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authorGravatar Eric Andersen <andersen@codepoet.org>2002-12-05 07:24:08 +0000
committerGravatar Eric Andersen <andersen@codepoet.org>2002-12-05 07:24:08 +0000
commitdeca106b6dad70ad0a1312a82d762aa8d8ad52ba (patch)
treef11db23c430298ac9da2f3de80ec6c86cc75be70 /examples
parent6f9b45b9eff22c664b93ace82d20669340a762f8 (diff)
downloadbusybox-deca106b6dad70ad0a1312a82d762aa8d8ad52ba.tar.gz
busybox-deca106b6dad70ad0a1312a82d762aa8d8ad52ba.tar.bz2
Kill CONFIG_FEATURE_USE_DEVPS_PATCH and the devps patch. I'm not
maintaining it anymore, and it is now terribly out of date. -Erik
Diffstat (limited to 'examples')
-rw-r--r--examples/kernel-patches/Will_devps_GoIntoTheKernel104
-rw-r--r--examples/kernel-patches/devps.patch.9_25_20001478
2 files changed, 0 insertions, 1582 deletions
diff --git a/examples/kernel-patches/Will_devps_GoIntoTheKernel b/examples/kernel-patches/Will_devps_GoIntoTheKernel
deleted file mode 100644
index c541c0f8c..000000000
--- a/examples/kernel-patches/Will_devps_GoIntoTheKernel
+++ /dev/null
@@ -1,104 +0,0 @@
-I have been asked several times whether the devps patch will go into the
-mainline Linux kernel. The following emails from Alan Cox and Linus Torvalds
-make it clear that it is not going to happen. This does not mean this patch
-had no value -- it does. It just means that those that like it get to apply it
-themselves...
-
- -Erik
-
-
--------------------------------
-
-From alan@lxorguk.ukuu.org.uk Thu Apr 13 08:07:22 2000
-Return-Path: <alan@lxorguk.ukuu.org.uk>
-Delivered-To: andersen@dillweed.dsl.xmission.com
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- id 12fhQ9-0002nD-00
- for andersen@xmission.com; Thu, 13 Apr 2000 12:04:25 +0100
-Subject: Re: kernel ps drivers [Was: vm locking question]
-To: andersen@xmission.com
-Date: Thu, 13 Apr 2000 12:04:23 +0100 (BST)
-In-Reply-To: <20000412224130.A2748@xmission.com> from "Erik Andersen" at Apr 12, 2000 10:41:30 PM
-X-Mailer: ELM [version 2.5 PL1]
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-Message-Id: <E12fhQ9-0002nD-00@the-village.bc.nu>
-From: Alan Cox <alan@lxorguk.ukuu.org.uk>
-Status: RO
-X-Status: A
-Content-Length: 242
-Lines: 6
-
-> On the subject of ps, would you be willing to accept my /dev/ps
-> patch into the kernel? If no, any suggestions on what should
-> be done differently (if anything) to make it worthy of inclusion?
-
-For 2.2.x no, for 2.3.x ask Linus not me
-
-
-From torvalds@transmeta.com Thu Apr 13 09:18:16 2000
-Return-Path: <torvalds@transmeta.com>
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-Date: Thu, 13 Apr 2000 08:13:53 -0700 (PDT)
-From: Linus Torvalds <torvalds@transmeta.com>
-To: Erik Andersen <andersen@xmission.com>
-Cc: Alan Cox <alan@redhat.com>
-Subject: Re: kernel ps drivers [Was: vm locking question]
-In-Reply-To: <20000413083127.A976@xmission.com>
-Message-ID: <Pine.LNX.4.10.10004130812170.2000-100000@penguin.transmeta.com>
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-
-
-
-On Thu, 13 Apr 2000, Erik Andersen wrote:
->
-> For 2.3.x would you be willing to accept my /dev/ps driver into the kernel?
-> (Assuming I remove the /dev/modules driver (since it was pointed out that there
-> is a perfectly good syscall providing that interface). If no, is there anything
-> that could be done differently (if anything) to make it worthy of inclusion?
-
-I do dislike /dev/ps mightily. If the problem is that /proc is too large,
-then the right solution is to just clean up /proc. Which is getting done.
-And yes, /proc will be larger than /dev/ps, but I still find that
-preferable to having two incompatible ways to do the same thing.
-
- Linus
-
-
diff --git a/examples/kernel-patches/devps.patch.9_25_2000 b/examples/kernel-patches/devps.patch.9_25_2000
deleted file mode 100644
index 086205cf2..000000000
--- a/examples/kernel-patches/devps.patch.9_25_2000
+++ /dev/null
@@ -1,1478 +0,0 @@
-diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/drivers/char/Config.in linux/drivers/char/Config.in
---- linux-2.2.18-9.virgin/drivers/char/Config.in Mon Sep 18 15:02:30 2000
-+++ linux/drivers/char/Config.in Mon Sep 25 16:33:16 2000
-@@ -56,6 +56,8 @@
- dep_tristate 'Microgate SyncLink card support' CONFIG_SYNCLINK m
- dep_tristate 'HDLC line discipline support' CONFIG_N_HDLC m
- fi
-+tristate 'Devps support' CONFIG_DEVPS
-+tristate 'Devmounts support' CONFIG_DEVMTAB
- bool 'Unix98 PTY support' CONFIG_UNIX98_PTYS
- if [ "$CONFIG_UNIX98_PTYS" = "y" ]; then
- int 'Maximum number of Unix98 PTYs in use (0-2048)' CONFIG_UNIX98_PTY_COUNT 256
-diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/drivers/char/Makefile linux/drivers/char/Makefile
---- linux-2.2.18-9.virgin/drivers/char/Makefile Mon Sep 18 15:02:30 2000
-+++ linux/drivers/char/Makefile Mon Sep 25 18:01:12 2000
-@@ -697,6 +697,22 @@
- M_OBJS += $(sort $(filter $(module-list), $(obj-m)))
-
-
-+ifeq ($(CONFIG_DEVPS),y)
-+O_OBJS += devps.o
-+else
-+ ifeq ($(CONFIG_DEVPS),m)
-+ M_OBJS += devps.o
-+ endif
-+endif
-+
-+ifeq ($(CONFIG_DEVMTAB),y)
-+O_OBJS += devmtab.o
-+else
-+ ifeq ($(CONFIG_DEVMTAB),m)
-+ M_OBJS += devmtab.o
-+ endif
-+endif
-+
- include $(TOPDIR)/Rules.make
-
- fastdep:
-diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/drivers/char/devmtab.c linux/drivers/char/devmtab.c
---- linux-2.2.18-9.virgin/drivers/char/devmtab.c Wed Dec 31 17:00:00 1969
-+++ linux/drivers/char/devmtab.c Mon Sep 25 17:00:57 2000
-@@ -0,0 +1,295 @@
-+/* vi: set sw=8 ts=8: */
-+/*
-+ * linux/drivers/char/devmtab.c
-+ *
-+ * Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org>
-+ *
-+ * May be copied or modified under the terms of the GNU General Public License.
-+ * See linux/COPYING for more information.
-+ *
-+ * This driver implements an interface whereby programs such as mount(8),
-+ * umount(8), and df(1) may obtain all the process information they need to do
-+ * their jobs without needing to use /proc. This driver another step in my
-+ * evil plan to completely dismantle /proc. Muhahahaha!
