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[Qemu-block] [PATCH 01/29] hbitmap: fix dirty iter
From: |
Vladimir Sementsov-Ogievskiy |
Subject: |
[Qemu-block] [PATCH 01/29] hbitmap: fix dirty iter |
Date: |
Mon, 8 Aug 2016 18:04:52 +0300 |
If dirty bitmap was cleared during iterator life, we can went to zero
current in hbitmap_iter_skip_words, starting from saved (and currently
wrong hbi->cur[...]).
Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
Signed-off-by: Denis V. Lunev <address@hidden>
---
util/hbitmap.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/util/hbitmap.c b/util/hbitmap.c
index 6a13c12..f807f64 100644
--- a/util/hbitmap.c
+++ b/util/hbitmap.c
@@ -106,8 +106,9 @@ unsigned long hbitmap_iter_skip_words(HBitmapIter *hbi)
unsigned long cur;
do {
- cur = hbi->cur[--i];
+ i--;
pos >>= BITS_PER_LEVEL;
+ cur = hbi->cur[i] & hb->levels[i][pos];
} while (cur == 0);
/* Check for end of iteration. We always use fewer than BITS_PER_LONG
--
1.8.3.1
- [Qemu-block] [PATCH v6 00/29] qcow2: persistent dirty bitmaps, Vladimir Sementsov-Ogievskiy, 2016/08/08
- [Qemu-block] [PATCH 28/29] qcow2-bitmap: do not try reloading bitmaps, Vladimir Sementsov-Ogievskiy, 2016/08/08
- [Qemu-block] [PATCH 07/29] qcow2-bitmap: add qcow2_bitmap_load(), Vladimir Sementsov-Ogievskiy, 2016/08/08
- [Qemu-block] [PATCH 26/29] iotests: test qcow2 persistent dirty bitmap, Vladimir Sementsov-Ogievskiy, 2016/08/08
- [Qemu-block] [PATCH 21/29] qcow2-bitmap: add EXTRA_DATA_COMPATIBLE flag, Vladimir Sementsov-Ogievskiy, 2016/08/08
- [Qemu-block] [PATCH 13/29] qcow2: add dirty bitmaps extension, Vladimir Sementsov-Ogievskiy, 2016/08/08
- [Qemu-block] [PATCH 27/29] qcow2-bitmap: delete in_use bitmaps on image load, Vladimir Sementsov-Ogievskiy, 2016/08/08
- [Qemu-block] [PATCH 22/29] qmp: add persistent flag to block-dirty-bitmap-add, Vladimir Sementsov-Ogievskiy, 2016/08/08
- [Qemu-block] [PATCH 24/29] qcow2-bitmap: maintian BlockDirtyBitmap.autoload, Vladimir Sementsov-Ogievskiy, 2016/08/08
- [Qemu-block] [PATCH 01/29] hbitmap: fix dirty iter,
Vladimir Sementsov-Ogievskiy <=
- [Qemu-block] [PATCH 14/29] qcow2-bitmap: add qcow2_bitmap_load_check(), Vladimir Sementsov-Ogievskiy, 2016/08/08
- [Qemu-block] [PATCH 15/29] block/dirty-bitmap: introduce persistent bitmaps, Vladimir Sementsov-Ogievskiy, 2016/08/08
- [Qemu-block] [PATCH 11/29] qcow2-bitmap: check constraints, Vladimir Sementsov-Ogievskiy, 2016/08/08
- [Qemu-block] [PATCH 12/29] qcow2: add qcow2_delete_bitmaps, Vladimir Sementsov-Ogievskiy, 2016/08/08
- [Qemu-block] [PATCH 06/29] qcow2-bitmap: add qcow2_read_bitmaps(), Vladimir Sementsov-Ogievskiy, 2016/08/08