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SubjectRe: [PATCH] 2.4.0 proc_fs for 2.2.18: UPDATED
Michael Rothwell wrote:
>
> Alan Cox wrote:
> >
> > > Why is 2.2.18 proc_fs.c different than both 2.2.17 and 2.4.0? Cox, would
> > > you accept a patch that makes 2.2.18 define create_proc_info_entry and
> > > related functions the same way that 2.4.0 does?
> >
> > Send me a diff and I'll be happy to
>
> Here it is, both inlined and as an attachment. It's been tested;
> compiles, boots, works. Let me know what you think.
>
> -M
>

Okay, A function got left out. Here's the newer version. :)



--- linux-2.2.18pre25-VIRGIN/include/linux/proc_fs.h Fri Dec 8 14:57:08
2000
+++ zinux/include/linux/proc_fs.h Fri Dec 8 23:21:26 2000
@@ -262,6 +262,12 @@

#define PROC_SUPER_MAGIC 0x9fa0

+typedef int (read_proc_t)(char *page, char **start, off_t off,
+ int count, int *eof, void *data);
+typedef int (write_proc_t)(struct file *file, const char *buffer,
+ unsigned long count, void *data);
+typedef int (get_info_t)(char *, char **, off_t, int, int);
+
/*
* This is not completely implemented yet. The idea is to
* create an in-memory tree (like the actual /proc filesystem
@@ -287,24 +293,17 @@
gid_t gid;
unsigned long size;
struct inode_operations * ops;
- int (*get_info)(char *, char **, off_t, int, int);
+ get_info_t *get_info;
void (*fill_inode)(struct inode *, int);
struct proc_dir_entry *next, *parent, *subdir;
void *data;
- int (*read_proc)(char *page, char **start, off_t off,
- int count, int *eof, void *data);
- int (*write_proc)(struct file *file, const char *buffer,
- unsigned long count, void *data);
+ read_proc_t *read_proc;
+ write_proc_t *write_proc;
int (*readlink_proc)(struct proc_dir_entry *de, char *page);
unsigned int count; /* use count */
int deleted; /* delete flag */
};

-typedef int (read_proc_t)(char *page, char **start, off_t off,
- int count, int *eof, void *data);
-typedef int (write_proc_t)(struct file *file, const char *buffer,
- unsigned long count, void *data);
-
extern int (* dispatch_scsi_info_ptr) (int ino, char *buffer, char
**start,
off_t offset, int length, int inout);

@@ -433,15 +432,33 @@
/*
* generic.c
*/
+extern struct proc_dir_entry *proc_symlink(const char *,
+ struct proc_dir_entry *, const char *);
+extern struct proc_dir_entry *proc_mkdir(const char *,struct
proc_dir_entry *);
+
struct proc_dir_entry *create_proc_entry(const char *name, mode_t mode,
struct proc_dir_entry *parent);
void remove_proc_entry(const char *name, struct proc_dir_entry
*parent);

-#define create_proc_info_entry(n, m, b, g) \
- { \
- struct proc_dir_entry *r = create_proc_entry(n, m, b); \
- if (r) r->get_info = g; \
+extern 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)
+{
+ struct proc_dir_entry *res=create_proc_entry(name,mode,base);
+ if (res) {
+ res->read_proc=read_proc;
+ res->data=data;
}
+ return res;
+}
+
+extern 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;
+}

/*
* proc_tty.c
@@ -470,12 +487,18 @@
return NULL;
}

-#define create_proc_info_entry(n, m, b, g) \
- { \
- struct proc_dir_entry *r = create_proc_entry(n, m, b); \
- if (r) r->get_info = g; \
- }
-
+extern 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; }
+extern 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; }
+
+extern inline struct proc_dir_entry *proc_symlink(const char *name,
+ struct proc_dir_entry *parent,char *dest) {return NULL;}
+extern inline struct proc_dir_entry *proc_mkdir(const char *name,
+ struct proc_dir_entry *parent) {return NULL;}

extern inline void remove_proc_entry(const char *name, struct
proc_dir_entry *parent) {};

@@ -485,7 +508,5 @@
extern struct proc_dir_entry proc_root;

