#include <linux/magic.h>
#include <asm/atomic.h>
+struct net;
+struct completion;
+
/*
* The proc filesystem constants/structures
*/
gid_t gid;
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;
get_info_t *get_info;
struct module *owner;
write_proc_t *write_proc;
atomic_t count; /* use count */
int deleted; /* delete flag */
- void *set;
+ 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 kcore_list {
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;
char *task_mem(struct mm_struct *, char *);
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);
extern void remove_proc_entry(const char *name, struct proc_dir_entry *parent);
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, const 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_create(struct net *net,
+ const char *name, mode_t mode, get_info_t *get_info);
+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);
#else
#define proc_root_driver NULL
-#define proc_net NULL
#define proc_bus NULL
-#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) {}
+#define proc_net_fops_create(net, name, mode, fops) ({ (void)(mode), NULL; })
+#define proc_net_create(net, name, mode, info) ({ (void)(mode), NULL; })
+static inline void proc_net_remove(struct net *net, const char *name) {}
static inline void proc_flush_task(struct task_struct *task) { }
return PROC_I(inode)->pde;
}
+static inline struct net *PDE_NET(struct proc_dir_entry *pde)
+{
+ return pde->parent->data;
+}
+
+struct net *get_proc_net(const struct inode *inode);
+
struct proc_maps_private {
struct pid *pid;
struct task_struct *task;