diff -u --recursive --new-file v2.4.0/linux/Documentation/Changes linux/Documentation/Changes
--- v2.4.0/linux/Documentation/Changes	Mon Jan  1 10:00:04 2001
+++ linux/Documentation/Changes	Mon Jan  8 15:18:32 2001
@@ -56,7 +56,7 @@
 o  e2fsprogs              1.19                    # tune2fs --version
 o  pcmcia-cs              3.1.21                  # cardmgr -V
 o  PPP                    2.4.0                   # pppd --version
-o  isdn4k-utils           3.1beta7                # isdnctrl 2>&1|grep version
+o  isdn4k-utils           3.1pre1                 # isdnctrl 2>&1|grep version
 			  
 Kernel compilation
 ==================
diff -u --recursive --new-file v2.4.0/linux/Documentation/Configure.help linux/Documentation/Configure.help
--- v2.4.0/linux/Documentation/Configure.help	Thu Jan  4 13:00:55 2001
+++ linux/Documentation/Configure.help	Mon Jan  8 15:06:01 2001
@@ -14619,6 +14619,14 @@
   This enables Van Jacobson header compression for synchronous PPP.
   Say Y if the other end of the connection supports it.
 
+CONFIG_ISDN_PPP_BSDCOMP
+  Support for the BSD-Compress compression method for PPP, which uses
+  the LZW compression method to compress each PPP packet before it is
+  sent over the wire. The machine at the other end of the PPP link
+  (usually your ISP) has to support the BSD-Compress compression
+  method as well for this to be useful. Even if they don't support it,
+  it is safe to say Y here.
+
 Support audio via ISDN
 CONFIG_ISDN_AUDIO
   If you say Y here, the modem-emulator will support a subset of the
diff -u --recursive --new-file v2.4.0/linux/Makefile linux/Makefile
--- v2.4.0/linux/Makefile	Thu Jan  4 13:48:13 2001
+++ linux/Makefile	Thu Jan 11 00:23:44 2001
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 4
-SUBLEVEL = 0
-EXTRAVERSION =
+SUBLEVEL = 1
+EXTRAVERSION =-pre2
 
 KERNELRELEASE=$(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
 
diff -u --recursive --new-file v2.4.0/linux/arch/i386/Makefile linux/arch/i386/Makefile
--- v2.4.0/linux/arch/i386/Makefile	Fri Dec 29 14:07:19 2000
+++ linux/arch/i386/Makefile	Wed Jan 10 15:06:14 2001
@@ -50,7 +50,7 @@
 CFLAGS += -march=i686
 endif
 
-ifdef CONFIG_M686FXSR
+ifdef CONFIG_MPENTIUMIII
 CFLAGS += -march=i686
 endif
 
diff -u --recursive --new-file v2.4.0/linux/arch/i386/config.in linux/arch/i386/config.in
--- v2.4.0/linux/arch/i386/config.in	Fri Dec 29 14:35:47 2000
+++ linux/arch/i386/config.in	Mon Jan  8 13:27:56 2001
@@ -33,7 +33,7 @@
 	 Pentium-Classic		CONFIG_M586TSC \
 	 Pentium-MMX			CONFIG_M586MMX \
 	 Pentium-Pro/Celeron/Pentium-II	CONFIG_M686 \
-	 Pentium-III			CONFIG_M686FXSR \
+	 Pentium-III			CONFIG_MPENTIUMIII \
 	 Pentium-4			CONFIG_MPENTIUM4 \
 	 K6/K6-II/K6-III		CONFIG_MK6 \
 	 Athlon/K7			CONFIG_MK7 \
@@ -45,8 +45,6 @@
 # Define implied options from the CPU selection here
 #
 
-unset CONFIG_X86_FXSR
-
 if [ "$CONFIG_M386" = "y" ]; then
    define_bool CONFIG_X86_CMPXCHG n
    define_int  CONFIG_X86_L1_CACHE_SHIFT 4
@@ -87,14 +85,12 @@
    define_bool CONFIG_X86_PGE y
    define_bool CONFIG_X86_USE_PPRO_CHECKSUM y
 fi
-if [ "$CONFIG_M686FXSR" = "y" ]; then
+if [ "$CONFIG_MPENTIUMIII" = "y" ]; then
    define_int  CONFIG_X86_L1_CACHE_SHIFT 5
    define_bool CONFIG_X86_TSC y
    define_bool CONFIG_X86_GOOD_APIC y
    define_bool CONFIG_X86_PGE y
    define_bool CONFIG_X86_USE_PPRO_CHECKSUM y
-   define_bool CONFIG_X86_FXSR y
-   define_bool CONFIG_X86_XMM y
 fi
 if [ "$CONFIG_MPENTIUM4" = "y" ]; then
    define_int  CONFIG_X86_L1_CACHE_SHIFT 7
@@ -102,8 +98,6 @@
    define_bool CONFIG_X86_GOOD_APIC y
    define_bool CONFIG_X86_PGE y
    define_bool CONFIG_X86_USE_PPRO_CHECKSUM y
-   define_bool CONFIG_X86_FXSR y
-   define_bool CONFIG_X86_XMM y
 fi
 if [ "$CONFIG_MK6" = "y" ]; then
    define_int  CONFIG_X86_L1_CACHE_SHIFT 5
@@ -158,9 +152,7 @@
    define_bool CONFIG_X86_PAE y
 fi
 
-if [ "$CONFIG_X86_FXSR" != "y" ]; then
-   bool 'Math emulation' CONFIG_MATH_EMULATION
-fi
+bool 'Math emulation' CONFIG_MATH_EMULATION
 bool 'MTRR (Memory Type Range Register) support' CONFIG_MTRR
 bool 'Symmetric multi-processing support' CONFIG_SMP
 if [ "$CONFIG_SMP" != "y" ]; then
diff -u --recursive --new-file v2.4.0/linux/arch/i386/defconfig linux/arch/i386/defconfig
--- v2.4.0/linux/arch/i386/defconfig	Sun Dec 31 09:17:18 2000
+++ linux/arch/i386/defconfig	Mon Jan  8 15:05:57 2001
@@ -27,7 +27,7 @@
 # CONFIG_M586TSC is not set
 # CONFIG_M586MMX is not set
 # CONFIG_M686 is not set
-CONFIG_M686FXSR=y
+CONFIG_MPENTIUMIII=y
 # CONFIG_MPENTIUM4 is not set
 # CONFIG_MK6 is not set
 # CONFIG_MK7 is not set
@@ -45,8 +45,6 @@
 CONFIG_X86_GOOD_APIC=y
 CONFIG_X86_PGE=y
 CONFIG_X86_USE_PPRO_CHECKSUM=y
-CONFIG_X86_FXSR=y
-CONFIG_X86_XMM=y
 # CONFIG_TOSHIBA is not set
 # CONFIG_MICROCODE is not set
 # CONFIG_X86_MSR is not set
@@ -54,6 +52,7 @@
 CONFIG_NOHIGHMEM=y
 # CONFIG_HIGHMEM4G is not set
 # CONFIG_HIGHMEM64G is not set
+# CONFIG_MATH_EMULATION is not set
 # CONFIG_MTRR is not set
 CONFIG_SMP=y
 CONFIG_HAVE_DEC_LOCK=y
diff -u --recursive --new-file v2.4.0/linux/arch/i386/kernel/i387.c linux/arch/i386/kernel/i387.c
--- v2.4.0/linux/arch/i386/kernel/i387.c	Fri Nov  3 09:47:48 2000
+++ linux/arch/i386/kernel/i387.c	Thu Jan 11 17:12:18 2001
@@ -18,14 +18,6 @@
 #include <asm/ptrace.h>
 #include <asm/uaccess.h>
 