#endif /* CONFIG_PROC_FS */
-
-#define proc_mkdir(buf, usbdir) create_proc_entry(buf, S_IFDIR, usbdir)

#endif /* _LINUX_PROC_FS_H */
diff -r -u -x CVS -x *.o linux-2.2.18pre25-VIRGIN/fs/proc/generic.c
zinux/fs/proc/generic.c
--- linux-2.2.18pre25-VIRGIN/fs/proc/generic.c Fri Dec 8 14:57:07 2000
+++ zinux/fs/proc/generic.c Fri Dec 8 17:58:34 2000
@@ -246,6 +246,65 @@
return 0;
}

+struct proc_dir_entry *proc_symlink(const char *name,
+ struct proc_dir_entry *parent, const char *dest)
+{
+ struct proc_dir_entry *ent = NULL;
+ const char *fn = name;
+ int len;
+
+ if (!parent && xlate_proc_name(name, &parent, &fn) != 0)
+ goto out;
+ len = strlen(fn);
+
+ ent = kmalloc(sizeof(struct proc_dir_entry) + len + 1, GFP_KERNEL);
+ if (!ent)
+ goto out;
+ memset(ent, 0, sizeof(struct proc_dir_entry));
+ memcpy(((char *) ent) + sizeof(*ent), fn, len + 1);
+ ent->name = ((char *) ent) + sizeof(*ent);
+ ent->namelen = len;
+ ent->nlink = 1;
+ ent->mode = S_IFLNK|S_IRUGO|S_IWUGO|S_IXUGO;
+ ent->data = kmalloc((ent->size=strlen(dest))+1, GFP_KERNEL);
+ if (!ent->data) {
+ kfree(ent);
+ goto out;
+ }
+ strcpy((char*)ent->data,dest);
+
+ proc_register(parent, ent);
+
+out:
+ return ent;
+}
+
+struct proc_dir_entry *proc_mkdir(const char *name, struct
proc_dir_entry *parent)
+{
+ struct proc_dir_entry *ent = NULL;
+ const char *fn = name;
+ int len;
+
+ if (!parent && xlate_proc_name(name, &parent, &fn) != 0)
+ goto out;
+ len = strlen(fn);
+
+ ent = kmalloc(sizeof(struct proc_dir_entry) + len + 1, GFP_KERNEL);
+ if (!ent)
+ goto out;
+ memset(ent, 0, sizeof(struct proc_dir_entry));
+ memcpy(((char *) ent) + sizeof(*ent), fn, len + 1);
+ ent->name = ((char *) ent) + sizeof(*ent);
+ ent->namelen = len;
+ ent->nlink = 2;
+ ent->mode = S_IFDIR | S_IRUGO | S_IXUGO;
+
+ proc_register(parent, ent);
+
+out:
+ return ent;
+}
+
struct proc_dir_entry *create_proc_entry(const char *name, mode_t mode,
struct proc_dir_entry *parent)
{
diff -r -u -x CVS -x *.o linux-2.2.18pre25-VIRGIN/fs/proc/openpromfs.c
zinux/fs/proc/openpromfs.c
--- linux-2.2.18pre25-VIRGIN/fs/proc/openpromfs.c Fri Dec 8 14:57:07
2000
+++ zinux/fs/proc/openpromfs.c Fri Dec 8 15:08:59 2000
@@ -1,4 +1,4 @@
-/* $Id: openpromfs.c,v 1.33 1999/04/28 11:57:33 davem Exp $
+/* $Id: openpromfs.c,v 1.1.1.1 2000/12/08 20:08:59 zapman Exp $
* openpromfs.c: /proc/openprom handling routines
*
* Copyright (C) 1996-1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
diff -r -u -x CVS -x *.o linux-2.2.18pre25-VIRGIN/fs/proc/procfs_syms.c
zinux/fs/proc/procfs_syms.c
--- linux-2.2.18pre25-VIRGIN/fs/proc/procfs_syms.c Fri Dec 8 14:57:07
2000
+++ zinux/fs/proc/procfs_syms.c Fri Dec 8 18:12:37 2000
@@ -19,6 +19,8 @@
EXPORT_SYMBOL(proc_register);
EXPORT_SYMBOL(proc_unregister);
EXPORT_SYMBOL(create_proc_entry);
+EXPORT_SYMBOL(proc_mkdir);
+EXPORT_SYMBOL(proc_symlink);
EXPORT_SYMBOL(remove_proc_entry);
EXPORT_SYMBOL(proc_root);
EXPORT_SYMBOL(proc_root_fs);--- linux-2.2.18pre25-VIRGIN/include/linux/proc_fs.h Fri Dec 8 14:57:08 2000
+++ zinux/include/linux/proc_fs.h Fri Dec 8 23:21:26 2000
@@ -262,6 +262,12 @@

