diff options
| author | Andrey Shinkevich <andrey.shinkevich@virtuozzo.com> | 2020-12-16 09:16:51 +0300 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2021-01-26 11:26:54 +0100 |
| commit | 1252e03b8e6ff56f53bd826e1ceeb21ab4858a92 (patch) | |
| tree | 87b701fd0ec3ea644b759f769eabf111d8a7c4b7 /block | |
| parent | 0c8de0a1330f7088b6f6659e92e8b23c8a1e2137 (diff) | |
| download | qemu-1252e03b8e6ff56f53bd826e1ceeb21ab4858a92.zip qemu-1252e03b8e6ff56f53bd826e1ceeb21ab4858a92.tar.gz qemu-1252e03b8e6ff56f53bd826e1ceeb21ab4858a92.tar.bz2 | |
copy-on-read: support preadv/pwritev_part functions
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>
Message-Id: <20201216061703.70908-2-vsementsov@virtuozzo.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/copy-on-read.c | 28 |
1 files 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, |