-#if defined(CONFIG_X86_FXSR)
-#define HAVE_FXSR 1
-#elif defined(CONFIG_X86_RUNTIME_FXSR)
-#define HAVE_FXSR (cpu_has_fxsr)
-#else
-#define HAVE_FXSR 0
-#endif
-
 #ifdef CONFIG_MATH_EMULATION
 #define HAVE_HWFP (boot_cpu_data.hard_math)
 #else
@@ -35,13 +27,13 @@
 /*
  * The _current_ task is using the FPU for the first time
  * so initialize it and set the mxcsr to its default
- * value at reset if we support FXSR and then
+ * value at reset if we support XMM instructions and then
  * remeber the current task has used the FPU.
  */
 void init_fpu(void)
 {
 	__asm__("fninit");
-	if ( HAVE_FXSR )
+	if ( cpu_has_xmm )
 		load_mxcsr(0x1f80);
 		
 	current->used_math = 1;
@@ -51,9 +43,9 @@
  * FPU lazy state save handling.
  */
 
-void save_init_fpu( struct task_struct *tsk )
+static inline void __save_init_fpu( struct task_struct *tsk )
 {
-	if ( HAVE_FXSR ) {
+	if ( cpu_has_fxsr ) {
 		asm volatile( "fxsave %0 ; fnclex"
 			      : "=m" (tsk->thread.i387.fxsave) );
 	} else {
@@ -61,12 +53,28 @@
 			      : "=m" (tsk->thread.i387.fsave) );
 	}
 	tsk->flags &= ~PF_USEDFPU;
+}
+
+void save_init_fpu( struct task_struct *tsk )
+{
+	__save_init_fpu(tsk);
 	stts();
 }
 
+void kernel_fpu_begin(void)
+{
+	struct task_struct *tsk = current;
+
+	if (tsk->flags & PF_USEDFPU) {
+		__save_init_fpu(tsk);
+		return;
+	}
+	clts();
+}
+
 void restore_fpu( struct task_struct *tsk )
 {
-	if ( HAVE_FXSR ) {
+	if ( cpu_has_fxsr ) {
 		asm volatile( "fxrstor %0"
 			      : : "m" (tsk->thread.i387.fxsave) );
 	} else {
@@ -144,7 +152,7 @@
 
 unsigned short get_fpu_cwd( struct task_struct *tsk )
 {
-	if ( HAVE_FXSR ) {
+	if ( cpu_has_fxsr ) {
 		return tsk->thread.i387.fxsave.cwd;
 	} else {
 		return (unsigned short)tsk->thread.i387.fsave.cwd;
@@ -153,7 +161,7 @@
 
 unsigned short get_fpu_swd( struct task_struct *tsk )
 {
-	if ( HAVE_FXSR ) {
+	if ( cpu_has_fxsr ) {
 		return tsk->thread.i387.fxsave.swd;
 	} else {
 		return (unsigned short)tsk->thread.i387.fsave.swd;
@@ -162,7 +170,7 @@
 
 unsigned short get_fpu_twd( struct task_struct *tsk )
 {
-	if ( HAVE_FXSR ) {
+	if ( cpu_has_fxsr ) {
 		return tsk->thread.i387.fxsave.twd;
 	} else {
 		return (unsigned short)tsk->thread.i387.fsave.twd;
@@ -171,7 +179,7 @@
 
 unsigned short get_fpu_mxcsr( struct task_struct *tsk )
 {
-	if ( HAVE_FXSR ) {
+	if ( cpu_has_fxsr ) {
 		return tsk->thread.i387.fxsave.mxcsr;
 	} else {
 		return 0x1f80;
@@ -180,7 +188,7 @@
 
 void set_fpu_cwd( struct task_struct *tsk, unsigned short cwd )
 {
-	if ( HAVE_FXSR ) {
+	if ( cpu_has_fxsr ) {
 		tsk->thread.i387.fxsave.cwd = cwd;
 	} else {
 		tsk->thread.i387.fsave.cwd = ((long)cwd | 0xffff0000);
@@ -189,7 +197,7 @@
 
 void set_fpu_swd( struct task_struct *tsk, unsigned short swd )
 {
-	if ( HAVE_FXSR ) {
+	if ( cpu_has_fxsr ) {
 		tsk->thread.i387.fxsave.swd = swd;
 	} else {
 		tsk->thread.i387.fsave.swd = ((long)swd | 0xffff0000);
@@ -198,7 +206,7 @@
 
 void set_fpu_twd( struct task_struct *tsk, unsigned short twd )
 {
-	if ( HAVE_FXSR ) {
+	if ( cpu_has_fxsr ) {
 		tsk->thread.i387.fxsave.twd = twd_i387_to_fxsr(twd);
 	} else {
 		tsk->thread.i387.fsave.twd = ((long)twd | 0xffff0000);
@@ -207,7 +215,7 @@
 
 void set_fpu_mxcsr( struct task_struct *tsk, unsigned short mxcsr )
 {
-	if ( HAVE_FXSR ) {
+	if ( cpu_has_xmm ) {
 		tsk->thread.i387.fxsave.mxcsr = mxcsr;
 	}
 }
@@ -321,7 +329,7 @@
 	current->used_math = 0;
 
 	if ( HAVE_HWFP ) {
-		if ( HAVE_FXSR ) {
+		if ( cpu_has_fxsr ) {
 			return save_i387_fxsave( buf );
 		} else {
 			return save_i387_fsave( buf );
@@ -354,7 +362,7 @@
 	int err;
 
 	if ( HAVE_HWFP ) {
-		if ( HAVE_FXSR ) {
+		if ( cpu_has_fxsr ) {
 			err =  restore_i387_fxsave( buf );
 		} else {
 			err = restore_i387_fsave( buf );
@@ -387,7 +395,7 @@
 int get_fpregs( struct user_i387_struct *buf, struct task_struct *tsk )
 {
 	if ( HAVE_HWFP ) {
-		if ( HAVE_FXSR ) {
+		if ( cpu_has_fxsr ) {
 			return get_fpregs_fxsave( buf, tsk );
 		} else {
 			return get_fpregs_fsave( buf, tsk );
@@ -415,7 +423,7 @@
 int set_fpregs( struct task_struct *tsk, struct user_i387_struct *buf )
 {
 	if ( HAVE_HWFP ) {
-		if ( HAVE_FXSR ) {
+		if ( cpu_has_fxsr ) {
 			return set_fpregs_fxsave( tsk, buf );
 		} else {
 			return set_fpregs_fsave( tsk, buf );
@@ -428,9 +436,10 @@
 
 int get_fpxregs( struct user_fxsr_struct *buf, struct task_struct *tsk )
 {
-	if ( HAVE_FXSR ) {
-		__copy_to_user( (void *)buf, &tsk->thread.i387.fxsave,
-				sizeof(struct user_fxsr_struct) );
+	if ( cpu_has_fxsr ) {
+		if (__copy_to_user( (void *)buf, &tsk->thread.i387.fxsave,
+				    sizeof(struct user_fxsr_struct) ))
+			return -EFAULT;
 		return 0;
 	} else {
 		return -EIO;
@@ -439,7 +448,7 @@
 
 int set_fpxregs( struct task_struct *tsk, struct user_fxsr_struct *buf )
 {
-	if ( HAVE_FXSR ) {
+	if ( cpu_has_fxsr ) {
 		__copy_from_user( &tsk->thread.i387.fxsave, (void *)buf,
 				  sizeof(struct user_fxsr_struct) );
 		/* mxcsr bit 6 and 31-16 must be zero for security reasons */
@@ -485,7 +494,7 @@
 	fpvalid = tsk->used_math;
 	if ( fpvalid ) {
 		unlazy_fpu( tsk );
-		if ( HAVE_FXSR ) {
+		if ( cpu_has_fxsr ) {
 			copy_fpu_fxsave( tsk, fpu );
 		} else {
 			copy_fpu_fsave( tsk, fpu );
@@ -500,7 +509,7 @@
 	int fpvalid;
 	struct task_struct *tsk = current;
 
