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proc: Generalize proc inode allocation

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Generalize the proc inode allocation so that it can be
used without having to having to create a proc_dir_entry.

This will allow namespace file descriptors to remain light
weight entitities but still have the same inode number
when the backing namespace is the same.

Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman 2011-06-17 13:33:20 -07:00
parent 4f326c0064
commit 33d6dce607
2 changed files with 23 additions and 13 deletions
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10
include/linux/proc_fs.h
View file

@ -176,6 +176,8 @@ extern struct proc_dir_entry *proc_net_mkdir(struct net *net, const char *name,
extern struct file *proc_ns_fget(int fd);
extern bool proc_ns_inode(struct inode *inode);
extern int proc_alloc_inum(unsigned int *pino);
extern void proc_free_inum(unsigned int inum);
#else
#define proc_net_fops_create(net, name, mode, fops) ({ (void)(mode), NULL; })
@ -235,6 +237,14 @@ static inline bool proc_ns_inode(struct inode *inode)
return false;
}
static inline int proc_alloc_inum(unsigned int *inum)
{
*inum = 1;
return 0;
}
static inline void proc_free_inum(unsigned int inum)
{
}
#endif /* CONFIG_PROC_FS */
#if !defined(CONFIG_PROC_KCORE)