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[Qemu-devel] [PATCH 11/17] block: add bdrv_load_dirty_bitmap()
From: |
Vladimir Sementsov-Ogievskiy |
Subject: |
[Qemu-devel] [PATCH 11/17] block: add bdrv_load_dirty_bitmap() |
Date: |
Sat, 5 Sep 2015 19:43:53 +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.c | 18 ++++++++++++++++++
include/block/block.h | 4 ++++
2 files changed, 22 insertions(+)
diff --git a/block.c b/block.c
index 492abb4..9148977 100644
--- a/block.c
+++ b/block.c
@@ -3374,6 +3374,24 @@ bool bdrv_load_check_dirty_bitmap(BlockDriverState
*file, const char *name)
return false;
}
+BdrvDirtyBitmap *bdrv_load_dirty_bitmap(BlockDriverState *bs_for,
+ BlockDriverState *bs_file,
+ const char *name,
+ Error **errp)
+{
+ BlockDriver *drv = bs_file->drv;
+ if (!drv) {
+ return NULL;
+ }
+ if (drv->bdrv_dirty_bitmap_load) {
+ return drv->bdrv_dirty_bitmap_load(bs_for, bs_file, name, errp);
+ }
+ if (bs_file->file) {
+ return bdrv_load_dirty_bitmap(bs_for, bs_file->file, name, errp);
+ }
+ return NULL;
+}
+
int bdrv_store_dirty_bitmap(BdrvDirtyBitmap *bitmap)
{
BlockDriverState *bs = bitmap->file;
diff --git a/include/block/block.h b/include/block/block.h
index 4b9b898..f587a03 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -534,6 +534,10 @@ HBitmap *bdrv_create_meta_bitmap(BdrvDirtyBitmap *bitmap,
void bdrv_release_meta_bitmap(BdrvDirtyBitmap *bitmap);
bool bdrv_load_check_dirty_bitmap(BlockDriverState *file, const char *name);
+BdrvDirtyBitmap *bdrv_load_dirty_bitmap(BlockDriverState *bs_for,
+ BlockDriverState *bs_file,
+ const char *name,
+ Error **errp);
int bdrv_store_dirty_bitmap(BdrvDirtyBitmap *bitmap);
void bdrv_enable_copy_on_read(BlockDriverState *bs);
--
2.1.4
- [Qemu-devel] [PATCH 01/17] block: fix bdrv_dirty_bitmap_granularity(), (continued)
- [Qemu-devel] [PATCH 01/17] block: fix bdrv_dirty_bitmap_granularity(), Vladimir Sementsov-Ogievskiy, 2015/09/05
- [Qemu-devel] [PATCH 05/17] qcow2-dirty-bitmap: read dirty bitmap directory, Vladimir Sementsov-Ogievskiy, 2015/09/05
- [Qemu-devel] [PATCH 04/17] qcow2: Dirty Bitmaps Ext: structs and consts, Vladimir Sementsov-Ogievskiy, 2015/09/05
- [Qemu-devel] [PATCH 03/17] spec: add qcow2-dirty-bitmaps specification, Vladimir Sementsov-Ogievskiy, 2015/09/05
- [Qemu-devel] [PATCH 06/17] qcow2-dirty-bitmap: add qcow2_dirty_bitmap_load(), Vladimir Sementsov-Ogievskiy, 2015/09/05
- [Qemu-devel] [PATCH 07/17] qcow2-dirty-bitmap: add qcow2_dirty_bitmap_store(), Vladimir Sementsov-Ogievskiy, 2015/09/05
- [Qemu-devel] [PATCH 08/17] qcow2: add dirty bitmaps extension, Vladimir Sementsov-Ogievskiy, 2015/09/05
- [Qemu-devel] [PATCH 09/17] qcow2-dirty-bitmap: add qcow2_dirty_bitmap_load_check(), Vladimir Sementsov-Ogievskiy, 2015/09/05
- [Qemu-devel] [PATCH 10/17] block: store persistent dirty bitmaps, Vladimir Sementsov-Ogievskiy, 2015/09/05
- [Qemu-devel] [PATCH 12/17] qcow2-dirty-bitmap: add autoclear bit, Vladimir Sementsov-Ogievskiy, 2015/09/05
- [Qemu-devel] [PATCH 11/17] block: add bdrv_load_dirty_bitmap(),
Vladimir Sementsov-Ogievskiy <=
- [Qemu-devel] [PATCH 14/17] qcow2-dirty-bitmap: add IN_USE flag, Vladimir Sementsov-Ogievskiy, 2015/09/05
- [Qemu-devel] [PATCH 13/17] qemu: command line option for dirty bitmaps, Vladimir Sementsov-Ogievskiy, 2015/09/05
- [Qemu-devel] [PATCH 16/17] iotests: add VM.test_launcn(), Vladimir Sementsov-Ogievskiy, 2015/09/05
- [Qemu-devel] [PATCH 15/17] qcow2-dirty-bitmaps: handle store reqursion, Vladimir Sementsov-Ogievskiy, 2015/09/05
- [Qemu-devel] [PATCH 17/17] iotests: test internal persistent dirty bitmap, Vladimir Sementsov-Ogievskiy, 2015/09/05
- Re: [Qemu-devel] [PATCH v3 RFC 0/17] block: persistent dirty bitmaps, Vladimir Sementsov-Ogievskiy, 2015/09/05
- Re: [Qemu-devel] [PATCH v3 RFC 0/17] block: persistent dirty bitmaps, Vladimir Sementsov-Ogievskiy, 2015/09/05
- Re: [Qemu-devel] [PATCH v3 RFC 0/17] block: persistent dirty bitmaps, Vladimir Sementsov-Ogievskiy, 2015/09/05
- Re: [Qemu-devel] [PATCH v3 RFC 0/17] block: persistent dirty bitmaps, Vladimir Sementsov-Ogievskiy, 2015/09/05
- Re: [Qemu-devel] [PATCH v3 RFC 0/17] block: persistent dirty bitmaps, Vladimir Sementsov-Ogievskiy, 2015/09/05