ACK: [SRU][F:linux-bluefield][PATCH 0/2] reduce memory bloat and aging active ct conns

[Tim Gardner]

Acked-by: Tim Gardner <tim.gardner at canonical.com>

On 4/11/21 5:45 AM, Roi Dayan wrote:
> BugLink: https://bugs.launchpad.net/bugs/1922678
> 
> 
> SRU Justification:
> 
> The patches are fixing a possible memory hog and aging active ct conns.
> 
> * Explain the bug(s)
> 
> Memory bloat and aging active ct conns can happen from any stress test
> as we have a single workqueue for handling the ct offload conns
> for add/del/stats actions.
> 
> * brief explanation of fixes
> 
> The fix is splitting add/del/stats for diff workqueue and also
> we set a limit for add work entries.
> 
> The first patch is already upstream.
> 
> * How to test
> 
> Testing was done with just stress traffic with lots of conns different 5-tuple.
> 
> * What it could break.
> 
> Can take a lot of memory for a long time and also causing active conns to
> age out when not necessary.
> 
> 
> Oz Shlomo (1):
>    netfilter: flowtable: separate replace, destroy and stats to different
>      workqueues
> 
> Roi Dayan (1):
>    UBUNTU: SAUCE: netfilter: nf_flow_table_offload: Limit work entries on
>      offload add wq
> 
>   net/netfilter/nf_flow_table_offload.c | 56 +++++++++++++++++++++++----
>   1 file changed, 48 insertions(+), 8 deletions(-)
> 

-- 
-----------
Tim Gardner
Canonical, Inc