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From 7ea7ac78a4d38bc1873df660406b25949515cf07 Mon Sep 17 00:00:00 2001
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From: Kevin Wolf <kwolf@redhat.com>
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Date: Tue, 26 Jun 2018 09:48:24 +0200
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Subject: [PATCH 55/89] block: Cancel job in bdrv_close_all() callers
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RH-Author: Kevin Wolf <kwolf@redhat.com>
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Message-id: <20180626094856.6924-42-kwolf@redhat.com>
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Patchwork-id: 81098
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O-Subject: [RHV-7.6 qemu-kvm-rhev PATCH v2 41/73] block: Cancel job in bdrv_close_all() callers
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Bugzilla: 1513543
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RH-Acked-by: Jeffrey Cody <jcody@redhat.com>
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RH-Acked-by: Max Reitz <mreitz@redhat.com>
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RH-Acked-by: Fam Zheng <famz@redhat.com>
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Now that we cancel all jobs and not only block jobs on shutdown, doing
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that in bdrv_close_all() isn't really appropriate any more. Move the
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job_cancel_sync_all() call to the callers, and only assert that there
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are no job running in bdrv_close_all().
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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(cherry picked from commit b3b5299d58bce4366c647af40374e6b063f371eb)
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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block.c | 4 +---
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qemu-nbd.c | 8 +++++++-
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vl.c | 1 +
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3 files changed, 9 insertions(+), 4 deletions(-)
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diff --git a/block.c b/block.c
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index a83787f..afe30ca 100644
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--- a/block.c
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+++ b/block.c
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@@ -3374,9 +3374,7 @@ static void bdrv_close(BlockDriverState *bs)
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void bdrv_close_all(void)
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{
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- /* TODO We do want to cancel all jobs instead of just block jobs on
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- * shutdown, but bdrv_close_all() isn't the right place any more. */
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- job_cancel_sync_all();
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+ assert(job_next(NULL) == NULL);
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nbd_export_close_all();
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/* Drop references from requests still in flight, such as canceled block
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diff --git a/qemu-nbd.c b/qemu-nbd.c
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index 0af0560..51b9d38 100644
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--- a/qemu-nbd.c
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+++ b/qemu-nbd.c
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@@ -482,6 +482,12 @@ static const char *socket_activation_validate_opts(const char *device,
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return NULL;
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}
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+static void qemu_nbd_shutdown(void)
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+{
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+ job_cancel_sync_all();
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+ bdrv_close_all();
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+}
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+
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int main(int argc, char **argv)
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{
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BlockBackend *blk;
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@@ -928,7 +934,7 @@ int main(int argc, char **argv)
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exit(EXIT_FAILURE);
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}
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bdrv_init();
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- atexit(bdrv_close_all);
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+ atexit(qemu_nbd_shutdown);
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srcpath = argv[optind];
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if (imageOpts) {
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diff --git a/vl.c b/vl.c
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index f3acab3..713f899 100644
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--- a/vl.c
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+++ b/vl.c
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@@ -4772,6 +4772,7 @@ int main(int argc, char **argv, char **envp)
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/* No more vcpu or device emulation activity beyond this point */
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vm_shutdown();
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+ job_cancel_sync_all();
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bdrv_close_all();
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res_free();
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--
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1.8.3.1
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