From: Milan Broz <mbroz@redhat.com>
To: Nikanth Karthikesan <knikanth@suse.de>
Cc: dm-devel@redhat.com, Mikulas Patocka <mpatocka@redhat.com>,
Alasdair G Kergon <agk@redhat.com>
Subject: Re: [PATCH] dm_crypt: Issue all previous bios before remapping barrier bio
Date: Mon, 01 Feb 2010 16:39:42 +0100 [thread overview]
Message-ID: <4B66F5BE.3030205@redhat.com> (raw)
In-Reply-To: <201002012049.27132.knikanth@suse.de>
On 02/01/2010 04:19 PM, Nikanth Karthikesan wrote:
> Before remapping a barrier bio, make sure that there are no un-issued
> pending I/O in the workqueue. Otherwise a dm_flush would simply add
> a barrier request to the underlying device, without issuing the bio's
> queued in the dm_crypt device.
This should not be needed. Core dm code waits for all bios submitted before
barrier requests.
Mikulas, could you verify it?
Milan
next prev parent reply other threads:[~2010-02-01 15:39 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-01 15:19 [PATCH] dm_crypt: Issue all previous bios before remapping barrier bio Nikanth Karthikesan
2010-02-01 15:39 ` Milan Broz [this message]
2010-02-02 12:47 ` Mikulas Patocka
2010-02-03 6:09 ` Nikanth Karthikesan
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4B66F5BE.3030205@redhat.com \
--to=mbroz@redhat.com \
--cc=agk@redhat.com \
--cc=dm-devel@redhat.com \
--cc=knikanth@suse.de \
--cc=mpatocka@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.