diff mbox series

migration/colo.c: Fix compilation issue when disable replication

Message ID 20181024163529.15665-1-zhangckid@gmail.com (mailing list archive)
State New, archived
Headers show
Series migration/colo.c: Fix compilation issue when disable replication | expand

Commit Message

Zhang Chen Oct. 24, 2018, 4:35 p.m. UTC
This compilation issue will occur when user use --disable-replication
to config Qemu.

Reported-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
---
 migration/colo.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

Comments

Dr. David Alan Gilbert Oct. 30, 2018, 7:54 p.m. UTC | #1
* Zhang Chen (zhangckid@gmail.com) wrote:
> This compilation issue will occur when user use --disable-replication
> to config Qemu.
> 
> Reported-by: Thomas Huth <thuth@redhat.com>
> Signed-off-by: Zhang Chen <zhangckid@gmail.com>

OK; do we need to add a check to migrate_caps_check to stop you enabling
colo in this case?


Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

> ---
>  migration/colo.c | 18 +++++++++++++++++-
>  1 file changed, 17 insertions(+), 1 deletion(-)
> 
> diff --git a/migration/colo.c b/migration/colo.c
> index 956ac236b7..b81e6ec5bb 100644
> --- a/migration/colo.c
> +++ b/migration/colo.c
> @@ -59,6 +59,8 @@ static bool colo_runstate_is_stopped(void)
>  
>  static void secondary_vm_do_failover(void)
>  {
> +/* COLO needs enable block-replication */
> +#ifdef CONFIG_REPLICATION
>      int old_state;
>      MigrationIncomingState *mis = migration_incoming_get_current();
>      Error *local_err = NULL;
> @@ -121,10 +123,14 @@ static void secondary_vm_do_failover(void)
>      if (mis->migration_incoming_co) {
>          qemu_coroutine_enter(mis->migration_incoming_co);
>      }
> +#else
> +    abort();
> +#endif
>  }
>  
>  static void primary_vm_do_failover(void)
>  {
> +#ifdef CONFIG_REPLICATION
>      MigrationState *s = migrate_get_current();
>      int old_state;
>      Error *local_err = NULL;
> @@ -165,6 +171,9 @@ static void primary_vm_do_failover(void)
>  
>      /* Notify COLO thread that failover work is finished */
>      qemu_sem_post(&s->colo_exit_sem);
> +#else
> +    abort();
> +#endif
>  }
>  
>  COLOMode get_colo_mode(void)
> @@ -373,6 +382,7 @@ static int colo_do_checkpoint_transaction(MigrationState *s,
>                                            QIOChannelBuffer *bioc,
>                                            QEMUFile *fb)
>  {
> +#ifdef CONFIG_REPLICATION
>      Error *local_err = NULL;
>      int ret = -1;
>  
> @@ -483,6 +493,9 @@ out:
>          error_report_err(local_err);
>      }
>      return ret;
> +#else
> +    abort();
> +#endif
>  }
>  
>  static void colo_compare_notify_checkpoint(Notifier *notifier, void *data)
> @@ -790,13 +803,16 @@ void *colo_process_incoming_thread(void *opaque)
>              qemu_mutex_unlock_iothread();
>              goto out;
>          }
> +#ifdef CONFIG_REPLICATION
>          /* discard colo disk buffer */
>          replication_do_checkpoint_all(&local_err);
>          if (local_err) {
>              qemu_mutex_unlock_iothread();
>              goto out;
>          }
> -
> +#else
> +        abort();
> +#endif
>          /* Notify all filters of all NIC to do checkpoint */
>          colo_notify_filters_event(COLO_EVENT_CHECKPOINT, &local_err);
>  
> -- 
> 2.17.GIT
> 
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
Dr. David Alan Gilbert Oct. 30, 2018, 7:55 p.m. UTC | #2
* Zhang Chen (zhangckid@gmail.com) wrote:
> This compilation issue will occur when user use --disable-replication
> to config Qemu.
> 
> Reported-by: Thomas Huth <thuth@redhat.com>
> Signed-off-by: Zhang Chen <zhangckid@gmail.com>

Queued.

