kybaaz/linux-xiaomi-chiron
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

devcgroup_inode_permission: take "is it a device node" checks to inlined wrapper

Browse source 
inode_permission() calls devcgroup_inode_permission() and almost all such
calls are _not_ for device nodes; let's at least keep the common path
straight...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2011-06-19 13:01:04 -04:00
parent 8e833fd2e1
commit 482e0cd3db
2 changed files with 10 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

10
include/linux/device_cgroup.h
View file

@ -2,8 +2,16 @@
#include <linux/fs.h>
#ifdef CONFIG_CGROUP_DEVICE
extern int devcgroup_inode_permission(struct inode *inode, int mask);
extern int __devcgroup_inode_permission(struct inode *inode, int mask);
extern int devcgroup_inode_mknod(int mode, dev_t dev);
static inline int devcgroup_inode_permission(struct inode *inode, int mask)
{
if (likely(!inode->i_rdev))
return 0;
if (!S_ISBLK(inode->i_mode) && !S_ISCHR(inode->i_mode))
return 0;
return __devcgroup_inode_permission(inode, mask);
}
#else
static inline int devcgroup_inode_permission(struct inode *inode, int mask)
{ return 0; }