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[PULL 16/38] migration/rdma: Unfold ram_control_after_iterate()
From: |
Juan Quintela |
Subject: |
[PULL 16/38] migration/rdma: Unfold ram_control_after_iterate() |
Date: |
Mon, 16 Oct 2023 12:06:44 +0200 |
Once there:
- Remove unused data parameter
- unfold it in its callers
- change all callers to call qemu_rdma_registration_stop()
- We need to call QIO_CHANNEL_RDMA() after we check for migrate_rdma()
Reviewed-by: Li Zhijian <lizhijian@fujitsu.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20231011203527.9061-4-quintela@redhat.com>
---
migration/qemu-file.h | 2 --
migration/rdma.h | 3 +++
migration/qemu-file.c | 12 ------------
migration/ram.c | 17 ++++++++++++++---
migration/rdma.c | 9 ++++-----
5 files changed, 21 insertions(+), 22 deletions(-)
diff --git a/migration/qemu-file.h b/migration/qemu-file.h
index d6a370c569..35e671a01e 100644
--- a/migration/qemu-file.h
+++ b/migration/qemu-file.h
@@ -55,7 +55,6 @@ typedef int (QEMURamSaveFunc)(QEMUFile *f,
size_t size);
typedef struct QEMUFileHooks {
- QEMURamHookFunc *after_ram_iterate;
QEMURamHookFunc *hook_ram_load;
QEMURamSaveFunc *save_page;
} QEMUFileHooks;
@@ -126,7 +125,6 @@ void qemu_fflush(QEMUFile *f);
void qemu_file_set_blocking(QEMUFile *f, bool block);
int qemu_file_get_to_fd(QEMUFile *f, int fd, size_t size);
-void ram_control_after_iterate(QEMUFile *f, uint64_t flags);
void ram_control_load_hook(QEMUFile *f, uint64_t flags, void *data);
/* Whenever this is found in the data stream, the flags
diff --git a/migration/rdma.h b/migration/rdma.h
index 670c67a8cb..c13b94c782 100644
--- a/migration/rdma.h
+++ b/migration/rdma.h
@@ -25,8 +25,11 @@ void rdma_start_incoming_migration(const char *host_port,
Error **errp);
#ifdef CONFIG_RDMA
int qemu_rdma_registration_start(QEMUFile *f, uint64_t flags);
+int qemu_rdma_registration_stop(QEMUFile *f, uint64_t flags);
#else
static inline
int qemu_rdma_registration_start(QEMUFile *f, uint64_t flags) { return 0; }
+static inline
+int qemu_rdma_registration_stop(QEMUFile *f, uint64_t flags) { return 0; }
#endif
#endif
diff --git a/migration/qemu-file.c b/migration/qemu-file.c
index 5e2d73fd68..e7dba2a849 100644
--- a/migration/qemu-file.c
+++ b/migration/qemu-file.c
@@ -298,18 +298,6 @@ void qemu_fflush(QEMUFile *f)
f->iovcnt = 0;
}
-void ram_control_after_iterate(QEMUFile *f, uint64_t flags)
-{
- int ret = 0;
-
- if (f->hooks && f->hooks->after_ram_iterate) {
- ret = f->hooks->after_ram_iterate(f, flags, NULL);
- if (ret < 0) {
- qemu_file_set_error(f, ret);
- }
- }
-}
-
void ram_control_load_hook(QEMUFile *f, uint64_t flags, void *data)
{
if (f->hooks && f->hooks->hook_ram_load) {
diff --git a/migration/ram.c b/migration/ram.c
index 6592431a4e..f1ddc1f9fa 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -3065,7 +3065,11 @@ static int ram_save_setup(QEMUFile *f, void *opaque)
if (ret < 0) {
qemu_file_set_error(f, ret);
}
- ram_control_after_iterate(f, RAM_CONTROL_SETUP);
+
+ ret = qemu_rdma_registration_stop(f, RAM_CONTROL_SETUP);
+ if (ret < 0) {
+ qemu_file_set_error(f, ret);
+ }
migration_ops = g_malloc0(sizeof(MigrationOps));
migration_ops->ram_save_target_page = ram_save_target_page_legacy;
@@ -3187,7 +3191,10 @@ static int ram_save_iterate(QEMUFile *f, void *opaque)
* Must occur before EOS (or any QEMUFile operation)
* because of RDMA protocol.
