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migration/block: rename MAX_INFLIGHT_IO to MAX_IO_BUFFERS 

this actually limits (as the original commit mesage suggests) the
number of I/O buffers that can be allocated and not the number
of parallel (inflight) I/O requests.

Signed-off-by: Peter Lieven <pl@kamp.de>
Message-Id: <1520507908-16743-4-git-send-email-pl@kamp.de>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
master
Peter Lieven 2018-03-08 12:18:26 +01:00 committed by Dr. David Alan Gilbert
parent 86b124bc76
commit ef9c5160a1
1 changed files with 3 additions and 4 deletions
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7
migration/block.c
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@ -36,7 +36,7 @@
#define MAX_IS_ALLOCATED_SEARCH (65536 * BDRV_SECTOR_SIZE)
#define MAX_INFLIGHT_IO 512
#define MAX_IO_BUFFERS 512
//#define DEBUG_BLK_MIGRATION
@ -775,9 +775,8 @@ static int block_save_iterate(QEMUFile *f, void *opaque)
while ((block_mig_state.submitted +
block_mig_state.read_done) * BLOCK_SIZE <
qemu_file_get_rate_limit(f) &&
(block_mig_state.submitted +
block_mig_state.read_done) <
MAX_INFLIGHT_IO) {
(block_mig_state.submitted + block_mig_state.read_done) <
MAX_IO_BUFFERS) {
blk_mig_unlock();
if (block_mig_state.bulk_completed == 0) {
/* first finish the bulk phase */