-+ *
-+ * Suggestions are welcome. Patches that work are more welcome though. ;-)
-+ *
-+ *
-+ * When using this driver, running:
-+ * mknod /dev/mtab c 10 22
-+ * could be considered helpful.
-+ *
-+ * ----------------------------------
-+ * 1.00 Mar 07, 2000 -- Initial version.
-+ *
-+ *************************************************************************/
-+
-+#define DEVMTAB_VERSION "1.00"
-+
-+#include <linux/config.h>
-+#include <linux/module.h>
-+#include <linux/types.h>
-+#include <linux/sched.h>
-+#include <linux/fs.h>
-+#include <linux/mm.h>
-+#include <linux/pagemap.h>
-+#include <linux/malloc.h>
-+#include <linux/miscdevice.h>
-+#include <linux/devmtab.h>
-+#include <linux/wrapper.h>
-+#include <asm/pgtable.h>
-+#include <asm/uaccess.h>
-+
-+
-+/* Some variables used by this device */
-+static struct wait_queue *devmtab_waitq = NULL;
-+static int devmtab_already_opened = 0;
-+static char *mtabfile = NULL;
-+static int mtab_ptr;
-+static int mtab_size;
-+
-+
-+
-+/****************************************************************************
-+ * Handle opening and closing of the device
-+ */
-+
-+static long long
-+devmtab_lseek (struct file *file, long long offset, int orig)
-+{
-+ return -ESPIPE;
-+}
-+
-+static ssize_t
-+devmtab_read (struct file *file, char *buf, size_t count, loff_t * ppos)
-+{
-+ int n = mtab_size - mtab_ptr;
-+
-+ if (mtab_size == 0) {
-+ /* Make some space */
-+ if (!(mtabfile = (char *) get_free_page (GFP_KERNEL)))
-+ return -ENOMEM;
-+ /* Grab the mtab */
-+ get_filesystem_info (mtabfile);
-+ mtab_ptr = 0;
-+ mtab_size = strlen (mtabfile);
-+ n = mtab_size - mtab_ptr;
-+ }
-+
-+ if (n > count)
-+ n = count;
-+ if (n <= 0)
-+ return 0;
-+
-+ if (copy_to_user (buf, mtabfile, n))
-+ return -EFAULT;
-+ mtab_ptr += n;
-+ return n;
-+}
-+
-+static int devmtab_open (struct inode *ip, struct file *fp)
-+{
-+ /* Only let one process use us at any time -- putting other
-+ * processes to sleep. Those opening us O_NONBLOCK will
-+ * get an EAGAIN error */
-+ if ((fp->f_flags & O_NONBLOCK) && devmtab_already_opened)
-+ return -EAGAIN;
-+
-+ MOD_INC_USE_COUNT;
-+
-+ while (devmtab_already_opened) {
-+ int i, got_signal=0;
-+
-+ /* Go to sleep until we get woken up
-+ * by devmtab_close or we receive a signal */
-+ module_interruptible_sleep_on(&devmtab_waitq);
-+
-+ for(i=0; i<_NSIG_WORDS && !got_signal; i++)
-+ got_signal = current->signal.sig[i] & ~current->blocked.sig[i];
-+
-+ /* If we got a signal, decrement the use count
-+ * and return to user space */
-+ if (got_signal) {
-+ MOD_DEC_USE_COUNT;
-+ return -EINTR;
-+ }
-+ }
-+
-+ /* Since we got here, then devmtab_already_opened must equal 0 */
-+ devmtab_already_opened=1;
-+ mtab_ptr = 0;
-+ mtab_size = 0;
-+
-+ return 0;
-+}
-+
-+static int devmtab_release (struct inode *ip, struct file *fp)
-+{
-+ /* Clean up */
-+ if (mtabfile != NULL) {
-+ free_page ((unsigned long) mtabfile);
-+ mtabfile = NULL;
-+ }
-+
-+ /* Zero out the reference counter */
-+ devmtab_already_opened=0;
-+
-+ /* Wake up anybody that is waiting to access this device */
-+ module_wake_up(&devmtab_waitq);
-+
-+ MOD_DEC_USE_COUNT;
-+
-+ return 0;
-+}
-+
-+static int
-+devmtab_ioctl (struct inode *ip, struct file *fp,
-+ unsigned int cmd, unsigned long arg)
-+{
-+ switch (cmd) {
-+ case DEVMTAB_COUNT_FILESYSTEMS:{
-+ return(count_kfstypes());
-+ }
-+
-+ case DEVMTAB_GET_FILESYSTEMS:{
-+ int stat, count;
-+ struct k_fstype* fstypelist;
-+
-+ /* How many are there? */
-+ count = count_kfstypes();
-+
-+ /* Make some space */
-+ fstypelist = (struct k_fstype *)kmalloc(sizeof(struct k_fstype) * count, GFP_KERNEL);
-+ if (!fstypelist)
-+ return -ENOMEM;
-+ memset(fstypelist, 0, sizeof(struct k_fstype) * count);
-+
-+ /* Grab the mtab entries */
-+ get_kfstype_list(count, fstypelist);
-+
-+ /* Make sure there is enough room */
-+ stat = verify_area (VERIFY_WRITE, (struct k_fstype *) arg,
-+ sizeof(struct k_fstype) * count);
-+ if (stat) {
-+ printk (KERN_INFO
-+ "devmtab: Insufficient space was provided.\n");
-+ return stat;
-+ }
-+
-+ /* Send it to user space */
-+ copy_to_user_ret ((struct k_fstype *) arg, fstypelist,
-+ sizeof(struct k_fstype) * count,
-+ -EFAULT);
-+
-+ /* Clean up */
-+ kfree( fstypelist);
-+ return 0;
-+ }
-+
-+ case DEVMTAB_COUNT_MOUNTS:{
-+ return(count_mounted_filesystems());
-+ }
-+
-+ case DEVMTAB_GET_MOUNTS:{
-+ int stat, count;
-+ struct k_mntent* mntentlist;
-+
-+ /* How many are there? */
-+ count = count_mounted_filesystems();
-+
-+ /* Make some space */
-+ mntentlist = (struct k_mntent *)kmalloc(sizeof(struct k_mntent) * count, GFP_KERNEL);
-+ if (!mntentlist)
-+ return -ENOMEM;
-+ memset(mntentlist, 0, sizeof(struct k_mntent) * count);
-+
-+ /* Grab the mtab entries */
-+ get_mtab_entries (count, mntentlist);
-+
-+ /* Make sure there is enough room */
-+ stat = verify_area (VERIFY_WRITE, (void*) arg,
-+ sizeof(struct k_mntent) * count);
-+ if (stat) {
-+ printk (KERN_INFO
-+ "devmtab: Insufficient space was provided.\n");
-+ return stat;
-+ }
-+
-+ /* Send it to user space */
-+ copy_to_user_ret ((struct k_mntent *) arg, mntentlist,
-+ sizeof(struct k_mntent) * count,
-+ -EFAULT);
-+
-+ /* Clean up */
-+ kfree( mntentlist);
-+ return 0;
-+ }
-+
-+ default:
-+ return -EINVAL;
-+
-+ }
-+ return 0;
-+}
-+
-+
-+
-+/****************************************************************************
-+ * Set up the file operations devmtab will support
-+ */
-+static struct file_operations devmtab_fops = {
-+ devmtab_lseek,
-+ devmtab_read,
-+ NULL, /* No write */
-+ NULL, /* No readdir */
-+ NULL, /* No poll */
-+ devmtab_ioctl,
-+ NULL, /* No mmap */
-+ devmtab_open,
-+ NULL, /* flush */
-+ devmtab_release,
-+ NULL, /* fsync */
-+ NULL, /* fasync */
-+ NULL, /* check_media_change */
-+ NULL /* revalidate */
-+};
-+
-+static struct miscdevice devmtab_misc_dev = {
-+ DEVMTAB_MINOR,
-+ "devmtab",
-+ &devmtab_fops
-+};
-+
-+/* The real driver initialization function */
-+extern int devmtab_init (void)
-+{
-+ printk (KERN_INFO "devmtab: driver %s loaded\n", DEVMTAB_VERSION);
-+
-+ if (misc_register (&devmtab_misc_dev)) {
-+ printk ("devmtab: can't register misc device %d\n",
-+ DEVMTAB_MINOR);
-+ return -EIO;
-+ }
-+
-+ return 0;
-+}
-+
-+#ifdef MODULE
-+
-+MODULE_AUTHOR ("Erik Andersen <andersee@debian.org>");
-+MODULE_DESCRIPTION
-+ ("devmtab driver -- exports filesystem and mount information to user space");
-+
-+/* Stub driver initialization function */
-+int init_module (void)
-+{
-+ return (devmtab_init ());
-+}
-+
-+void cleanup_module (void)
-+{
-+ printk (KERN_INFO "devmtab: driver unloaded\n");
-+ misc_deregister (&devmtab_misc_dev);
-+}
-+
-+#endif /* MODULE */
-diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/drivers/char/devps.c linux/drivers/char/devps.c
---- linux-2.2.18-9.virgin/drivers/char/devps.c Wed Dec 31 17:00:00 1969
-+++ linux/drivers/char/devps.c Mon Sep 25 17:00:57 2000
-@@ -0,0 +1,518 @@
-+/* vi: set sw=8 ts=8: */
-+/*
-+ * linux/drivers/char/devps.c
-+ *
-+ * Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org>
-+ *
-+ * May be copied or modified under the terms of the GNU General Public License.
