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