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authorEric Paris <eparis@redhat.com>2009-02-12 14:50:54 -0500
committerJames Morris <jmorris@namei.org>2009-02-14 09:23:08 +1100
commitf1c6381a6e337adcecf84be2a838bd9e610e2365 (patch)
treea6e0857db27a38b0976fb422836f9443241b4b61 /security/selinux/ss
parent21193dcd1f3570ddfd8a04f4465e484c1f94252f (diff)
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SELinux: remove unused av.decided field
It appears there was an intention to have the security server only decide certain permissions and leave other for later as some sort of a portential performance win. We are currently always deciding all 32 bits of permissions and this is a useless couple of branches and wasted space. This patch completely drops the av.decided concept. This in a 17% reduction in the time spent in avc_has_perm_noaudit based on oprofile sampling of a tbench benchmark. Signed-off-by: Eric Paris <eparis@redhat.com> Reviewed-by: Paul Moore <paul.moore@hp.com> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/selinux/ss')
-rw-r--r--security/selinux/ss/services.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index c65e4fe4a0f..deeec6c013a 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -407,7 +407,6 @@ static int context_struct_compute_av(struct context *scontext,
* Initialize the access vectors to the default values.
*/
avd->allowed = 0;
- avd->decided = 0xffffffff;
avd->auditallow = 0;
avd->auditdeny = 0xffffffff;
avd->seqno = latest_granting;
@@ -743,7 +742,6 @@ int security_compute_av(u32 ssid,
if (!ss_initialized) {
avd->allowed = 0xffffffff;
- avd->decided = 0xffffffff;
avd->auditallow = 0;
avd->auditdeny = 0xffffffff;
avd->seqno = latest_granting;