#ifndef __PARAMS_TREE_H__
#define __PARAMS_TREE_H__
-#include <libcfs/libcfs.h>
+#include <linux/fs.h>
+#include <linux/proc_fs.h>
+#include <linux/rwsem.h>
+#include <linux/spinlock.h>
-#undef LPROCFS
-#if (defined(__KERNEL__) && defined(CONFIG_PROC_FS))
-# define LPROCFS
-#endif
-
-#ifdef LPROCFS
-typedef struct inode cfs_inode_t;
-typedef struct file_operations cfs_param_file_ops_t;
-typedef struct proc_dir_entry cfs_param_dentry_t;
-typedef struct poll_table_struct cfs_poll_table_t;
-#define CFS_PARAM_MODULE THIS_MODULE
-#define cfs_file_private(file) (file->private_data)
-
-#ifndef HAVE_ONLY_PROCFS_SEQ
+#ifdef CONFIG_PROC_FS
+# ifndef HAVE_ONLY_PROCFS_SEQ
/* in lprocfs_stat.c, to protect the private data for proc entries */
extern struct rw_semaphore _lprocfs_lock;
-static inline
-int LPROCFS_ENTRY_CHECK(struct proc_dir_entry *dp)
+static inline int LPROCFS_ENTRY_CHECK(struct inode *inode)
{
+ struct proc_dir_entry *dp = PDE(inode);
int deleted = 0;
spin_lock(&(dp)->pde_unload_lock);
return -ENODEV;
return 0;
}
-#define LPROCFS_SRCH_ENTRY() \
-do { \
- down_read(&_lprocfs_lock); \
-} while(0)
-#define LPROCFS_SRCH_EXIT() \
-do { \
- up_read(&_lprocfs_lock); \
-} while(0)
+# define LPROCFS_SRCH_ENTRY() \
+ do { \
+ down_read(&_lprocfs_lock); \
+ } while (0)
-#define LPROCFS_WRITE_ENTRY() \
-do { \
- down_write(&_lprocfs_lock); \
-} while(0)
+# define LPROCFS_SRCH_EXIT() \
+ do { \
+ up_read(&_lprocfs_lock); \
+ } while (0)
-#define LPROCFS_WRITE_EXIT() \
-do { \
- up_write(&_lprocfs_lock); \
-} while(0)
+# define LPROCFS_WRITE_ENTRY() \
+ do { \
+ down_write(&_lprocfs_lock); \
+ } while (0)
-#define PDE_DATA(inode) PDE(inode)->data
+# define LPROCFS_WRITE_EXIT() \
+ do { \
+ up_write(&_lprocfs_lock); \
+ } while (0)
-#else /* New proc api */
+# define PDE_DATA(inode) (PDE(inode)->data)
-static inline cfs_param_dentry_t* PDE(struct inode *inode)
-{
- return NULL;
-}
+# else /* HAVE_ONLY_PROCFS_SEQ */
-static inline
-int LPROCFS_ENTRY_CHECK(cfs_param_dentry_t *dp)
+static inline int LPROCFS_ENTRY_CHECK(struct inode *inode)
{
return 0;
}
#define LPROCFS_WRITE_ENTRY() do {} while(0)
#define LPROCFS_WRITE_EXIT() do {} while(0)
-#endif
-
-#else /* !LPROCFS */
-
-struct file {
- void *param_private;
- loff_t param_pos;
- unsigned int param_flags;
-};
-
-typedef struct cfs_param_inode {
- void *param_private;
-} cfs_inode_t;
-
-typedef struct cfs_param_dentry {
- void *param_data;
-} cfs_param_dentry_t;
-
-typedef struct cfs_proc_inode {
- cfs_param_dentry_t *param_pde;
- cfs_inode_t param_inode;
-} cfs_proc_inode_t;
-
-struct seq_operations;
-struct seq_file {
- char *buf;
- size_t size;
- size_t from;
- size_t count;
- loff_t index;
- loff_t version;
- struct mutex lock;
- const struct seq_operations *op;
- void *private;
-};
-
-struct seq_operations {
- void *(*start) (struct seq_file *m, loff_t *pos);
- void (*stop) (struct seq_file *m, void *v);
- void *(*next) (struct seq_file *m, void *v, loff_t *pos);
- int (*show) (struct seq_file *m, void *v);
-};
-
-typedef void *cfs_poll_table_t;
-
-typedef struct cfs_param_file_ops {
- struct module *owner;
- int (*open) (cfs_inode_t *, struct file *);
- loff_t (*llseek)(struct file *, loff_t, int);
- int (*release) (cfs_inode_t *, struct file *);
- unsigned int (*poll) (struct file *, cfs_poll_table_t *);
- ssize_t (*write) (struct file *, const char *, size_t, loff_t *);
- ssize_t (*read)(struct file *, char *, size_t, loff_t *);
-} cfs_param_file_ops_t;
-typedef cfs_param_file_ops_t *cfs_lproc_filep_t;
-
-#define CFS_PARAM_MODULE NULL
-#define seq_lseek NULL
-
-static inline int seq_read(char *buf, size_t count, loff_t *ppos)
-{
- return 0;
-}
-
-static inline int
-seq_open(struct file *file, const struct seq_operations *fops)
-{
- struct seq_file *p = file->param_private;
-
- if (p == NULL) {
- LIBCFS_ALLOC(p, sizeof(*p));
- if (p == NULL)
- return -ENOMEM;
- file->param_private = p;
- } else {
- memset(p, 0, sizeof(*p));
- }
- p->op = fops;
- return 0;
-}
-
-static inline cfs_proc_inode_t *FAKE_PROC_I(const cfs_inode_t *inode)
-{
- return container_of(inode, cfs_proc_inode_t, param_inode);
-}
-
-static inline cfs_param_dentry_t *PDE(cfs_inode_t *inode)
-{
- return FAKE_PROC_I(inode)->param_pde;
-}
-
-static inline
-int LPROCFS_ENTRY_CHECK(cfs_param_dentry_t *dp)
-{
- return 0;
-}
-#define LPROCFS_WRITE_ENTRY() do {} while(0)
-#define LPROCFS_WRITE_EXIT() do {} while(0)
-
-int seq_printf(struct seq_file *, const char *, ...)
- __attribute__ ((format (printf,2,3)));
-
-#endif /* LPROCFS */
-
-/* XXX: params_tree APIs */
-
+# endif /* !HAVE_ONLY_PROCFS_SEQ */
+#endif /* CONFIG_PROC_FS */
#endif /* __PARAMS_TREE_H__ */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff