diff options
| author | Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> | 2011-11-23 15:00:04 +0000 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2011-12-05 14:51:38 +0100 |
| commit | e94d13873334b1880746feca59ce84c0eabc1021 (patch) | |
| tree | ac5c043cae5dec3f226b29a5173ca8ce4b49867b /block | |
| parent | fb0490f69feb96b7e92457f176dc834ff0b00b09 (diff) | |
cow: use bdrv_co_is_allocated()
Now that bdrv_co_is_allocated() is available we can use it instead of
the synchronous bdrv_is_allocated() interface. This is a follow-up that
Kevin Wolf <kwolf@redhat.com> pointed out after applying the series that
introduces bdrv_co_is_allocated().
It is safe to make cow_read() a coroutine_fn because its only caller is
a coroutine_fn.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/cow.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/block/cow.c b/block/cow.c index 7ae887b670..586493c623 100644 --- a/block/cow.c +++ b/block/cow.c @@ -171,14 +171,14 @@ static int cow_update_bitmap(BlockDriverState *bs, int64_t sector_num, return error; } -static int cow_read(BlockDriverState *bs, int64_t sector_num, - uint8_t *buf, int nb_sectors) +static int coroutine_fn cow_read(BlockDriverState *bs, int64_t sector_num, + uint8_t *buf, int nb_sectors) { BDRVCowState *s = bs->opaque; int ret, n; while (nb_sectors > 0) { - if (bdrv_is_allocated(bs, sector_num, nb_sectors, &n)) { + if (bdrv_co_is_allocated(bs, sector_num, nb_sectors, &n)) { ret = bdrv_pread(bs->file, s->cow_sectors_offset + sector_num * 512, buf, n * 512); |