#ifndef _LINUX_PROC_FS_H
#define _LINUX_PROC_FS_H
-#include <linux/config.h>
#include <linux/slab.h>
#include <linux/fs.h>
+#include <linux/spinlock.h>
+#include <linux/magic.h>
#include <asm/atomic.h>
+struct net;
+struct completion;
+struct mm_struct;
+
/*
* The proc filesystem constants/structures
*/
*/
#define FIRST_PROCESS_ENTRY 256
+/* Worst case buffer size needed for holding an integer. */
+#define PROC_NUMBUF 13
/*
* We always define these enumerators
PROC_ROOT_INO = 1,
};
-#define PROC_SUPER_MAGIC 0x9fa0
-
/*
* This is not completely implemented yet. The idea is to
* create an in-memory tree (like the actual /proc filesystem
* /proc file has a parent, but "subdir" is NULL for all
* non-directory entries).
*
- * "get_info" is called at "read", while "owner" is used to protect module
+ * "owner" is used to protect module
* from unloading while proc_dir_entry is in use
*/
int count, int *eof, void *data);
typedef int (write_proc_t)(struct file *file, const char __user *buffer,
unsigned long count, void *data);
-typedef int (get_info_t)(char *, char **, off_t, int);
struct proc_dir_entry {
unsigned int low_ino;
nlink_t nlink;
uid_t uid;
gid_t gid;
- unsigned long size;
- struct inode_operations * proc_iops;
- struct file_operations * proc_fops;
- get_info_t *get_info;
+ loff_t size;
+ const struct inode_operations *proc_iops;
+ /*
+ * NULL ->proc_fops means "PDE is going away RSN" or
+ * "PDE is just created". In either case, e.g. ->read_proc won't be
+ * called because it's too late or too early, respectively.
+ *
+ * If you're allocating ->proc_fops dynamically, save a pointer
+ * somewhere.
+ */
+ const struct file_operations *proc_fops;
struct module *owner;
struct proc_dir_entry *next, *parent, *subdir;
void *data;
read_proc_t *read_proc;
write_proc_t *write_proc;
atomic_t count; /* use count */
- int deleted; /* delete flag */
+ int pde_users; /* number of callers into module in progress */
+ spinlock_t pde_unload_lock; /* proc_fops checks and pde_users bumps */
+ struct completion *pde_unload_completion;
+ struct list_head pde_openers; /* who did ->open, but not ->release */
};
struct kcore_list {
size_t size;
};
+struct vmcore {
+ struct list_head list;
+ unsigned long long paddr;
+ unsigned long long size;
+ loff_t offset;
+};
+
#ifdef CONFIG_PROC_FS
-extern struct proc_dir_entry proc_root;
-extern struct proc_dir_entry *proc_root_fs;
-extern struct proc_dir_entry *proc_net;
-extern struct proc_dir_entry *proc_net_stat;
-extern struct proc_dir_entry *proc_bus;
-extern struct proc_dir_entry *proc_root_driver;
-extern struct proc_dir_entry *proc_root_kcore;
+extern spinlock_t proc_subdir_lock;
extern void proc_root_init(void);
-extern void proc_misc_init(void);
-
-struct mm_struct;
+void proc_flush_task(struct task_struct *task);
struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, struct nameidata *);
-struct dentry *proc_pid_unhash(struct task_struct *p);
-void proc_pid_flush(struct dentry *proc_dentry);
int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir);
unsigned long task_vsize(struct mm_struct *);
int task_statm(struct mm_struct *, int *, int *, int *, int *);
-char *task_mem(struct mm_struct *, char *);
+void task_mem(struct seq_file *, struct mm_struct *);
+void clear_refs_smap(struct mm_struct *mm);
+
+struct proc_dir_entry *de_get(struct proc_dir_entry *de);
+void de_put(struct proc_dir_entry *de);
extern struct proc_dir_entry *create_proc_entry(const char *name, mode_t mode,
struct proc_dir_entry *parent);
+struct proc_dir_entry *proc_create_data(const char *name, mode_t mode,
+ struct proc_dir_entry *parent,
+ const struct file_operations *proc_fops,
+ void *data);
extern void remove_proc_entry(const char *name, struct proc_dir_entry *parent);
extern struct vfsmount *proc_mnt;
-extern int proc_fill_super(struct super_block *,void *,int);
+struct pid_namespace;
+extern int proc_fill_super(struct super_block *);
extern struct inode *proc_get_inode(struct super_block *, unsigned int, struct proc_dir_entry *);
-extern int proc_match(int, const char *,struct proc_dir_entry *);
-
/*
* These are generic /proc routines that use the internal
* "struct proc_dir_entry" tree to traverse the filesystem.
