diff options
Diffstat (limited to 'migration/block.c')
| -rw-r--r-- | migration/block.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/migration/block.c b/migration/block.c index 5c03632257..4c04d937b1 100644 --- a/migration/block.c +++ b/migration/block.c @@ -37,6 +37,7 @@ #define MAX_IS_ALLOCATED_SEARCH (65536 * BDRV_SECTOR_SIZE) #define MAX_IO_BUFFERS 512 +#define MAX_PARALLEL_IO 16 //#define DEBUG_BLK_MIGRATION @@ -772,9 +773,9 @@ static int block_save_iterate(QEMUFile *f, void *opaque) /* control the rate of transfer */ blk_mig_lock(); - while ((block_mig_state.submitted + - block_mig_state.read_done) * BLOCK_SIZE < + while (block_mig_state.read_done * BLOCK_SIZE < qemu_file_get_rate_limit(f) && + block_mig_state.submitted < MAX_PARALLEL_IO && (block_mig_state.submitted + block_mig_state.read_done) < MAX_IO_BUFFERS) { blk_mig_unlock(); |