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[Qemu-devel] [PATCH 09/17] block: add bdrv_load_dirty_bitmap()
From: |
Vladimir Sementsov-Ogievskiy |
Subject: |
[Qemu-devel] [PATCH 09/17] block: add bdrv_load_dirty_bitmap() |
Date: |
Wed, 17 Feb 2016 18:29:01 +0300 |
The funcion loads dirty bitmap from file, using underlying driver
function.
Note: the function doesn't change BdrvDirtyBitmap.file field. This field
is only used by bdrv_store_dirty_bitmap() function and is ONLY written
by bdrv_dirty_bitmap_set_file() function.
Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
---
block/dirty-bitmap.c | 16 ++++++++++++++++
include/block/dirty-bitmap.h | 2 ++
2 files changed, 18 insertions(+)
diff --git a/block/dirty-bitmap.c b/block/dirty-bitmap.c
index 0876c38..67f925e 100644
--- a/block/dirty-bitmap.c
+++ b/block/dirty-bitmap.c
@@ -564,3 +564,19 @@ void
bdrv_finalize_persistent_dirty_bitmaps(BlockDriverState *bs)
}
}
}
+
+BdrvDirtyBitmap *bdrv_load_dirty_bitmap(BlockDriverState *bs, const char *name,
+ Error **errp)
+{
+ BlockDriver *drv = bs->drv;
+ if (!drv) {
+ return NULL;
+ }
+ if (drv->bdrv_dirty_bitmap_load) {
+ return drv->bdrv_dirty_bitmap_load(bs, name, errp);
+ }
+ if (bs->file) {
+ return bdrv_load_dirty_bitmap(bs, name, errp);
+ }
+ return NULL;
+}
diff --git a/include/block/dirty-bitmap.h b/include/block/dirty-bitmap.h
index a4f13f1..073013d 100644
--- a/include/block/dirty-bitmap.h
+++ b/include/block/dirty-bitmap.h
@@ -84,5 +84,7 @@ void
bdrv_dirty_bitmap_set_internal_persistance(BdrvDirtyBitmap *bitmap,
void bdrv_store_dirty_bitmap(BlockDriverState *bs, BdrvDirtyBitmap *bitmap,
Error **errp);
void bdrv_finalize_persistent_dirty_bitmaps(BlockDriverState *bs);
+BdrvDirtyBitmap *bdrv_load_dirty_bitmap(BlockDriverState *bs, const char *name,
+ Error **errp);
#endif
--
1.8.3.1
- [Qemu-devel] [PATCH v4 RFC 00/17] qcow2: persistent dirty bitmaps, Vladimir Sementsov-Ogievskiy, 2016/02/17
- [Qemu-devel] [PATCH 02/17] qcow2: Bitmaps extension: structs and consts, Vladimir Sementsov-Ogievskiy, 2016/02/17
- [Qemu-devel] [PATCH 01/17] hbitmap: load/store, Vladimir Sementsov-Ogievskiy, 2016/02/17
- [Qemu-devel] [PATCH 04/17] qcow2-dirty-bitmap: add qcow2_bitmap_load(), Vladimir Sementsov-Ogievskiy, 2016/02/17
- [Qemu-devel] [PATCH 06/17] qcow2: add dirty bitmaps extension, Vladimir Sementsov-Ogievskiy, 2016/02/17
- [Qemu-devel] [PATCH 07/17] qcow2-dirty-bitmap: add qcow2_bitmap_load_check(), Vladimir Sementsov-Ogievskiy, 2016/02/17
- [Qemu-devel] [PATCH 03/17] qcow2-dirty-bitmap: read dirty bitmap directory, Vladimir Sementsov-Ogievskiy, 2016/02/17
- [Qemu-devel] [PATCH 05/17] qcow2-dirty-bitmap: add qcow2_bitmap_store(), Vladimir Sementsov-Ogievskiy, 2016/02/17
- [Qemu-devel] [PATCH 08/17] block: store persistent dirty bitmaps, Vladimir Sementsov-Ogievskiy, 2016/02/17
- [Qemu-devel] [PATCH 10/17] qcow2-dirty-bitmap: add autoclear bit, Vladimir Sementsov-Ogievskiy, 2016/02/17
- [Qemu-devel] [PATCH 09/17] block: add bdrv_load_dirty_bitmap(),
Vladimir Sementsov-Ogievskiy <=
- [Qemu-devel] [PATCH 11/17] qemu: command line option for dirty bitmaps, Vladimir Sementsov-Ogievskiy, 2016/02/17
- [Qemu-devel] [PATCH 12/17] qcow2-dirty-bitmap: add IN_USE flag, Vladimir Sementsov-Ogievskiy, 2016/02/17
- [Qemu-devel] [PATCH 13/17] qcow2-dirty-bitmaps: disallow stroing bitmap to other bs, Vladimir Sementsov-Ogievskiy, 2016/02/17
- [Qemu-devel] [PATCH 16/17] qcow2-dirty-bitmap: add AUTO flag, Vladimir Sementsov-Ogievskiy, 2016/02/17
- [Qemu-devel] [PATCH 14/17] iotests: add VM.test_launcn(), Vladimir Sementsov-Ogievskiy, 2016/02/17
- [Qemu-devel] [PATCH 17/17] qcow2-dirty-bitmap: add EXTRA_DATA_COMPATIBLE flag, Vladimir Sementsov-Ogievskiy, 2016/02/17
- [Qemu-devel] [PATCH 15/17] iotests: test internal persistent dirty bitmap, Vladimir Sementsov-Ogievskiy, 2016/02/17
- Re: [Qemu-devel] [PATCH v4 RFC 00/17] qcow2: persistent dirty bitmaps, John Snow, 2016/02/26