diff options
| author | Tejun Heo <[email protected]> | 2015-12-07 22:38:51 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2015-12-09 03:02:33 +0000 |
| commit | 297dbde19cf6a0ccb6fd4396c6220a5912ed61e8 (patch) | |
| tree | d1b65de60b8d8adfd2f84542cd59d9ed61f12c6b /net/core/scm.c | |
| parent | Merge branch 'for-4.5-ancestor-test' of git://git.kernel.org/pub/scm/linux/ke... (diff) | |
| download | kernel-297dbde19cf6a0ccb6fd4396c6220a5912ed61e8.tar.gz kernel-297dbde19cf6a0ccb6fd4396c6220a5912ed61e8.zip | |
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 <[email protected]>
Acked-by: Daniel Wagner <[email protected]>
Cc: Daniel Borkmann <[email protected]>
CC: Neil Horman <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'net/core/scm.c')
0 files changed, 0 insertions, 0 deletions