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[Qemu-devel] [PATCH 2/2] block: track dirty flag status in qed
From: |
Dong Xu Wang |
Subject: |
[Qemu-devel] [PATCH 2/2] block: track dirty flag status in qed |
Date: |
Sat, 31 Dec 2011 17:06:28 +0800 |
From: Dong Xu Wang <address@hidden>
qed driver use QED_F_NEED_CHECK to mark if the image is clean.
CC: Kevin Wolf <address@hidden>
CC: Stefan Hajnoczi <address@hidden>
Signed-off-by: Dong Xu Wang <address@hidden>
---
block/qed.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/block/qed.c b/block/qed.c
index 8da3ebe..1e909b1 100644
--- a/block/qed.c
+++ b/block/qed.c
@@ -1429,6 +1429,12 @@ static int bdrv_qed_check(BlockDriverState *bs,
BdrvCheckResult *result)
return qed_check(s, result, false);
}
+static int bdrv_qed_is_dirty(BlockDriverState *bs)
+{
+ BDRVQEDState *s = bs->opaque;
+ return s->header.features & QED_F_NEED_CHECK;
+}
+
static QEMUOptionParameter qed_create_options[] = {
{
.name = BLOCK_OPT_SIZE,
@@ -1474,6 +1480,7 @@ static BlockDriver bdrv_qed = {
.bdrv_get_info = bdrv_qed_get_info,
.bdrv_change_backing_file = bdrv_qed_change_backing_file,
.bdrv_check = bdrv_qed_check,
+ .bdrv_is_dirty = bdrv_qed_is_dirty,
};
static void bdrv_qed_init(void)
--
1.7.5.4