[PATCH 1/3] 2.6 ISDN Eicon driver: add missing uaccess

[PATCH 1/3] 2.6 ISDN Eicon driver: add missing uaccess

[Armin Schindler]

This patch adds asm/uaccess.h to files which uses copy_to/from_user()
and adds the use of the drivers internal API call to copy_to/from_user()
in platform independent code.

Signed-off-by: Armin Schindler <armin@melware.de>


diff -Nur linux.orig/drivers/isdn/hardware/eicon/divamnt.c linux/drivers/isdn/hardware/eicon/divamnt.c
--- linux.orig/drivers/isdn/hardware/eicon/divamnt.c	2005-01-31 12:34:17.668288724 +0100
+++ linux/drivers/isdn/hardware/eicon/divamnt.c	2005-01-31 13:22:46.887318527 +0100
@@ -1,4 +1,4 @@
-/* $Id: divamnt.c,v 1.32.6.5 2004/08/28 20:03:53 armin Exp $
+/* $Id: divamnt.c,v 1.32.6.9 2005/01/31 12:22:20 armin Exp $
  *
  * Driver for Eicon DIVA Server ISDN cards.
  * Maint module
@@ -18,13 +18,14 @@
 #include <linux/smp_lock.h>
 #include <linux/poll.h>
 #include <linux/devfs_fs_kernel.h>
+#include <asm/uaccess.h>
 
 #include "platform.h"
 #include "di_defs.h"
 #include "divasync.h"
 #include "debug_if.h"
 
-static char *main_revision = "$Revision: 1.32.6.5 $";
+static char *main_revision = "$Revision: 1.32.6.9 $";
 
 static int major;
 
diff -Nur linux.orig/drivers/isdn/hardware/eicon/divasi.c linux/drivers/isdn/hardware/eicon/divasi.c
--- linux.orig/drivers/isdn/hardware/eicon/divasi.c	2005-01-31 12:33:40.075790246 +0100
+++ linux/drivers/isdn/hardware/eicon/divasi.c	2005-01-31 13:22:46.887318527 +0100
@@ -1,4 +1,4 @@
-/* $Id: divasi.c,v 1.25 2003/09/09 06:46:29 schindler Exp $
+/* $Id: divasi.c,v 1.25.6.2 2005/01/31 12:22:20 armin Exp $
  *
  * Driver for Eicon DIVA Server ISDN cards.
  * User Mode IDI Interface 
@@ -20,6 +20,7 @@
 #include <linux/proc_fs.h>
 #include <linux/skbuff.h>
 #include <linux/devfs_fs_kernel.h>
+#include <asm/uaccess.h>
 
 #include "platform.h"
 #include "di_defs.h"
@@ -27,7 +28,7 @@
 #include "um_xdi.h"
 #include "um_idi.h"
 
-static char *main_revision = "$Revision: 1.25 $";
+static char *main_revision = "$Revision: 1.25.6.2 $";
 
 static int major;
 
diff -Nur linux.orig/drivers/isdn/hardware/eicon/divasproc.c linux/drivers/isdn/hardware/eicon/divasproc.c
--- linux.orig/drivers/isdn/hardware/eicon/divasproc.c	2005-01-31 12:35:17.717098225 +0100
+++ linux/drivers/isdn/hardware/eicon/divasproc.c	2005-01-31 13:22:46.888318407 +0100
@@ -1,4 +1,4 @@
-/* $Id: divasproc.c,v 1.19 2004/03/21 17:26:01 armin Exp $
+/* $Id: divasproc.c,v 1.19.4.3 2005/01/31 12:22:20 armin Exp $
  *
  * Low level driver for Eicon DIVA Server ISDN cards.
  * /proc functions
@@ -16,6 +16,7 @@
 #include <linux/poll.h>
 #include <linux/proc_fs.h>
 #include <linux/list.h>
+#include <asm/uaccess.h>
 
 #include "platform.h"
 #include "debuglib.h"
diff -Nur linux.orig/drivers/isdn/hardware/eicon/mntfunc.c linux/drivers/isdn/hardware/eicon/mntfunc.c
--- linux.orig/drivers/isdn/hardware/eicon/mntfunc.c	2005-01-31 12:32:26.210635302 +0100
+++ linux/drivers/isdn/hardware/eicon/mntfunc.c	2005-01-31 13:22:46.896317449 +0100
@@ -1,4 +1,4 @@
-/* $Id: mntfunc.c,v 1.19.6.2 2004/08/28 20:03:53 armin Exp $
+/* $Id: mntfunc.c,v 1.19.6.4 2005/01/31 12:22:20 armin Exp $
  *
  * Driver for Eicon DIVA Server ISDN cards.
  * Maint module
@@ -187,7 +187,7 @@
 		if (!mask) {
 			ret = diva_set_trace_filter (1, "*");
 		} else if (mask < sizeof(data)) {
-			if (copy_from_user(data, (char __user *)buf+12, mask)) {
+			if (diva_os_copy_from_user(NULL, data, (char __user *)buf+12, mask)) {
 				ret = -EFAULT;
 			} else {
 				ret = diva_set_trace_filter ((int)mask, data);
@@ -199,7 +199,7 @@
 
 	case DITRACE_READ_SELECTIVE_TRACE_FILTER:
 		if ((ret = diva_get_trace_filter (sizeof(data), data)) > 0) {
-			if (copy_to_user (buf, data, ret))
+			if (diva_os_copy_to_user (NULL, buf, data, ret))
 				ret = -EFAULT;
 		} else {
 			ret = -ENODEV;

[PATCH] Time to change NR_OPEN value

[Eric Dumazet]

Time has come to change NR_OPEN value, some production servers hit the 
not so 'ridiculously high value' of 1024*1024 file descriptors per process.

AFAIK this is safe to raise this value, because alloc_fd_array() uses 
vmalloc() for large arrays and vmalloc() returns NULL  if a too large 
allocation is attempted (or in case of memory shortage)

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>

diff -Nru /tmp/fs.h include/linux/fs.h
--- linux.orig/include/linux/fs.h   2005-01-31 15:28:01.926685144 +0100
+++ inux/include/linux/fs.h  2005-01-31 15:29:37.047224624 +0100
@@ -32,7 +32,8 @@
   * It's silly to have NR_OPEN bigger than NR_FILE, but you can change
   * the file limit at runtime and only root can increase the per-process
   * nr_file rlimit, so it's safe to set up a ridiculously high absolute
- * upper limit on files-per-process.
+ * upper limit on files-per-process. Actual limit depends on vmalloc()
+ * constraints.
   *
   * Some programs (notably those using select()) may have to be
   * recompiled to take full advantage of the new limits..
@@ -40,7 +41,7 @@

  /* Fixed constants first: */
  #undef NR_OPEN
-#define NR_OPEN (1024*1024)    /* Absolute upper limit on fd num */
+#define NR_OPEN (16*1024*1024) /* Absolute upper limit on fd num */
  #define INR_OPEN 1024          /* Initial setting for nfile rlimits */

  #define BLOCK_SIZE_BITS 10