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authorEric Paris <eparis@redhat.com>2012-04-03 09:37:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-04-03 09:48:40 -0700
commit3b3b0e4fc15efa507b902d90cea39e496a523c3b (patch)
treed7b91c21ad6c6f4ac21dd51297b74eec47c61684 /security/apparmor/lib.c
parent95694129b43165911dc4e8a972f0d39ad98d86be (diff)
downloadlinux-3b3b0e4fc15efa507b902d90cea39e496a523c3b.tar.bz2
LSM: shrink sizeof LSM specific portion of common_audit_data
Linus found that the gigantic size of the common audit data caused a big perf hit on something as simple as running stat() in a loop. This patch requires LSMs to declare the LSM specific portion separately rather than doing it in a union. Thus each LSM can be responsible for shrinking their portion and don't have to pay a penalty just because other LSMs have a bigger space requirement. Signed-off-by: Eric Paris <eparis@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'security/apparmor/lib.c')
-rw-r--r--security/apparmor/lib.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/security/apparmor/lib.c b/security/apparmor/lib.c
index 9516948041ad..e75829ba0ff9 100644
--- a/security/apparmor/lib.c
+++ b/security/apparmor/lib.c
@@ -65,8 +65,10 @@ void aa_info_message(const char *str)
{
if (audit_enabled) {
struct common_audit_data sa;
+ struct apparmor_audit_data aad = {0,};
COMMON_AUDIT_DATA_INIT(&sa, NONE);
- sa.aad.info = str;
+ sa.aad = &aad;
+ aad.info = str;
aa_audit_msg(AUDIT_APPARMOR_STATUS, &sa, NULL);
}
printk(KERN_INFO "AppArmor: %s\n", str);