> ---
>  migration/colo.c | 18 +++++++++++++++++-
>  1 file changed, 17 insertions(+), 1 deletion(-)
> 
> diff --git a/migration/colo.c b/migration/colo.c
> index 956ac236b7..b81e6ec5bb 100644
> --- a/migration/colo.c
> +++ b/migration/colo.c
> @@ -59,6 +59,8 @@ static bool colo_runstate_is_stopped(void)
>  
>  static void secondary_vm_do_failover(void)
>  {
> +/* COLO needs enable block-replication */
> +#ifdef CONFIG_REPLICATION
>      int old_state;
>      MigrationIncomingState *mis = migration_incoming_get_current();
>      Error *local_err = NULL;
> @@ -121,10 +123,14 @@ static void secondary_vm_do_failover(void)
>      if (mis->migration_incoming_co) {
>          qemu_coroutine_enter(mis->migration_incoming_co);
>      }
> +#else
> +    abort();
> +#endif
>  }
>  
>  static void primary_vm_do_failover(void)
>  {
> +#ifdef CONFIG_REPLICATION
>      MigrationState *s = migrate_get_current();
>      int old_state;
>      Error *local_err = NULL;
> @@ -165,6 +171,9 @@ static void primary_vm_do_failover(void)
>  
>      /* Notify COLO thread that failover work is finished */
>      qemu_sem_post(&s->colo_exit_sem);
> +#else
> +    abort();
> +#endif
>  }
>  
>  COLOMode get_colo_mode(void)
> @@ -373,6 +382,7 @@ static int colo_do_checkpoint_transaction(MigrationState *s,
>                                            QIOChannelBuffer *bioc,
>                                            QEMUFile *fb)
>  {
> +#ifdef CONFIG_REPLICATION
>      Error *local_err = NULL;
>      int ret = -1;
>  
> @@ -483,6 +493,9 @@ out:
>          error_report_err(local_err);
>      }
>      return ret;
> +#else
> +    abort();
> +#endif
>  }
>  
>  static void colo_compare_notify_checkpoint(Notifier *notifier, void *data)
> @@ -790,13 +803,16 @@ void *colo_process_incoming_thread(void *opaque)
>              qemu_mutex_unlock_iothread();
>              goto out;
>          }
> +#ifdef CONFIG_REPLICATION
>          /* discard colo disk buffer */
>          replication_do_checkpoint_all(&local_err);
>          if (local_err) {
>              qemu_mutex_unlock_iothread();
>              goto out;
>          }
> -
> +#else
> +        abort();
> +#endif
>          /* Notify all filters of all NIC to do checkpoint */
>          colo_notify_filters_event(COLO_EVENT_CHECKPOINT, &local_err);
>  
> -- 
> 2.17.GIT
> 
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
Dr. David Alan Gilbert Oct. 31, 2018, 4:47 p.m. UTC | #3
* Dr. David Alan Gilbert (dgilbert@redhat.com) wrote:
> * Zhang Chen (zhangckid@gmail.com) wrote:
> > This compilation issue will occur when user use --disable-replication
> > to config Qemu.
> > 
> > Reported-by: Thomas Huth <thuth@redhat.com>
> > Signed-off-by: Zhang Chen <zhangckid@gmail.com>
> 
> Queued.

Unqueued; this still isn't building for me with replication disabled;
I'm hitting one problem where the compiler is complaining that
colo_send_message_value is unused, and then I'm hitting a bunch of link
time errors.

This needs a few more fixes first.

