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[Qemu-devel] [PATCH 2/2] nbd: add missed aio_context_acquire in nbd_expo
From: |
Denis V. Lunev |
Subject: |
[Qemu-devel] [PATCH 2/2] nbd: add missed aio_context_acquire in nbd_export_new |
Date: |
Wed, 20 Jan 2016 10:12:20 +0300 |
blk_invalidate_cache() can call qcow2_invalidate_cache which performs
IO inside.
Signed-off-by: Denis V. Lunev <address@hidden>
CC: Kevin Wolf <address@hidden>
CC: Paolo Bonzini <address@hidden>
---
nbd.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/nbd.c b/nbd.c
index b3d9654..b271db5 100644
--- a/nbd.c
+++ b/nbd.c
@@ -1080,7 +1080,9 @@ NBDExport *nbd_export_new(BlockBackend *blk, off_t
dev_offset, off_t size,
* that BDRV_O_INCOMING is cleared and the image is ready for write
* access since the export could be available before migration handover.
*/
+ aio_context_acquire(exp->ctx);
blk_invalidate_cache(blk, NULL);
+ aio_context_release(exp->ctx);
return exp;
fail:
--
2.5.0