-	fpvalid = tsk->used_math && HAVE_FXSR;
+	fpvalid = tsk->used_math && cpu_has_fxsr;
 	if ( fpvalid ) {
 		unlazy_fpu( tsk );
 		memcpy( fpu, &tsk->thread.i387.fxsave,
diff -u --recursive --new-file v2.4.0/linux/arch/i386/kernel/setup.c linux/arch/i386/kernel/setup.c
--- v2.4.0/linux/arch/i386/kernel/setup.c	Sun Dec 31 10:26:18 2000
+++ linux/arch/i386/kernel/setup.c	Thu Jan 11 17:35:25 2001
@@ -147,6 +147,7 @@
 extern unsigned long cpu_khz;
 
 static int disable_x86_serial_nr __initdata = 1;
+static int disable_x86_fxsr __initdata = 0;
 
 /*
  * This is set up by the setup-routine at boot-time
@@ -518,7 +519,7 @@
 
 		e820.nr_map = 0;
 		add_memory_region(0, LOWMEMSIZE(), E820_RAM);
-		add_memory_region(HIGH_MEMORY, (mem_size << 10) - HIGH_MEMORY, E820_RAM);
+		add_memory_region(HIGH_MEMORY, mem_size << 10, E820_RAM);
   	}
 	printk("BIOS-provided physical RAM map:\n");
 	print_memory_map(who);
@@ -1796,6 +1797,13 @@
 }
 __setup("serialnumber", x86_serial_nr_setup);
 
+int __init x86_fxsr_setup(char * s)
+{
+	disable_x86_fxsr = 1;
+	return 1;
+}
+__setup("nofxsr", x86_fxsr_setup);
+
 
 /* Standard macro to see if a specific flag is changeable */
 static inline int flag_is_changeable_p(u32 flag)
@@ -2004,6 +2012,12 @@
 	if ( tsc_disable )
 		clear_bit(X86_FEATURE_TSC, &c->x86_capability);
 #endif
+
+	/* FXSR disabled? */
+	if (disable_x86_fxsr) {
+		clear_bit(X86_FEATURE_FXSR, &c->x86_capability);
+		clear_bit(X86_FEATURE_XMM, &c->x86_capability);
+	}
 
 	/* Disable the PN if appropriate */
 	squash_the_stupid_serial_number(c);
diff -u --recursive --new-file v2.4.0/linux/arch/i386/lib/mmx.c linux/arch/i386/lib/mmx.c
--- v2.4.0/linux/arch/i386/lib/mmx.c	Wed Nov  8 17:09:49 2000
+++ linux/arch/i386/lib/mmx.c	Thu Jan 11 17:42:24 2001
@@ -2,6 +2,8 @@
 #include <linux/string.h>
 #include <linux/sched.h>
 
+#include <asm/i387.h>
+
 /*
  *	MMX 3DNow! library helper functions
  *
@@ -26,13 +28,7 @@
 	void *p=to;
 	int i= len >> 6;	/* len/64 */
 
-	if (!(current->flags & PF_USEDFPU))
-		clts();
-	else
-	{
-		__asm__ __volatile__ ( " fnsave %0; fwait\n"::"m"(current->thread.i387));
-		current->flags &= ~PF_USEDFPU;
-	}
+	kernel_fpu_begin();
 
 	__asm__ __volatile__ (
 		"1: prefetch (%0)\n"		/* This set is 28 bytes */
@@ -88,20 +84,15 @@
 	 *	Now do the tail of the block
 	 */
 	__memcpy(to, from, len&63);
-	stts();
+	kernel_fpu_end();
 	return p;
 }
 
 static void fast_clear_page(void *page)
 {
 	int i;
-	if (!(current->flags & PF_USEDFPU))
-		clts();
-	else
-	{
-		__asm__ __volatile__ ( " fnsave %0; fwait\n"::"m"(current->thread.i387));
-		current->flags &= ~PF_USEDFPU;
-	}
+
+	kernel_fpu_begin();
 	
 	__asm__ __volatile__ (
 		"  pxor %%mm0, %%mm0\n" : :
@@ -127,19 +118,14 @@
 	__asm__ __volatile__ (
 		"  sfence \n" : :
 	);
-	stts();
+	kernel_fpu_end();
 }
 
 static void fast_copy_page(void *to, void *from)
 {
 	int i;
-	if (!(current->flags & PF_USEDFPU))
-		clts();
-	else
-	{
-		__asm__ __volatile__ ( " fnsave %0; fwait\n"::"m"(current->thread.i387));
-		current->flags &= ~PF_USEDFPU;
-	}
+
+	kernel_fpu_begin();
 
 	/* maybe the prefetch stuff can go before the expensive fnsave...
 	 * but that is for later. -AV
@@ -199,7 +185,7 @@
 	__asm__ __volatile__ (
 		"  sfence \n" : :
 	);
-	stts();
+	kernel_fpu_end();
 }
 
 /*
diff -u --recursive --new-file v2.4.0/linux/drivers/isdn/hisax/Makefile linux/drivers/isdn/hisax/Makefile
--- v2.4.0/linux/drivers/isdn/hisax/Makefile	Fri Dec 29 14:40:54 2000
+++ linux/drivers/isdn/hisax/Makefile	Mon Jan  8 15:06:01 2001
@@ -34,8 +34,8 @@
 hisax-objs-$(CONFIG_HISAX_ASUSCOM) += asuscom.o isac.o arcofi.o hscx.o
 hisax-objs-$(CONFIG_HISAX_TELEINT) += teleint.o isac.o arcofi.o hfc_2bs0.o
 hisax-objs-$(CONFIG_HISAX_SEDLBAUER) += sedlbauer.o isac.o arcofi.o hscx.o isar.o
-hisax-objs-$(CONFIG_HISAX_SPORTSTER) += sportster.o isac.o arcofi.o hfc_2bs0.o
-hisax-objs-$(CONFIG_HISAX_MIC) += mic.o isac.o arcofi.o hfc_2bs0.o
+hisax-objs-$(CONFIG_HISAX_SPORTSTER) += sportster.o isac.o arcofi.o hscx.o
+hisax-objs-$(CONFIG_HISAX_MIC) += mic.o isac.o arcofi.o hscx.o
 hisax-objs-$(CONFIG_HISAX_NETJET) += nj_s.o netjet.o isac.o arcofi.o
 hisax-objs-$(CONFIG_HISAX_NETJET_U) += nj_u.o netjet.o icc.o
 hisax-objs-$(CONFIG_HISAX_HFCS) += hfcscard.o hfc_2bds0.o
diff -u --recursive --new-file v2.4.0/linux/drivers/isdn/hisax/isdnl3.c linux/drivers/isdn/hisax/isdnl3.c
--- v2.4.0/linux/drivers/isdn/hisax/isdnl3.c	Tue Nov 28 21:43:13 2000
+++ linux/drivers/isdn/hisax/isdnl3.c	Mon Jan  8 15:19:34 2001
@@ -566,7 +566,7 @@
 			} else {
 				struct sk_buff *skb = arg;
 