Dave

> > ---
> >  migration/colo.c | 18 +++++++++++++++++-
> >  1 file changed, 17 insertions(+), 1 deletion(-)
> > 
> > diff --git a/migration/colo.c b/migration/colo.c
> > index 956ac236b7..b81e6ec5bb 100644
> > --- a/migration/colo.c
> > +++ b/migration/colo.c
> > @@ -59,6 +59,8 @@ static bool colo_runstate_is_stopped(void)
> >  
> >  static void secondary_vm_do_failover(void)
> >  {
> > +/* COLO needs enable block-replication */
> > +#ifdef CONFIG_REPLICATION
> >      int old_state;
> >      MigrationIncomingState *mis = migration_incoming_get_current();
> >      Error *local_err = NULL;
> > @@ -121,10 +123,14 @@ static void secondary_vm_do_failover(void)
> >      if (mis->migration_incoming_co) {
> >          qemu_coroutine_enter(mis->migration_incoming_co);
> >      }
> > +#else
> > +    abort();
> > +#endif
> >  }
> >  
> >  static void primary_vm_do_failover(void)
> >  {
> > +#ifdef CONFIG_REPLICATION
> >      MigrationState *s = migrate_get_current();
> >      int old_state;
> >      Error *local_err = NULL;
> > @@ -165,6 +171,9 @@ static void primary_vm_do_failover(void)
> >  
> >      /* Notify COLO thread that failover work is finished */
> >      qemu_sem_post(&s->colo_exit_sem);
> > +#else
> > +    abort();
> > +#endif
> >  }
> >  
> >  COLOMode get_colo_mode(void)
> > @@ -373,6 +382,7 @@ static int colo_do_checkpoint_transaction(MigrationState *s,
> >                                            QIOChannelBuffer *bioc,
> >                                            QEMUFile *fb)
> >  {
> > +#ifdef CONFIG_REPLICATION
> >      Error *local_err = NULL;
> >      int ret = -1;
> >  
> > @@ -483,6 +493,9 @@ out:
> >          error_report_err(local_err);
> >      }
> >      return ret;
> > +#else
> > +    abort();
> > +#endif
> >  }
> >  
> >  static void colo_compare_notify_checkpoint(Notifier *notifier, void *data)
> > @@ -790,13 +803,16 @@ void *colo_process_incoming_thread(void *opaque)
> >              qemu_mutex_unlock_iothread();
> >              goto out;
> >          }
> > +#ifdef CONFIG_REPLICATION
> >          /* discard colo disk buffer */
> >          replication_do_checkpoint_all(&local_err);
> >          if (local_err) {
> >              qemu_mutex_unlock_iothread();
> >              goto out;
> >          }
> > -
> > +#else
> > +        abort();
> > +#endif
> >          /* Notify all filters of all NIC to do checkpoint */
> >          colo_notify_filters_event(COLO_EVENT_CHECKPOINT, &local_err);
> >  
> > -- 
> > 2.17.GIT
> > 
> --
> Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
Zhang Chen Nov. 1, 2018, 1:47 a.m. UTC | #4
On Thu, Nov 1, 2018 at 12:47 AM Dr. David Alan Gilbert <dgilbert@redhat.com>
wrote:

> * Dr. David Alan Gilbert (dgilbert@redhat.com) wrote:
> > * Zhang Chen (zhangckid@gmail.com) wrote:
> > > This compilation issue will occur when user use --disable-replication
> > > to config Qemu.
> > >
> > > Reported-by: Thomas Huth <thuth@redhat.com>
> > > Signed-off-by: Zhang Chen <zhangckid@gmail.com>
> >
> > Queued.
>
> Unqueued; this still isn't building for me with replication disabled;
> I'm hitting one problem where the compiler is complaining that
> colo_send_message_value is unused, and then I'm hitting a bunch of link
> time errors.
>
> This needs a few more fixes first.
>

Sorry, my test machine's gcc version(5.4.0) is too old to catch this error.
I will fix it and send the V2 patch.