-+ * See linux/COPYING for more information.
-+ *
-+ * This driver implements an interface whereby programs such as ps(1), top(1),
-+ * killall(1) and the like may obtain all the process information they need to
-+ * do their jobs. Now you may ask, "Why not use /proc? BSD uses /proc.".
-+ * Thanks for asking. /proc is designed as a virtual filesystem. As such it
-+ * presents all of its information in a nice, human readable format. But not
-+ * human readable enough that mere mortals can actually look at the /proc
-+ * information and know what is happening on their computer (which is why we
-+ * have nice programs like ps(1) to help us out. Additionally, for ps (using
-+ * /proc) to do its job, it has to do something like:
-+ *
-+ * dir = opendir("/proc");
-+ * while ((entry = readdir(dir)) != NULL) {
-+ * if (!isdigit(*entry->d_name))
-+ * continue;
-+ * open_lots_of files();
-+ * parse_lots_of_strings();
-+ * close_lots_of_files();
-+ * print_stuff();
-+ * }
-+ *
-+ *
-+ * This is bad, because:
-+ *
-+ * 1) opening and closing lots of files is slow,
-+ *
-+ * 2) parsing lots of strings is slow,
-+ *
-+ * 3) every one of those strings had to be carefully printed out and formatted
-+ * by the kernel, which is slow,
-+ *
-+ * 4) using a virtual filesystem is not the traditional UN*X solution to
-+ * getting information from the kernel out to userspace (ioctls and syscalls
-+ * are the established way to do this), and worst of all
-+ *
-+ * 5) having a virtual filesystem around has been so inviting that everyone has
-+ * put their own weird little files into it, causing /proc to become a
-+ * cluttered rubbish heap of 64 flavors of strange that takes a ridiculous
-+ * amount of memory.
-+ *
-+ * This driver is the first step in my evil plan to completely
-+ * dismantle /proc. Muhahahaha!
-+ *
-+ * Suggestions are welcome. Patches that work are more welcome though. ;-)
-+ *
-+ * When using this driver, running:
-+ * mknod /dev/ps c 10 21
-+ * could be considered helpful.
-+ *
-+ * ----------------------------------
-+ * 1.00 Mar 07, 2000 -- Initial version.
-+ *
-+ *
-+ * TODO
-+ * ----------------------------------
-+ *
-+ * * Right now none of the vm or fd info is being returned to user space.
-+ * * There is probably other stuff that should be exported to user space.
-+ *
-+ *
-+ *************************************************************************/
-+
-+#define DEVPS_VERSION "1.00"
-+
-+#include <linux/config.h>
-+#include <linux/module.h>
-+#include <linux/types.h>
-+#include <linux/sched.h>
-+#include <linux/fs.h>
-+#include <linux/mm.h>
-+#include <linux/pagemap.h>
-+#include <linux/malloc.h>
-+#include <linux/miscdevice.h>
-+#include <linux/devps.h>
-+#include <linux/wrapper.h>
-+#include <asm/pgtable.h>
-+#include <asm/uaccess.h>
-+
-+/* Some variables used by this device */
-+static struct wait_queue *devps_waitq = NULL;
-+static int devps_already_opened = 0;
-+
-+/****************************************************************************
-+ * Handle opening and closing of the device
-+ */
-+
-+static int devps_open (struct inode *ip, struct file *fp)
-+{
-+ /* Only let one process use us at any time -- putting other
-+ * processes to sleep. Those opening us O_NONBLOCK will
-+ * get an EAGAIN error */
-+ if ((fp->f_flags & O_NONBLOCK) && devps_already_opened)
-+ return -EAGAIN;
-+
-+ MOD_INC_USE_COUNT;
-+
-+ while (devps_already_opened) {
-+ int i, got_signal=0;
-+
-+ /* Go to sleep until we get woken up
-+ * by devps_close or we receive a signal */
-+ module_interruptible_sleep_on(&devps_waitq);
-+
-+ for(i=0; i<_NSIG_WORDS && !got_signal; i++)
-+ got_signal = current->signal.sig[i] & ~current->blocked.sig[i];
-+
-+ /* If we got a signal, decrement the use count
-+ * and return to user space */
-+ if (got_signal) {
-+ MOD_DEC_USE_COUNT;
-+ return -EINTR;
-+ }
-+ }
-+
-+ /* Since we got here, then device_already_opened must equal 0 */
-+ devps_already_opened=1;
-+ return 0;
-+}
-+
-+static int devps_release (struct inode *ip, struct file *fp)
-+{
-+ /* Zero out the reference counter */
-+ devps_already_opened=0;
-+
-+ /* Wake up anybody that is waiting to access this device */
-+ module_wake_up(&devps_waitq);
-+
-+ MOD_DEC_USE_COUNT;
-+ return 0;
-+}
-+
-+
-+/*
-+ * This pretty-prints the pathname of a dentry,
-+ * clarifying sockets etc.
