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migration: allow rate > 4g 

I'd like to disable bandwidth limit or make it very high,
Use int64_t all over to make values >= 4g work.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Michael S. Tsirkin 2010-11-23 19:05:54 +02:00
parent b2e0a138e7
commit 3d002df33e
4 changed files with 16 additions and 11 deletions
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9
buffered_file.c
View File

@ -206,20 +206,23 @@ static int buffered_rate_limit(void *opaque)
return 0;
}
static size_t buffered_set_rate_limit(void *opaque, size_t new_rate)
static int64_t buffered_set_rate_limit(void *opaque, int64_t new_rate)
{
QEMUFileBuffered *s = opaque;
if (s->has_error)
goto out;
if (new_rate > SIZE_MAX) {
new_rate = SIZE_MAX;
}
s->xfer_limit = new_rate / 10;
out:
return s->xfer_limit;
}
static size_t buffered_get_rate_limit(void *opaque)
static int64_t buffered_get_rate_limit(void *opaque)
{
QEMUFileBuffered *s = opaque;

8
hw/hw.h
View File

@ -39,8 +39,8 @@ typedef int (QEMUFileRateLimit)(void *opaque);
* the new actual bandwidth. It should be new_rate if everything goes ok, and
* the old rate otherwise
*/
typedef size_t (QEMUFileSetRateLimit)(void *opaque, size_t new_rate);
typedef size_t (QEMUFileGetRateLimit)(void *opaque);
typedef int64_t (QEMUFileSetRateLimit)(void *opaque, int64_t new_rate);
typedef int64_t (QEMUFileGetRateLimit)(void *opaque);
QEMUFile *qemu_fopen_ops(void *opaque, QEMUFilePutBufferFunc *put_buffer,
QEMUFileGetBufferFunc *get_buffer,
@ -83,8 +83,8 @@ unsigned int qemu_get_be16(QEMUFile *f);
unsigned int qemu_get_be32(QEMUFile *f);
uint64_t qemu_get_be64(QEMUFile *f);
int qemu_file_rate_limit(QEMUFile *f);
size_t qemu_file_set_rate_limit(QEMUFile *f, size_t new_rate);
size_t qemu_file_get_rate_limit(QEMUFile *f);
int64_t qemu_file_set_rate_limit(QEMUFile *f, int64_t new_rate);
int64_t qemu_file_get_rate_limit(QEMUFile *f);
int qemu_file_has_error(QEMUFile *f);
void qemu_file_set_error(QEMUFile *f);

6
migration.c
View File

@ -32,7 +32,7 @@
#endif
/* Migration speed throttling */
static uint32_t max_throttle = (32 << 20);
static int64_t max_throttle = (32 << 20);
static MigrationState *current_migration;
@ -136,7 +136,9 @@ int do_migrate_set_speed(Monitor *mon, const QDict *qdict, QObject **ret_data)
FdMigrationState *s;
d = qdict_get_int(qdict, "value");
d = MAX(0, MIN(UINT32_MAX, d));
if (d < 0) {
d = 0;
}
max_throttle = d;
s = migrate_to_fms(current_migration);

4
savevm.c
View File

@ -611,7 +611,7 @@ int qemu_file_rate_limit(QEMUFile *f)
return 0;
}
size_t qemu_file_get_rate_limit(QEMUFile *f)
int64_t qemu_file_get_rate_limit(QEMUFile *f)
{
if (f->get_rate_limit)
return f->get_rate_limit(f->opaque);
@ -619,7 +619,7 @@ size_t qemu_file_get_rate_limit(QEMUFile *f)
return 0;
}
size_t qemu_file_set_rate_limit(QEMUFile *f, size_t new_rate)
int64_t qemu_file_set_rate_limit(QEMUFile *f, int64_t new_rate)
{
/* any failed or completed migration keeps its state to allow probing of
* migration data, but has no associated file anymore */