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From 543610e2a818c44591670da35107ae8d17406382 Mon Sep 17 00:00:00 2001
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From: Kevin Wolf <kwolf@redhat.com>
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Date: Tue, 5 Nov 2013 14:08:59 +0100
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Subject: [PATCH 46/87] blockdev: Introduce DriveInfo.enable_auto_del
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RH-Author: Kevin Wolf <kwolf@redhat.com>
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Message-id: <1383660558-32096-6-git-send-email-kwolf@redhat.com>
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Patchwork-id: 55384
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O-Subject: [RHEL-7.0 qemu-kvm PATCH 05/24] blockdev: Introduce DriveInfo.enable_auto_del
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Bugzilla: 978402
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RH-Acked-by: Fam Zheng <famz@redhat.com>
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RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
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RH-Acked-by: Max Reitz <mreitz@redhat.com>
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BlockDriverStates shouldn't be affected by an unplugged guest device,
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except if created with the legacy -drive command line option or the
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drive_add HMP command.
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Make the automatic deletion as well as cancelling of jobs conditional on
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an enable_auto_del boolean that is only set in drive_init().
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Reviewed-by: Eric Blake <eblake@redhat.com>
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Reviewed-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
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(cherry picked from commit 2d246f01d374c1a10c48c45aa931aa18f0a56634)
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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---
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blockdev.c | 17 ++++++++++++++++-
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include/sysemu/blockdev.h | 1 +
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2 files changed, 17 insertions(+), 1 deletion(-)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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blockdev.c | 17 ++++++++++++++++-
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include/sysemu/blockdev.h | 1 +
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2 files changed, 17 insertions(+), 1 deletions(-)
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diff --git a/blockdev.c b/blockdev.c
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index 2fb6d83..e379a91 100644
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--- a/blockdev.c
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+++ b/blockdev.c
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@@ -89,6 +89,10 @@ void blockdev_mark_auto_del(BlockDriverState *bs)
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{
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DriveInfo *dinfo = drive_get_by_blockdev(bs);
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+ if (dinfo && !dinfo->enable_auto_del) {
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+ return;
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+ }
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+
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if (bs->job) {
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block_job_cancel(bs->job);
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}
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@@ -747,6 +751,7 @@ static void qemu_opt_rename(QemuOpts *opts, const char *from, const char *to)
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DriveInfo *drive_init(QemuOpts *all_opts, BlockInterfaceType block_default_type)
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{
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const char *value;
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+ DriveInfo *dinfo;
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/* Change legacy command line options into QMP ones */
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qemu_opt_rename(all_opts, "iops", "throttling.iops-total");
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@@ -784,7 +789,17 @@ DriveInfo *drive_init(QemuOpts *all_opts, BlockInterfaceType block_default_type)
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qemu_opt_unset(all_opts, "cache");
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}
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- return blockdev_init(all_opts, block_default_type);
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+ /* Actual block device init: Functionality shared with blockdev-add */
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+ dinfo = blockdev_init(all_opts, block_default_type);
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+ if (dinfo == NULL) {
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+ goto fail;
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+ }
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+
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+ /* Set legacy DriveInfo fields */
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+ dinfo->enable_auto_del = true;
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+
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+fail:
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+ return dinfo;
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}
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void do_commit(Monitor *mon, const QDict *qdict)
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diff --git a/include/sysemu/blockdev.h b/include/sysemu/blockdev.h
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index 804ec88..1082091 100644
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--- a/include/sysemu/blockdev.h
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+++ b/include/sysemu/blockdev.h
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@@ -37,6 +37,7 @@ struct DriveInfo {
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int bus;
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int unit;
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int auto_del; /* see blockdev_mark_auto_del() */
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+ bool enable_auto_del; /* Only for legacy drive_init() */
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int media_cd;
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int cyls, heads, secs, trans;
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QemuOpts *opts;
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--
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1.7.1
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