extern int proc_readdir(struct file *, void *, filldir_t);
extern struct dentry *proc_lookup(struct inode *, struct dentry *, struct nameidata *);
-extern struct file_operations proc_kcore_operations;
-extern struct file_operations proc_kmsg_operations;
-extern struct file_operations ppc_htab_operations;
+extern int pid_ns_prepare_proc(struct pid_namespace *ns);
+extern void pid_ns_release_proc(struct pid_namespace *ns);
/*
* proc_tty.c
/*
* proc_devtree.c
*/
+#ifdef CONFIG_PROC_DEVICETREE
struct device_node;
+struct property;
extern void proc_device_tree_init(void);
-#ifdef CONFIG_PROC_DEVICETREE
extern void proc_device_tree_add_node(struct device_node *, struct proc_dir_entry *);
-#else /* !CONFIG_PROC_DEVICETREE */
-static inline void proc_device_tree_add_node(struct device_node *np, struct proc_dir_entry *pde)
-{
- return;
-}
+extern void proc_device_tree_add_prop(struct proc_dir_entry *pde, struct property *prop);
+extern void proc_device_tree_remove_prop(struct proc_dir_entry *pde,
+ struct property *prop);
+extern void proc_device_tree_update_prop(struct proc_dir_entry *pde,
+ struct property *newprop,
+ struct property *oldprop);
#endif /* CONFIG_PROC_DEVICETREE */
extern struct proc_dir_entry *proc_symlink(const char *,
extern struct proc_dir_entry *proc_mkdir_mode(const char *name, mode_t mode,
struct proc_dir_entry *parent);
+static inline struct proc_dir_entry *proc_create(const char *name, mode_t mode,
+ struct proc_dir_entry *parent, const struct file_operations *proc_fops)
+{
+ return proc_create_data(name, mode, parent, proc_fops, NULL);
+}
+
static inline struct proc_dir_entry *create_proc_read_entry(const char *name,
mode_t mode, struct proc_dir_entry *base,
read_proc_t *read_proc, void * data)
return res;
}
-static inline struct proc_dir_entry *create_proc_info_entry(const char *name,
- mode_t mode, struct proc_dir_entry *base, get_info_t *get_info)
-{
- struct proc_dir_entry *res=create_proc_entry(name,mode,base);
- if (res) res->get_info=get_info;
- return res;
-}
-
-static inline struct proc_dir_entry *proc_net_create(const char *name,
- mode_t mode, get_info_t *get_info)
-{
- return create_proc_info_entry(name,mode,proc_net,get_info);
-}
-
-static inline struct proc_dir_entry *proc_net_fops_create(const char *name,
- mode_t mode, struct file_operations *fops)
-{
- struct proc_dir_entry *res = create_proc_entry(name, mode, proc_net);
- if (res)
- res->proc_fops = fops;
- return res;
-}
-
-static inline void proc_net_remove(const char *name)
-{
- remove_proc_entry(name,proc_net);
-}
+extern struct proc_dir_entry *proc_net_fops_create(struct net *net,
+ const char *name, mode_t mode, const struct file_operations *fops);
+extern void proc_net_remove(struct net *net, const char *name);
+extern struct proc_dir_entry *proc_net_mkdir(struct net *net, const char *name,
+ struct proc_dir_entry *parent);
+
+/* While the {get|set|dup}_mm_exe_file functions are for mm_structs, they are
+ * only needed to implement /proc/<pid>|self/exe so we define them here. */
+extern void set_mm_exe_file(struct mm_struct *mm, struct file *new_exe_file);
+extern struct file *get_mm_exe_file(struct mm_struct *mm);
+extern void dup_mm_exe_file(struct mm_struct *oldmm, struct mm_struct *newmm);
#else
-#define proc_root_driver NULL
-#define proc_net NULL
-#define proc_bus NULL
