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libvirt/c363f03e-virnetdaemon-intro-virNetDaemonQuitExecRestart.patch
James Fehlig 432dd3a40e Accepting request 878655 from home:jfehlig:branches:Virtualization
- virtlockd, virtlogd: Fix exec-restart
  6b8e9613-avoid-use-after-free.patch,
  eab7ae6b-fix-array-access.patch,
  c363f03e-virnetdaemon-intro-virNetDaemonQuitExecRestart.patch,
  ccc6dd8f-fix-exec-restart.patch
  bsc#1183411

OBS-URL: https://build.opensuse.org/request/show/878655
OBS-URL: https://build.opensuse.org/package/show/Virtualization/libvirt?expand=0&rev=883
2021-03-12 22:29:08 +00:00

86 lines
2.8 KiB
Diff

commit c363f03e6d0298416179c7f7b24f00da9d85a14f
Author: Peter Krempa <pkrempa@redhat.com>
Date: Wed Mar 10 17:01:23 2021 +0100
virnetdaemon: Introduce virNetDaemonQuitExecRestart
Recent changes which meant to fix daemon shutdown broke the exec-restart
capability of virtlogd and virtlockd, since the code actually closed all
the sockets and shut down all the internals.
Add virNetDaemonQuitExecRestart, which requests a shutdown of the
process, but keeps all the services open and registered since they are
preserved across the restart.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Index: libvirt-7.1.0/src/libvirt_remote.syms
===================================================================
--- libvirt-7.1.0.orig/src/libvirt_remote.syms
+++ libvirt-7.1.0/src/libvirt_remote.syms
@@ -85,6 +85,7 @@ virNetDaemonNew;
virNetDaemonNewPostExecRestart;
virNetDaemonPreExecRestart;
virNetDaemonQuit;
+virNetDaemonQuitExecRestart;
virNetDaemonRemoveShutdownInhibition;
virNetDaemonRun;
virNetDaemonSetShutdownCallbacks;
Index: libvirt-7.1.0/src/rpc/virnetdaemon.c
===================================================================
--- libvirt-7.1.0.orig/src/rpc/virnetdaemon.c
+++ libvirt-7.1.0/src/rpc/virnetdaemon.c
@@ -76,6 +76,7 @@ struct _virNetDaemon {
bool quit;
bool finished;
bool graceful;
+ bool execRestart;
unsigned int autoShutdownTimeout;
size_t autoShutdownInhibitions;
@@ -857,6 +858,10 @@ virNetDaemonRun(virNetDaemonPtr dmn)
virHashForEach(dmn->servers, daemonServerProcessClients, NULL);
+ /* don't shutdown services when performing an exec-restart */
+ if (dmn->quit && dmn->execRestart)
+ goto cleanup;
+
if (dmn->quit && dmn->finishTimer == -1) {
virHashForEach(dmn->servers, daemonServerClose, NULL);
if (dmn->shutdownPrepareCb && dmn->shutdownPrepareCb() < 0)
@@ -912,6 +917,20 @@ virNetDaemonQuit(virNetDaemonPtr dmn)
virObjectUnlock(dmn);
}
+
+void
+virNetDaemonQuitExecRestart(virNetDaemon *dmn)
+{
+ virObjectLock(dmn);
+
+ VIR_DEBUG("Exec-restart requested %p", dmn);
+ dmn->quit = true;
+ dmn->execRestart = true;
+
+ virObjectUnlock(dmn);
+}
+
+
static int
daemonServerClose(void *payload,
const char *key G_GNUC_UNUSED,
Index: libvirt-7.1.0/src/rpc/virnetdaemon.h
===================================================================
--- libvirt-7.1.0.orig/src/rpc/virnetdaemon.h
+++ libvirt-7.1.0/src/rpc/virnetdaemon.h
@@ -75,6 +75,7 @@ void virNetDaemonSetStateStopWorkerThrea
void virNetDaemonRun(virNetDaemonPtr dmn);
void virNetDaemonQuit(virNetDaemonPtr dmn);
+void virNetDaemonQuitExecRestart(virNetDaemon *dmn);
bool virNetDaemonHasClients(virNetDaemonPtr dmn);