Dmitry Kasatkin a10bf26b2f ima: replace iint spinblock with rwlock/read_lock ... For performance, replace the iint spinlock with rwlock/read_lock. Eric Paris questioned this change, from spinlocks to rwlocks, saying "rwlocks have been shown to actually be slower on multi processor systems in a number of cases due to the cache line bouncing required." Based on performance measurements compiling the kernel on a cold boot with multiple jobs with/without this patch, Dmitry Kasatkin and I found that rwlocks performed better than spinlocks, but very insignificantly. For example with total compilation time around 6 minutes, with rwlocks time was 1 - 3 seconds shorter... but always like that. Changelog v2: - new patch taken from the 'allocating iint improvements' patch Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com> Signed-off-by: Mimi Zohar <zohar@us.ibm.com>		2012-09-07 14:57:46 -04:00
..
apparmor	split ->file_mmap() into ->mmap_addr()/->mmap_file()	2012-05-31 13:11:54 -04:00
integrity	ima: replace iint spinblock with rwlock/read_lock	2012-09-07 14:57:46 -04:00
keys	tpm: Move tpm_get_random api into the TPM device driver	2012-08-22 11:11:33 -05:00
selinux	selinux: tag avc cache alloc as non-critical	2012-07-31 18:42:47 -07:00
smack	smack: off by one error	2012-07-30 15:04:17 +10:00
tomoyo	Merge branch 'master' of git://git.infradead.org/users/eparis/selinux into next	2012-05-22 11:21:06 +10:00
yama	Yama: handle 32-bit userspace prctl	2012-09-08 01:06:14 +10:00
capability.c	split ->file_mmap() into ->mmap_addr()/->mmap_file()	2012-05-31 13:11:54 -04:00
commoncap.c	split ->file_mmap() into ->mmap_addr()/->mmap_file()	2012-05-31 13:11:54 -04:00
device_cgroup.c	cgroup: convert all non-memcg controllers to the new cftype interface	2012-04-01 12:09:55 -07:00
inode.c	securityfs: fix object creation races	2012-01-10 10:20:35 -05:00
Kconfig	KEYS: Move the key config into security/keys/Kconfig	2012-05-11 10:56:56 +01:00
lsm_audit.c	LSM: BUILD_BUG_ON if the common_audit_data union ever grows	2012-04-09 12:23:03 -04:00
Makefile	security: Yama LSM	2012-02-10 09:18:52 +11:00
min_addr.c	mmap_min_addr check CAP_SYS_RAWIO only for write	2010-04-23 08:56:31 +10:00
security.c	security: allow Yama to be unconditionally stacked	2012-09-05 14:12:31 -07:00