-				skb_queue_head(&st->l3.squeue, skb);
+				skb_queue_tail(&st->l3.squeue, skb);
 				FsmEvent(&st->l3.l3m, EV_ESTABLISH_REQ, NULL); 
 			}
 			break;
diff -u --recursive --new-file v2.4.0/linux/drivers/isdn/hisax/md5sums.asc linux/drivers/isdn/hisax/md5sums.asc
--- v2.4.0/linux/drivers/isdn/hisax/md5sums.asc	Thu Jan  4 13:20:17 2001
+++ linux/drivers/isdn/hisax/md5sums.asc	Wed Jan 10 14:12:53 2001
@@ -10,7 +10,7 @@
 ca7bd9bac39203f3074f3f093948cc3c  isac.c
 a2ad619fd404b3149099a2984de9d23c  isdnl1.c
 d2a78e407f3d94876deac160c6f9aae6  isdnl2.c
-a109841c2e75b11fc8ef2c8718e24c3e  isdnl3.c
+e7932ca7ae39c497c17f13a2e1434fcd  isdnl3.c
 afb5f2f4ac296d6de45c856993b161e1  tei.c
 00023e2a482cb86a26ea870577ade5d6  callc.c
 a1834e9b2ec068440cff2e899eff4710  cert.c
@@ -25,9 +25,9 @@
 Version: 2.6.3i
 Charset: noconv
 
-iQCVAwUBOlMTgDpxHvX/mS9tAQFSbgP/W9y6tnnWHTRLGqyr3EY1OHZiQXERkAAu
-hp+Y8PIoX1GgAh4yZ7xhYwUsk6y0z5USdGuhC9ZHh+oZd57lPsJMnhkEZR5BVsYT
-r7jHwelP527+QCLkVUCHIVIWUW0ANzeZBhDV2vefkFb+gWLiZsBhaHssbcKGsMNG
-Ak4xS1ByqsM=
-=lsIJ
+iQCVAwUBOlxeLTpxHvX/mS9tAQH6RwP8DhyvqAnXFV6WIGi16iQ3vKikkPoqnDQs
+GEn5uCW0dPYKlwthD2Grj/JbMYZhOmCFuDxF7ufJnjTSDe/D8XNe2wngxzAiwcIe
+WjCrT8X95cuP3HZHscbFTEinVV0GAnoI0ZEgs5eBDhVHDqILLYMaTFBQaRH3jgXc
+i5VH88jPfUM=
+=qc+J
 -----END PGP SIGNATURE-----
diff -u --recursive --new-file v2.4.0/linux/drivers/isdn/isdn_common.c linux/drivers/isdn/isdn_common.c
--- v2.4.0/linux/drivers/isdn/isdn_common.c	Tue Jan  2 16:45:38 2001
+++ linux/drivers/isdn/isdn_common.c	Mon Jan  8 15:06:01 2001
@@ -1512,7 +1512,7 @@
 					int i;
 
 					if ((ret = verify_area(VERIFY_READ, (void *) arg,
-					(ISDN_MODEM_NUMREG + ISDN_MSNLEN)
+					(ISDN_MODEM_NUMREG + ISDN_MSNLEN + ISDN_LMSNLEN)
 						   * ISDN_MAX_CHANNELS)))
 						return ret;
 
@@ -1521,6 +1521,9 @@
 						     ISDN_MODEM_NUMREG))
 							return -EFAULT;
 						p += ISDN_MODEM_NUMREG;
+						if (copy_from_user(dev->mdm.info[i].emu.plmsn, p, ISDN_LMSNLEN))
+							return -EFAULT;
+						p += ISDN_LMSNLEN;
 						if (copy_from_user(dev->mdm.info[i].emu.pmsn, p, ISDN_MSNLEN))
 							return -EFAULT;
 						p += ISDN_MSNLEN;
diff -u --recursive --new-file v2.4.0/linux/drivers/isdn/isdn_net.c linux/drivers/isdn/isdn_net.c
--- v2.4.0/linux/drivers/isdn/isdn_net.c	Fri Dec 29 14:07:22 2000
+++ linux/drivers/isdn/isdn_net.c	Mon Jan  8 15:06:01 2001
@@ -2325,6 +2325,7 @@
 	memset(netdev, 0, sizeof(isdn_net_dev));
 	if (!(netdev->local = (isdn_net_local *) kmalloc(sizeof(isdn_net_local), GFP_KERNEL))) {
 		printk(KERN_WARNING "isdn_net: Could not allocate device locals\n");
+		kfree(netdev);
 		return NULL;
 	}
 	memset(netdev->local, 0, sizeof(isdn_net_local));
diff -u --recursive --new-file v2.4.0/linux/drivers/isdn/isdn_ppp.c linux/drivers/isdn/isdn_ppp.c
--- v2.4.0/linux/drivers/isdn/isdn_ppp.c	Tue Nov 28 21:43:13 2000
+++ linux/drivers/isdn/isdn_ppp.c	Mon Jan  8 15:20:19 2001
@@ -1131,9 +1131,9 @@
 			proto = PPP_IPX;	/* untested */
 			break;
 		default:
-			dev_kfree_skb(skb);
 			printk(KERN_ERR "isdn_ppp: skipped unsupported protocol: %#x.\n", 
 			       skb->protocol);
+			dev_kfree_skb(skb);
 			return 0;
 	}
 
diff -u --recursive --new-file v2.4.0/linux/drivers/net/3c59x.c linux/drivers/net/3c59x.c
--- v2.4.0/linux/drivers/net/3c59x.c	Tue Nov 14 11:34:25 2000
+++ linux/drivers/net/3c59x.c	Sat Jan  6 09:27:42 2001
@@ -118,6 +118,14 @@
    LK1.1.11 13 Nov 2000 andrewm
     - Dump MOD_INC/DEC_USE_COUNT, use SET_MODULE_OWNER
 
+   LK1.1.12 1 Jan 2001 andrewm
+    - Call pci_enable_device before we request our IRQ (Tobias Ringstrom)
+    - Add 3c590 PCI latency timer hack to vortex_probe1 (from 0.99Ra)
+    - Added extended wait_for_completion for the 3c905CX.
+    - Look for an MII on PHY index 24 first (3c905CX oddity).
+    - Add HAS_NWAY to 3cSOHO100-TX (Brett Frankenberger)
+    - Don't free skbs we don't own on oom path in vortex_open().
+
     - See http://www.uow.edu.au/~andrewm/linux/#3c59x-2.3 for more details.
     - Also see Documentation/networking/vortex.txt
 */
@@ -203,7 +211,7 @@
 #include <linux/delay.h>
 
 static char version[] __devinitdata =
-"3c59x.c:LK1.1.11 13 Nov 2000  Donald Becker and others. http://www.scyld.com/network/vortex.html " "$Revision: 1.102.2.46 $\n";
+"3c59x.c:LK1.1.12 06 Jan 2000  Donald Becker and others. http://www.scyld.com/network/vortex.html " "$Revision: 1.102.2.46 $\n";
 
 MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
 MODULE_DESCRIPTION("3Com 3c59x/3c90x/3c575 series Vortex/Boomerang/Cyclone driver");
@@ -424,7 +432,7 @@
 	 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE, 128, },
 
 	{"3cSOHO100-TX Hurricane",
-	 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE, 128, },
+	 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY, 128, },
 	{"3c555 Laptop Hurricane",
 	 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|EEPROM_8BIT, 128, },
 	{"3c556 Laptop Tornado",
@@ -843,10 +851,15 @@
 {
 	int rc;
 
