[rds-devel] [PATCH net v2] rds: Fix incorrect statistics counting

[David Miller]

From: Håkon Bugge <Haakon.Bugge at oracle.com>
Date: Wed,  6 Sep 2017 18:35:51 +0200

> In rds_send_xmit() there is logic to batch the sends. However, if
> another thread has acquired the lock and has incremented the send_gen,
> it is considered a race and we yield. The code incrementing the
> s_send_lock_queue_raced statistics counter did not count this event
> correctly.
> 
> This commit counts the race condition correctly.
> 
> Changes from v1:
> - Removed check for *someone_on_xmit()*
> - Fixed incorrect indentation
> 
> Signed-off-by: Håkon Bugge <haakon.bugge at oracle.com>
> Reviewed-by: Knut Omang <knut.omang at oracle.com>

Applied.