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[3/4] btrfs: Record delta directly in transaction_kthread

Message ID 20201008122430.93433-4-nborisov@suse.com (mailing list archive)
State New, archived
Headers show
Series Small QOI fixes for transaction_kthread | expand

Commit Message

Nikolay Borisov Oct. 8, 2020, 12:24 p.m. UTC 
Rename 'now' to 'delta' and store there the delta between transaction
start time and current time. This is in preparation for optimising the
sleep logic in the next patch. No functional changes.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
---
 fs/btrfs/disk-io.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index b9fbbf66ccee..c5d3e7f75066 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1715,7 +1715,7 @@  static int transaction_kthread(void *arg)
 	struct btrfs_trans_handle *trans;
 	struct btrfs_transaction *cur;
 	u64 transid;
-	time64_t now;
+	time64_t delta;
 	unsigned long delay;
 	bool cannot_commit;
 
@@ -1731,9 +1731,9 @@  static int transaction_kthread(void *arg)
 			goto sleep;
 		}
 
-		now = ktime_get_seconds();
+		delta = ktime_get_seconds() - cur->start_time;
 		if (cur->state < TRANS_STATE_COMMIT_START &&
-		    (now - cur->start_time < fs_info->commit_interval)) {
+		    delta < fs_info->commit_interval) {
 			spin_unlock(&fs_info->trans_lock);
 			delay = msecs_to_jiffies(5000);
 			goto sleep;