-	rc = vortex_probe1 (pdev, pci_resource_start (pdev, 0), pdev->irq,
-			    ent->driver_data, vortex_cards_found);
-	if (rc == 0)
-		vortex_cards_found++;
+	/* wake up and enable device */		
+	if (pci_enable_device (pdev)) {
+		rc = -EIO;
+	} else {
+		rc = vortex_probe1 (pdev, pci_resource_start (pdev, 0), pdev->irq,
+				    ent->driver_data, vortex_cards_found);
+		if (rc == 0)
+			vortex_cards_found++;
+	}
 	return rc;
 }
 
@@ -863,7 +876,7 @@
 	struct vortex_private *vp;
 	int option;
 	unsigned int eeprom[0x40], checksum = 0;		/* EEPROM contents */
-	int i;
+	int i, step;
 	struct net_device *dev;
 	static int printed_version;
 	int retval;
@@ -889,7 +902,6 @@
 	       vci->name,
 	       ioaddr);
 
-	/* private struct aligned and zeroed by init_etherdev */
 	vp = dev->priv;
 	dev->base_addr = ioaddr;
 	dev->irq = irq;
@@ -908,19 +920,29 @@
 	if (pdev) {
 		/* EISA resources already marked, so only PCI needs to do this here */
 		/* Ignore return value, because Cardbus drivers already allocate for us */
-		if (request_region(ioaddr, vci->io_size, dev->name) != NULL) {
+		if (request_region(ioaddr, vci->io_size, dev->name) != NULL)
 			vp->must_free_region = 1;
-		}
-
-		/* wake up and enable device */		
-		if (pci_enable_device (pdev)) {
-			retval = -EIO;
-			goto free_region;
-		}
 
 		/* enable bus-mastering if necessary */		
 		if (vci->flags & PCI_USES_MASTER)
 			pci_set_master (pdev);
+
+		if (vci->drv_flags & IS_VORTEX) {
+			u8 pci_latency;
+			u8 new_latency = 248;
+
+			/* Check the PCI latency value.  On the 3c590 series the latency timer
+			   must be set to the maximum value to avoid data corruption that occurs
+			   when the timer expires during a transfer.  This bug exists the Vortex
+			   chip only. */
+			pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency);
+			if (pci_latency < new_latency) {
+				printk(KERN_INFO "%s: Overriding PCI latency"
+					" timer (CFLT) setting of %d, new value is %d.\n",
+					dev->name, pci_latency, new_latency);
+					pci_write_config_byte(pdev, PCI_LATENCY_TIMER, new_latency);
+			}
+		}
 	}
 
 	spin_lock_init(&vp->lock);
@@ -1025,6 +1047,13 @@
 			   dev->irq);
 #endif
 
+	EL3WINDOW(4);
+	step = (inb(ioaddr + Wn4_NetDiag) & 0x1e) >> 1;
+	printk(KERN_INFO "  product code '%c%c' rev %02x.%d date %02d-"
+		   "%02d-%02d\n", eeprom[6]&0xff, eeprom[6]>>8, eeprom[0x14],
+		   step, (eeprom[4]>>5) & 15, eeprom[4] & 31, eeprom[4]>>9);
+
+
 	if (pdev && vci->drv_flags & HAS_CB_FNS) {
 		unsigned long fn_st_addr;			/* Cardbus function status space */
 		unsigned short n;
@@ -1089,8 +1118,19 @@
 		mii_preamble_required++;
 		mii_preamble_required++;
 		mdio_read(dev, 24, 1);
-		for (phy = 1; phy <= 32 && phy_idx < sizeof(vp->phys); phy++) {
-			int mii_status, phyx = phy & 0x1f;
+		for (phy = 0; phy < 32 && phy_idx < 1; phy++) {
+			int mii_status, phyx;
+
+			/*
+			 * For the 3c905CX we look at index 24 first, because it bogusly
+			 * reports an external PHY at all indices
+			 */
+			if (phy == 0)
+				phyx = 24;
+			else if (phy <= 24)
+				phyx = phy - 1;
+			else
+				phyx = phy;
 			mii_status = mdio_read(dev, phyx, 1);
 			if (mii_status  &&  mii_status != 0xffff) {
 				vp->phys[phy_idx++] = phyx;
@@ -1135,12 +1175,13 @@
 	dev->set_multicast_list = set_rx_mode;
 	dev->tx_timeout = vortex_tx_timeout;
 	dev->watchdog_timeo = (watchdog * HZ) / 1000;
-
+//	publish_netdev(dev);
 	return 0;
 
 free_region:
 	if (vp->must_free_region)
 		release_region(ioaddr, vci->io_size);
+//	withdraw_netdev(dev);
 	unregister_netdev(dev);
 	kfree (dev);
 	printk(KERN_ERR PFX "vortex_probe1 fails.  Returns %d\n", retval);
@@ -1150,13 +1191,23 @@
 
 static void wait_for_completion(struct net_device *dev, int cmd)
 {
-	int i = 4000;
+	int i;
 
 	outw(cmd, dev->base_addr + EL3_CMD);
-	while (--i > 0) {
+	for (i = 0; i < 2000; i++) {
 		if (!(inw(dev->base_addr + EL3_STATUS) & CmdInProgress))
 			return;
 	}
+
+	/* OK, that didn't work.  Do it the slow way.  One second */
+	for (i = 0; i < 100000; i++) {
+		if (!(inw(dev->base_addr + EL3_STATUS) & CmdInProgress)) {
+			printk(KERN_INFO "%s: command 0x%04x took %d usecs! Please tell andrewm@uow.edu.au\n",
+					   dev->name, cmd, i * 10);
+			return;
+		}
+		udelay(10);
+	}
 	printk(KERN_ERR "%s: command 0x%04x did not complete! Status=0x%x\n",
 			   dev->name, cmd, inw(dev->base_addr + EL3_STATUS));
 }
@@ -1331,6 +1382,7 @@
 	set_rx_mode(dev);
 	outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
 
+//	wait_for_completion(dev, SetTxStart|0x07ff);
 	outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
 	outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
 	/* Allow status bits to be seen. */
@@ -1384,7 +1436,8 @@
 		}
 		if (i != RX_RING_SIZE) {
 			int j;
-			for (j = 0; j < RX_RING_SIZE; j++) {
+			printk(KERN_EMERG "%s: no memory for rx ring\n", dev->name);
+			for (j = 0; j < i; j++) {
 				if (vp->rx_skbuff[j]) {
 					dev_kfree_skb(vp->rx_skbuff[j]);
 					vp->rx_skbuff[j] = 0;
@@ -1532,7 +1585,10 @@
 	printk(KERN_ERR "%s: transmit timed out, tx_status %2.2x status %4.4x.\n",
 		   dev->name, inb(ioaddr + TxStatus),
 		   inw(ioaddr + EL3_STATUS));
-
+	EL3WINDOW(4);
+	printk(KERN_ERR "  diagnostics: net %04x media %04x dma %8.8x.\n",
+		   inw(ioaddr + Wn4_NetDiag), inw(ioaddr + Wn4_Media),
+		   inl(ioaddr + PktStatus));
 	/* Slight code bloat to be user friendly. */
 	if ((inb(ioaddr + TxStatus) & 0x88) == 0x88)
 		printk(KERN_ERR "%s: Transmitter encountered 16 collisions --"
@@ -1663,6 +1719,12 @@
 			   dev->name, fifo_diag);
 		/* Adapter failure requires Tx/Rx reset and reinit. */
 		if (vp->full_bus_master_tx) {
+			int bus_status = inl(ioaddr + PktStatus);
+			/* 0x80000000 PCI master abort. */
+			/* 0x40000000 PCI target abort. */
+			if (vortex_debug)
+				printk(KERN_ERR "%s: PCI bus error, bus status %8.8x\n", dev->name, bus_status);
+
 			/* In this case, blow the card away */
 			vortex_down(dev);
 			wait_for_completion(dev, TotalReset | 0xff);
diff -u --recursive --new-file v2.4.0/linux/drivers/net/Makefile linux/drivers/net/Makefile
--- v2.4.0/linux/drivers/net/Makefile	Thu Jan  4 13:00:55 2001
+++ linux/drivers/net/Makefile	Sat Jan  6 19:45:14 2001
@@ -26,7 +26,7 @@
   obj-$(CONFIG_ISDN) += slhc.o
 endif
 
