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authorStephen Smalley <sds@tycho.nsa.gov>2015-03-24 16:54:18 -0400
committerPaul Moore <pmoore@redhat.com>2015-04-06 20:16:23 -0400
commitcf7b6c0205f11cdb015384244c0b423b00e35c69 (patch)
tree90b5a4d156b9a70d3437cb057a11928465795e4a /security
parent33ebc1932a07efd8728975750409741940334489 (diff)
downloadlinux-cf7b6c0205f11cdb015384244c0b423b00e35c69.tar.bz2
selinux: increase avtab max buckets
Now that we can safely increase the avtab max buckets without triggering high order allocations and have a hash function that will make better use of the larger number of buckets, increase the max buckets to 2^16. Original: 101421 entries and 2048/2048 buckets used, longest chain length 374 With new hash function: 101421 entries and 2048/2048 buckets used, longest chain length 81 With increased max buckets: 101421 entries and 31078/32768 buckets used, longest chain length 12 Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: Paul Moore <pmoore@redhat.com>
Diffstat (limited to 'security')
-rw-r--r--security/selinux/ss/avtab.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/security/selinux/ss/avtab.h b/security/selinux/ss/avtab.h
index 6d794a2eee57..adb451cd44f9 100644
--- a/security/selinux/ss/avtab.h
+++ b/security/selinux/ss/avtab.h
@@ -86,7 +86,7 @@ struct avtab_node *avtab_search_node_next(struct avtab_node *node, int specified
void avtab_cache_init(void);
void avtab_cache_destroy(void);
-#define MAX_AVTAB_HASH_BITS 11
+#define MAX_AVTAB_HASH_BITS 16
#define MAX_AVTAB_HASH_BUCKETS (1 << MAX_AVTAB_HASH_BITS)
#endif /* _SS_AVTAB_H_ */