Thanks
Zhang Chen


>
> Dave
>
> > > ---
> > >  migration/colo.c | 18 +++++++++++++++++-
> > >  1 file changed, 17 insertions(+), 1 deletion(-)
> > >
> > > diff --git a/migration/colo.c b/migration/colo.c
> > > index 956ac236b7..b81e6ec5bb 100644
> > > --- a/migration/colo.c
> > > +++ b/migration/colo.c
> > > @@ -59,6 +59,8 @@ static bool colo_runstate_is_stopped(void)
> > >
> > >  static void secondary_vm_do_failover(void)
> > >  {
> > > +/* COLO needs enable block-replication */
> > > +#ifdef CONFIG_REPLICATION
> > >      int old_state;
> > >      MigrationIncomingState *mis = migration_incoming_get_current();
> > >      Error *local_err = NULL;
> > > @@ -121,10 +123,14 @@ static void secondary_vm_do_failover(void)
> > >      if (mis->migration_incoming_co) {
> > >          qemu_coroutine_enter(mis->migration_incoming_co);
> > >      }
> > > +#else
> > > +    abort();
> > > +#endif
> > >  }
> > >
> > >  static void primary_vm_do_failover(void)
> > >  {
> > > +#ifdef CONFIG_REPLICATION
> > >      MigrationState *s = migrate_get_current();
> > >      int old_state;
> > >      Error *local_err = NULL;
> > > @@ -165,6 +171,9 @@ static void primary_vm_do_failover(void)
> > >
> > >      /* Notify COLO thread that failover work is finished */
> > >      qemu_sem_post(&s->colo_exit_sem);
> > > +#else
> > > +    abort();
> > > +#endif
> > >  }
> > >
> > >  COLOMode get_colo_mode(void)
> > > @@ -373,6 +382,7 @@ static int
> colo_do_checkpoint_transaction(MigrationState *s,
> > >                                            QIOChannelBuffer *bioc,
> > >                                            QEMUFile *fb)
> > >  {
> > > +#ifdef CONFIG_REPLICATION
> > >      Error *local_err = NULL;
> > >      int ret = -1;
> > >
> > > @@ -483,6 +493,9 @@ out:
> > >          error_report_err(local_err);
> > >      }
> > >      return ret;
> > > +#else
> > > +    abort();
> > > +#endif
> > >  }
> > >
> > >  static void colo_compare_notify_checkpoint(Notifier *notifier, void
> *data)
> > > @@ -790,13 +803,16 @@ void *colo_process_incoming_thread(void *opaque)
> > >              qemu_mutex_unlock_iothread();
> > >              goto out;
> > >          }
> > > +#ifdef CONFIG_REPLICATION
> > >          /* discard colo disk buffer */
> > >          replication_do_checkpoint_all(&local_err);
> > >          if (local_err) {
> > >              qemu_mutex_unlock_iothread();
> > >              goto out;
> > >          }
> > > -
> > > +#else
> > > +        abort();
> > > +#endif
> > >          /* Notify all filters of all NIC to do checkpoint */
> > >          colo_notify_filters_event(COLO_EVENT_CHECKPOINT, &local_err);
> > >
> > > --
> > > 2.17.GIT
> > >
> > --
> > Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
> --
> Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
>
Zhang Chen Nov. 1, 2018, 2:12 a.m. UTC | #5
On Wed, Oct 31, 2018 at 3:54 AM Dr. David Alan Gilbert <dgilbert@redhat.com>
wrote:

> * Zhang Chen (zhangckid@gmail.com) wrote:
> > This compilation issue will occur when user use --disable-replication
> > to config Qemu.
> >
> > Reported-by: Thomas Huth <thuth@redhat.com>
> > Signed-off-by: Zhang Chen <zhangckid@gmail.com>
>
> OK; do we need to add a check to migrate_caps_check to stop you enabling
> colo in this case?
>
>
Make sense, I will send another patch latter.

