diff options
Diffstat (limited to 'kernel/include/linux/device_cgroup.h')
| -rw-r--r-- | kernel/include/linux/device_cgroup.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/kernel/include/linux/device_cgroup.h b/kernel/include/linux/device_cgroup.h new file mode 100644 index 000000000..8b64221b4 --- /dev/null +++ b/kernel/include/linux/device_cgroup.h @@ -0,0 +1,19 @@ +#include <linux/fs.h> + +#ifdef CONFIG_CGROUP_DEVICE +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; } +static inline int devcgroup_inode_mknod(int mode, dev_t dev) +{ return 0; } +#endif |