-+ */
-+static int
-+get_name_from_dentry (struct dentry *dentry, char *buffer, int buflen)
-+{
-+ struct inode *inode;
-+ char *tmp = (char *) __get_free_page (GFP_KERNEL), *path, *pattern;
-+ int len;
-+
-+ if (tmp == NULL)
-+ return -ENOMEM;
-+
-+ /* Check for special dentries.. */
-+ pattern = NULL;
-+ inode = dentry->d_inode;
-+ if (inode && dentry->d_parent == dentry) {
-+ if (S_ISSOCK (inode->i_mode))
-+ pattern = "socket:[%lu]";
-+ if (S_ISFIFO (inode->i_mode))
-+ pattern = "pipe:[%lu]";
-+ }
-+
-+ if (pattern) {
-+ len = sprintf (tmp, pattern, inode->i_ino);
-+ path = tmp;
-+ } else {
-+ path = d_path (dentry, tmp, PAGE_SIZE);
-+ len = tmp + PAGE_SIZE - 1 - path;
-+ }
-+
-+ if (len < buflen)
-+ buflen = len;
-+ dput (dentry);
-+ strncpy (buffer, path, buflen);
-+ free_page ((unsigned long) tmp);
-+ return buflen;
-+}
-+
-+static unsigned long get_phys_addr (struct task_struct *p,
-+ unsigned long ptr)
-+{
-+ pgd_t *page_dir;
-+ pmd_t *page_middle;
-+ pte_t pte;
-+
-+ if (!p || !p->mm || ptr >= TASK_SIZE)
-+ return 0;
-+ /* Check for NULL pgd .. shouldn't happen! */
-+ if (!p->mm->pgd) {
-+ printk ("get_phys_addr: pid %d has NULL pgd!\n", p->pid);
-+ return 0;
-+ }
-+
-+ page_dir = pgd_offset (p->mm, ptr);
-+ if (pgd_none (*page_dir))
-+ return 0;
-+ if (pgd_bad (*page_dir)) {
-+ printk ("bad page directory entry %08lx\n",
-+ pgd_val (*page_dir));
-+ pgd_clear (page_dir);
-+ return 0;
-+ }
-+ page_middle = pmd_offset (page_dir, ptr);
-+ if (pmd_none (*page_middle))
-+ return 0;
-+ if (pmd_bad (*page_middle)) {
-+ printk ("bad page middle entry %08lx\n",
-+ pmd_val (*page_middle));
-+ pmd_clear (page_middle);
-+ return 0;
-+ }
-+ pte = *pte_offset (page_middle, ptr);
-+ if (!pte_present (pte))
-+ return 0;
-+ return pte_page (pte) + (ptr & ~PAGE_MASK);
-+}
-+
-+static int get_array (struct task_struct *p, unsigned long start,
-+ unsigned long end, char *buffer)
-+{
-+ unsigned long addr;
-+ int size = 0, result = 0;
-+ char c;
-+
-+ if (start >= end)
-+ return result;
-+ for (;;) {
-+ addr = get_phys_addr (p, start);
-+ if (!addr)
-+ return result;
-+ do {
-+ c = *(char *) addr;
-+ if (!c)
-+ result = size;
-+ if (size < PAGE_SIZE)
-+ buffer[size++] = c;
-+ else
-+ return result;
-+ addr++;
-+ start++;
-+ if (!c && start >= end)
-+ return result;
-+ } while (addr & ~PAGE_MASK);
-+ }
-+ return result;
-+}
-+
-+static int
-+devps_ioctl (struct inode *ip, struct file *fp,
-+ unsigned int cmd, unsigned long arg)
-+{
-+ switch (cmd) {
-+
-+ /* Count up the total number of processes,
-+ * and then return that total */
-+ case DEVPS_GET_NUM_PIDS:{
-+ struct task_struct *p;
-+ pid_t num_pids = 0;
-+
-+ read_lock (&tasklist_lock);
-+ for_each_task (p) {
-+ if (!p->pid)
-+ continue;
-+ num_pids++;
-+ }
-+ read_unlock (&tasklist_lock);
-+
-+ copy_to_user_ret ((pid_t *) arg, &num_pids,
-+ sizeof (num_pids), -EFAULT);
-+ return 0;
-+ }
-+
-+ /* Returns an array containing all current pids, where
-+ pidlist[0]=number of PIDs in the array. pidlist[0] also
-+ specifies the size of the array for the kernel to
-+ fill... */
-+ case DEVPS_GET_PID_LIST:{
-+ struct task_struct *p;
-+ pid_t *pid_array = NULL;
-+ pid_t num_pids;
-+ int stat;
-+
-+ /* Grab the first element to see how many * entries
-+ they want us to fill */
-+ stat = verify_area (VERIFY_READ, (char *) arg,
-+ sizeof (pid_t));
-+ if (stat) {
-+ printk (KERN_INFO
-+ "devps: can't tell how many "
-+ "to pid's to write.\n");
-+ return stat;
-+ }
-+
-+ copy_from_user (&num_pids, (void *) arg,
-+ sizeof (num_pids));
-+
-+ /* Now make sure we can write the specified amount
-+ of stuff into the array. If we can't we might
-+ as well quit now and save ourselves the bother. */
-+ stat = verify_area (VERIFY_WRITE, (char *) arg,
-+ sizeof (pid_t) * num_pids);
-+ if (stat) {
-+ printk (KERN_INFO
-+ "devps: Insufficient space was "
-+ "provided to write %d pid's.\n",
-+ num_pids);
-+ return stat;
-+ }
-+
-+ /* Allocate some memory to hold this stuff in before
-+ * we copy it out to user-space */
-+ pid_array = (pid_t *) kmalloc (num_pids *
-+ sizeof (pid_t),
-+ GFP_KERNEL);
-+ if (pid_array == NULL)
-+ return -ENOMEM;
-+
-+ /* Now march through the PID list */
-+ pid_array[0] = 0;
-+ read_lock (&tasklist_lock);
-+ for_each_task (p) {
-+ if (!p->pid)
-+ continue;
-+ (pid_array[0])++;
-+ if (pid_array[0] >= (num_pids - 1))
-+ continue;
-+ pid_array[pid_array[0]] = p->pid;
-+ }
-+ read_unlock (&tasklist_lock);
-+
-+ /* Copy out to the user the number we actually filled
-+ */
-+ copy_to_user_ret ((void *) arg, pid_array,
-+ sizeof (pid_t) * pid_array[0],
-+ -EFAULT);
-+ kfree (pid_array);
-+
-+ return 0;
-+ }
-+
-+ /* Find the details on a particular pid, and fill out a
-+ struct with all the gory details. */
-+ case DEVPS_GET_PID_INFO:{
-+ struct task_struct *p;
-+ struct pid_info mypidinfo;
-+ unsigned int state;
-+ /* 'R' running */
-+ /* 'S' sleeping */
-+ /* 'D' disk sleep */
-+ /* 'Z' zombie */
-+ /* 'T' stopped */
-+ /* 'W' paging */
-+ const char *state_string = "RSDZTW";
-+
-+ copy_from_user_ret (&mypidinfo,
-+ (struct pid_info *) arg,
-+ sizeof (mypidinfo), -EFAULT);
-+
-+ read_lock (&tasklist_lock);
-+ p = find_task_by_pid (mypidinfo.pid);
-+ read_unlock (&tasklist_lock);
-+
-+ /* Now copy all this crap so we can tell user space
-+ all about it. ick. */
-+ memset (mypidinfo.name, 0,
-+ sizeof (mypidinfo.name));
