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[Qemu-block] [PATCH 1/5] block/dirty-bitmap: add lock to bdrv_enable/dis
From: |
John Snow |
Subject: |
[Qemu-block] [PATCH 1/5] block/dirty-bitmap: add lock to bdrv_enable/disable_dirty_bitmap |
Date: |
Tue, 5 Jun 2018 14:59:01 -0400 |
From: Vladimir Sementsov-Ogievskiy <address@hidden>
Add locks and remove comments about BQL accordingly to
dirty_bitmap_mutex definition in block_int.h.
Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
Signed-off-by: John Snow <address@hidden>
---
block/dirty-bitmap.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/block/dirty-bitmap.c b/block/dirty-bitmap.c
index 967159479d..56234257f4 100644
--- a/block/dirty-bitmap.c
+++ b/block/dirty-bitmap.c
@@ -442,18 +442,20 @@ void bdrv_remove_persistent_dirty_bitmap(BlockDriverState
*bs,
}
}
-/* Called with BQL taken. */
void bdrv_disable_dirty_bitmap(BdrvDirtyBitmap *bitmap)
{
+ bdrv_dirty_bitmap_lock(bitmap);
assert(!bdrv_dirty_bitmap_frozen(bitmap));
bitmap->disabled = true;
+ bdrv_dirty_bitmap_unlock(bitmap);
}
-/* Called with BQL taken. */
void bdrv_enable_dirty_bitmap(BdrvDirtyBitmap *bitmap)
{
+ bdrv_dirty_bitmap_lock(bitmap);
assert(!bdrv_dirty_bitmap_frozen(bitmap));
bitmap->disabled = false;
+ bdrv_dirty_bitmap_unlock(bitmap);
}
BlockDirtyInfoList *bdrv_query_dirty_bitmaps(BlockDriverState *bs)
--
2.14.3