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[PATCH v13 01/10] copy-on-read: support preadv/pwritev_part functions
From: |
Andrey Shinkevich |
Subject: |
[PATCH v13 01/10] copy-on-read: support preadv/pwritev_part functions |
Date: |
Wed, 2 Dec 2020 21:30:52 +0300 |
Add support for the recently introduced functions
bdrv_co_preadv_part()
and
bdrv_co_pwritev_part()
to the COR-filter driver.
Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---
block/copy-on-read.c | 28 ++++++++++++++++------------
1 file changed, 16 insertions(+), 12 deletions(-)
diff --git a/block/copy-on-read.c b/block/copy-on-read.c
index 2816e61..cb03e0f 100644
--- a/block/copy-on-read.c
+++ b/block/copy-on-read.c
@@ -74,21 +74,25 @@ static int64_t cor_getlength(BlockDriverState *bs)
}
-static int coroutine_fn cor_co_preadv(BlockDriverState *bs,
- uint64_t offset, uint64_t bytes,
- QEMUIOVector *qiov, int flags)
+static int coroutine_fn cor_co_preadv_part(BlockDriverState *bs,
+ uint64_t offset, uint64_t bytes,
+ QEMUIOVector *qiov,
+ size_t qiov_offset,
+ int flags)
{
- return bdrv_co_preadv(bs->file, offset, bytes, qiov,
- flags | BDRV_REQ_COPY_ON_READ);
+ return bdrv_co_preadv_part(bs->file, offset, bytes, qiov, qiov_offset,
+ flags | BDRV_REQ_COPY_ON_READ);
}
-static int coroutine_fn cor_co_pwritev(BlockDriverState *bs,
- uint64_t offset, uint64_t bytes,
- QEMUIOVector *qiov, int flags)
+static int coroutine_fn cor_co_pwritev_part(BlockDriverState *bs,
+ uint64_t offset,
+ uint64_t bytes,
+ QEMUIOVector *qiov,
+ size_t qiov_offset, int flags)
{
-
- return bdrv_co_pwritev(bs->file, offset, bytes, qiov, flags);
+ return bdrv_co_pwritev_part(bs->file, offset, bytes, qiov, qiov_offset,
+ flags);
}
@@ -137,8 +141,8 @@ static BlockDriver bdrv_copy_on_read = {
.bdrv_getlength = cor_getlength,
- .bdrv_co_preadv = cor_co_preadv,
- .bdrv_co_pwritev = cor_co_pwritev,
+ .bdrv_co_preadv_part = cor_co_preadv_part,
+ .bdrv_co_pwritev_part = cor_co_pwritev_part,
.bdrv_co_pwrite_zeroes = cor_co_pwrite_zeroes,
.bdrv_co_pdiscard = cor_co_pdiscard,
.bdrv_co_pwritev_compressed = cor_co_pwritev_compressed,
--
1.8.3.1
- [PATCH v13 00/10] Apply COR-filter to the block-stream permanently, Andrey Shinkevich, 2020/12/02
- [PATCH v13 04/10] qapi: add filter-node-name to block-stream, Andrey Shinkevich, 2020/12/02
- [PATCH v13 08/10] copy-on-read: skip non-guest reads if no copy needed, Andrey Shinkevich, 2020/12/02
- [PATCH v13 06/10] iotests: add #310 to test bottom node in COR driver, Andrey Shinkevich, 2020/12/02
- [PATCH v13 07/10] block: include supported_read_flags into BDS structure, Andrey Shinkevich, 2020/12/02
- [PATCH v13 05/10] qapi: create BlockdevOptionsCor structure for COR driver, Andrey Shinkevich, 2020/12/02
- [PATCH v13 01/10] copy-on-read: support preadv/pwritev_part functions,
Andrey Shinkevich <=
- [PATCH v13 03/10] copy-on-read: add filter drop function, Andrey Shinkevich, 2020/12/02
- [PATCH v13 02/10] block: add API function to insert a node, Andrey Shinkevich, 2020/12/02
- [PATCH v13 10/10] block: apply COR-filter to block-stream jobs, Andrey Shinkevich, 2020/12/02
- [PATCH v13 09/10] stream: skip filters when writing backing file name to QCOW2 header, Andrey Shinkevich, 2020/12/02
- Re: [PATCH v13 00/10] Apply COR-filter to the block-stream permanently, Vladimir Sementsov-Ogievskiy, 2020/12/04