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qemu-kvm/SOURCES/kvm-migration-Move-migrate_...

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From 145b630767dbc7020ddf39b20075f4691f71321a Mon Sep 17 00:00:00 2001
From: Juan Quintela <quintela@redhat.com>
Date: Wed, 1 Mar 2023 22:25:47 +0100
Subject: [PATCH 31/56] migration: Move migrate_use_return() 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: [30/50] 5cc150188bcc61b69ea0844253597594ab18fc13 (peterx/qemu-kvm)
Once that we are there, we rename the function to migrate_return_path()
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 38ad1110e368bf91453c0abbd657224d57b65d47)
Signed-off-by: Peter Xu <peterx@redhat.com>
---
migration/migration.c | 11 +----------
migration/migration.h | 1 -
migration/options.c | 9 +++++++++
migration/options.h | 1 +
migration/rdma.c | 6 +++---
5 files changed, 14 insertions(+), 14 deletions(-)
diff --git a/migration/migration.c b/migration/migration.c
index 96f82bd165..f7facecd66 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -2622,15 +2622,6 @@ static int64_t migrate_max_postcopy_bandwidth(void)
return s->parameters.max_postcopy_bandwidth;
}
-bool migrate_use_return_path(void)
-{
- MigrationState *s;
-
- s = migrate_get_current();
-
- return s->capabilities[MIGRATION_CAPABILITY_RETURN_PATH];
-}
-
bool migrate_use_block_incremental(void)
{
MigrationState *s;
@@ -4175,7 +4166,7 @@ void migrate_fd_connect(MigrationState *s, Error *error_in)
* precopy, only if user specified "return-path" capability would
* QEMU uses the return path.
*/
- if (migrate_postcopy_ram() || migrate_use_return_path()) {
+ if (migrate_postcopy_ram() || migrate_return_path()) {
if (open_return_path_on_source(s, !resume)) {
error_report("Unable to open return-path for postcopy");
migrate_set_state(&s->state, s->state, MIGRATION_STATUS_FAILED);
diff --git a/migration/migration.h b/migration/migration.h
index d4b68b08a5..24184622a8 100644
--- a/migration/migration.h
+++ b/migration/migration.h
@@ -459,7 +459,6 @@ uint64_t migrate_xbzrle_cache_size(void);
bool migrate_use_block_incremental(void);
int migrate_max_cpu_throttle(void);
-bool migrate_use_return_path(void);
uint64_t ram_get_total_transferred_pages(void);
diff --git a/migration/options.c b/migration/options.c
index fe1eadeed6..2003e413da 100644
--- a/migration/options.c
+++ b/migration/options.c
@@ -147,6 +147,15 @@ bool migrate_release_ram(void)
return s->capabilities[MIGRATION_CAPABILITY_RELEASE_RAM];
}
+bool migrate_return_path(void)
+{
+ MigrationState *s;
+
+ s = migrate_get_current();
+
+ return s->capabilities[MIGRATION_CAPABILITY_RETURN_PATH];
+}
+
bool migrate_validate_uuid(void)
{
MigrationState *s;
diff --git a/migration/options.h b/migration/options.h
index e985a5233e..316efd1063 100644
--- a/migration/options.h
+++ b/migration/options.h
@@ -31,6 +31,7 @@ bool migrate_postcopy_blocktime(void);
bool migrate_postcopy_preempt(void);
bool migrate_postcopy_ram(void);
bool migrate_release_ram(void);
+bool migrate_return_path(void);
bool migrate_validate_uuid(void);
bool migrate_xbzrle(void);
bool migrate_zero_blocks(void);
diff --git a/migration/rdma.c b/migration/rdma.c
index f35f021963..bf55e2f163 100644
--- a/migration/rdma.c
+++ b/migration/rdma.c
@@ -3373,7 +3373,7 @@ static int qemu_rdma_accept(RDMAContext *rdma)
* initialize the RDMAContext for return path for postcopy after first
* connection request reached.
*/
- if ((migrate_postcopy() || migrate_use_return_path())
+ if ((migrate_postcopy() || migrate_return_path())
&& !rdma->is_return_path) {
rdma_return_path = qemu_rdma_data_init(rdma->host_port, NULL);
if (rdma_return_path == NULL) {
@@ -3456,7 +3456,7 @@ static int qemu_rdma_accept(RDMAContext *rdma)
}
/* Accept the second connection request for return path */
- if ((migrate_postcopy() || migrate_use_return_path())
+ if ((migrate_postcopy() || migrate_return_path())
&& !rdma->is_return_path) {
qemu_set_fd_handler(rdma->channel->fd, rdma_accept_incoming_migration,
NULL,
@@ -4193,7 +4193,7 @@ void rdma_start_outgoing_migration(void *opaque,
}
/* RDMA postcopy need a separate queue pair for return path */
- if (migrate_postcopy() || migrate_use_return_path()) {
+ if (migrate_postcopy() || migrate_return_path()) {
rdma_return_path = qemu_rdma_data_init(host_port, errp);
if (rdma_return_path == NULL) {
--
2.39.1