btrfs: calculate more accurate remaining time to sleep in transaction_kthread

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If transaction_kthread is woken up before btrfs_fs_info::commit_interval
seconds have elapsed it will sleep for a fixed period of 5 seconds. This
is not a problem per-se but is not accurate. Instead the code should
sleep for an interval which guarantees on next wakeup commit_interval
would have passed. Since time tracking is not precise subtract 1 second
from delta to ensure the delay we end up waiting will be longer than
than the wake up period.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Nikolay Borisov 2020-10-20 12:44:17 +03:00 • committed by David Sterba

parent 643900bee4

commit fb8a7e941b

1 changed files with 3 additions and 1 deletions

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fs/btrfs/disk-io.c

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