diff options
author | Tejun Heo <tj@kernel.org> | 2015-12-07 17:38:51 -0500 |
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committer | Michael Bestas <mkbestas@lineageos.org> | 2022-04-19 00:50:47 +0300 |
commit | 401836253c769cf55d4a17c7e276064e720de39b (patch) | |
tree | 49da3805940cc3f7d98c2d1ee8c549e32b69777d /net/core/scm.c | |
parent | 55b3b34cb39e6b0d8e1893660d15484b36396b5e (diff) |
netprio_cgroup: limit the maximum css->id to USHRT_MAX
netprio builds per-netdev contiguous priomap array which is indexed by
css->id. The array is allocated using kzalloc() effectively limiting
the maximum ID supported to some thousand range. This patch caps the
maximum supported css->id to USHRT_MAX which should be way above what
is actually useable.
This allows reducing sock->sk_cgrp_prioidx to u16 from u32. The freed
up part will be used to overload the cgroup related fields.
sock->sk_cgrp_prioidx's position is swapped with sk_mark so that the
two cgroup related fields are adjacent.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Daniel Wagner <daniel.wagner@bmw-carit.de>
Cc: Daniel Borkmann <daniel@iogearbox.net>
CC: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
Diffstat (limited to 'net/core/scm.c')
0 files changed, 0 insertions, 0 deletions