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| author | Kyeongdon Kim <kyeongdon.kim@lge.com> | 2017-09-06 12:50:19 +0300 |
|---|---|---|
| committer | Paul Moore <paul@paul-moore.com> | 2017-09-20 19:01:58 +0300 |
| commit | 7c620ece125cbab7b5dfcb574ee1e64ab8b562cd (patch) | |
| tree | 53535c964faebf8e3ced3151353c8577213a59cc /security/selinux/ss/hashtab.h | |
| parent | 2bd6bf03f4c1c59381d62c61d03f6cc3fe71f66e (diff) | |
| download | linux-7c620ece125cbab7b5dfcb574ee1e64ab8b562cd.tar.xz | |
selinux: Use kmem_cache for hashtab_node
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 <kyeongdon.kim@lge.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Diffstat (limited to 'security/selinux/ss/hashtab.h')
| -rw-r--r-- | security/selinux/ss/hashtab.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/security/selinux/ss/hashtab.h b/security/selinux/ss/hashtab.h index 009fb5e06172..d6883d3e7c5b 100644 --- a/security/selinux/ss/hashtab.h +++ b/security/selinux/ss/hashtab.h @@ -84,4 +84,8 @@ int hashtab_map(struct hashtab *h, /* Fill info with some hash table statistics */ void hashtab_stat(struct hashtab *h, struct hashtab_info *info); +/* Use kmem_cache for hashtab_node */ +void hashtab_cache_init(void); +void hashtab_cache_destroy(void); + #endif /* _SS_HASHTAB_H */ |