[Devel] [PATCH hci-8.1 v3 3/6] drivers/md/push_backup: do not re-arm deadline timer in push_backup_write()

[no-reply at sashiko.virtuozzo.com]

> pb_timer_func() checks pb->deadline_jiffies every time it fires,
> so we actually don't need to re-arm the timer after setting the
> filed.
> 
> This is also the only place that arms the timer outside the window
> push_backup_stop() waits for with synchronize_rcu(). Today it is
> harmless because write and stop are serialized by pb->ctl_rwsem,
> but it would re-arm the timer behind timer_delete_sync_try() once
> the write path is reachable without the rwsem (next patches).
> 
> https://virtuozzo.atlassian.net/browse/VSTOR-152912
> Signed-off-by: Andrey Zhadchenko <andrey.zhadchenko at virtuozzo.com>

Sashiko has reviewed this patch and found no issues. It looks great!

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