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| author | Takashi Iwai <tiwai@suse.de> | 2011-08-08 14:30:29 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2011-08-08 14:30:29 +0200 |
| commit | 0a2d31b62dba9b5b92a38c67c9cc42630513662a (patch) | |
| tree | f755d74ec85248de645e10c45ed1a2ed467530f6 /include/linux/device_cgroup.h | |
| parent | 8039290a91c5dc4414093c086987a5d7738fe2fd (diff) | |
| parent | df944f66784e6d4f2f50739263a4947885d8b6ae (diff) | |
Merge branch 'fix/kconfig' into for-linus
Diffstat (limited to 'include/linux/device_cgroup.h')
| -rw-r--r-- | include/linux/device_cgroup.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/include/linux/device_cgroup.h b/include/linux/device_cgroup.h index 0b0d9c39ed67..7aad1f440867 100644 --- a/include/linux/device_cgroup.h +++ b/include/linux/device_cgroup.h @@ -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; } |