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migration: Put thread names together with macros

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Keep migration thread names together, so it's easier to see a list of all
possible migration threads.

Still two functional changes below besides the macro defintions:

  - There's one dirty rate thread that we overlooked before, now we add
  that too and name it as "mig/dirtyrate" following the old rules.

  - The old name "mig/src/rp-thr" has "-thr" but it may not be useful if
  it's a thread name anyway, while "rp" can be slightly hard to read.
  Taking this chance to rename it to "mig/src/return", hopefully a better
  name.

Reviewed-by: Fabiano Rosas <farosas@suse.de>
Acked-by: Hyman Huang <yong.huang@smartx.com>
Reviewed-by: Zhang Chen <chen.zhang@intel.com>
Link: https://lore.kernel.org/r/20241011153652.517440-1-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
This commit is contained in:
Peter Xu 2024-10-11 11:36:52 -04:00
parent 6dd4f44c4f
commit e620b1e477
7 changed files with 34 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

9
migration/migration.c
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@ -2484,7 +2484,7 @@ static int open_return_path_on_source(MigrationState *ms)
trace_open_return_path_on_source();
qemu_thread_create(&ms->rp_state.rp_thread, "mig/src/rp-thr",
qemu_thread_create(&ms->rp_state.rp_thread, MIGRATION_THREAD_SRC_RETURN,
source_return_path_thread, ms, QEMU_THREAD_JOINABLE);
ms->rp_state.rp_thread_created = true;
@ -3473,7 +3473,8 @@ static void *migration_thread(void *opaque)
Error *local_err = NULL;
int ret;
thread = migration_threads_add("live_migration", qemu_get_thread_id());
thread = migration_threads_add(MIGRATION_THREAD_SRC_MAIN,
qemu_get_thread_id());
rcu_register_thread();
@ -3823,10 +3824,10 @@ void migrate_fd_connect(MigrationState *s, Error *error_in)
}
if (migrate_background_snapshot()) {
qemu_thread_create(&s->thread, "mig/snapshot",
qemu_thread_create(&s->thread, MIGRATION_THREAD_SNAPSHOT,
bg_migration_thread, s, QEMU_THREAD_JOINABLE);
} else {
qemu_thread_create(&s->thread, "mig/src/main",
qemu_thread_create(&s->thread, MIGRATION_THREAD_SRC_MAIN,
migration_thread, s, QEMU_THREAD_JOINABLE);
}
s->migration_thread_running = true;