selinux: avoid unnecessary avc cache stat hit count

There is no point in counting hits - we can calculate it from the number
of lookups and misses.

This makes the avc statistics a bit smaller, and makes the code
generation better too.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 7 insertions, 3 deletions

diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index ea39cb742ae..c0e1a0f5246 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -1380,10 +1380,14 @@ static int sel_avc_stats_seq_show(struct seq_file *seq, void *v)
         if (v == SEQ_START_TOKEN)
                 seq_printf(seq, "lookups hits misses allocations reclaims "
                            "frees\n");
-        else
-                seq_printf(seq, "%u %u %u %u %u %u\n", st->lookups,
-                           st->hits, st->misses, st->allocations,
+        else {
+                unsigned int lookups = st->lookups;
+                unsigned int misses = st->misses;
+                unsigned int hits = lookups - misses;
+                seq_printf(seq, "%u %u %u %u %u %u\n", lookups,
+                           hits, misses, st->allocations,
                            st->reclaims, st->frees);
+        }
         return 0;
 }