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| author | Fam Zheng | 2016-10-13 23:58:30 +0200 |
|---|---|---|
| committer | Max Reitz | 2016-10-24 17:56:07 +0200 |
| commit | 6d3f4049ba532b01ff738f9e5a66df1477c5ffdd (patch) | |
| tree | 8ac4e991ffbffd7fd890d7ddc0539e62e0817ed9 /block | |
| parent | tests: Add test code for hbitmap serialization (diff) | |
| download | qemu-6d3f4049ba532b01ff738f9e5a66df1477c5ffdd.tar.gz qemu-6d3f4049ba532b01ff738f9e5a66df1477c5ffdd.tar.xz qemu-6d3f4049ba532b01ff738f9e5a66df1477c5ffdd.zip | |
block: More operations for meta dirty bitmap
Callers can create an iterator of meta bitmap with
bdrv_dirty_meta_iter_new(), then use the bdrv_dirty_iter_* operations on
it. Meta iterators are also counted by bitmap->active_iterators.
Also add a couple of functions to retrieve granularity and count.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1476395910-8697-11-git-send-email-jsnow@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/dirty-bitmap.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/block/dirty-bitmap.c b/block/dirty-bitmap.c index 384146bbf3..519737c8d3 100644 --- a/block/dirty-bitmap.c +++ b/block/dirty-bitmap.c @@ -393,6 +393,11 @@ uint32_t bdrv_dirty_bitmap_granularity(BdrvDirtyBitmap *bitmap) return BDRV_SECTOR_SIZE << hbitmap_granularity(bitmap->bitmap); } +uint32_t bdrv_dirty_bitmap_meta_granularity(BdrvDirtyBitmap *bitmap) +{ + return BDRV_SECTOR_SIZE << hbitmap_granularity(bitmap->meta); +} + BdrvDirtyBitmapIter *bdrv_dirty_iter_new(BdrvDirtyBitmap *bitmap, uint64_t first_sector) { @@ -403,6 +408,15 @@ BdrvDirtyBitmapIter *bdrv_dirty_iter_new(BdrvDirtyBitmap *bitmap, return iter; } +BdrvDirtyBitmapIter *bdrv_dirty_meta_iter_new(BdrvDirtyBitmap *bitmap) +{ + BdrvDirtyBitmapIter *iter = g_new(BdrvDirtyBitmapIter, 1); + hbitmap_iter_init(&iter->hbi, bitmap->meta, 0); + iter->bitmap = bitmap; + bitmap->active_iterators++; + return iter; +} + void bdrv_dirty_iter_free(BdrvDirtyBitmapIter *iter) { if (!iter) { @@ -514,3 +528,8 @@ int64_t bdrv_get_dirty_count(BdrvDirtyBitmap *bitmap) { return hbitmap_count(bitmap->bitmap); } + +int64_t bdrv_get_meta_dirty_count(BdrvDirtyBitmap *bitmap) +{ + return hbitmap_count(bitmap->meta); +} |