-+ strcpy (mypidinfo.name, p->comm);
-+ mypidinfo.flags = p->flags;
-+ mypidinfo.pgrp = p->pgrp;
-+ mypidinfo.tms_cutime = p->times.tms_cutime;
-+ mypidinfo.tms_cstime = p->times.tms_cstime;
-+ mypidinfo.tms_utime = p->times.tms_utime;
-+ mypidinfo.tms_stime = p->times.tms_stime;
-+ mypidinfo.min_flt = p->min_flt;
-+ mypidinfo.cmin_flt = p->cmin_flt;
-+ mypidinfo.maj_flt = p->maj_flt;
-+ mypidinfo.cmaj_flt = p->cmaj_flt;
-+ mypidinfo.session = p->session;
-+ mypidinfo.pid = p->pid;
-+ mypidinfo.ppid = p->p_pptr->pid;
-+ mypidinfo.tty =
-+ p->tty ? kdev_t_to_nr (p->tty->device) : 0;
-+ mypidinfo.start_time = p->start_time;
-+ mypidinfo.uid = p->uid;
-+ mypidinfo.euid = p->euid;
-+ mypidinfo.suid = p->suid;
-+ mypidinfo.fsuid = p->fsuid;
-+ mypidinfo.gid = p->gid;
-+ mypidinfo.egid = p->egid;
-+ mypidinfo.sgid = p->sgid;
-+ mypidinfo.fsgid = p->fsgid;
-+ mypidinfo.priority = 20 - (p->counter * 10 +
-+ DEF_PRIORITY / 2) / DEF_PRIORITY;
-+ mypidinfo.nice = 20 - (mypidinfo.priority * 20 +
-+ DEF_PRIORITY / 2) / DEF_PRIORITY;
-+ state = p-> state & (TASK_RUNNING | TASK_INTERRUPTIBLE
-+ | TASK_UNINTERRUPTIBLE |
-+ TASK_ZOMBIE | TASK_STOPPED |
-+ TASK_SWAPPING);
-+ while (state) {
-+ state_string++;
-+ state >>= 1;
-+ }
-+ mypidinfo.state = *state_string;
-+ mypidinfo.processor = p->processor;
-+ mypidinfo.nswap = p->nswap;
-+ mypidinfo.cnswap = p->cnswap;
-+ if (p && p->mm) {
-+ char *page = NULL;
-+
-+ /* Look for some elbow room */
-+ if (!(page = (char*)get_free_page (GFP_KERNEL)))
-+ return -ENOMEM;
-+ /* Grab the command line */
-+ get_array (p, p->mm->arg_start,
-+ p->mm->arg_end, page);
-+ memcpy( mypidinfo.command_line, page, sizeof( mypidinfo.command_line));
-+ mypidinfo.command_line[sizeof( mypidinfo.command_line)-1]='\0';
-+
-+ /* Grab the environment */
-+ memset (page, 0, PAGE_SIZE);
-+ get_array (p, p->mm->env_start,
-+ p->mm->env_end, page);
-+ memcpy( mypidinfo.environment, page, sizeof( mypidinfo.environment));
-+ mypidinfo.command_line[sizeof( mypidinfo.environment)-1]='\0';
-+ free_page ((unsigned long) page);
-+ }
-+ memset (mypidinfo.cwd, 0, sizeof (mypidinfo.cwd));
-+ get_name_from_dentry (dget (p->fs->pwd), mypidinfo.cwd,
-+ sizeof (mypidinfo.cwd));
-+ memset (mypidinfo.root, 0, sizeof (mypidinfo.root));
-+ get_name_from_dentry (dget (p->fs->root),
-+ mypidinfo.root,
-+ sizeof (mypidinfo.root));
-+
-+ copy_to_user_ret ((struct pid_info *) arg,
-+ &mypidinfo, sizeof (mypidinfo),
-+ -EFAULT);
-+
-+ return 0;
-+ }
-+
-+ /* Return the PID of the current process */
-+ case DEVPS_GET_CURRENT_PID:{
-+ return current->pid;
-+ }
-+
-+ default:
-+ return -EINVAL;
-+
-+ }
-+ return 0;
-+}
-+
-+
-+
-+/****************************************************************************
-+ * Set up the file operations devps will support
-+ */
-+static struct file_operations devps_fops = {
-+ NULL, /* No lseek */
-+ NULL, /* No read */
-+ NULL, /* No write */
-+ NULL, /* No readdir */
-+ NULL, /* No poll */
-+ devps_ioctl,
-+ NULL, /* No mmap */
-+ devps_open,
-+ NULL, /* flush */
-+ devps_release,
-+ NULL, /* fsync */
-+ NULL, /* fasync */
-+ NULL, /* check_media_change */
-+ NULL /* revalidate */
-+};
-+
-+static struct miscdevice devps_misc_dev = {
-+ DEVPS_MINOR,
-+ "devps",
-+ &devps_fops
-+};
-+
-+/* The real driver initialization function */
-+extern int devps_init (void)
-+{
-+ printk (KERN_INFO "devps driver %s loaded\n", DEVPS_VERSION);
-+
-+ if (misc_register (&devps_misc_dev)) {
-+ printk ("devps: unable to get misc device %d\n",
-+ DEVPS_MINOR);
-+ return -EIO;
-+ }
-+
-+ return 0;
-+}
-+
-+#ifdef MODULE
-+
-+MODULE_AUTHOR ("Erik Andersen <andersee@debian.org>");
-+MODULE_DESCRIPTION
-+ ("devps driver -- exports kernel process information to user space");
-+
-+
-+/* Stub driver initialization function */
-+int init_module (void)
-+{
-+ return (devps_init ());
-+}
-+
-+void cleanup_module (void)
-+{
-+ printk (KERN_INFO "devps driver unloaded\n");
-+ misc_deregister (&devps_misc_dev);
-+}
-+
-+#endif /* endif MODULE */
-diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/drivers/char/makedevps.sh linux/drivers/char/makedevps.sh
---- linux-2.2.18-9.virgin/drivers/char/makedevps.sh Wed Dec 31 17:00:00 1969
-+++ linux/drivers/char/makedevps.sh Mon Sep 25 17:00:57 2000
-@@ -0,0 +1,5 @@
-+#!/bin/sh -x
-+
-+gcc -Wall -g -I /usr/src/linux/include ps-devps.c -o ps-devps
-+gcc -Wall -g -I /usr/src/linux/include mounts.c -o mounts
-+
-diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/drivers/char/misc.c linux/drivers/char/misc.c
---- linux-2.2.18-9.virgin/drivers/char/misc.c Mon Sep 18 15:02:31 2000
-+++ linux/drivers/char/misc.c Mon Sep 25 17:00:57 2000
-@@ -85,6 +85,8 @@
- extern int pmu_device_init(void);
- extern int tosh_init(void);
- extern int rng_init(void);
-+extern int devps_init(void);
-+extern int devmtab_init(void);
-
- static int misc_read_proc(char *buf, char **start, off_t offset,
- int len, int *eof, void *private)
-@@ -268,6 +270,12 @@
- #endif
- #ifdef CONFIG_PMAC_PBOOK
- pmu_device_init();
-+#endif
-+#ifdef CONFIG_DEVPS
-+ devps_init();
-+#endif
-+#ifdef CONFIG_DEVMTAB
-+ devmtab_init();
- #endif
- #ifdef CONFIG_SGI_NEWPORT_GFX
- gfx_register ();
-diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/drivers/char/mounts.c linux/drivers/char/mounts.c
---- linux-2.2.18-9.virgin/drivers/char/mounts.c Wed Dec 31 17:00:00 1969