Thanks
Zhang Chen


>
> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
>
> > ---
> >  migration/colo.c | 18 +++++++++++++++++-
> >  1 file changed, 17 insertions(+), 1 deletion(-)
> >
> > diff --git a/migration/colo.c b/migration/colo.c
> > index 956ac236b7..b81e6ec5bb 100644
> > --- a/migration/colo.c
> > +++ b/migration/colo.c
> > @@ -59,6 +59,8 @@ static bool colo_runstate_is_stopped(void)
> >
> >  static void secondary_vm_do_failover(void)
> >  {
> > +/* COLO needs enable block-replication */
> > +#ifdef CONFIG_REPLICATION
> >      int old_state;
> >      MigrationIncomingState *mis = migration_incoming_get_current();
> >      Error *local_err = NULL;
> > @@ -121,10 +123,14 @@ static void secondary_vm_do_failover(void)
> >      if (mis->migration_incoming_co) {
> >          qemu_coroutine_enter(mis->migration_incoming_co);
> >      }
> > +#else
> > +    abort();
> > +#endif
> >  }
> >
> >  static void primary_vm_do_failover(void)
> >  {
> > +#ifdef CONFIG_REPLICATION
> >      MigrationState *s = migrate_get_current();
> >      int old_state;
> >      Error *local_err = NULL;
> > @@ -165,6 +171,9 @@ static void primary_vm_do_failover(void)
> >
> >      /* Notify COLO thread that failover work is finished */
> >      qemu_sem_post(&s->colo_exit_sem);
> > +#else
> > +    abort();
> > +#endif
> >  }
> >
> >  COLOMode get_colo_mode(void)
> > @@ -373,6 +382,7 @@ static int
> colo_do_checkpoint_transaction(MigrationState *s,
> >                                            QIOChannelBuffer *bioc,
> >                                            QEMUFile *fb)
> >  {
> > +#ifdef CONFIG_REPLICATION
> >      Error *local_err = NULL;
> >      int ret = -1;
> >
> > @@ -483,6 +493,9 @@ out:
> >          error_report_err(local_err);
> >      }
> >      return ret;
> > +#else
> > +    abort();
> > +#endif
> >  }
> >
> >  static void colo_compare_notify_checkpoint(Notifier *notifier, void
> *data)
> > @@ -790,13 +803,16 @@ void *colo_process_incoming_thread(void *opaque)
> >              qemu_mutex_unlock_iothread();
> >              goto out;
> >          }
> > +#ifdef CONFIG_REPLICATION
> >          /* discard colo disk buffer */
> >          replication_do_checkpoint_all(&local_err);
> >          if (local_err) {
> >              qemu_mutex_unlock_iothread();
> >              goto out;
> >          }
> > -
> > +#else
> > +        abort();
> > +#endif
> >          /* Notify all filters of all NIC to do checkpoint */
> >          colo_notify_filters_event(COLO_EVENT_CHECKPOINT, &local_err);
> >
> > --
> > 2.17.GIT
> >
> --
> Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
>
diff mbox series

Patch

diff --git a/migration/colo.c b/migration/colo.c
index 956ac236b7..b81e6ec5bb 100644
--- a/migration/colo.c
+++ b/migration/colo.c
@@ -59,6 +59,8 @@  static bool colo_runstate_is_stopped(void)
 
 static void secondary_vm_do_failover(void)
 {
+/* COLO needs enable block-replication */
+#ifdef CONFIG_REPLICATION
     int old_state;
     MigrationIncomingState *mis = migration_incoming_get_current();
     Error *local_err = NULL;
@@ -121,10 +123,14 @@  static void secondary_vm_do_failover(void)
     if (mis->migration_incoming_co) {
         qemu_coroutine_enter(mis->migration_incoming_co);
     }
+#else
+    abort();
+#endif
 }
 
 static void primary_vm_do_failover(void)
 {
+#ifdef CONFIG_REPLICATION
     MigrationState *s = migrate_get_current();
     int old_state;
     Error *local_err = NULL;
@@ -165,6 +171,9 @@  static void primary_vm_do_failover(void)
 
     /* Notify COLO thread that failover work is finished */
     qemu_sem_post(&s->colo_exit_sem);
+#else
+    abort();
+#endif
 }
 
 COLOMode get_colo_mode(void)
@@ -373,6 +382,7 @@  static int colo_do_checkpoint_transaction(MigrationState *s,
                                           QIOChannelBuffer *bioc,
                                           QEMUFile *fb)
 {
+#ifdef CONFIG_REPLICATION
     Error *local_err = NULL;
     int ret = -1;
 
@@ -483,6 +493,9 @@  out:
         error_report_err(local_err);
     }
     return ret;
+#else
+    abort();
+#endif
 }
 
 static void colo_compare_notify_checkpoint(Notifier *notifier, void *data)
@@ -790,13 +803,16 @@  void *colo_process_incoming_thread(void *opaque)
             qemu_mutex_unlock_iothread();
             goto out;
         }
+#ifdef CONFIG_REPLICATION
         /* discard colo disk buffer */
         replication_do_checkpoint_all(&local_err);
         if (local_err) {
             qemu_mutex_unlock_iothread();
             goto out;
         }
-
+#else
+        abort();
+#endif
         /* Notify all filters of all NIC to do checkpoint */
         colo_notify_filters_event(COLO_EVENT_CHECKPOINT, &local_err);