memcg: ipv6/sit: account and don't WARN on ip_tunnel_prl structs allocation

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Author: Andrey Ryabinin <aryabinin@virtuozzo.com>

The size of the ip_tunnel_prl structs allocation is controllable from
user-space, thus it's better to avoid spam in dmesg if allocation failed.
Also add __GFP_ACCOUNT as this is a good candidate for per-memcg
accounting. Allocation is temporary and limited by 4GB.

Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Vasily Averin 2021-07-19 13:44:50 +03:00 • committed by David S. Miller

parent a89893dd7b

commit 1b51d82719

1 changed files with 3 additions and 2 deletions

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net/ipv6/sit.c

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