-+++ linux/drivers/char/mounts.c Mon Sep 25 17:00:57 2000
-@@ -0,0 +1,116 @@
-+/* vi: set sw=4 ts=4: */
-+/*
-+ * devmtab tester
-+ *
-+ *
-+ * Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License as published by
-+ * the Free Software Foundation; either version 2 of the License, or
-+ * (at your option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-+ * General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program; if not, write to the Free Software
-+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-+ *
-+ */
-+
-+#include <stdio.h>
-+#include <stdlib.h>
-+#include <errno.h>
-+#include <string.h>
-+#include <unistd.h>
-+#include <time.h>
-+#include <fcntl.h>
-+#include <sys/ioctl.h>
-+#include <sys/types.h>
-+#include <linux/devmtab.h>
-+
-+
-+int main (int argc, char **argv)
-+{
-+ char device[80] = "/dev/mtab";
-+ int fd; /* file descriptor for devmtab device */
-+ int i, numfilesystems;
-+ struct k_fstype *fslist;
-+ struct k_mntent *mntentlist;
-+
-+ if (argc > 1 && **(argv + 1) == '-') {
-+ fprintf(stderr, "Usage: mounts\n\nReport mounted stuff\n\nThis version of mounts accepts no options.\n\n");
-+ exit(1);
-+ }
-+
-+ /* open device */
-+ if ((fd = open(device, O_RDONLY)) < 0) {
-+ fprintf (stderr, "open failed for `%s': %s\n",
-+ device, strerror (errno));
-+ exit (1);
-+ }
-+
-+ /* How many filesystems? We need to know to allocate
-+ * enough space for later... */
-+ numfilesystems = ioctl (fd, DEVMTAB_COUNT_FILESYSTEMS);
-+ if (numfilesystems<0) {
-+ fprintf (stderr, "\nDEVMTAB_COUNT_FILESYSTEMS: %s\n",
-+ strerror (errno));
-+ exit (1);
-+ }
-+ fslist = (struct k_fstype *) calloc ( numfilesystems, sizeof(struct k_fstype));
-+
-+ /* Grab the list of available filesystems */
-+ if (ioctl (fd, DEVMTAB_GET_FILESYSTEMS, fslist)<0) {
-+ fprintf (stderr, "\nDEVMTAB_GET_FILESYSTEMS: %s\n",
-+ strerror (errno));
-+ exit (1);
-+ }
-+ fprintf( stdout, "\nEquivalent of /proc/filesystems:\n");
-+ for( i = 0 ; i < numfilesystems ; i++) {
-+ fprintf( stdout, "%s%s\n", fslist[i].mnt_type,
-+ (fslist[i].mnt_nodev)? " nodev" : "");
-+ }
-+
-+
-+ /* How many mounted filesystems? We need to know to
-+ * allocate enough space for later... */
-+ numfilesystems = ioctl (fd, DEVMTAB_COUNT_MOUNTS);
-+ if (numfilesystems<0) {
-+ fprintf (stderr, "\nDEVMTAB_COUNT_MOUNTS: %s\n",
-+ strerror (errno));
-+ exit (1);
-+ }
-+ mntentlist = (struct k_mntent *) calloc ( numfilesystems, sizeof(struct k_mntent));
-+
-+ /* Grab the list of mounted filesystems */
-+ if (ioctl (fd, DEVMTAB_GET_MOUNTS, mntentlist)<0) {
-+ fprintf (stderr, "\nDEVMTAB_GET_MOUNTS: %s\n",
-+ strerror (errno));
-+ exit (1);
-+ }
-+
-+ fprintf( stdout, "\nEquivalent of /proc/mounts:\n");
-+ for( i = 0 ; i < numfilesystems ; i++) {
-+ fprintf( stdout, "%s %s %s %s %d %d\n", mntentlist[i].mnt_fsname,
-+ mntentlist[i].mnt_dir, mntentlist[i].mnt_type,
-+ mntentlist[i].mnt_opts, mntentlist[i].mnt_freq,
-+ mntentlist[i].mnt_passno);
-+ }
-+
-+
-+ /* clean up */
-+ free( fslist);
-+ free( mntentlist);
-+ if (close (fd) != 0) {
-+ fprintf (stderr, "close failed for `%s': %s\n",
-+ device, strerror (errno));
-+ exit (1);
-+ }
-+
-+ exit (0);
-+}
-+
-diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/drivers/char/ps-devps.c linux/drivers/char/ps-devps.c
---- linux-2.2.18-9.virgin/drivers/char/ps-devps.c Wed Dec 31 17:00:00 1969
-+++ linux/drivers/char/ps-devps.c Mon Sep 25 17:32:19 2000
-@@ -0,0 +1,148 @@
-+/* vi: set sw=4 ts=4: */
-+/*
-+ * Mini ps implementation for use with the Linux devps driver
-+ *
-+ *
-+ * Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License as published by
-+ * the Free Software Foundation; either version 2 of the License, or
-+ * (at your option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-+ * General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program; if not, write to the Free Software
-+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-+ *
-+ */
-+
-+#include <stdio.h>
-+#include <stdlib.h>
-+#include <errno.h>
-+#include <string.h>
-+#include <unistd.h>
-+#include <time.h>
-+#include <fcntl.h>
-+#include <sys/ioctl.h>
-+#include <linux/devps.h>
-+#include <pwd.h>
-+#include <grp.h>
-+#include <sys/types.h>
-+
-+
-+#define MAX_COLUMN 79
-+
-+int
-+main (int argc, char **argv)
-+{
-+ char device[80] = "/dev/ps";
-+ int i, j, len;
-+ int fd; /* file descriptor for devps device */
-+ int status; /* return status for system calls */
-+ pid_t num_pids;
-+ pid_t* pid_array = NULL;
-+ struct pid_info info;
-+ struct passwd *pwd;
-+ struct group *grp;
-+ char uidName[10] = "";
-+ char groupName[10] = "";
-+
-+ if (argc > 1 && **(argv + 1) == '-') {
-+ fprintf(stderr, "Usage: ps-devps\n\nReport process status\n\nThis version of ps accepts no options.\n\n");
-+ exit(1);
-+ }
-+
-+ /* open device */
-+ //fd = open(device, O_RDWR);
-+ fd = open(device, O_RDONLY);
-+ if (fd < 0) {
-+ fprintf (stderr, "open failed for `%s': %s\n",
-+ device, strerror (errno));
-+ goto error;
-+ }
-+
-+ /* Find out how many processes there are */
-+ status = ioctl (fd, DEVPS_GET_NUM_PIDS, &num_pids);
-+ if (status<0) {
-+ fprintf (stderr, "\nDEVPS_GET_PID_LIST: %s\n",
-+ strerror (errno));
-+ goto error;
-+ }
-+
-+ /* Allocate some memory -- grab a few extras just in case
-+ * some new processes start up while we wait. The kernel will
-+ * just ignore any extras if we give it too many, and will trunc.
