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[Qemu-devel] [PATCH v2] migration/postcopy: use mis->bh instead of alloc
From: |
Wei Yang |
Subject: |
[Qemu-devel] [PATCH v2] migration/postcopy: use mis->bh instead of allocating a QEMUBH |
Date: |
Thu, 25 Jul 2019 08:25:51 +0800 |
For migration incoming side, it either quit in precopy or postcopy. It
is safe to use the mis->bh for both instead of allocating a dedicated
QEMUBH for postcopy.
Signed-off-by: Wei Yang <address@hidden>
Reviewed-by: Dr. David Alan Gilbert <address@hidden>
---
v2: fix a typo in change log
---
migration/savevm.c | 17 ++++-------------
1 file changed, 4 insertions(+), 13 deletions(-)
diff --git a/migration/savevm.c b/migration/savevm.c
index 20eb116e7f..f87444ae4e 100644
--- a/migration/savevm.c
+++ b/migration/savevm.c
@@ -1860,16 +1860,10 @@ static int
loadvm_postcopy_handle_listen(MigrationIncomingState *mis)
return 0;
}
-
-typedef struct {
- QEMUBH *bh;
-} HandleRunBhData;
-
static void loadvm_postcopy_handle_run_bh(void *opaque)
{
Error *local_err = NULL;
- HandleRunBhData *data = opaque;
- MigrationIncomingState *mis = migration_incoming_get_current();
+ MigrationIncomingState *mis = opaque;
/* TODO we should move all of this lot into postcopy_ram.c or a shared code
* in migration.c
@@ -1901,8 +1895,7 @@ static void loadvm_postcopy_handle_run_bh(void *opaque)
runstate_set(RUN_STATE_PAUSED);
}
- qemu_bh_delete(data->bh);
- g_free(data);
+ qemu_bh_delete(mis->bh);
}
/* After all discards we can start running and asking for pages */
@@ -1910,7 +1903,6 @@ static int
loadvm_postcopy_handle_run(MigrationIncomingState *mis)
{
PostcopyState old_ps = POSTCOPY_INCOMING_LISTENING;
PostcopyState ps = postcopy_state_set(POSTCOPY_INCOMING_RUNNING, &old_ps);
- HandleRunBhData *data;
trace_loadvm_postcopy_handle_run();
if (ps != old_ps) {
@@ -1918,9 +1910,8 @@ static int
loadvm_postcopy_handle_run(MigrationIncomingState *mis)
return -1;
}
- data = g_new(HandleRunBhData, 1);
- data->bh = qemu_bh_new(loadvm_postcopy_handle_run_bh, data);
- qemu_bh_schedule(data->bh);
+ mis->bh = qemu_bh_new(loadvm_postcopy_handle_run_bh, mis);
+ qemu_bh_schedule(mis->bh);
/* We need to finish reading the stream from the package
* and also stop reading anything more from the stream that loaded the
--
2.17.1
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