qemu-kvm/kvm-migration-Move-migrate_use_block-to-options.c.patch

From 276877a71778a5cef0dc5bc843e2679f0fdabb77 Mon Sep 17 00:00:00 2001
From: Juan Quintela <quintela@redhat.com>
Date: Wed, 1 Mar 2023 22:23:57 +0100
Subject: [PATCH 30/56] migration: Move migrate_use_block() to options.c
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

RH-Author: Peter Xu <peterx@redhat.com>
RH-MergeRequest: 162: migration: Pretty failures for postcopy on unsupported memory types
RH-Bugzilla: 2057267
RH-Acked-by: Leonardo Brás <leobras@redhat.com>
RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
RH-Acked-by: quintela1 <quintela@redhat.com>
RH-Commit: [29/50] fcaeb0e07cf828f3cd0d115515b30d913525a0a2 (peterx/qemu-kvm)

Once that we are there, we rename the function to migrate_block()
to be consistent with all other capabilities.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
(cherry picked from commit 9d4b1e5f22a838285ebeb8f0eb7cc8df1161998f)
Signed-off-by: Peter Xu <peterx@redhat.com>
---
 migration/block.c     |  2 +-
 migration/migration.c | 11 +----------
 migration/migration.h |  1 -
 migration/options.c   |  9 +++++++++
 migration/options.h   |  1 +
 migration/savevm.c    |  2 +-
 6 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/migration/block.c b/migration/block.c
index 4b167fa5cf..f0977217cf 100644
--- a/migration/block.c
+++ b/migration/block.c
@@ -1001,7 +1001,7 @@ static int block_load(QEMUFile *f, void *opaque, int version_id)
 
 static bool block_is_active(void *opaque)
 {
-    return migrate_use_block();
+    return migrate_block();
 }
 
 static SaveVMHandlers savevm_block_handlers = {
diff --git a/migration/migration.c b/migration/migration.c
index a4ede4294e..96f82bd165 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -2415,7 +2415,7 @@ static bool migrate_prepare(MigrationState *s, bool blk, bool blk_inc,
             error_setg(errp, "No disk migration is required in COLO mode");
             return false;
         }
-        if (migrate_use_block() || migrate_use_block_incremental()) {
+        if (migrate_block() || migrate_use_block_incremental()) {
             error_setg(errp, "Command options are incompatible with "
                        "current migration capabilities");
             return false;
@@ -2622,15 +2622,6 @@ static int64_t migrate_max_postcopy_bandwidth(void)
     return s->parameters.max_postcopy_bandwidth;
 }
 
-bool migrate_use_block(void)
-{
-    MigrationState *s;
-
-    s = migrate_get_current();
-
-    return s->capabilities[MIGRATION_CAPABILITY_BLOCK];
-}
-
 bool migrate_use_return_path(void)
 {
     MigrationState *s;
diff --git a/migration/migration.h b/migration/migration.h
index e2bb5b1e2f..d4b68b08a5 100644
--- a/migration/migration.h
+++ b/migration/migration.h
@@ -457,7 +457,6 @@ int migrate_multifd_zstd_level(void);
 int migrate_use_tls(void);
 uint64_t migrate_xbzrle_cache_size(void);
 
-bool migrate_use_block(void);
 bool migrate_use_block_incremental(void);
 int migrate_max_cpu_throttle(void);
 bool migrate_use_return_path(void);
diff --git a/migration/options.c b/migration/options.c
index 25264c500e..fe1eadeed6 100644
--- a/migration/options.c
+++ b/migration/options.c
@@ -33,6 +33,15 @@ bool migrate_background_snapshot(void)
     return s->capabilities[MIGRATION_CAPABILITY_BACKGROUND_SNAPSHOT];
 }
 
+bool migrate_block(void)
+{
+    MigrationState *s;
+
+    s = migrate_get_current();
+
+    return s->capabilities[MIGRATION_CAPABILITY_BLOCK];
+}
+
 bool migrate_colo(void)
 {
     MigrationState *s = migrate_get_current();
diff --git a/migration/options.h b/migration/options.h
index 8f76a88329..e985a5233e 100644
--- a/migration/options.h
+++ b/migration/options.h
@@ -18,6 +18,7 @@
 
 bool migrate_auto_converge(void);
 bool migrate_background_snapshot(void);
+bool migrate_block(void);
 bool migrate_colo(void);
 bool migrate_compress(void);
 bool migrate_dirty_bitmaps(void);
diff --git a/migration/savevm.c b/migration/savevm.c
index ebcf571e37..9671211339 100644
--- a/migration/savevm.c
+++ b/migration/savevm.c
@@ -1612,7 +1612,7 @@ static int qemu_savevm_state(QEMUFile *f, Error **errp)
         return -EINVAL;
     }
 
-    if (migrate_use_block()) {
+    if (migrate_block()) {
         error_setg(errp, "Block migration and snapshots are incompatible");
         return -EINVAL;
     }
-- 
2.39.1