-+ * the list if we give it too few. */
-+ pid_array = (pid_t*) calloc( num_pids+10, sizeof(pid_t));
-+ pid_array[0] = num_pids+10;
-+
-+ /* Now grab the pid list */
-+ status = ioctl (fd, DEVPS_GET_PID_LIST, pid_array);
-+ if (status<0) {
-+ fprintf (stderr, "\nDEVPS_GET_PID_LIST: %s\n",
-+ strerror (errno));
-+ goto error;
-+ }
-+
-+ /* Print up a ps listing */
-+ fprintf(stdout, "%5s %-8s %-3s %5s %s\n", "PID", "Uid", "Gid",
-+ "State", "Command");
-+
-+ for (i=1; i<pid_array[0] ; i++) {
-+ info.pid = pid_array[i];
-+ status = ioctl (fd, DEVPS_GET_PID_INFO, &info);
-+ if (status<0) {
-+ fprintf (stderr, "\nDEVPS_GET_PID_INFO: %s\n",
-+ strerror (errno));
-+ goto error;
-+ }
-+ /* Make some adjustments as needed */
-+ pwd = getpwuid(info.euid);
-+ if (pwd == NULL)
-+ sprintf(uidName, "%lu", info.euid);
-+ else
-+ sprintf(uidName, "%s", pwd->pw_name);
-+ grp = getgrgid(info.egid);
-+ if (grp == NULL)
-+ sprintf(groupName, "%lu", info.egid);
-+ else
-+ sprintf(groupName, "%s", grp->gr_name);
-+
-+ len = fprintf(stdout, "%5d %-8s %-8s %c ", info.pid, uidName, groupName, info.state);
-+
-+ if (strlen(info.command_line) > 1) {
-+ for( j=0; j<(sizeof(info.command_line)-1) && j < (MAX_COLUMN-len); j++) {
-+ if (*(info.command_line+j) == '\0' && *(info.command_line+j+1) != '\0') {
-+ *(info.command_line+j) = ' ';
-+ }
-+ }
-+ *(info.command_line+j) = '\0';
-+ fprintf(stdout, "%s\n", info.command_line);
-+ } else {
-+ fprintf(stdout, "[%s]\n", info.name);
-+ }
-+ }
-+
-+ /* Free memory */
-+ free( pid_array);
-+
-+ /* close device */
-+ status = close (fd);
-+ if (status != 0) {
-+ fprintf (stderr, "close failed for `%s': %s\n",
-+ device, strerror (errno));
-+ goto error;
-+ }
-+
-+ exit (0);
-+error:
-+ fflush(stdout);
-+ fflush(stderr);
-+ exit (1);
-+}
-+
-diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/fs/Makefile linux/fs/Makefile
---- linux-2.2.18-9.virgin/fs/Makefile Wed Aug 25 18:29:49 1999
-+++ linux/fs/Makefile Mon Sep 25 16:33:16 2000
-@@ -11,9 +11,10 @@
- L_OBJS = $(join $(SUB_DIRS),$(SUB_DIRS:%=/%.o))
- O_TARGET := fs.o
- O_OBJS = open.o read_write.o devices.o file_table.o buffer.o \
-- super.o block_dev.o stat.o exec.o pipe.o namei.o fcntl.o \
-+ block_dev.o stat.o exec.o pipe.o namei.o fcntl.o \
- ioctl.o readdir.o select.o fifo.o locks.o filesystems.o \
- dcache.o inode.o attr.o bad_inode.o file.o $(BINFMTS)
-+OX_OBJS = super.o
-
- MOD_LIST_NAME := FS_MODULES
- ALL_SUB_DIRS = coda minix ext2 fat msdos vfat proc isofs nfs umsdos ntfs \
-diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/fs/super.c linux/fs/super.c
---- linux-2.2.18-9.virgin/fs/super.c Mon Sep 18 15:02:34 2000
-+++ linux/fs/super.c Mon Sep 25 17:00:57 2000
-@@ -18,6 +18,7 @@
- */
-
- #include <linux/config.h>
-+#include <linux/module.h>
- #include <linux/malloc.h>
- #include <linux/locks.h>
- #include <linux/smp_lock.h>
-@@ -25,6 +26,7 @@
- #include <linux/init.h>
- #include <linux/quotaops.h>
- #include <linux/acct.h>
-+#include <linux/devmtab.h>
-
- #include <asm/uaccess.h>
-
-@@ -311,7 +313,57 @@
- { 0, NULL }
- };
-
--int get_filesystem_info( char *buf )
-+
-+extern int count_mounted_filesystems()
-+{
-+ struct vfsmount *tmp = vfsmntlist;
-+ int count = 0;
-+
-+ while (tmp)
-+ {
-+ tmp = tmp->mnt_next;
-+ count++;
-+ }
-+
-+ return count;
-+}
-+EXPORT_SYMBOL(count_mounted_filesystems);
-+
-+
-+extern void get_mtab_entries( int count, struct k_mntent* mntentlist)
-+{
-+ struct vfsmount *tmp = vfsmntlist;
-+ struct proc_fs_info *fs_infop;
-+ int i = 0, len;
-+
-+ while (tmp && i < count)
-+ {
-+ strncpy(mntentlist[i].mnt_fsname, tmp->mnt_devname,
-+ sizeof(mntentlist[i].mnt_fsname));
-+ strncpy(mntentlist[i].mnt_dir, tmp->mnt_dirname,
-+ sizeof(mntentlist[i].mnt_dir));
-+ strncpy(mntentlist[i].mnt_type, tmp->mnt_sb->s_type->name,
-+ sizeof(mntentlist[i].mnt_type));
-+ len = 0;
-+ len+=sprintf(mntentlist[i].mnt_opts, "%s",
-+ tmp->mnt_flags & MS_RDONLY ? "ro" : "rw");
-+ for (fs_infop = fs_info; fs_infop->flag; fs_infop++) {
-+ if (tmp->mnt_flags & fs_infop->flag) {
-+ strncpy(mntentlist[i].mnt_opts+len, fs_infop->str,
-+ sizeof(mntentlist[i].mnt_opts)-len);
-+ len += strlen(fs_infop->str);
-+ }
-+ }
-+
-+ /* TODO -- add in NFS stuff */
-+
-+ tmp = tmp->mnt_next;
-+ i++;
-+ }
-+}
-+EXPORT_SYMBOL(get_mtab_entries);
-+
-+extern int get_filesystem_info( char *buf )
- {
- struct vfsmount *tmp = vfsmntlist;
- struct proc_fs_info *fs_infop;
-@@ -383,8 +435,37 @@
-
- return len;
- }
-+EXPORT_SYMBOL(get_filesystem_info);
-+
-+extern int count_kfstypes()
-+{
-+ struct file_system_type * tmp = file_systems;
-+ int count = 0;
-+
-+ while (tmp) {
-+ count++;
-+ tmp = tmp->next;
-+ }
-+
-+ return count;
-+}
-+EXPORT_SYMBOL(count_kfstypes);
-+
-+extern void get_kfstype_list(int count, struct k_fstype* fstypelist)
-+{
-+ int i = 0;
-+ struct file_system_type * tmp = file_systems;
-+
-+ while (tmp && i < count) {
-+ strncpy(fstypelist[i].mnt_type, tmp->name, sizeof(fstypelist[i].mnt_type));
-+ fstypelist[i].mnt_nodev = (tmp->fs_flags & FS_REQUIRES_DEV)? 0 : 1;
-+ tmp = tmp->next;
-+ i++;
-+ }
-+}
-+EXPORT_SYMBOL(get_kfstype_list);
-
--int get_filesystem_list(char * buf)
-+extern int get_filesystem_list(char * buf)
- {
- int len = 0;
- struct file_system_type * tmp;
-@@ -398,6 +479,7 @@
- }
- return len;
- }
-+EXPORT_SYMBOL(get_filesystem_list);
-
- struct file_system_type *get_fs_type(const char *name)
- {
-diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/include/linux/devmtab.h linux/include/linux/devmtab.h
---- linux-2.2.18-9.virgin/include/linux/devmtab.h Wed Dec 31 17:00:00 1969
-+++ linux/include/linux/devmtab.h Mon Sep 25 17:00:57 2000
-@@ -0,0 +1,55 @@
-+/* vi: set sw=8 ts=8: */
-+/*
-+ * -- <linux/devmtab.h>
-+ *
-+ * Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org>
-+ *
-+ * May be copied or modified under the terms of the GNU General Public License.
