linux/security/selinux
Stephen Smalley 2c3c05dbcb SELinux: allow preemption between transition permission checks
In security_get_user_sids, move the transition permission checks
outside of the section holding the policy rdlock, and use the AVC to
perform the checks, calling cond_resched after each one.  These
changes should allow preemption between the individual checks and
enable caching of the results.  It may however increase the overall
time spent in the function in some cases, particularly in the cache
miss case.

The long term fix will be to take much of this logic to userspace by
exporting additional state via selinuxfs, and ultimately deprecating
and eliminating this interface from the kernel.

Tested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by:  Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>
2007-07-11 22:52:25 -04:00
..
include SELinux: allow preemption between transition permission checks 2007-07-11 22:52:25 -04:00
ss SELinux: allow preemption between transition permission checks 2007-07-11 22:52:25 -04:00
avc.c SELinux: allow preemption between transition permission checks 2007-07-11 22:52:25 -04:00
exports.c [PATCH] selinux: rename selinux_ctxid_to_string 2006-09-26 08:48:52 -07:00
hooks.c SELinux: allow preemption between transition permission checks 2007-07-11 22:52:25 -04:00
Kconfig Fix trivial typos in Kconfig* files 2007-05-09 07:12:20 +02:00
Makefile SELinux: extract the NetLabel SELinux support from the security server 2007-04-26 01:35:48 -04:00
netif.c [PATCH] SELinux: convert to kzalloc 2005-10-30 17:37:11 -08:00
netlabel.c [NetLabel]: consolidate the struct socket/sock handling to just struct sock 2007-06-08 13:33:09 -07:00
netlink.c [NETLINK]: Switch cb_lock spinlock to mutex and allow to override it 2007-04-25 22:29:03 -07:00
nlmsgtab.c [IPv6] prefix: Convert RTM_NEWPREFIX notifications to use the new netlink api 2006-12-02 21:22:45 -08:00
selinuxfs.c selinux: add selinuxfs structure for object class discovery 2007-07-11 22:52:20 -04:00
xfrm.c SELinux: peer secid consolidation for external network labeling 2006-12-02 21:24:14 -08:00