diff options
| author | Manos Pitsidianakis <el13635@mail.ntua.gr> | 2017-07-13 18:30:28 +0300 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2017-09-04 18:31:13 +0200 |
| commit | f7cc69b326850c34db5dca2f9f74898cd181f43a (patch) | |
| tree | ad7fd5018f1a5f3c903ba3ada403fc230dab4a6b /block/mirror.c | |
| parent | d8e12cd3227f0cb3b5558563f094088cfefb8f21 (diff) | |
block: add default implementations for bdrv_co_get_block_status()
bdrv_co_get_block_status_from_file() and
bdrv_co_get_block_status_from_backing() set *file to bs->file and
bs->backing respectively, so that bdrv_co_get_block_status() can recurse
to them. Future block drivers won't have to duplicate code to implement
this.
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Manos Pitsidianakis <el13635@mail.ntua.gr>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/mirror.c')
| -rw-r--r-- | block/mirror.c | 12 |
1 files changed, 1 insertions, 11 deletions
diff --git a/block/mirror.c b/block/mirror.c index 429751b9fe..6531652d73 100644 --- a/block/mirror.c +++ b/block/mirror.c @@ -1059,16 +1059,6 @@ static int coroutine_fn bdrv_mirror_top_flush(BlockDriverState *bs) return bdrv_co_flush(bs->backing->bs); } -static int64_t coroutine_fn bdrv_mirror_top_get_block_status( - BlockDriverState *bs, int64_t sector_num, int nb_sectors, int *pnum, - BlockDriverState **file) -{ - *pnum = nb_sectors; - *file = bs->backing->bs; - return BDRV_BLOCK_RAW | BDRV_BLOCK_OFFSET_VALID | - (sector_num << BDRV_SECTOR_BITS); -} - static int coroutine_fn bdrv_mirror_top_pwrite_zeroes(BlockDriverState *bs, int64_t offset, int bytes, BdrvRequestFlags flags) { @@ -1115,7 +1105,7 @@ static BlockDriver bdrv_mirror_top = { .bdrv_co_pwrite_zeroes = bdrv_mirror_top_pwrite_zeroes, .bdrv_co_pdiscard = bdrv_mirror_top_pdiscard, .bdrv_co_flush = bdrv_mirror_top_flush, - .bdrv_co_get_block_status = bdrv_mirror_top_get_block_status, + .bdrv_co_get_block_status = bdrv_co_get_block_status_from_backing, .bdrv_refresh_filename = bdrv_mirror_top_refresh_filename, .bdrv_close = bdrv_mirror_top_close, .bdrv_child_perm = bdrv_mirror_top_child_perm, |