-+ * See linux/COPYING for more information.
-+ *
-+ * This driver implements an interface whereby programs such as mount(8),
-+ * umount(8), and df(1) may obtain all the process information they need to do
-+ * their jobs without needing to use /proc.
-+ *
-+ */
-+
-+#ifndef _LINUX_DEVMTAB_H
-+#define _LINUX_DEVMTAB_H
-+
-+
-+/*******************************************************
-+ * The list of all ioctl(2) commands suported by devmtab.
-+ * For the devmtab ioctls, I have commandeered some of the
-+ * higher bits of byte 0xeb.
-+ *******************************************************/
-+#define DEVMTAB_COUNT_FILESYSTEMS 0xebaa /* Get a list of all fs */
-+#define DEVMTAB_GET_FILESYSTEMS 0xebab /* Get a list of all fs */
-+#define DEVMTAB_COUNT_MOUNTS 0xebac /* Returns number of mounted filesystems */
-+#define DEVMTAB_GET_MOUNTS 0xebad /* Get a list of a mounted fs */
-+#define DEVMTAB_SET_ROOTFS_DEVNAME 0xebae /* Replace /dev/root with real name */
-+
-+/*******************************************************
-+ * devmtab ioctl(2) structures
-+ *******************************************************/
-+
-+/* An array of these is returned by the DEVMTAB_GET_FILESYSTEMS ioctl.
-+ */
-+struct k_fstype {
-+ char mnt_type[255]; /* filesystem type: ext2, nfs, etc. */
-+ int mnt_nodev; /* Is this a device-less filesystem? */
-+};
-+
-+/* An array of these is returned by the DEVMTAB_GET_MOUNTS ioctl.
-+ * This struct should be the same as what libc returns via the
-+ * getmntent(3) function (excat this comes from the kernel, not
-+ * from whatever noise is in /etc/mtab at the moment... */
-+struct k_mntent {
-+ char mnt_fsname[255]; /* name of mounted file system */
-+ char mnt_dir[255]; /* path of file system mount point */
-+ char mnt_type[255]; /* filesystem type: ext2, nfs, etc. */
-+ char mnt_opts[255]; /* Comma-separated list of mount options */
-+ int mnt_freq; /* dump frequency in days */
-+ int mnt_passno; /* pass number for parallel fsck */
-+};
-+
-+#endif /* _LINUX_DEVMTAB_H */
-diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/include/linux/devps.h linux/include/linux/devps.h
---- linux-2.2.18-9.virgin/include/linux/devps.h Wed Dec 31 17:00:00 1969
-+++ linux/include/linux/devps.h Mon Sep 25 17:00:57 2000
-@@ -0,0 +1,78 @@
-+/*
-+ * -- <linux/devps.h>
-+ *
-+ * Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org>
-+ *
-+ * May be copied or modified under the terms of the GNU General Public License.
-+ * See linux/COPYING for more information.
-+ *
-+ * This driver implements an interface whereby programs such as ps(1), top(1),
-+ * killall(1) and the like may obtain all the process information they need to
-+ * do their jobs.
-+ *
-+ */
-+
-+#ifndef _LINUX_DEVPS_H
-+#define _LINUX_DEVPS_H
-+
-+
-+/*******************************************************
-+ * The list of all ioctl(2) commands suported by devps.
-+ * For the devps ioctls, I have commandeered some of the
-+ * higher bits of byte 0xeb.
-+ *******************************************************/
-+#define DEVPS_GET_NUM_PIDS 0xeba1 /* Get a list of all PIDs */
-+#define DEVPS_GET_PID_LIST 0xeba2 /* Get a list of all PIDs */
-+#define DEVPS_GET_PID_INFO 0xeba3 /* Get info about a specific PID */
-+#define DEVPS_GET_CURRENT_PID 0xeba4 /* Get the current PID */
-+
-+/*******************************************************
-+ * devps ioctl(2) structures
-+ *******************************************************/
-+
-+
-+struct pid_info
-+{
-+ char name[16];
-+ long flags;
-+ pid_t pgrp;
-+ clock_t tms_cutime;
-+ clock_t tms_cstime;
-+ clock_t tms_utime;
-+ clock_t tms_stime;
-+ unsigned long min_flt;
-+ unsigned long cmin_flt;
-+ unsigned long maj_flt;
-+ unsigned long cmaj_flt;
-+ pid_t session;
-+ pid_t pid;
-+ pid_t ppid;
-+ int tty;
-+ unsigned long start_time;
-+ unsigned long uid,euid,suid,fsuid;
-+ unsigned long gid,egid,sgid,fsgid;
-+ long priority, nice;
-+ char state;
-+ int processor;
-+ unsigned long nswap, cnswap;
-+ char command_line[256];
-+ char environment[256];
-+ char root[256];
-+ char cwd[256];
-+#if 0
-+ /* TODO: Add in this (and probably more) stuff */
-+
-+ int resident;
-+ int size;
-+ int share;
-+ unsigned long vsize;
-+ char exe[MAX_PATH];
-+ unsigned long vm_total, vm_locked, vm_rss, vm_data, vm_stack, vm_exec, vm_lib;
-+ unsigned long start_code, end_code, start_data, eip, esp;
-+ unsigned long signal, blocked;
-+#endif
-+
-+
-+};
-+
-+#endif /* _LINUX_DEVPS_H */
-diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/include/linux/fs.h linux/include/linux/fs.h
---- linux-2.2.18-9.virgin/include/linux/fs.h Mon Sep 18 15:08:47 2000
-+++ linux/include/linux/fs.h Mon Sep 25 17:37:50 2000
-@@ -573,6 +573,16 @@
- struct semaphore s_vfs_rename_sem; /* Kludge */
- };
-
-+/* fs/super.c */
-+#include <linux/devmtab.h>
-+
-+extern int count_kfstypes( void);
-+extern void get_kfstype_list( int count, struct k_fstype* fstypelist);
-+extern int count_mounted_filesystems( void);
-+extern int get_filesystem_info(char *buf);
-+extern int get_filesystem_list(char *buf);
-+extern void get_mtab_entries( int count, struct k_mntent* mntentlist);
-+
- /*
- * VFS helper functions..
- */
-diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/include/linux/miscdevice.h linux/include/linux/miscdevice.h
---- linux-2.2.18-9.virgin/include/linux/miscdevice.h Mon Aug 9 13:04:41 1999
-+++ linux/include/linux/miscdevice.h Mon Sep 25 16:33:17 2000
-@@ -11,6 +11,8 @@
- #define APOLLO_MOUSE_MINOR 7
- #define PC110PAD_MINOR 9
- #define MAC_MOUSE_MINOR 10
-+#define DEVPS_MINOR 21
-+#define DEVMTAB_MINOR 22
- #define WATCHDOG_MINOR 130 /* Watchdog timer */
- #define TEMP_MINOR 131 /* Temperature Sensor */
- #define RTC_MINOR 135