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block migration: Fix outgoing progress output 

Report progress of an outgoing live migration to the monitor instead of
stdout.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Jan Kiszka 2009-11-30 18:21:21 +01:00 committed by Anthony Liguori
parent f327aa0c60
commit 7184049ee6
1 changed files with 30 additions and 24 deletions
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54
block-migration.c
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@ -15,6 +15,7 @@
#include "block_int.h"
#include "hw/hw.h"
#include "qemu-queue.h"
#include "monitor.h"
#include "block-migration.h"
#include <assert.h>
@ -103,7 +104,8 @@ static void blk_mig_read_cb(void *opaque, int ret)
assert(block_mig_state.submitted >= 0);
}
static int mig_save_device_bulk(QEMUFile *f, BlkMigDevState *bmds, int is_async)
static int mig_save_device_bulk(Monitor *mon, QEMUFile *f,
BlkMigDevState *bmds, int is_async)
{
int64_t total_sectors = bmds->total_sectors;
int64_t cur_sector = bmds->cur_sector;
@ -167,7 +169,7 @@ static int mig_save_device_bulk(QEMUFile *f, BlkMigDevState *bmds, int is_async)
return (bmds->cur_sector >= total_sectors);
error:
printf("Error reading sector %" PRId64 "\n", cur_sector);
monitor_printf(mon, "Error reading sector %" PRId64 "\n", cur_sector);
qemu_file_set_error(f);
qemu_free(blk->buf);
qemu_free(blk);
@ -183,7 +185,7 @@ static void set_dirty_tracking(int enable)
}
}
static void init_blk_migration(QEMUFile *f)
static void init_blk_migration(Monitor *mon, QEMUFile *f)
{
BlkMigDevState *bmds;
BlockDriverState *bs;
@ -206,10 +208,12 @@ static void init_blk_migration(QEMUFile *f)
block_mig_state.total_sector_sum += bmds->total_sectors;
if (bmds->shared_base) {
printf("Start migration for %s with shared base image\n",
bs->device_name);
monitor_printf(mon, "Start migration for %s with shared base "
"image\n",
bs->device_name);
} else {
printf("Start full migration for %s\n", bs->device_name);
monitor_printf(mon, "Start full migration for %s\n",
bs->device_name);
}
QSIMPLEQ_INSERT_TAIL(&block_mig_state.bmds_list, bmds, entry);
@ -217,7 +221,7 @@ static void init_blk_migration(QEMUFile *f)
}
}
static int blk_mig_save_bulked_block(QEMUFile *f, int is_async)
static int blk_mig_save_bulked_block(Monitor *mon, QEMUFile *f, int is_async)
{
int64_t completed_sector_sum = 0;
BlkMigDevState *bmds;
@ -225,7 +229,7 @@ static int blk_mig_save_bulked_block(QEMUFile *f, int is_async)
QSIMPLEQ_FOREACH(bmds, &block_mig_state.bmds_list, entry) {
if (bmds->bulk_completed == 0) {
if (mig_save_device_bulk(f, bmds, is_async) == 1) {
if (mig_save_device_bulk(mon, f, bmds, is_async) == 1) {
/* completed bulk section for this device */
bmds->bulk_completed = 1;
}
@ -238,9 +242,10 @@ static int blk_mig_save_bulked_block(QEMUFile *f, int is_async)
}
if (completed_sector_sum >= block_mig_state.print_completion) {
printf("Completed %" PRId64 " %%\r",
completed_sector_sum * 100 / block_mig_state.total_sector_sum);
fflush(stdout);
monitor_printf(mon, "Completed %" PRId64 " %%\r",
completed_sector_sum * 100 /
block_mig_state.total_sector_sum);
monitor_flush(mon);
block_mig_state.print_completion +=
(BDRV_SECTORS_PER_DIRTY_CHUNK * 10000);
}
@ -250,7 +255,7 @@ static int blk_mig_save_bulked_block(QEMUFile *f, int is_async)
#define MAX_NUM_BLOCKS 4
static void blk_mig_save_dirty_blocks(QEMUFile *f)
static void blk_mig_save_dirty_blocks(Monitor *mon, QEMUFile *f)
{
BlkMigDevState *bmds;
BlkMigBlock blk;
@ -263,7 +268,8 @@ static void blk_mig_save_dirty_blocks(QEMUFile *f)
if (bdrv_get_dirty(bmds->bs, sector)) {
if (bdrv_read(bmds->bs, sector, blk.buf,
BDRV_SECTORS_PER_DIRTY_CHUNK) < 0) {
printf("Error reading sector %" PRId64 "\n", sector);
monitor_printf(mon, "Error reading sector %" PRId64 "\n",
sector);
qemu_file_set_error(f);
qemu_free(blk.buf);
return;
@ -331,7 +337,7 @@ static int is_stage2_completed(void)
return 1;
}
static void blk_mig_cleanup(void)
static void blk_mig_cleanup(Monitor *mon)
{
BlkMigDevState *bmds;
BlkMigBlock *blk;
@ -349,7 +355,7 @@ static void blk_mig_cleanup(void)
set_dirty_tracking(0);
printf("\n");
monitor_printf(mon, "\n");
}
static int block_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
@ -358,7 +364,7 @@ static int block_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
stage, block_mig_state.submitted, block_mig_state.transferred);
if (stage < 0) {
blk_mig_cleanup();
blk_mig_cleanup(mon);
return 0;
}
@ -369,7 +375,7 @@ static int block_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
}
if (stage == 1) {
init_blk_migration(f);
init_blk_migration(mon, f);
/* start track dirty blocks */
set_dirty_tracking(1);
@ -378,7 +384,7 @@ static int block_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
flush_blks(f);
if (qemu_file_has_error(f)) {
blk_mig_cleanup();
blk_mig_cleanup(mon);
return 0;
}
@ -386,7 +392,7 @@ static int block_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
while ((block_mig_state.submitted +
block_mig_state.read_done) * BLOCK_SIZE <
qemu_file_get_rate_limit(f)) {
if (blk_mig_save_bulked_block(f, 1) == 0) {
if (blk_mig_save_bulked_block(mon, f, 1) == 0) {
/* no more bulk blocks for now */
break;
}
@ -395,23 +401,23 @@ static int block_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
flush_blks(f);
if (qemu_file_has_error(f)) {
blk_mig_cleanup();
blk_mig_cleanup(mon);
return 0;
}
if (stage == 3) {
while (blk_mig_save_bulked_block(f, 0) != 0) {
while (blk_mig_save_bulked_block(mon, f, 0) != 0) {
/* empty */
}
blk_mig_save_dirty_blocks(f);
blk_mig_cleanup();
blk_mig_save_dirty_blocks(mon, f);
blk_mig_cleanup(mon);
if (qemu_file_has_error(f)) {
return 0;
}
printf("Block migration completed\n");
monitor_printf(mon, "Block migration completed\n");
}
qemu_put_be64(f, BLK_MIG_FLAG_EOS);