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From: Fam Zheng <famz@redhat.com>
To: qemu-devel@nongnu.org
Cc: kwolf@redhat.com, stefanha@redhat.com
Subject: [Qemu-devel] [PATCH v2 4/9] block: Introduce bdrv_dirty_bitmap_granularity()
Date: Wed, 12 Mar 2014 14:30:59 +0800	[thread overview]
Message-ID: <1394605864-32237-5-git-send-email-famz@redhat.com> (raw)
In-Reply-To: <1394605864-32237-1-git-send-email-famz@redhat.com>

This returns the granularity (in sectors) of dirty bitmap.

Signed-off-by: Fam Zheng <famz@redhat.com>
---
 block.c               | 6 ++++++
 include/block/block.h | 2 ++
 2 files changed, 8 insertions(+)

diff --git a/block.c b/block.c
index 9de1385..26a43eb 100644
--- a/block.c
+++ b/block.c
@@ -5143,6 +5143,12 @@ int bdrv_get_dirty(BlockDriverState *bs, BdrvDirtyBitmap *bitmap, int64_t sector
     }
 }
 
+int bdrv_dirty_bitmap_granularity(BlockDriverState *bs,
+                                  BdrvDirtyBitmap *bitmap)
+{
+    return 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 aa0c5e4..b87c071 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -446,6 +446,8 @@ BdrvDirtyBitmap *bdrv_find_dirty_bitmap(BlockDriverState *bs,
 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);
+int bdrv_dirty_bitmap_granularity(BlockDriverState *bs,
+                                  BdrvDirtyBitmap *bitmap);
 int bdrv_get_dirty(BlockDriverState *bs, BdrvDirtyBitmap *bitmap, int64_t sector);
 void bdrv_set_dirty(BlockDriverState *bs, int64_t cur_sector, int nr_sectors);
 void bdrv_reset_dirty(BlockDriverState *bs, int64_t cur_sector, int nr_sectors);
-- 
1.9.0

  parent reply	other threads:[~2014-03-12  6:31 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-03-12  6:30 [Qemu-devel] [PATCH v2 0/9] QMP: Introduce incremental drive-backup with in-memory dirty bitmap Fam Zheng
2014-03-12  6:30 ` [Qemu-devel] [PATCH v2 1/9] qapi: Add optional field "name" to block " Fam Zheng
2014-03-13 13:15   ` Benoît Canet
2014-03-14  7:16     ` Fam Zheng
2014-03-12  6:30 ` [Qemu-devel] [PATCH v2 2/9] qmp: Add dirty-bitmap-add and dirty-bitmap-remove Fam Zheng
2014-03-13 13:26   ` Benoît Canet
2014-03-14  7:18     ` Fam Zheng
2014-03-14 12:32       ` Eric Blake
2014-03-12  6:30 ` [Qemu-devel] [PATCH v2 3/9] block: Handle error of bdrv_getlength in bdrv_create_dirty_bitmap Fam Zheng
2014-03-13 13:29   ` Benoît Canet
2014-03-12  6:30 ` Fam Zheng [this message]
2014-03-13 13:30   ` [Qemu-devel] [PATCH v2 4/9] block: Introduce bdrv_dirty_bitmap_granularity() Benoît Canet
2014-03-12  6:31 ` [Qemu-devel] [PATCH v2 5/9] hbitmap: Add hbitmap_copy Fam Zheng
2014-03-13 13:45   ` Benoît Canet
2014-03-13 14:28     ` Paolo Bonzini
2014-03-20 10:22   ` Paolo Bonzini
2014-03-20 10:47     ` Fam Zheng
2014-03-12  6:31 ` [Qemu-devel] [PATCH v2 6/9] block: Add bdrv_copy_dirty_bitmap and bdrv_reset_dirty_bitmap Fam Zheng
2014-03-12  6:31 ` [Qemu-devel] [PATCH v2 7/9] qmp: Add dirty-bitmap-enable and dirty-bitmap-disable Fam Zheng
2014-03-13 13:55   ` Benoît Canet
2014-03-14  7:25     ` Fam Zheng
2014-03-12  6:31 ` [Qemu-devel] [PATCH v2 8/9] qmp: Add support of "dirty-bitmap" sync mode for drive-backup Fam Zheng
2014-03-13 14:32   ` Benoît Canet
2014-03-14  7:27     ` Fam Zheng
2014-03-12  6:31 ` [Qemu-devel] [PATCH v2 9/9] qapi: Add transaction support to dirty-bitmap-{add, disable} Fam Zheng

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