[Qemu-devel] [PATCH 2/2] nbd: add missed aio_context_acquire in nbd_export_new

[Denis V. Lunev]

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