-subdir-$(CONFIG_PCMCIA) += pcmcia
+subdir-$(CONFIG_NET_PCMCIA) += pcmcia
 subdir-$(CONFIG_TULIP) += tulip
 subdir-$(CONFIG_IRDA) += irda
 subdir-$(CONFIG_TR) += tokenring
diff -u --recursive --new-file v2.4.0/linux/drivers/net/depca.c linux/drivers/net/depca.c
--- v2.4.0/linux/drivers/net/depca.c	Mon Oct 23 15:51:36 2000
+++ linux/drivers/net/depca.c	Mon Jan  8 09:09:36 2001
@@ -1817,7 +1817,9 @@
   ManCode[5]='\0';
 
   for (i=0;(*signatures[i] != '\0') && (*name == '\0');i++) {
-    if (strstr(ManCode, signatures[i]) != NULL) {
+    const char * volatile lhs = ManCode;
+    const char * volatile rhs = signatures[i];		/* egcs-1.1.2 bug */
+    if (strstr(lhs, rhs) != NULL) {
       strcpy(name,ManCode);
       status = 1;
     }
diff -u --recursive --new-file v2.4.0/linux/drivers/net/dmfe.c linux/drivers/net/dmfe.c
--- v2.4.0/linux/drivers/net/dmfe.c	Tue Dec  5 12:29:38 2000
+++ linux/drivers/net/dmfe.c	Mon Jan  8 09:09:36 2001
@@ -1596,10 +1596,10 @@
 		break;
 	}
 
-	rc = pci_register_driver(&dmfe_driver);
+	rc = pci_module_init(&dmfe_driver);
 	if (rc < 0)
 		return rc;
-	if (rc > 0) {
+	if (rc >= 0) {
 		printk (KERN_INFO "Davicom DM91xx net driver loaded, version "
 			DMFE_VERSION "\n");
 		return 0;
diff -u --recursive --new-file v2.4.0/linux/drivers/scsi/megaraid.c linux/drivers/scsi/megaraid.c
--- v2.4.0/linux/drivers/scsi/megaraid.c	Wed Dec  6 12:06:18 2000
+++ linux/drivers/scsi/megaraid.c	Tue Jan  9 10:40:43 2001
@@ -149,7 +149,6 @@
 #include <linux/version.h>
 
 #ifdef MODULE
-#include <linux/modversions.h>
 #include <linux/module.h>
 
 char kernel_version[] = UTS_RELEASE;
diff -u --recursive --new-file v2.4.0/linux/drivers/scsi/ppa.c linux/drivers/scsi/ppa.c
--- v2.4.0/linux/drivers/scsi/ppa.c	Thu Jan  4 13:00:55 2001
+++ linux/drivers/scsi/ppa.c	Tue Jan  9 10:40:03 2001
@@ -222,8 +222,8 @@
 	    printk("  supported by the imm (ZIP Plus) driver. If the\n");
 	    printk("  cable is marked with \"AutoDetect\", this is what has\n");
 	    printk("  happened.\n");
-	    return 0;
 	    spin_lock_irq(&io_request_lock);
+	    return 0;
 	}
 	try_again = 1;
 	goto retry_entry;
diff -u --recursive --new-file v2.4.0/linux/fs/buffer.c linux/fs/buffer.c
--- v2.4.0/linux/fs/buffer.c	Wed Jan  3 20:45:26 2001
+++ linux/fs/buffer.c	Sun Jan  7 19:47:32 2001
@@ -1151,7 +1151,7 @@
 	/* grab the lru lock here to block bdflush. */
 	spin_lock(&lru_list_lock);
 	write_lock(&hash_table_lock);
-	if (!atomic_dec_and_test(&buf->b_count) || buffer_locked(buf))
+	if (!atomic_dec_and_test(&buf->b_count) || buffer_locked(buf) || buffer_protected(buf))
 		goto in_use;
 	__hash_unlink(buf);
 	remove_inode_queue(buf);
diff -u --recursive --new-file v2.4.0/linux/fs/exec.c linux/fs/exec.c
--- v2.4.0/linux/fs/exec.c	Wed Jan  3 20:45:26 2001
+++ linux/fs/exec.c	Mon Jan  8 13:31:56 2001
@@ -407,6 +407,7 @@
 		/* Add it to the list of mm's */
 		spin_lock(&mmlist_lock);
 		list_add(&mm->mmlist, &init_mm.mmlist);
+		mmlist_nr++;
 		spin_unlock(&mmlist_lock);
 
 		task_lock(current);
diff -u --recursive --new-file v2.4.0/linux/fs/nfs/flushd.c linux/fs/nfs/flushd.c
--- v2.4.0/linux/fs/nfs/flushd.c	Wed Jun 21 07:25:17 2000
+++ linux/fs/nfs/flushd.c	Wed Jan 10 14:18:29 2001
@@ -71,18 +71,17 @@
 	int			status = 0;
 
 	dprintk("NFS: writecache_init\n");
+
+	/* Create the RPC task */
+	if (!(task = rpc_new_task(server->client, NULL, RPC_TASK_ASYNC)))
+		return -ENOMEM;
+
 	spin_lock(&nfs_flushd_lock);
 	cache = server->rw_requests;
 
 	if (cache->task)
 		goto out_unlock;
 
-	/* Create the RPC task */
-	status = -ENOMEM;
-	task = rpc_new_task(server->client, NULL, RPC_TASK_ASYNC);
-	if (!task)
-		goto out_unlock;
-
 	task->tk_calldata = server;
 
 	cache->task = task;
@@ -99,6 +98,7 @@
 	return 0;
  out_unlock:
 	spin_unlock(&nfs_flushd_lock);
+	rpc_release_task(task);
 	return status;
 }
 
@@ -195,7 +195,9 @@
 	if (*q) {
 		*q = inode->u.nfs_i.hash_next;
 		NFS_FLAGS(inode) &= ~NFS_INO_FLUSH;
+		spin_unlock(&nfs_flushd_lock);
 		iput(inode);
+		return;
 	}
  out:
 	spin_unlock(&nfs_flushd_lock);
diff -u --recursive --new-file v2.4.0/linux/fs/ramfs/inode.c linux/fs/ramfs/inode.c
--- v2.4.0/linux/fs/ramfs/inode.c	Fri Dec 29 19:26:31 2000
+++ linux/fs/ramfs/inode.c	Fri Jan  5 23:06:19 2001
@@ -81,6 +81,7 @@
 static int ramfs_writepage(struct page *page)
 {
 	SetPageDirty(page);
+	UnlockPage(page);
 	return 0;
 }
 
diff -u --recursive --new-file v2.4.0/linux/include/asm-i386/bugs.h linux/include/asm-i386/bugs.h
--- v2.4.0/linux/include/asm-i386/bugs.h	Thu Jan  4 14:50:45 2001
+++ linux/include/asm-i386/bugs.h	Thu Jan 11 17:41:26 2001
@@ -76,26 +76,23 @@
 	}
 
