From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
To: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>,
qemu-block@nongnu.org
Cc: qemu-devel@nongnu.org, kwolf@redhat.com, mreitz@redhat.com,
stefanha@redhat.com, fam@euphon.net, armbru@redhat.com,
jsnow@redhat.com, eblake@redhat.com, den@openvz.org
Subject: Re: [PATCH v13 08/10] copy-on-read: skip non-guest reads if no copy needed
Date: Thu, 3 Dec 2020 15:53:25 +0300 [thread overview]
Message-ID: <56a6e493-0f98-9aae-10b8-4406ca2656b0@virtuozzo.com> (raw)
In-Reply-To: <1606933861-297777-9-git-send-email-andrey.shinkevich@virtuozzo.com>
02.12.2020 21:30, Andrey Shinkevich wrote:
> If the flag BDRV_REQ_PREFETCH was set, skip idling read/write
> operations in COR-driver. It can be taken into account for the
> COR-algorithms optimization. That check is being made during the
> block stream job by the moment.
>
> Add the BDRV_REQ_PREFETCH flag to the supported_read_flags of the
> COR-filter.
>
> block: Modify the comment for the flag BDRV_REQ_PREFETCH as we are
> going to use it alone and pass it to the COR-filter driver for further
> processing.
>
> Signed-off-by: Andrey Shinkevich<andrey.shinkevich@virtuozzo.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
--
Best regards,
Vladimir
next prev parent reply other threads:[~2020-12-03 12:55 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-02 18:30 [PATCH v13 00/10] Apply COR-filter to the block-stream permanently Andrey Shinkevich via
2020-12-02 18:30 ` [PATCH v13 01/10] copy-on-read: support preadv/pwritev_part functions Andrey Shinkevich via
2020-12-02 18:30 ` [PATCH v13 02/10] block: add API function to insert a node Andrey Shinkevich via
2020-12-02 18:30 ` [PATCH v13 03/10] copy-on-read: add filter drop function Andrey Shinkevich via
2020-12-02 18:30 ` [PATCH v13 04/10] qapi: add filter-node-name to block-stream Andrey Shinkevich via
2020-12-02 18:30 ` [PATCH v13 05/10] qapi: create BlockdevOptionsCor structure for COR driver Andrey Shinkevich via
2020-12-02 18:30 ` [PATCH v13 06/10] iotests: add #310 to test bottom node in " Andrey Shinkevich via
2020-12-02 18:30 ` [PATCH v13 07/10] block: include supported_read_flags into BDS structure Andrey Shinkevich via
2020-12-02 18:30 ` [PATCH v13 08/10] copy-on-read: skip non-guest reads if no copy needed Andrey Shinkevich via
2020-12-03 12:53 ` Vladimir Sementsov-Ogievskiy [this message]
2020-12-02 18:31 ` [PATCH v13 09/10] stream: skip filters when writing backing file name to QCOW2 header Andrey Shinkevich via
2020-12-03 19:11 ` Vladimir Sementsov-Ogievskiy
2020-12-02 18:31 ` [PATCH v13 10/10] block: apply COR-filter to block-stream jobs Andrey Shinkevich via
2020-12-04 21:36 ` [PATCH v13 00/10] Apply COR-filter to the block-stream permanently Vladimir Sementsov-Ogievskiy
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