From: Joe Thornber <thornber@redhat.com>
To: Akira Hayakawa <ruby.wktk@gmail.com>
Cc: ejt@redhat.com, Greg KH <gregkh@linuxfoundation.org>,
snitzer@redhat.com, dm-devel@redhat.com,
driverdev-devel@linuxdriverproject.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3] staging: writeboost: Add dm-writeboost
Date: Fri, 20 Feb 2015 16:17:59 +0000 [thread overview]
Message-ID: <20150220161759.GC4740@debian> (raw)
In-Reply-To: <54E75B70.1010007@gmail.com>
On Sat, Feb 21, 2015 at 01:06:08AM +0900, Akira Hayakawa wrote:
> The size is configurable but typically 512KB (that's the default).
>
> Refer to bio payload sounds really dangerous but it may be possible
> in some tricky way. but at the moment I am not sure how the
> implementation would be.
>
> Is there some fancy function that is like memcpy but actually "move"
> the ownership?
When building up your log chunk bio copy the bio_vecs (not the data)
from the original bios. You can't complete the original bios until
your log chunk has been written.
- Joe
next prev parent reply other threads:[~2015-02-20 16:17 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-01 8:44 [PATCH v3] staging: writeboost: Add dm-writeboost Akira Hayakawa
2015-01-18 0:09 ` Greg KH
2015-01-18 0:09 ` Greg KH
2015-02-20 8:44 ` Akira Hayakawa
2015-02-20 8:44 ` Akira Hayakawa
2015-02-20 15:06 ` Joe Thornber
2015-02-20 15:25 ` Akira Hayakawa
2015-02-20 15:50 ` Joe Thornber
2015-02-20 16:06 ` Akira Hayakawa
2015-02-20 16:17 ` Joe Thornber [this message]
2015-02-21 1:36 ` Akira Hayakawa
2015-02-21 1:36 ` Akira Hayakawa
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