From: Vladimir Sementsov-Ogievskiy <vsement...@virtuozzo.com>
Drop meta bitmaps, as they are unused.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsement...@virtuozzo.com>
Reviewed-by: John Snow <js...@redhat.com>
Message-id: 20190916141911.5255-2-vsement...@virtuozzo.com
Signed-off-by: John Snow <js...@redhat.com>
---
include/block/dirty-bitmap.h | 5 ----
block/dirty-bitmap.c | 46 ------------------------------------
2 files changed, 51 deletions(-)
diff --git a/include/block/dirty-bitmap.h b/include/block/dirty-bitmap.h
index 07503b03b53..973056778aa 100644
--- a/include/block/dirty-bitmap.h
+++ b/include/block/dirty-bitmap.h
@@ -18,9 +18,6 @@ BdrvDirtyBitmap *bdrv_create_dirty_bitmap(BlockDriverState
*bs,
uint32_t granularity,
const char *name,
Error **errp);
-void bdrv_create_meta_dirty_bitmap(BdrvDirtyBitmap *bitmap,
- int chunk_size);
-void bdrv_release_meta_dirty_bitmap(BdrvDirtyBitmap *bitmap);
int bdrv_dirty_bitmap_create_successor(BlockDriverState *bs,
BdrvDirtyBitmap *bitmap,
Error **errp);
@@ -54,7 +51,6 @@ void bdrv_set_dirty_bitmap(BdrvDirtyBitmap *bitmap,
int64_t offset, int64_t bytes);
void bdrv_reset_dirty_bitmap(BdrvDirtyBitmap *bitmap,
int64_t offset, int64_t bytes);
-BdrvDirtyBitmapIter *bdrv_dirty_meta_iter_new(BdrvDirtyBitmap *bitmap);
BdrvDirtyBitmapIter *bdrv_dirty_iter_new(BdrvDirtyBitmap *bitmap);
void bdrv_dirty_iter_free(BdrvDirtyBitmapIter *iter);
@@ -96,7 +92,6 @@ void bdrv_reset_dirty_bitmap_locked(BdrvDirtyBitmap *bitmap,
int64_t bdrv_dirty_iter_next(BdrvDirtyBitmapIter *iter);
void bdrv_set_dirty_iter(BdrvDirtyBitmapIter *hbi, int64_t offset);
int64_t bdrv_get_dirty_count(BdrvDirtyBitmap *bitmap);
-int64_t bdrv_get_meta_dirty_count(BdrvDirtyBitmap *bitmap);
void bdrv_dirty_bitmap_truncate(BlockDriverState *bs, int64_t bytes);
bool bdrv_dirty_bitmap_readonly(const BdrvDirtyBitmap *bitmap);
bool bdrv_has_readonly_bitmaps(BlockDriverState *bs);
diff --git a/block/dirty-bitmap.c b/block/dirty-bitmap.c
index 03e0872b972..4ecf18d5df7 100644
--- a/block/dirty-bitmap.c
+++ b/block/dirty-bitmap.c
@@ -31,7 +31,6 @@
struct BdrvDirtyBitmap {
QemuMutex *mutex;
HBitmap *bitmap; /* Dirty bitmap implementation */
- HBitmap *meta; /* Meta dirty bitmap */
bool busy; /* Bitmap is busy, it can't be used via QMP */
BdrvDirtyBitmap *successor; /* Anonymous child, if any. */
char *name; /* Optional non-empty unique ID */
@@ -127,36 +126,6 @@ BdrvDirtyBitmap *bdrv_create_dirty_bitmap(BlockDriverState
*bs,
return bitmap;
}
-/* bdrv_create_meta_dirty_bitmap
- *
- * Create a meta dirty bitmap that tracks the changes of bits in @bitmap. I.e.
- * when a dirty status bit in @bitmap is changed (either from reset to set or
- * the other way around), its respective meta dirty bitmap bit will be marked
- * dirty as well.
- *
- * @bitmap: the block dirty bitmap for which to create a meta dirty bitmap.
- * @chunk_size: how many bytes of bitmap data does each bit in the meta bitmap
- * track.
- */
-void bdrv_create_meta_dirty_bitmap(BdrvDirtyBitmap *bitmap,
- int chunk_size)
-{
- assert(!bitmap->meta);
- qemu_mutex_lock(bitmap->mutex);
- bitmap->meta = hbitmap_create_meta(bitmap->bitmap,
- chunk_size * BITS_PER_BYTE);
- qemu_mutex_unlock(bitmap->mutex);
-}
-
-void bdrv_release_meta_dirty_bitmap(BdrvDirtyBitmap *bitmap)
-{
- assert(bitmap->meta);
- qemu_mutex_lock(bitmap->mutex);
- hbitmap_free_meta(bitmap->bitmap);
- bitmap->meta = NULL;
- qemu_mutex_unlock(bitmap->mutex);
-}
-
int64_t bdrv_dirty_bitmap_size(const BdrvDirtyBitmap *bitmap)
{
return bitmap->size;
@@ -320,7 +289,6 @@ static void
bdrv_release_dirty_bitmap_locked(BdrvDirtyBitmap *bitmap)
assert(!bitmap->active_iterators);
assert(!bdrv_dirty_bitmap_busy(bitmap));
assert(!bdrv_dirty_bitmap_has_successor(bitmap));
- assert(!bitmap->meta);
QLIST_REMOVE(bitmap, list);
hbitmap_free(bitmap->bitmap);
g_free(bitmap->name);
@@ -666,15 +634,6 @@ 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) {
@@ -821,11 +780,6 @@ 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);
-}
-
bool bdrv_dirty_bitmap_readonly(const BdrvDirtyBitmap *bitmap)
{
return bitmap->readonly;
--
2.21.0
--
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