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45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
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#ifndef __BACKPORT_SEQ_FILE_H
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#define __BACKPORT_SEQ_FILE_H
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#include_next <linux/seq_file.h>
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#include <linux/version.h>
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#if LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0)
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#include <linux/user_namespace.h>
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#include <linux/file.h>
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#include <linux/fs.h>
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#ifdef CONFIG_USER_NS
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#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,38)
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static inline struct user_namespace *seq_user_ns(struct seq_file *seq)
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{
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struct file *f = container_of((void *) seq, struct file, private_data);
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return f->f_cred->user_ns;
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}
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#else
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static inline struct user_namespace *seq_user_ns(struct seq_file *seq)
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{
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return current_user_ns();
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}
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#endif /* (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,38)) */
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#else
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static inline struct user_namespace *seq_user_ns(struct seq_file *seq)
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{
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extern struct user_namespace init_user_ns;
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return &init_user_ns;
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}
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#endif /* CONFIG_USER_NS */
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#endif /* < 3.7 */
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#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,34)
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#define seq_hlist_start_head LINUX_BACKPORT(seq_hlist_start_head)
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extern struct hlist_node *seq_hlist_start_head(struct hlist_head *head,
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loff_t pos);
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#define seq_hlist_next LINUX_BACKPORT(seq_hlist_next)
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extern struct hlist_node *seq_hlist_next(void *v, struct hlist_head *head,
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loff_t *ppos);
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#endif
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#endif /* __BACKPORT_SEQ_FILE_H */
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