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proc: Move non-public stuff from linux/proc_fs.h to fs/proc/internal.h
Move non-public declarations and definitions from linux/proc_fs.h to fs/proc/internal.h. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
David Howells
Al Viro
parent
c30480b92c
commit
59d8053f1e
3 changed files with 233 additions and 221 deletions
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@ -1,149 +1,75 @@
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#ifndef _LINUX_PROC_FS_H
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#define _LINUX_PROC_FS_H
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#include <linux/slab.h>
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#include <linux/fs.h>
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#include <linux/spinlock.h>
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#include <linux/magic.h>
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#include <linux/atomic.h>
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#include <linux/proc_ns.h>
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struct net;
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struct completion;
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struct mm_struct;
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/*
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* The proc filesystem constants/structures
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*/
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#ifndef _LINUX_PROC_FS_H
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#define _LINUX_PROC_FS_H
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/*
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* Offset of the first process in the /proc root directory..
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*/
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#define FIRST_PROCESS_ENTRY 256
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#include <linux/types.h>
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#include <linux/fs.h>
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/* Worst case buffer size needed for holding an integer. */
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#define PROC_NUMBUF 13
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/*
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* This is not completely implemented yet. The idea is to
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* create an in-memory tree (like the actual /proc filesystem
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* tree) of these proc_dir_entries, so that we can dynamically
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* add new files to /proc.
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*
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* The "next" pointer creates a linked list of one /proc directory,
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* while parent/subdir create the directory structure (every
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* /proc file has a parent, but "subdir" is NULL for all
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* non-directory entries).
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*/
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struct proc_dir_entry {
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unsigned int low_ino;
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umode_t mode;
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nlink_t nlink;
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kuid_t uid;
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kgid_t gid;
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loff_t size;
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const struct inode_operations *proc_iops;
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const struct file_operations *proc_fops;
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struct proc_dir_entry *next, *parent, *subdir;
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void *data;
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atomic_t count; /* use count */
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atomic_t in_use; /* number of callers into module in progress; */
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/* negative -> it's going away RSN */
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struct completion *pde_unload_completion;
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struct list_head pde_openers; /* who did ->open, but not ->release */
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spinlock_t pde_unload_lock; /* proc_fops checks and pde_users bumps */
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u8 namelen;
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char name[];
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};
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struct proc_dir_entry;
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#ifdef CONFIG_PROC_FS
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extern void proc_root_init(void);
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void proc_flush_task(struct task_struct *task);
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struct proc_dir_entry *proc_create_data(const char *name, umode_t mode,
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struct proc_dir_entry *parent,
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const struct file_operations *proc_fops,
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void *data);
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extern void proc_remove(struct proc_dir_entry *);
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extern void remove_proc_entry(const char *name, struct proc_dir_entry *parent);
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extern int remove_proc_subtree(const char *name, struct proc_dir_entry *parent);
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extern void proc_flush_task(struct task_struct *);
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extern struct proc_dir_entry *proc_symlink(const char *,
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struct proc_dir_entry *, const char *);
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extern struct proc_dir_entry *proc_mkdir(const char *,struct proc_dir_entry *);
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extern struct proc_dir_entry *proc_mkdir(const char *, struct proc_dir_entry *);
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extern struct proc_dir_entry *proc_mkdir_data(const char *, umode_t,
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struct proc_dir_entry *, void *);
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extern struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode,
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struct proc_dir_entry *parent);
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extern struct proc_dir_entry *proc_mkdir_mode(const char *, umode_t,
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struct proc_dir_entry *);
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extern struct proc_dir_entry *proc_create_data(const char *, umode_t,
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struct proc_dir_entry *,
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const struct file_operations *,
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void *);
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static inline struct proc_dir_entry *proc_create(const char *name, umode_t mode,
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struct proc_dir_entry *parent, const struct file_operations *proc_fops)
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static inline struct proc_dir_entry *proc_create(
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const char *name, umode_t mode, struct proc_dir_entry *parent,
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const struct file_operations *proc_fops)
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{
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return proc_create_data(name, mode, parent, proc_fops, NULL);
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}
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extern void proc_set_size(struct proc_dir_entry *, loff_t);
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extern void proc_set_user(struct proc_dir_entry *, kuid_t, kgid_t);
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extern void *PDE_DATA(const struct inode *);
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extern void *proc_get_parent_data(const struct inode *);
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#else
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extern void proc_remove(struct proc_dir_entry *);
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extern void remove_proc_entry(const char *, struct proc_dir_entry *);
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extern int remove_proc_subtree(const char *, struct proc_dir_entry *);
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#else /* CONFIG_PROC_FS */
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static inline void proc_flush_task(struct task_struct *task)
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{
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}
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#define proc_create(name, mode, parent, fops) ({ (void)(mode), NULL; })
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static inline struct proc_dir_entry *proc_create_data(const char *name,
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umode_t mode, struct proc_dir_entry *parent,
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const struct file_operations *proc_fops, void *data)
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{
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return NULL;
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}
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static inline void proc_remove(struct proc_dir_entry *de) {}
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#define remove_proc_entry(name, parent) do {} while (0)
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#define remove_proc_subtree(name, parent) do {} while (0)
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static inline struct proc_dir_entry *proc_symlink(const char *name,
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struct proc_dir_entry *parent,const char *dest) {return NULL;}
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struct proc_dir_entry *parent,const char *dest) { return NULL;}
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static inline struct proc_dir_entry *proc_mkdir(const char *name,
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struct proc_dir_entry *parent) {return NULL;}
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static inline struct proc_dir_entry *proc_mkdir_data(const char *name,
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umode_t mode, struct proc_dir_entry *parent, void *data) { return NULL; }
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static inline struct proc_dir_entry *proc_mkdir_mode(const char *name,
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umode_t mode, struct proc_dir_entry *parent) { return NULL; }
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#define proc_create(name, mode, parent, proc_fops) ({NULL;})
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#define proc_create_data(name, mode, parent, proc_fops, data) ({NULL;})
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static inline void proc_set_size(struct proc_dir_entry *de, loff_t size) {}
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static inline void proc_set_user(struct proc_dir_entry *de, kuid_t uid, kgid_t gid) {}
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static inline void *PDE_DATA(const struct inode *inode) {BUG(); return NULL;}
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static inline void *proc_get_parent_data(const struct inode *inode) { BUG(); return NULL; }
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static inline void proc_remove(struct proc_dir_entry *de) {}
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#define remove_proc_entry(name, parent) do {} while (0)
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static inline int remove_proc_subtree(const char *name, struct proc_dir_entry *parent) { return 0; }
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#endif /* CONFIG_PROC_FS */
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union proc_op {
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int (*proc_get_link)(struct dentry *, struct path *);
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int (*proc_read)(struct task_struct *task, char *page);
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int (*proc_show)(struct seq_file *m,
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struct pid_namespace *ns, struct pid *pid,
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struct task_struct *task);
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};
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struct ctl_table_header;
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struct ctl_table;
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struct proc_inode {
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struct pid *pid;
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int fd;
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union proc_op op;
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struct proc_dir_entry *pde;
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struct ctl_table_header *sysctl;
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struct ctl_table *sysctl_entry;
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struct proc_ns ns;
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struct inode vfs_inode;
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};
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static inline struct proc_dir_entry *proc_net_mkdir(
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struct net *net, const char *name, struct proc_dir_entry *parent)
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{
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