+#define proc_net_fops_create(net, name, mode, fops) ({ (void)(mode), NULL; })
+static inline void proc_net_remove(struct net *net, const char *name) {}
-#define proc_net_fops_create(name, mode, fops) ({ (void)(mode), NULL; })
-#define proc_net_create(name, mode, info) ({ (void)(mode), NULL; })
-static inline void proc_net_remove(const char *name) {}
-
-static inline struct dentry *proc_pid_unhash(struct task_struct *p) { return NULL; }
-static inline void proc_pid_flush(struct dentry *proc_dentry) { }
+static inline void proc_flush_task(struct task_struct *task)
+{
+}
static inline struct proc_dir_entry *create_proc_entry(const char *name,
mode_t mode, struct proc_dir_entry *parent) { return NULL; }
-
+static inline struct proc_dir_entry *proc_create(const char *name,
+ mode_t mode, struct proc_dir_entry *parent,
+ const struct file_operations *proc_fops)
+{
+ return NULL;
+}
+static inline struct proc_dir_entry *proc_create_data(const char *name,
+ mode_t mode, struct proc_dir_entry *parent,
+ const struct file_operations *proc_fops, void *data)
+{
+ return NULL;
+}
#define remove_proc_entry(name, parent) do {} while (0)
static inline struct proc_dir_entry *proc_symlink(const char *name,
static inline struct proc_dir_entry *create_proc_read_entry(const char *name,
mode_t mode, struct proc_dir_entry *base,
read_proc_t *read_proc, void * data) { return NULL; }
-static inline struct proc_dir_entry *create_proc_info_entry(const char *name,
- mode_t mode, struct proc_dir_entry *base, get_info_t *get_info)
- { return NULL; }
struct tty_driver;
static inline void proc_tty_register_driver(struct tty_driver *driver) {};
static inline void proc_tty_unregister_driver(struct tty_driver *driver) {};
-extern struct proc_dir_entry proc_root;
+static inline int pid_ns_prepare_proc(struct pid_namespace *ns)
+{
+ return 0;
+}
+
+static inline void pid_ns_release_proc(struct pid_namespace *ns)
+{
+}
+
+static inline void set_mm_exe_file(struct mm_struct *mm,
+ struct file *new_exe_file)
+{}
+
+static inline struct file *get_mm_exe_file(struct mm_struct *mm)
+{
+ return NULL;
+}
+
+static inline void dup_mm_exe_file(struct mm_struct *oldmm,
+ struct mm_struct *newmm)
+{}
#endif /* CONFIG_PROC_FS */
extern void kclist_add(struct kcore_list *, void *, size_t);
#endif
+union proc_op {
+ int (*proc_get_link)(struct inode *, struct path *);
+ int (*proc_read)(struct task_struct *task, char *page);
+ int (*proc_show)(struct seq_file *m,
+ struct pid_namespace *ns, struct pid *pid,
+ struct task_struct *task);
+};
+
+struct ctl_table_header;
+struct ctl_table;
+
struct proc_inode {
- struct task_struct *task;
- int type;
- union {
- int (*proc_get_link)(struct inode *, struct dentry **, struct vfsmount **);
- int (*proc_read)(struct task_struct *task, char *page);
- } op;
+ struct pid *pid;
+ int fd;
+ union proc_op op;
struct proc_dir_entry *pde;
+ struct ctl_table_header *sysctl;
+ struct ctl_table *sysctl_entry;
struct inode vfs_inode;
};
return PROC_I(inode)->pde;
}
+static inline struct net *PDE_NET(struct proc_dir_entry *pde)
+{
+ return pde->parent->data;
+}
+
+struct proc_maps_private {
+ struct pid *pid;
+ struct task_struct *task;
+#ifdef CONFIG_MMU
+ struct vm_area_struct *tail_vma;
+#endif
+};
+
#endif /* _LINUX_PROC_FS_H */
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