From: Josef Bacik <josef@toxicpanda.com>
To: David Sterba <dsterba@suse.com>
Cc: linux-btrfs@vger.kernel.org, bo.li.liu@oracle.com
Subject: Re: [PATCH v2] btrfs: submit superblock io with REQ_META and REQ_PRIO
Date: Mon, 21 Aug 2017 13:31:56 -0400 [thread overview]
Message-ID: <20170821173155.GC23807@destiny> (raw)
In-Reply-To: <20170821154227.13644-1-dsterba@suse.com>
On Mon, Aug 21, 2017 at 05:42:27PM +0200, David Sterba wrote:
> The superblock is also metadata of the filesystem so the relevant IO
> should be tagged as such. We also tag it as high priority, as it's the
> last block committed for metadata from a given transaction. Any delays
> would effectively block the whole transaction, also blocking any other
> operation holding the device_list_mutex.
>
> Signed-off-by: David Sterba <dsterba@suse.com>
Reviewed-by: Josef Bacik <jbacik@fb.com>
Thanks,
Josef
next prev parent reply other threads:[~2017-08-21 17:31 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-21 15:42 [PATCH v2] btrfs: submit superblock io with REQ_META and REQ_PRIO David Sterba
2017-08-21 17:31 ` Josef Bacik [this message]
2017-08-21 19:00 ` Liu Bo
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