 /* Enable FXSR and company _before_ testing for FP problems. */
-#if defined(CONFIG_X86_FXSR) || defined(CONFIG_X86_RUNTIME_FXSR)
 	/*
 	 * Verify that the FXSAVE/FXRSTOR data will be 16-byte aligned.
 	 */
-	if (offsetof(struct task_struct, thread.i387.fxsave) & 15)
-		panic("Kernel compiled for PII/PIII+ with FXSR, data not 16-byte aligned!");
-
+	if (offsetof(struct task_struct, thread.i387.fxsave) & 15) {
+		extern void __buggy_fxsr_alignment(void);
+		__buggy_fxsr_alignment();
+	}
 	if (cpu_has_fxsr) {
 		printk(KERN_INFO "Enabling fast FPU save and restore... ");
 		set_in_cr4(X86_CR4_OSFXSR);
 		printk("done.\n");
 	}
-#endif
-#ifdef CONFIG_X86_XMM
 	if (cpu_has_xmm) {
 		printk(KERN_INFO "Enabling unmasked SIMD FPU exception support... ");
 		set_in_cr4(X86_CR4_OSXMMEXCPT);
 		printk("done.\n");
 	}
-#endif
 
 	/* Test for the divl bug.. */
 	__asm__("fninit\n\t"
@@ -202,14 +199,6 @@
 	    && boot_cpu_data.x86_model == 2
 	    && (boot_cpu_data.x86_mask < 6 || boot_cpu_data.x86_mask == 11))
 		panic("Kernel compiled for PMMX+, assumes a local APIC without the read-before-write bug!");
-#endif
-
-/*
- * If we configured ourselves for FXSR, we'd better have it.
- */
-#ifdef CONFIG_X86_FXSR
-	if (!cpu_has_fxsr)
-		panic("Kernel compiled for PII/PIII+, requires FXSR feature!");
 #endif
 }
 
diff -u --recursive --new-file v2.4.0/linux/include/asm-i386/i387.h linux/include/asm-i386/i387.h
--- v2.4.0/linux/include/asm-i386/i387.h	Thu Jan  4 14:52:01 2001
+++ linux/include/asm-i386/i387.h	Thu Jan 11 17:46:51 2001
@@ -23,6 +23,10 @@
 extern void save_init_fpu( struct task_struct *tsk );
 extern void restore_fpu( struct task_struct *tsk );
 
+extern void kernel_fpu_begin(void);
+#define kernel_fpu_end() stts()
+
+
 #define unlazy_fpu( tsk ) do { \
 	if ( tsk->flags & PF_USEDFPU ) \
 		save_init_fpu( tsk ); \
@@ -50,10 +54,8 @@
 extern void set_fpu_mxcsr( struct task_struct *tsk, unsigned short mxcsr );
 
 #define load_mxcsr( val ) do { \
-	if ( cpu_has_xmm ) { \
-		unsigned long __mxcsr = ((unsigned long)(val) & 0xffff); \
-		asm volatile( "ldmxcsr %0" : : "m" (__mxcsr) ); \
-	} \
+	unsigned long __mxcsr = ((unsigned long)(val) & 0xffbf); \
+	asm volatile( "ldmxcsr %0" : : "m" (__mxcsr) ); \
 } while (0)
 
 /*
diff -u --recursive --new-file v2.4.0/linux/include/asm-i386/pgtable.h linux/include/asm-i386/pgtable.h
--- v2.4.0/linux/include/asm-i386/pgtable.h	Thu Jan  4 14:50:46 2001
+++ linux/include/asm-i386/pgtable.h	Thu Jan 11 17:45:39 2001
@@ -140,7 +140,11 @@
 #define VMALLOC_START	(((unsigned long) high_memory + 2*VMALLOC_OFFSET-1) & \
 						~(VMALLOC_OFFSET-1))
 #define VMALLOC_VMADDR(x) ((unsigned long)(x))
-#define VMALLOC_END	(FIXADDR_START)
+#if CONFIG_HIGHMEM
+# define VMALLOC_END	(PKMAP_BASE-2*PAGE_SIZE)
+#else
+# define VMALLOC_END	(FIXADDR_START-2*PAGE_SIZE)
+#endif
 
 /*
  * The 4MB page is guessing..  Detailed in the infamous "Chapter H"
diff -u --recursive --new-file v2.4.0/linux/include/asm-i386/system.h linux/include/asm-i386/system.h
--- v2.4.0/linux/include/asm-i386/system.h	Thu Jan  4 14:50:46 2001
+++ linux/include/asm-i386/system.h	Thu Jan 11 17:45:39 2001
@@ -267,15 +267,8 @@
  * I expect future Intel CPU's to have a weaker ordering,
  * but I'd also expect them to finally get their act together
  * and add some real memory barriers if so.
- *
- * The Pentium III does add a real memory barrier with the
- * sfence instruction, so we use that where appropriate.
  */
-#ifndef CONFIG_X86_XMM
 #define mb() 	__asm__ __volatile__ ("lock; addl $0,0(%%esp)": : :"memory")
-#else
-#define mb()	__asm__ __volatile__ ("sfence": : :"memory")
-#endif
 #define rmb()	mb()
 #define wmb()	__asm__ __volatile__ ("": : :"memory")
 
diff -u --recursive --new-file v2.4.0/linux/include/asm-i386/xor.h linux/include/asm-i386/xor.h
--- v2.4.0/linux/include/asm-i386/xor.h	Sun Nov 12 19:39:51 2000
+++ linux/include/asm-i386/xor.h	Mon Jan  8 13:27:56 2001
@@ -843,7 +843,7 @@
 	do {						\
 		xor_speed(&xor_block_8regs);		\
 		xor_speed(&xor_block_32regs);		\
-	        if (cpu_has_xmm)			\
+	        if (HAVE_XMM)				\
 			xor_speed(&xor_block_pIII_sse);	\
 	        if (md_cpu_has_mmx()) {			\
 	                xor_speed(&xor_block_pII_mmx);	\
@@ -855,4 +855,4 @@
    We may also be able to load into the L1 only depending on how the cpu
    deals with a load to a line that is being prefetched.  */
 #define XOR_SELECT_TEMPLATE(FASTEST) \
-	(cpu_has_xmm ? &xor_block_pIII_sse : FASTEST)
+	(HAVE_XMM ? &xor_block_pIII_sse : FASTEST)
diff -u --recursive --new-file v2.4.0/linux/include/linux/sched.h linux/include/linux/sched.h
--- v2.4.0/linux/include/linux/sched.h	Thu Jan  4 14:50:47 2001
+++ linux/include/linux/sched.h	Thu Jan 11 17:45:40 2001
@@ -219,12 +219,13 @@
 	unsigned long rss, total_vm, locked_vm;
 	unsigned long def_flags;
 	unsigned long cpu_vm_mask;
-	unsigned long swap_cnt;	/* number of pages to swap on next pass */
 	unsigned long swap_address;
 
 	/* Architecture-specific MM context */
 	mm_context_t context;
 };
+
+extern int mmlist_nr;
 
