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[Qemu-devel] [PATCH 05/18] migration: make qemu_fopen_ops_buffered() ret
From: |
Juan Quintela |
Subject: |
[Qemu-devel] [PATCH 05/18] migration: make qemu_fopen_ops_buffered() return void |
Date: |
Mon, 29 Oct 2012 15:11:30 +0100 |
We want the file assignment to happen before the thread is created to
avoid locking, so we just do it before creating the thread.
Signed-off-by: Juan Quintela <address@hidden>
Reviewed-by: Orit Wasserman <address@hidden>
---
buffered_file.c | 13 ++++++-------
buffered_file.h | 2 +-
migration.c | 2 +-
migration.h | 1 +
4 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/buffered_file.c b/buffered_file.c
index ec7abc6..7bbee13 100644
--- a/buffered_file.c
+++ b/buffered_file.c
@@ -33,7 +33,6 @@ typedef struct QEMUFileBuffered
size_t buffer_size;
size_t buffer_capacity;
QemuThread thread;
- bool complete;
} QEMUFileBuffered;
#ifdef DEBUG_BUFFERED_FILE
@@ -163,7 +162,7 @@ static int buffered_close(void *opaque)
ret = ret2;
}
ret = migrate_fd_close(s->migration_state);
- s->complete = true;
+ s->migration_state->complete = true;
return ret;
}
@@ -225,7 +224,7 @@ static void *buffered_file_thread(void *opaque)
while (true) {
int64_t current_time = qemu_get_clock_ms(rt_clock);
- if (s->complete) {
+ if (s->migration_state->complete) {
break;
}
if (s->freeze_output) {
@@ -248,7 +247,7 @@ static void *buffered_file_thread(void *opaque)
return NULL;
}
-QEMUFile *qemu_fopen_ops_buffered(MigrationState *migration_state)
+void qemu_fopen_ops_buffered(MigrationState *migration_state)
{
QEMUFileBuffered *s;
@@ -256,15 +255,15 @@ QEMUFile *qemu_fopen_ops_buffered(MigrationState
*migration_state)
s->migration_state = migration_state;
s->xfer_limit = migration_state->bandwidth_limit / 10;
- s->complete = false;
+ s->migration_state->complete = false;
s->file = qemu_fopen_ops(s, buffered_put_buffer, NULL,
buffered_close, buffered_rate_limit,
buffered_set_rate_limit,
buffered_get_rate_limit);
+ migration_state->file = s->file;
+
qemu_thread_create(&s->thread, buffered_file_thread, s,
QEMU_THREAD_DETACHED);
-
- return s->file;
}
diff --git a/buffered_file.h b/buffered_file.h
index ef010fe..8a246fd 100644
--- a/buffered_file.h
+++ b/buffered_file.h
@@ -17,6 +17,6 @@
#include "hw/hw.h"
#include "migration.h"
-QEMUFile *qemu_fopen_ops_buffered(MigrationState *migration_state);
+void qemu_fopen_ops_buffered(MigrationState *migration_state);
#endif
diff --git a/migration.c b/migration.c
index bd55a15..c39fa7e 100644
--- a/migration.c
+++ b/migration.c
@@ -428,7 +428,7 @@ void migrate_fd_connect(MigrationState *s)
int ret;
s->state = MIG_STATE_ACTIVE;
- s->file = qemu_fopen_ops_buffered(s);
+ qemu_fopen_ops_buffered(s);
DPRINTF("beginning savevm\n");
ret = qemu_savevm_state_begin(s->file, &s->params);
diff --git a/migration.h b/migration.h
index c3a23cc..b66fd60 100644
--- a/migration.h
+++ b/migration.h
@@ -45,6 +45,7 @@ struct MigrationState
int64_t dirty_pages_rate;
bool enabled_capabilities[MIGRATION_CAPABILITY_MAX];
int64_t xbzrle_cache_size;
+ bool complete;
};
void process_incoming_migration(QEMUFile *f);
--
1.7.11.7
- [Qemu-devel] [PATCH 00/18] Migration thread lite (20121029), Juan Quintela, 2012/10/29
- [Qemu-devel] [PATCH 01/18] split MRU ram list, Juan Quintela, 2012/10/29
- [Qemu-devel] [PATCH 04/18] buffered_file: Move from using a timer to use a thread, Juan Quintela, 2012/10/29
- [Qemu-devel] [PATCH 05/18] migration: make qemu_fopen_ops_buffered() return void,
Juan Quintela <=
- [Qemu-devel] [PATCH 06/18] migration: stop all cpus correctly, Juan Quintela, 2012/10/29
- [Qemu-devel] [PATCH 02/18] add a version number to ram_list, Juan Quintela, 2012/10/29
- [Qemu-devel] [PATCH 03/18] protect the ramlist with a separate mutex, Juan Quintela, 2012/10/29
- [Qemu-devel] [PATCH 09/18] migration: take finer locking, Juan Quintela, 2012/10/29
- [Qemu-devel] [PATCH 07/18] migration: make writes blocking, Juan Quintela, 2012/10/29