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[Qemu-devel] [PATCH] block: Cleanup BMDS in bdrv_close_all
From: |
Fam Zheng |
Subject: |
[Qemu-devel] [PATCH] block: Cleanup BMDS in bdrv_close_all |
Date: |
Wed, 30 Aug 2017 18:06:05 +0800 |
This fixes the assertion due to op blockers added by BMDS:
block.c:3248: bdrv_delete: Assertion `bdrv_op_blocker_is_empty(bs)' failed.
Reproducer: simply start block migration and quit QEMU before it ends.
Cc: address@hidden
Signed-off-by: Fam Zheng <address@hidden>
---
block.c | 2 ++
migration/block.c | 2 +-
migration/block.h | 1 +
stubs/Makefile.objs | 1 +
stubs/block-migration.c | 6 ++++++
5 files changed, 11 insertions(+), 1 deletion(-)
create mode 100644 stubs/block-migration.c
diff --git a/block.c b/block.c
index 3308814bba..508a57274d 100644
--- a/block.c
+++ b/block.c
@@ -43,6 +43,7 @@
#include "qemu/cutils.h"
#include "qemu/id.h"
#include "qapi/util.h"
+#include "migration/block.h"
#ifdef CONFIG_BSD
#include <sys/ioctl.h>
@@ -3111,6 +3112,7 @@ static void bdrv_close(BlockDriverState *bs)
void bdrv_close_all(void)
{
+ block_migration_cleanup_bmds();
block_job_cancel_sync_all();
nbd_export_close_all();
diff --git a/migration/block.c b/migration/block.c
index 9171f60028..c059e48484 100644
--- a/migration/block.c
+++ b/migration/block.c
@@ -673,7 +673,7 @@ static int64_t get_remaining_dirty(void)
/* Called with iothread lock taken. */
-static void block_migration_cleanup_bmds(void)
+void block_migration_cleanup_bmds(void)
{
BlkMigDevState *bmds;
AioContext *ctx;
diff --git a/migration/block.h b/migration/block.h
index 22ebe94259..8bae1cf55a 100644
--- a/migration/block.h
+++ b/migration/block.h
@@ -42,4 +42,5 @@ static inline uint64_t blk_mig_bytes_total(void)
#endif /* CONFIG_LIVE_BLOCK_MIGRATION */
void migrate_set_block_enabled(bool value, Error **errp);
+void block_migration_cleanup_bmds(void);
#endif /* MIGRATION_BLOCK_H */
diff --git a/stubs/Makefile.objs b/stubs/Makefile.objs
index e69c217aff..7540913767 100644
--- a/stubs/Makefile.objs
+++ b/stubs/Makefile.objs
@@ -19,6 +19,7 @@ stub-obj-y += is-daemonized.o
stub-obj-$(CONFIG_LINUX_AIO) += linux-aio.o
stub-obj-y += machine-init-done.o
stub-obj-y += migr-blocker.o
+stub-obj-y += block-migration.o
stub-obj-y += change-state-handler.o
stub-obj-y += monitor.o
stub-obj-y += notify-event.o
diff --git a/stubs/block-migration.c b/stubs/block-migration.c
new file mode 100644
index 0000000000..855f15c757
--- /dev/null
+++ b/stubs/block-migration.c
@@ -0,0 +1,6 @@
+#include "qemu/osdep.h"
+#include "migration/block.h"
+
+void block_migration_cleanup_bmds(void)
+{
+}
--
2.13.5
- [Qemu-devel] [PATCH] block: Cleanup BMDS in bdrv_close_all,
Fam Zheng <=