#define PROC_SUPER_MAGIC 0x9fa0

+typedef int (read_proc_t)(char *page, char **start, off_t off,
+ int count, int *eof, void *data);
+typedef int (write_proc_t)(struct file *file, const char *buffer,
+ unsigned long count, void *data);
+typedef int (get_info_t)(char *, char **, off_t, int, int);
+
/*
* This is not completely implemented yet. The idea is to
* create an in-memory tree (like the actual /proc filesystem
@@ -287,24 +293,17 @@
gid_t gid;
unsigned long size;
struct inode_operations * ops;
- int (*get_info)(char *, char **, off_t, int, int);
+ get_info_t *get_info;
void (*fill_inode)(struct inode *, int);
struct proc_dir_entry *next, *parent, *subdir;
void *data;
- int (*read_proc)(char *page, char **start, off_t off,
- int count, int *eof, void *data);
- int (*write_proc)(struct file *file, const char *buffer,
- unsigned long count, void *data);
+ read_proc_t *read_proc;
+ write_proc_t *write_proc;
int (*readlink_proc)(struct proc_dir_entry *de, char *page);
unsigned int count; /* use count */
int deleted; /* delete flag */
};

-typedef int (read_proc_t)(char *page, char **start, off_t off,
- int count, int *eof, void *data);
-typedef int (write_proc_t)(struct file *file, const char *buffer,
- unsigned long count, void *data);
-
extern int (* dispatch_scsi_info_ptr) (int ino, char *buffer, char **start,
off_t offset, int length, int inout);

@@ -433,15 +432,33 @@
/*
* generic.c
*/
+extern struct proc_dir_entry *proc_symlink(const char *,
+ struct proc_dir_entry *, const char *);
+extern struct proc_dir_entry *proc_mkdir(const char *,struct proc_dir_entry *);
+
struct proc_dir_entry *create_proc_entry(const char *name, mode_t mode,
struct proc_dir_entry *parent);
void remove_proc_entry(const char *name, struct proc_dir_entry *parent);

-#define create_proc_info_entry(n, m, b, g) \
- { \
- struct proc_dir_entry *r = create_proc_entry(n, m, b); \
- if (r) r->get_info = g; \
+extern 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)
+{
+ struct proc_dir_entry *res=create_proc_entry(name,mode,base);
+ if (res) {
+ res->read_proc=read_proc;
+ res->data=data;
}
+ return res;
+}
+
+extern 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;
+}

/*
* proc_tty.c
@@ -470,12 +487,18 @@
return NULL;
}

-#define create_proc_info_entry(n, m, b, g) \
- { \
- struct proc_dir_entry *r = create_proc_entry(n, m, b); \
- if (r) r->get_info = g; \
- }
-
+extern 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; }
+extern 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; }
+
+extern inline struct proc_dir_entry *proc_symlink(const char *name,
+ struct proc_dir_entry *parent,char *dest) {return NULL;}
+extern inline struct proc_dir_entry *proc_mkdir(const char *name,
+ struct proc_dir_entry *parent) {return NULL;}

extern inline void remove_proc_entry(const char *name, struct proc_dir_entry *parent) {};

@@ -485,7 +508,5 @@
extern struct proc_dir_entry proc_root;

#endif /* CONFIG_PROC_FS */
-
-#define proc_mkdir(buf, usbdir) create_proc_entry(buf, S_IFDIR, usbdir)