*/
- ram_control_after_iterate(f, RAM_CONTROL_ROUND);
+ ret = qemu_rdma_registration_stop(f, RAM_CONTROL_ROUND);
+ if (ret < 0) {
+ qemu_file_set_error(f, ret);
+ }
out:
if (ret >= 0
@@ -3260,7 +3267,11 @@ static int ram_save_complete(QEMUFile *f, void *opaque)
qemu_mutex_unlock(&rs->bitmap_mutex);
ram_flush_compressed_data(rs);
- ram_control_after_iterate(f, RAM_CONTROL_FINISH);
+
+ int ret = qemu_rdma_registration_stop(f, RAM_CONTROL_FINISH);
+ if (ret < 0) {
+ qemu_file_set_error(f, ret);
+ }
}
if (ret < 0) {
diff --git a/migration/rdma.c b/migration/rdma.c
index 3d74ad6db0..4b32d375ec 100644
--- a/migration/rdma.c
+++ b/migration/rdma.c
@@ -3878,20 +3878,20 @@ int qemu_rdma_registration_start(QEMUFile *f, uint64_t
flags)
* Inform dest that dynamic registrations are done for now.
* First, flush writes, if any.
*/
-static int qemu_rdma_registration_stop(QEMUFile *f,
- uint64_t flags, void *data)
+int qemu_rdma_registration_stop(QEMUFile *f, uint64_t flags)
{
- QIOChannelRDMA *rioc = QIO_CHANNEL_RDMA(qemu_file_get_ioc(f));
+ QIOChannelRDMA *rioc;
Error *err = NULL;
RDMAContext *rdma;
RDMAControlHeader head = { .len = 0, .repeat = 1 };
int ret;
- if (migration_in_postcopy()) {
+ if (!migrate_rdma() || migration_in_postcopy()) {
return 0;
}
RCU_READ_LOCK_GUARD();
+ rioc = QIO_CHANNEL_RDMA(qemu_file_get_ioc(f));
rdma = qatomic_rcu_read(&rioc->rdmaout);
if (!rdma) {
return -1;
@@ -3999,7 +3999,6 @@ static const QEMUFileHooks rdma_read_hooks = {
};
static const QEMUFileHooks rdma_write_hooks = {
- .after_ram_iterate = qemu_rdma_registration_stop,
.save_page = qemu_rdma_save_page,
};
--
2.41.0
- [PULL 05/38] migration: Add the configuration vmstate to the json writer, (continued)
- [PULL 05/38] migration: Add the configuration vmstate to the json writer, Juan Quintela, 2023/10/16
- [PULL 08/38] migration: Fix analyze-migration.py when ignore-shared is used, Juan Quintela, 2023/10/16
- [PULL 12/38] migration: hold the BQL during setup, Juan Quintela, 2023/10/16
- [PULL 13/38] migration: Non multifd migration don't care about multifd flushes, Juan Quintela, 2023/10/16
- [PULL 14/38] migration: Create migrate_rdma(), Juan Quintela, 2023/10/16
- [PULL 15/38] migration/rdma: Unfold ram_control_before_iterate(), Juan Quintela, 2023/10/16
- [PULL 09/38] migration: Fix analyze-migration read operation signedness, Juan Quintela, 2023/10/16
- [PULL 10/38] tests/qtest/migration: Add a test for the analyze-migration script, Juan Quintela, 2023/10/16
- [PULL 11/38] tests/qtest: migration-test: Add tests for file-based migration, Juan Quintela, 2023/10/16
- [PULL 18/38] migration/rdma: Unfold hook_ram_load(), Juan Quintela, 2023/10/16
- [PULL 16/38] migration/rdma: Unfold ram_control_after_iterate(),
Juan Quintela <=
- [PULL 20/38] qemu-file: Remove QEMUFileHooks, Juan Quintela, 2023/10/16
- [PULL 19/38] migration/rdma: Create rdma_control_save_page(), Juan Quintela, 2023/10/16
- [PULL 23/38] migration/rdma: Check sooner if we are in postcopy for save_page(), Juan Quintela, 2023/10/16
- [PULL 17/38] migration/rdma: Remove all uses of RAM_CONTROL_HOOK, Juan Quintela, 2023/10/16
- [PULL 24/38] migration/rdma: Use i as for index instead of idx, Juan Quintela, 2023/10/16
- [PULL 21/38] migration/rdma: Move rdma constants from qemu-file.h to rdma.h, Juan Quintela, 2023/10/16
- [PULL 25/38] migration/rdma: Declare for index variables local, Juan Quintela, 2023/10/16
- [PULL 22/38] migration/rdma: Remove qemu_ prefix from exported functions, Juan Quintela, 2023/10/16
- [PULL 26/38] migration/rdma: Remove all "ret" variables that are used only once, Juan Quintela, 2023/10/16
- [PULL 27/38] migration: Improve json and formatting, Juan Quintela, 2023/10/16