diff --git a/block.c b/block.c index 5c428e1595..4e52b1c588 100644 --- a/block.c +++ b/block.c @@ -4435,7 +4435,6 @@ static void bdrv_close(BlockDriverState *bs) void bdrv_close_all(void) { assert(job_next(NULL) == NULL); - blk_exp_close_all(); /* Drop references from requests still in flight, such as canceled block * jobs whose AIO context has not been polled yet */ diff --git a/qemu-nbd.c b/qemu-nbd.c index 0d513cb38c..608c63e82a 100644 --- a/qemu-nbd.c +++ b/qemu-nbd.c @@ -503,6 +503,7 @@ static const char *socket_activation_validate_opts(const char *device, static void qemu_nbd_shutdown(void) { job_cancel_sync_all(); + blk_exp_close_all(); bdrv_close_all(); } diff --git a/softmmu/runstate.c b/softmmu/runstate.c index beee050815..a7fcb603f7 100644 --- a/softmmu/runstate.c +++ b/softmmu/runstate.c @@ -25,6 +25,7 @@ #include "qemu/osdep.h" #include "audio/audio.h" #include "block/block.h" +#include "block/export.h" #include "chardev/char.h" #include "crypto/cipher.h" #include "crypto/init.h" @@ -784,6 +785,14 @@ void qemu_cleanup(void) */ migration_shutdown(); + /* + * Close the exports before draining the block layer. The export + * drivers may have coroutines yielding on it, so we need to clean + * them up before the drain, as otherwise they may be get stuck in + * blk_wait_while_drained(). + */ + blk_exp_close_all(); + /* * We must cancel all block jobs while the block layer is drained, * or cancelling will be affected by throttling and thus may block diff --git a/storage-daemon/qemu-storage-daemon.c b/storage-daemon/qemu-storage-daemon.c index e0c87edbdd..d8d172cc60 100644 --- a/storage-daemon/qemu-storage-daemon.c +++ b/storage-daemon/qemu-storage-daemon.c @@ -314,6 +314,7 @@ int main(int argc, char *argv[]) main_loop_wait(false); } + blk_exp_close_all(); bdrv_drain_all_begin(); bdrv_close_all();