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-rw-r--r--fs/btrfs/volumes.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 9d361819200..27d5f37b845 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -161,6 +161,7 @@ static noinline int run_scheduled_bios(struct btrfs_device *device)
int again = 0;
unsigned long num_run;
unsigned long num_sync_run;
+ unsigned long batch_run = 0;
unsigned long limit;
unsigned long last_waited = 0;
int force_reg = 0;
@@ -257,6 +258,8 @@ loop_lock:
BUG_ON(atomic_read(&cur->bi_cnt) == 0);
submit_bio(cur->bi_rw, cur);
num_run++;
+ batch_run++;
+
if (bio_sync(cur))
num_sync_run++;
@@ -273,7 +276,7 @@ loop_lock:
* is now congested. Back off and let other work structs
* run instead
*/
- if (pending && bdi_write_congested(bdi) && num_run > 16 &&
+ if (pending && bdi_write_congested(bdi) && batch_run > 32 &&
fs_info->fs_devices->open_devices > 1) {
struct io_context *ioc;