From: Manos Pitsidianakis <el13635@mail.ntua.gr>
To: Alberto Garcia <berto@igalia.com>
Cc: qemu-devel@nongnu.org, Kevin Wolf <kwolf@redhat.com>,
qemu-block@nongnu.org, Max Reitz <mreitz@redhat.com>,
Stefan Hajnoczi <stefanha@redhat.com>,
"Denis V . Lunev" <den@openvz.org>
Subject: Re: [Qemu-devel] [PATCH v2 6/7] qcow2: Pass a QEMUIOVector to do_perform_cow_{read, write}()
Date: Wed, 7 Jun 2017 19:20:54 +0300 [thread overview]
Message-ID: <20170607162054.mbo2nxgi4zd4kqk6@postretch> (raw)
In-Reply-To: <ab53bc08e26b3e4cc5b1a14eee9e64fd0e03871d.1496844254.git.berto@igalia.com>
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On Wed, Jun 07, 2017 at 05:08:27PM +0300, Alberto Garcia wrote:
>Instead of passing a single buffer pointer to do_perform_cow_write(),
>pass a QEMUIOVector. This will allow us to merge the write requests
>for the COW regions and the actual data into a single one.
>
>Although do_perform_cow_read() does not strictly need to change its
>API, we're doing it here as well for consistency.
>
>Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Manos Pitsidianakis <el13635@mail.ntua.gr>
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next prev parent reply other threads:[~2017-06-07 16:21 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-07 14:08 [Qemu-devel] [PATCH v2 0/7] qcow2: Reduce the number of I/O ops when doing COW Alberto Garcia
2017-06-07 14:08 ` [Qemu-devel] [PATCH v2 1/7] qcow2: Remove unused Error variable in do_perform_cow() Alberto Garcia
2017-06-07 15:44 ` Eric Blake
2017-06-07 14:08 ` [Qemu-devel] [PATCH v2 2/7] qcow2: Use unsigned int for both members of Qcow2COWRegion Alberto Garcia
2017-06-07 16:02 ` Eric Blake
2017-06-08 13:06 ` Alberto Garcia
2017-06-08 13:38 ` Eric Blake
2017-06-07 14:08 ` [Qemu-devel] [PATCH v2 3/7] qcow2: Make perform_cow() call do_perform_cow() twice Alberto Garcia
2017-06-07 21:43 ` Eric Blake
2017-06-08 7:09 ` Alberto Garcia
2017-06-07 14:08 ` [Qemu-devel] [PATCH v2 4/7] qcow2: Split do_perform_cow() into _read(), _encrypt() and _write() Alberto Garcia
2017-06-09 14:53 ` Eric Blake
2017-06-12 13:00 ` Alberto Garcia
2017-06-07 14:08 ` [Qemu-devel] [PATCH v2 5/7] qcow2: Allow reading both COW regions with only one request Alberto Garcia
2017-06-07 14:08 ` [Qemu-devel] [PATCH v2 6/7] qcow2: Pass a QEMUIOVector to do_perform_cow_{read, write}() Alberto Garcia
2017-06-07 16:20 ` Manos Pitsidianakis [this message]
2017-06-16 15:31 ` Kevin Wolf
2017-06-07 14:08 ` [Qemu-devel] [PATCH v2 7/7] qcow2: Merge the writing of the COW regions with the guest data Alberto Garcia
2017-06-16 15:31 ` Kevin Wolf
2017-06-19 11:50 ` Alberto Garcia
2017-06-16 15:31 ` [Qemu-devel] [PATCH v2 0/7] qcow2: Reduce the number of I/O ops when doing COW Kevin Wolf
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