Dmitry Kasatkin 2c50b96482 ima: remove unnecessary i_mutex locking from ima_rdwr_violation_check() ...

Before 2.6.39 inode->i_readcount was maintained by IMA. It was not atomic
and protected using spinlock. For 2.6.39, i_readcount was converted to
atomic and maintaining was moved VFS layer. Spinlock for some unclear
reason was replaced by i_mutex.

After analyzing the code, we came to conclusion that i_mutex locking is
unnecessary, especially when an IMA policy has not been defined.

This patch removes i_mutex locking from ima_rdwr_violation_check().

Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>

2014-07-17 09:35:09 -04:00

..

apparmor

nick kvfree() from apparmor

2014-05-06 14:02:53 -04:00

integrity

ima: remove unnecessary i_mutex locking from ima_rdwr_violation_check()

2014-07-17 09:35:09 -04:00

keys

Merge branch 'serge-next-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sergeh/linux-security

2014-06-10 10:05:36 -07:00

selinux

Merge branch 'stable-3.16' of git://git.infradead.org/users/pcmoore/selinux into next

2014-07-17 03:05:51 +10:00

smack

Merge branch 'smack-for-3.16' of git://git.gitorious.org/smack-next/kernel into next

2014-05-20 14:50:09 +10:00

tomoyo

get rid of pointless checks for NULL ->i_op

2014-04-01 23:19:16 -04:00

yama

yama: Better permission check for ptraceme

2013-03-26 13:17:58 -07:00

capability.c

Merge tag 'keys-20140314' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs into next

2014-04-14 11:42:49 +10:00

commoncap.c

capabilities: allow nice if we are privileged

2013-08-30 23:44:09 -07:00

device_cgroup.c

device_cgroup: use css_has_online_children() instead of has_children()

2014-05-16 13:22:52 -04:00

inode.c

securityfs: fix object creation races

2012-01-10 10:20:35 -05:00

Kconfig

security: select correct default LSM_MMAP_MIN_ADDR on arm on arm64

2014-02-05 14:59:14 +00:00

lsm_audit.c

audit: anchor all pid references in the initial pid namespace

2014-03-20 10:11:55 -04:00

Makefile

security: cleanup Makefiles to use standard syntax for specifying sub-directories

2014-02-17 11:08:04 +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

Merge branch 'serge-next-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sergeh/linux-security

2014-06-10 10:05:36 -07:00