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| author | Eric Blake <eblake@redhat.com> | 2018-02-13 14:26:49 -0600 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2018-03-02 18:39:07 +0100 |
| commit | 05c33f1021f95bc18af153ea5669be57bba527e5 (patch) | |
| tree | def1ac6cca516a9c70623c6c279ce2a8d346e105 /block/null.c | |
| parent | 92809c36009de25d4f41e88f572bca3cb26b7387 (diff) | |
| download | qemu-05c33f1021f95bc18af153ea5669be57bba527e5.zip qemu-05c33f1021f95bc18af153ea5669be57bba527e5.tar.gz qemu-05c33f1021f95bc18af153ea5669be57bba527e5.tar.bz2 | |
null: Switch to .bdrv_co_block_status()
We are gradually moving away from sector-based interfaces, towards
byte-based. Update the null driver accordingly.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/null.c')
| -rw-r--r-- | block/null.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/block/null.c b/block/null.c index 214d394..806a863 100644 --- a/block/null.c +++ b/block/null.c @@ -223,22 +223,23 @@ static int null_reopen_prepare(BDRVReopenState *reopen_state, return 0; } -static int64_t coroutine_fn null_co_get_block_status(BlockDriverState *bs, - int64_t sector_num, - int nb_sectors, int *pnum, - BlockDriverState **file) +static int coroutine_fn null_co_block_status(BlockDriverState *bs, + bool want_zero, int64_t offset, + int64_t bytes, int64_t *pnum, + int64_t *map, + BlockDriverState **file) { BDRVNullState *s = bs->opaque; - off_t start = sector_num * BDRV_SECTOR_SIZE; + int ret = BDRV_BLOCK_OFFSET_VALID; - *pnum = nb_sectors; + *pnum = bytes; + *map = offset; *file = bs; if (s->read_zeroes) { - return BDRV_BLOCK_OFFSET_VALID | start | BDRV_BLOCK_ZERO; - } else { - return BDRV_BLOCK_OFFSET_VALID | start; + ret |= BDRV_BLOCK_ZERO; } + return ret; } static void null_refresh_filename(BlockDriverState *bs, QDict *opts) @@ -270,7 +271,7 @@ static BlockDriver bdrv_null_co = { .bdrv_co_flush_to_disk = null_co_flush, .bdrv_reopen_prepare = null_reopen_prepare, - .bdrv_co_get_block_status = null_co_get_block_status, + .bdrv_co_block_status = null_co_block_status, .bdrv_refresh_filename = null_refresh_filename, }; @@ -290,7 +291,7 @@ static BlockDriver bdrv_null_aio = { .bdrv_aio_flush = null_aio_flush, .bdrv_reopen_prepare = null_reopen_prepare, - .bdrv_co_get_block_status = null_co_get_block_status, + .bdrv_co_block_status = null_co_block_status, .bdrv_refresh_filename = null_refresh_filename, }; |