devcgroup: fix odd behaviour when writing 'a' to devices.allow
commitd823f6bfec2844493c05961133895de21fa0e02d
authorLi Zefan <lizf@cn.fujitsu.com>
Fri, 4 Jul 2008 17:00:07 +0000 (4 10:00 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 4 Jul 2008 17:40:10 +0000 (4 10:40 -0700)
tree853fac4a97ab842f9ee52adfbf72297e8b90688d
parent26ff8c697a2c8f6974c2357d3f01cca91b20c964
devcgroup: fix odd behaviour when writing 'a' to devices.allow

 # cat /devcg/devices.list
 a *:* rwm
 # echo a > devices.allow
 # cat /devcg/devices.list
 a *:* rwm
 a 0:0 rwm

This is odd and maybe confusing.  With this patch, writing 'a' to
devices.allow will add 'a *:* rwm' to the whitelist.

Also a few fixes and updates to the document.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: Serge E. Hallyn <serue@us.ibm.com>
Cc: Paul Menage <menage@google.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: James Morris <jmorris@namei.org>
Cc: Chris Wright <chrisw@sous-sol.org>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Documentation/controllers/devices.txt
security/device_cgroup.c