audit: use kmem_cache to manage the audit_buffer cache
authorPaul Moore <paul@paul-moore.com>
Tue, 2 May 2017 14:16:05 +0000 (10:16 -0400)
committerPaul Moore <paul@paul-moore.com>
Tue, 2 May 2017 14:16:05 +0000 (10:16 -0400)
commit8cc96382d9a7fe1746286670dd5140c3b12638ae
tree22383341416f7ddd97b0f16d259967104ce31739
parent2115bb250f260089743e26decfb5f271ba71ca37
audit: use kmem_cache to manage the audit_buffer cache

The audit subsystem implemented its own buffer cache mechanism which
is a bit silly these days when we could use the kmem_cache construct.

Some credit is due to Florian Westphal for originally proposing that
we remove the audit cache implementation in favor of simple
kmalloc()/kfree() calls, but I would rather have a dedicated slab
cache to ease debugging and future stats/performance work.

Cc: Florian Westphal <fw@strlen.de>
Reviewed-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
kernel/audit.c