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[Qemu-block] [PATCH RFC 13/16] nbd: Allow BLK_PERM_AIO_CONTEXT_CHANGE on
From: |
Fam Zheng |
Subject: |
[Qemu-block] [PATCH RFC 13/16] nbd: Allow BLK_PERM_AIO_CONTEXT_CHANGE on BB |
Date: |
Tue, 21 Mar 2017 11:16:32 +0800 |
This is safe because of the aio context notifier we'll register on this
node. So allow it.
Signed-off-by: Fam Zheng <address@hidden>
---
nbd/server.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/nbd/server.c b/nbd/server.c
index 924a1fe..a8f58fb 100644
--- a/nbd/server.c
+++ b/nbd/server.c
@@ -900,8 +900,10 @@ NBDExport *nbd_export_new(BlockDriverState *bs, off_t
dev_offset, off_t size,
if ((nbdflags & NBD_FLAG_READ_ONLY) == 0) {
perm |= BLK_PERM_WRITE;
}
- blk = blk_new(perm, BLK_PERM_CONSISTENT_READ | BLK_PERM_WRITE_UNCHANGED |
- BLK_PERM_WRITE | BLK_PERM_GRAPH_MOD);
+ blk = blk_new(perm,
+ BLK_PERM_CONSISTENT_READ | BLK_PERM_WRITE_UNCHANGED |
+ BLK_PERM_WRITE | BLK_PERM_GRAPH_MOD |
+ BLK_PERM_AIO_CONTEXT_CHANGE);
ret = blk_insert_bs(blk, bs, errp);
if (ret < 0) {
goto fail;
--
2.9.3
- [Qemu-block] [PATCH RFC 03/16] blockjob: Add BLK_PERM_AIO_CONTEXT_CHANGE shared perm on bs, (continued)
- [Qemu-block] [PATCH RFC 03/16] blockjob: Add BLK_PERM_AIO_CONTEXT_CHANGE shared perm on bs, Fam Zheng, 2017/03/20
- [Qemu-block] [PATCH RFC 04/16] block: Propagate BLK_PERM_AIO_CONTEXT_CHANGE down the graph, Fam Zheng, 2017/03/20
- [Qemu-block] [PATCH RFC 05/16] backup: Request BLK_PERM_AIO_CONTEXT_CHANGE on target, Fam Zheng, 2017/03/20
- [Qemu-block] [PATCH RFC 06/16] backup: Do initial aio context move of target via BB interface, Fam Zheng, 2017/03/20
- [Qemu-block] [PATCH RFC 07/16] mirror: Request aio context change permission on target, Fam Zheng, 2017/03/20
- [Qemu-block] [PATCH RFC 08/16] commit: Allow aio context change on s->base, Fam Zheng, 2017/03/20
- [Qemu-block] [PATCH RFC 09/16] mirror: Do initial aio context move of target via BB interface, Fam Zheng, 2017/03/20
- [Qemu-block] [PATCH RFC 10/16] virtio-scsi: Request BLK_PERM_AIO_CONTEXT_CHANGE for dataplane, Fam Zheng, 2017/03/20
- [Qemu-block] [PATCH RFC 11/16] virtio-blk: Request BLK_PERM_AIO_CONTEXT_CHANGE for dataplane, Fam Zheng, 2017/03/20
- [Qemu-block] [PATCH RFC 12/16] blk: fix aio context loss on media change, Fam Zheng, 2017/03/20
- [Qemu-block] [PATCH RFC 13/16] nbd: Allow BLK_PERM_AIO_CONTEXT_CHANGE on BB,
Fam Zheng <=
- [Qemu-block] [PATCH RFC 14/16] block: Add perm assertion on blk_set_aio_context, Fam Zheng, 2017/03/20
- [Qemu-block] [PATCH RFC 15/16] mirror: Lazily request aio context change permission on target, Fam Zheng, 2017/03/20
- [Qemu-block] [PATCH RFC 16/16] Revert "mirror: Request aio context change permission on target", Fam Zheng, 2017/03/20