier in fscache_create_volume_work() and it
> is spotted through code review when checking whether or not these is
> missing smp_mb() before invoking wake_up_bit().
>
> Comments are always welcome.
>
> Chang Log:
> v3:
>  * Use clear_and_wake_up_bit() helper (Suggested by Jingbo Xu)
>  * Tidy up commit message and add Reviewed-by tag
>
> v2: https://listman.redhat.com/archives/linux-cachefs/2022-December/007402.html
>  * rebased on v6.1-rc1
>  * Patch 1: use wait_on_bit() instead (Suggested by David)
>  * Patch 2: add the missing smp_mb() in fscache_create_volume_work()
>
> v1: https://listman.redhat.com/archives/linux-cachefs/2022-December/007384.html
>
>
> Hou Tao (2):
>   fscache: Use wait_on_bit() to wait for the freeing of relinquished
>     volume
>   fscache: Use clear_and_wake_up_bit() in fscache_create_volume_work()
>
>  fs/fscache/volume.c | 14 +++++++-------
>  1 file changed, 7 insertions(+), 7 deletions(-)
>