[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-block] [PATCH v5 11/12] qed: Implement .bdrv_drain
From: |
Fam Zheng |
Subject: |
[Qemu-block] [PATCH v5 11/12] qed: Implement .bdrv_drain |
Date: |
Wed, 21 Oct 2015 10:06:48 +0800 |
The "need_check_timer" is used to clear the "NEED_CHECK" flag in the
image header after a grace period once metadata update has finished. In
compliance to the bdrv_drain semantics we should make sure it remains
deleted once .bdrv_drain is called.
Call the qed_need_check_timer_cb manually to update the header
immediately.
Signed-off-by: Fam Zheng <address@hidden>
---
block/qed.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/block/qed.c b/block/qed.c
index 5ea05d4..e9dcb4d 100644
--- a/block/qed.c
+++ b/block/qed.c
@@ -375,6 +375,12 @@ static void bdrv_qed_attach_aio_context(BlockDriverState
*bs,
}
}
+static void bdrv_qed_drain(BlockDriverState *bs)
+{
+ qed_cancel_need_check_timer(bs->opaque);
+ qed_need_check_timer_cb(bs->opaque);
+}
+
static int bdrv_qed_open(BlockDriverState *bs, QDict *options, int flags,
Error **errp)
{
@@ -1676,6 +1682,7 @@ static BlockDriver bdrv_qed = {
.bdrv_check = bdrv_qed_check,
.bdrv_detach_aio_context = bdrv_qed_detach_aio_context,
.bdrv_attach_aio_context = bdrv_qed_attach_aio_context,
+ .bdrv_drain = bdrv_qed_drain,
};
static void bdrv_qed_init(void)
--
2.4.3
- Re: [Qemu-block] [PATCH v5 05/12] block: Introduce "drained begin/end" API, (continued)
- [Qemu-block] [PATCH v5 06/12] block: Add "drained begin/end" for transactional external snapshot, Fam Zheng, 2015/10/20
- [Qemu-block] [PATCH v5 07/12] block: Add "drained begin/end" for transactional backup, Fam Zheng, 2015/10/20
- [Qemu-block] [PATCH v5 08/12] block: Add "drained begin/end" for transactional blockdev-backup, Fam Zheng, 2015/10/20
- [Qemu-block] [PATCH v5 09/12] block: Add "drained begin/end" for internal snapshot, Fam Zheng, 2015/10/20
- [Qemu-block] [PATCH v5 10/12] block: Introduce BlockDriver.bdrv_drain callback, Fam Zheng, 2015/10/20
- [Qemu-block] [PATCH v5 11/12] qed: Implement .bdrv_drain,
Fam Zheng <=
- [Qemu-block] [PATCH v5 12/12] tests: Add test case for aio_disable_external, Fam Zheng, 2015/10/20
- Re: [Qemu-block] [PATCH v5 00/12] block: Protect nested event loop with bdrv_drained_begin and bdrv_drained_end, Kevin Wolf, 2015/10/21