[PATCH] selinux: Use kmem_cache for hashtab_node

On Thu, Sep 7, 2017 at 7:18 PM, Paul Moore [off-list ref] wrote:

On Wed, Sep 6, 2017 at 5:50 AM, Kyeongdon Kim [off-list ref] wrote:

quoted

During random test as own device to check slub account,
we found some slack memory from hashtab_node(kmalloc-64).
By using kzalloc(), middle of test result like below:
allocated size 240768
request size 45144
slack size 195624
allocation count 3762

So, we want to use kmem_cache_zalloc() and that
can reduce memory size 52byte(slack size/alloc count) per each struct.

Signed-off-by: Kyeongdon Kim <redacted>
---
 security/selinux/ss/hashtab.c  | 17 +++++++++++++++--
 security/selinux/ss/hashtab.h  |  4 ++++
 security/selinux/ss/services.c |  4 ++++
 3 files changed, 23 insertions(+), 2 deletions(-)

This seems reasonale, but I'm going to refrain from merging this until
after the merge window closes.

I just merged this into selinux/next, thanks for your patience.

-- 
paul moore
www.paul-moore.com
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