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[Qemu-devel] [PATCH v10 04/13] block: Introduce bdrv_dirty_bitmap_granul
From: |
John Snow |
Subject: |
[Qemu-devel] [PATCH v10 04/13] block: Introduce bdrv_dirty_bitmap_granularity() |
Date: |
Mon, 22 Dec 2014 20:12:13 -0500 |
From: Fam Zheng <address@hidden>
This returns the granularity (in bytes) of dirty bitmap,
which matches the QMP interface and the existing query
interface.
Signed-off-by: Fam Zheng <address@hidden>
Signed-off-by: John Snow <address@hidden>
---
block.c | 9 +++++++--
include/block/block.h | 2 ++
2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/block.c b/block.c
index 3eb77ee..a1d9e88 100644
--- a/block.c
+++ b/block.c
@@ -5396,8 +5396,7 @@ BlockDirtyInfoList
*bdrv_query_dirty_bitmaps(BlockDriverState *bs)
BlockDirtyInfo *info = g_new0(BlockDirtyInfo, 1);
BlockDirtyInfoList *entry = g_new0(BlockDirtyInfoList, 1);
info->count = bdrv_get_dirty_count(bs, bm);
- info->granularity =
- ((int64_t) BDRV_SECTOR_SIZE << hbitmap_granularity(bm->bitmap));
+ info->granularity = bdrv_dirty_bitmap_granularity(bs, bm);
info->has_name = !!bm->name;
info->name = g_strdup(bm->name);
entry->value = info;
@@ -5437,6 +5436,12 @@ uint64_t
bdrv_get_default_bitmap_granularity(BlockDriverState *bs)
return granularity;
}
+uint64_t bdrv_dirty_bitmap_granularity(BlockDriverState *bs,
+ BdrvDirtyBitmap *bitmap)
+{
+ return BDRV_SECTOR_SIZE << hbitmap_granularity(bitmap->bitmap);
+}
+
void bdrv_dirty_iter_init(BlockDriverState *bs,
BdrvDirtyBitmap *bitmap, HBitmapIter *hbi)
{
diff --git a/include/block/block.h b/include/block/block.h
index 44dd6ca..c7402e7 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -439,6 +439,8 @@ void bdrv_dirty_bitmap_make_anon(BlockDriverState *bs,
BdrvDirtyBitmap *bitmap);
void bdrv_release_dirty_bitmap(BlockDriverState *bs, BdrvDirtyBitmap *bitmap);
BlockDirtyInfoList *bdrv_query_dirty_bitmaps(BlockDriverState *bs);
uint64_t bdrv_get_default_bitmap_granularity(BlockDriverState *bs);
+uint64_t bdrv_dirty_bitmap_granularity(BlockDriverState *bs,
+ BdrvDirtyBitmap *bitmap);
int bdrv_get_dirty(BlockDriverState *bs, BdrvDirtyBitmap *bitmap, int64_t
sector);
void bdrv_set_dirty_bitmap(BlockDriverState *bs, BdrvDirtyBitmap *bitmap,
int64_t cur_sector, int nr_sectors);
--
1.9.3
- [Qemu-devel] [PATCH v10 00/13] block: Incremental backup series (RFC), John Snow, 2014/12/22
- [Qemu-devel] [PATCH v10 01/13] block: fix spoiling all dirty bitmaps by mirror and migration, John Snow, 2014/12/22
- [Qemu-devel] [PATCH v10 02/13] qapi: Add optional field "name" to block dirty bitmap, John Snow, 2014/12/22
- [Qemu-devel] [PATCH v10 03/13] qmp: Add block-dirty-bitmap-add and block-dirty-bitmap-remove, John Snow, 2014/12/22
- [Qemu-devel] [PATCH v10 04/13] block: Introduce bdrv_dirty_bitmap_granularity(),
John Snow <=
- [Qemu-devel] [PATCH v10 05/13] hbitmap: Add hbitmap_copy, John Snow, 2014/12/22
- [Qemu-devel] [PATCH v10 07/13] hbitmap: add hbitmap_merge, John Snow, 2014/12/22
- [Qemu-devel] [PATCH v10 06/13] block: Add bdrv_copy_dirty_bitmap and bdrv_clear_dirty_bitmap, John Snow, 2014/12/22
- [Qemu-devel] [PATCH v10 10/13] qmp: Add support of "dirty-bitmap" sync mode for drive-backup, John Snow, 2014/12/22
- [Qemu-devel] [PATCH v10 08/13] block: add bdrv_reclaim_dirty_bitmap, John Snow, 2014/12/22
- [Qemu-devel] [PATCH v10 09/13] qmp: Add block-dirty-bitmap-enable and block-dirty-bitmap-disable, John Snow, 2014/12/22
- [Qemu-devel] [PATCH v10 11/13] qapi: Add transaction support to block-dirty-bitmap-{add, enable, disable}, John Snow, 2014/12/22
- [Qemu-devel] [PATCH v10 13/13] qemu-iotests: Add tests for drive-backup sync=dirty-bitmap, John Snow, 2014/12/22
- [Qemu-devel] [PATCH v10 12/13] qmp: Add dirty bitmap 'enabled' field in query-block, John Snow, 2014/12/22