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block/block-copy: add block_copy_reset() 

Split block_copy_reset() out of block_copy_reset_unallocated() to be
used separately later.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220303194349.2304213-6-vsementsov@virtuozzo.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2022-03-03 20:43:38 +01:00 committed by Hanna Reitz
parent 5f3a3cd7f0
commit 177541e671
2 changed files with 14 additions and 8 deletions
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21
block/block-copy.c
View File

@ -692,6 +692,18 @@ static int block_copy_is_cluster_allocated(BlockCopyState *s, int64_t offset,
}
}
void block_copy_reset(BlockCopyState *s, int64_t offset, int64_t bytes)
{
QEMU_LOCK_GUARD(&s->lock);
bdrv_reset_dirty_bitmap(s->copy_bitmap, offset, bytes);
if (s->progress) {
progress_set_remaining(s->progress,
bdrv_get_dirty_count(s->copy_bitmap) +
s->in_flight_bytes);
}
}
/*
* Reset bits in copy_bitmap starting at offset if they represent unallocated
* data in the image. May reset subsequent contiguous bits.
@ -712,14 +724,7 @@ int64_t block_copy_reset_unallocated(BlockCopyState *s,
bytes = clusters * s->cluster_size;
if (!ret) {
qemu_co_mutex_lock(&s->lock);
bdrv_reset_dirty_bitmap(s->copy_bitmap, offset, bytes);
if (s->progress) {
progress_set_remaining(s->progress,
bdrv_get_dirty_count(s->copy_bitmap) +
s->in_flight_bytes);
}
qemu_co_mutex_unlock(&s->lock);
block_copy_reset(s, offset, bytes);
}
*count = bytes;

1
include/block/block-copy.h
View File

@ -35,6 +35,7 @@ void block_copy_set_progress_meter(BlockCopyState *s, ProgressMeter *pm);
void block_copy_state_free(BlockCopyState *s);
void block_copy_reset(BlockCopyState *s, int64_t offset, int64_t bytes);
int64_t block_copy_reset_unallocated(BlockCopyState *s,
int64_t offset, int64_t *count);