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[Qemu-devel] [PATCH RFC 15/16] mirror: Lazily request aio context change
From: |
Fam Zheng |
Subject: |
[Qemu-devel] [PATCH RFC 15/16] mirror: Lazily request aio context change permission on target |
Date: |
Tue, 21 Mar 2017 11:16:34 +0800 |
What's done in the source's context change notifier is moving the
target's context to follow the new one, so we request this permission
here.
Signed-off-by: Fam Zheng <address@hidden>
---
block/mirror.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/block/mirror.c b/block/mirror.c
index ed26e8c..168cf60 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -983,6 +983,7 @@ static void mirror_attached_aio_context(BlockJob *job,
AioContext *new_context)
{
MirrorBlockJob *s = container_of(job, MirrorBlockJob, common);
+ blk_request_perm(s->target, BLK_PERM_AIO_CONTEXT_CHANGE, &error_abort);
blk_set_aio_context(s->target, new_context);
}
--
2.9.3
- [Qemu-devel] [PATCH RFC 05/16] backup: Request BLK_PERM_AIO_CONTEXT_CHANGE on target, (continued)
- [Qemu-devel] [PATCH RFC 05/16] backup: Request BLK_PERM_AIO_CONTEXT_CHANGE on target, Fam Zheng, 2017/03/20
- [Qemu-devel] [PATCH RFC 06/16] backup: Do initial aio context move of target via BB interface, Fam Zheng, 2017/03/20
- [Qemu-devel] [PATCH RFC 07/16] mirror: Request aio context change permission on target, Fam Zheng, 2017/03/20
- [Qemu-devel] [PATCH RFC 08/16] commit: Allow aio context change on s->base, Fam Zheng, 2017/03/20
- [Qemu-devel] [PATCH RFC 09/16] mirror: Do initial aio context move of target via BB interface, Fam Zheng, 2017/03/20
- [Qemu-devel] [PATCH RFC 10/16] virtio-scsi: Request BLK_PERM_AIO_CONTEXT_CHANGE for dataplane, Fam Zheng, 2017/03/20
- [Qemu-devel] [PATCH RFC 11/16] virtio-blk: Request BLK_PERM_AIO_CONTEXT_CHANGE for dataplane, Fam Zheng, 2017/03/20
- [Qemu-devel] [PATCH RFC 12/16] blk: fix aio context loss on media change, Fam Zheng, 2017/03/20
- [Qemu-devel] [PATCH RFC 13/16] nbd: Allow BLK_PERM_AIO_CONTEXT_CHANGE on BB, Fam Zheng, 2017/03/20
- [Qemu-devel] [PATCH RFC 14/16] block: Add perm assertion on blk_set_aio_context, Fam Zheng, 2017/03/20
- [Qemu-devel] [PATCH RFC 15/16] mirror: Lazily request aio context change permission on target,
Fam Zheng <=
- [Qemu-devel] [PATCH RFC 16/16] Revert "mirror: Request aio context change permission on target", Fam Zheng, 2017/03/20