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From: Jens Axboe <axboe@kernel.dk>
To: Jan Kara <jack@suse.cz>, linux-fsdevel@vger.kernel.org
Cc: linux-ext4@vger.kernel.org, linux-block@vger.kernel.org,
	Christoph Hellwig <hch@infradead.org>, yebin <yebin10@huawei.com>,
	Andreas Dilger <adilger@dilger.ca>
Subject: Re: [PATCH 0/2 v2] bdev: Avoid discarding buffers under a filesystem
Date: Mon, 7 Sep 2020 10:24:01 -0600	[thread overview]
Message-ID: <2e287fe0-b963-0143-2a3f-617f32a67f76@kernel.dk> (raw)
In-Reply-To: <20200907103549.GA20428@quack2.suse.cz>

On 9/7/20 4:35 AM, Jan Kara wrote:
> Hello!
> 
> On Fri 04-09-20 10:58:50, Jan Kara wrote:
>> this patch set fixes problems when buffer heads are discarded under a
>> live filesystem (which can lead to all sorts of issues like crashes in case
>> of ext4). Patch 1 drops some stale buffer invalidation code, patch 2
>> temporarily gets exclusive access to the block device for the duration of
>> buffer cache handling to avoid interfering with other exclusive bdev user.
>> The patch fixes the problems for me and pass xfstests for ext4.
>>
>> Changes since v1:
>> * Check for exclusive access to the bdev instead of for the presence of
>>   superblock
> 
> Jens, now that Christoph has reviewed the patches (thanks Christoph!), can
> you pick up the patches to your tree please? Thanks!

Yep, I applied them for 5.10. Thanks!

-- 
Jens Axboe


      reply	other threads:[~2020-09-07 16:24 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-04  8:58 Jan Kara
2020-09-04  8:58 ` [PATCH 1/2] fs: Don't invalidate page buffers in block_write_full_page() Jan Kara
2020-09-07  7:12   ` Christoph Hellwig
2020-09-04  8:58 ` [PATCH 2/2] block: Do not discard buffers under a mounted filesystem Jan Kara
2020-09-07  7:12   ` Christoph Hellwig
2020-09-07 10:35 ` [PATCH 0/2 v2] bdev: Avoid discarding buffers under a filesystem Jan Kara
2020-09-07 16:24   ` Jens Axboe [this message]

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