#endif /* _LINUX_PROC_FS_H */
diff -r -u -x CVS -x *.o linux-2.2.18pre25-VIRGIN/fs/proc/generic.c zinux/fs/proc/generic.c
--- linux-2.2.18pre25-VIRGIN/fs/proc/generic.c Fri Dec 8 14:57:07 2000
+++ zinux/fs/proc/generic.c Fri Dec 8 17:58:34 2000
@@ -246,6 +246,65 @@
return 0;
}

+struct proc_dir_entry *proc_symlink(const char *name,
+ struct proc_dir_entry *parent, const char *dest)
+{
+ struct proc_dir_entry *ent = NULL;
+ const char *fn = name;
+ int len;
+
+ if (!parent && xlate_proc_name(name, &parent, &fn) != 0)
+ goto out;
+ len = strlen(fn);
+
+ ent = kmalloc(sizeof(struct proc_dir_entry) + len + 1, GFP_KERNEL);
+ if (!ent)
+ goto out;
+ memset(ent, 0, sizeof(struct proc_dir_entry));
+ memcpy(((char *) ent) + sizeof(*ent), fn, len + 1);
+ ent->name = ((char *) ent) + sizeof(*ent);
+ ent->namelen = len;
+ ent->nlink = 1;
+ ent->mode = S_IFLNK|S_IRUGO|S_IWUGO|S_IXUGO;
+ ent->data = kmalloc((ent->size=strlen(dest))+1, GFP_KERNEL);
+ if (!ent->data) {
+ kfree(ent);
+ goto out;
+ }
+ strcpy((char*)ent->data,dest);
+
+ proc_register(parent, ent);
+
+out:
+ return ent;
+}
+
+struct proc_dir_entry *proc_mkdir(const char *name, struct proc_dir_entry *parent)
+{
+ struct proc_dir_entry *ent = NULL;
+ const char *fn = name;
+ int len;
+
+ if (!parent && xlate_proc_name(name, &parent, &fn) != 0)
+ goto out;
+ len = strlen(fn);
+
+ ent = kmalloc(sizeof(struct proc_dir_entry) + len + 1, GFP_KERNEL);
+ if (!ent)
+ goto out;
+ memset(ent, 0, sizeof(struct proc_dir_entry));
+ memcpy(((char *) ent) + sizeof(*ent), fn, len + 1);
+ ent->name = ((char *) ent) + sizeof(*ent);
+ ent->namelen = len;
+ ent->nlink = 2;
+ ent->mode = S_IFDIR | S_IRUGO | S_IXUGO;
+
+ proc_register(parent, ent);
+
+out:
+ return ent;
+}
+
struct proc_dir_entry *create_proc_entry(const char *name, mode_t mode,
struct proc_dir_entry *parent)
{
diff -r -u -x CVS -x *.o linux-2.2.18pre25-VIRGIN/fs/proc/openpromfs.c zinux/fs/proc/openpromfs.c
--- linux-2.2.18pre25-VIRGIN/fs/proc/openpromfs.c Fri Dec 8 14:57:07 2000
+++ zinux/fs/proc/openpromfs.c Fri Dec 8 15:08:59 2000
@@ -1,4 +1,4 @@
-/* $Id: openpromfs.c,v 1.33 1999/04/28 11:57:33 davem Exp $
+/* $Id: openpromfs.c,v 1.1.1.1 2000/12/08 20:08:59 zapman Exp $
* openpromfs.c: /proc/openprom handling routines
*
* Copyright (C) 1996-1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
diff -r -u -x CVS -x *.o linux-2.2.18pre25-VIRGIN/fs/proc/procfs_syms.c zinux/fs/proc/procfs_syms.c
--- linux-2.2.18pre25-VIRGIN/fs/proc/procfs_syms.c Fri Dec 8 14:57:07 2000
+++ zinux/fs/proc/procfs_syms.c Fri Dec 8 18:12:37 2000
@@ -19,6 +19,8 @@
EXPORT_SYMBOL(proc_register);
EXPORT_SYMBOL(proc_unregister);
EXPORT_SYMBOL(create_proc_entry);
+EXPORT_SYMBOL(proc_mkdir);
+EXPORT_SYMBOL(proc_symlink);
EXPORT_SYMBOL(remove_proc_entry);
EXPORT_SYMBOL(proc_root);
EXPORT_SYMBOL(proc_root_fs);
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