 #define INIT_MM(name) \
 {			 				\
diff -u --recursive --new-file v2.4.0/linux/include/linux/swap.h linux/include/linux/swap.h
--- v2.4.0/linux/include/linux/swap.h	Thu Jan  4 14:50:46 2001
+++ linux/include/linux/swap.h	Thu Jan 11 17:45:39 2001
@@ -107,7 +107,7 @@
 extern int page_launder(int, int);
 extern int free_shortage(void);
 extern int inactive_shortage(void);
-extern void wakeup_kswapd(int);
+extern void wakeup_kswapd(void);
 extern int try_to_free_pages(unsigned int gfp_mask);
 
 /* linux/mm/page_io.c */
diff -u --recursive --new-file v2.4.0/linux/kernel/fork.c linux/kernel/fork.c
--- v2.4.0/linux/kernel/fork.c	Wed Jan  3 20:45:26 2001
+++ linux/kernel/fork.c	Wed Jan 10 14:53:54 2001
@@ -134,7 +134,6 @@
 	mm->mmap_cache = NULL;
 	mm->map_count = 0;
 	mm->cpu_vm_mask = 0;
-	mm->swap_cnt = 0;
 	mm->swap_address = 0;
 	pprev = &mm->mmap;
 	for (mpnt = current->mm->mmap ; mpnt ; mpnt = mpnt->vm_next) {
@@ -193,6 +192,7 @@
 }
 
 spinlock_t mmlist_lock __cacheline_aligned = SPIN_LOCK_UNLOCKED;
+int mmlist_nr;
 
 #define allocate_mm()	(kmem_cache_alloc(mm_cachep, SLAB_KERNEL))
 #define free_mm(mm)	(kmem_cache_free(mm_cachep, (mm)))
@@ -246,6 +246,7 @@
 {
 	if (atomic_dec_and_lock(&mm->mm_users, &mmlist_lock)) {
 		list_del(&mm->mmlist);
+		mmlist_nr--;
 		spin_unlock(&mmlist_lock);
 		exit_mmap(mm);
 		mmdrop(mm);
@@ -326,6 +327,7 @@
 	 */
 	spin_lock(&mmlist_lock);
 	list_add(&mm->mmlist, &oldmm->mmlist);
+	mmlist_nr++;
 	spin_unlock(&mmlist_lock);
 
 	if (retval)
diff -u --recursive --new-file v2.4.0/linux/mm/filemap.c linux/mm/filemap.c
--- v2.4.0/linux/mm/filemap.c	Tue Jan  2 18:59:45 2001
+++ linux/mm/filemap.c	Wed Jan 10 14:24:32 2001
@@ -306,7 +306,7 @@
 	 */
 	age_page_up(page);
 	if (inactive_shortage() > inactive_target / 2 && free_shortage())
-			wakeup_kswapd(0);
+			wakeup_kswapd();
 not_found:
 	return page;
 }
@@ -1835,7 +1835,8 @@
 	n->vm_end = end;
 	setup_read_behavior(n, behavior);
 	n->vm_raend = 0;
-	get_file(n->vm_file);
+	if (n->vm_file)
+		get_file(n->vm_file);
 	if (n->vm_ops && n->vm_ops->open)
 		n->vm_ops->open(n);
 	lock_vma_mappings(vma);
@@ -1861,7 +1862,8 @@
 	n->vm_pgoff += (n->vm_start - vma->vm_start) >> PAGE_SHIFT;
 	setup_read_behavior(n, behavior);
 	n->vm_raend = 0;
-	get_file(n->vm_file);
+	if (n->vm_file)
+		get_file(n->vm_file);
 	if (n->vm_ops && n->vm_ops->open)
 		n->vm_ops->open(n);
 	lock_vma_mappings(vma);
@@ -1893,7 +1895,8 @@
 	right->vm_pgoff += (right->vm_start - left->vm_start) >> PAGE_SHIFT;
 	left->vm_raend = 0;
 	right->vm_raend = 0;
-	atomic_add(2, &vma->vm_file->f_count);
+	if (vma->vm_file)
+		atomic_add(2, &vma->vm_file->f_count);
 
 	if (vma->vm_ops && vma->vm_ops->open) {
 		vma->vm_ops->open(left);
diff -u --recursive --new-file v2.4.0/linux/mm/memory.c linux/mm/memory.c
--- v2.4.0/linux/mm/memory.c	Mon Jan  1 10:37:41 2001
+++ linux/mm/memory.c	Mon Jan  8 15:39:38 2001
@@ -207,7 +207,8 @@
 			
 			src_pte = pte_offset(src_pmd, address);
 			dst_pte = pte_offset(dst_pmd, address);
-			
+
+			spin_lock(&src->page_table_lock);			
 			do {
 				pte_t pte = *src_pte;
 				struct page *ptepage;
@@ -240,16 +241,21 @@
 cont_copy_pte_range:		set_pte(dst_pte, pte);
 cont_copy_pte_range_noset:	address += PAGE_SIZE;
 				if (address >= end)
-					goto out;
+					goto out_unlock;
 				src_pte++;
 				dst_pte++;
 			} while ((unsigned long)src_pte & PTE_TABLE_MASK);
+			spin_unlock(&src->page_table_lock);
 		
 cont_copy_pmd_range:	src_pmd++;
 			dst_pmd++;
 		} while ((unsigned long)src_pmd & PMD_TABLE_MASK);
 	}
 out:
+	return 0;
+
+out_unlock:
+	spin_unlock(&src->page_table_lock);
 	return 0;
 
 nomem:
diff -u --recursive --new-file v2.4.0/linux/mm/page_alloc.c linux/mm/page_alloc.c
--- v2.4.0/linux/mm/page_alloc.c	Wed Jan  3 09:59:06 2001
+++ linux/mm/page_alloc.c	Thu Jan 11 15:52:31 2001
@@ -16,6 +16,7 @@
 #include <linux/interrupt.h>
 #include <linux/pagemap.h>
 #include <linux/bootmem.h>
+#include <linux/slab.h>
 
 int nr_swap_pages;
 int nr_active_pages;
@@ -303,7 +304,7 @@
 	 * an inactive page shortage, wake up kswapd.
 	 */
 	if (inactive_shortage() > inactive_target / 2 && free_shortage())
-		wakeup_kswapd(0);
+		wakeup_kswapd();
 	/*
 	 * If we are about to get low on free pages and cleaning
 	 * the inactive_dirty pages would fix the situation,
@@ -379,7 +380,7 @@
 	 * - if we don't have __GFP_IO set, kswapd may be
 	 *   able to free some memory we can't free ourselves
 	 */
-	wakeup_kswapd(0);
+	wakeup_kswapd();
 	if (gfp_mask & __GFP_WAIT) {
 		__set_current_state(TASK_RUNNING);
 		current->policy |= SCHED_YIELD;
@@ -404,7 +405,7 @@
 	 * - we're doing a higher-order allocation
 	 * 	--> move pages to the free list until we succeed
 	 * - we're /really/ tight on memory
-	 * 	--> wait on the kswapd waitqueue until memory is freed
+	 * 	--> try to free pages ourselves with page_launder
 	 */
 	if (!(current->flags & PF_MEMALLOC)) {
 		/*
@@ -443,36 +444,23 @@
 		/*
 		 * When we arrive here, we are really tight on memory.
 		 *
-		 * We wake up kswapd and sleep until kswapd wakes us
-		 * up again. After that we loop back to the start.
-		 *
-		 * We have to do this because something else might eat
-		 * the memory kswapd frees for us and we need to be
-		 * reliable. Note that we don't loop back for higher
-		 * order allocations since it is possible that kswapd
-		 * simply cannot free a large enough contiguous area
-		 * of memory *ever*.
-		 */
-		if ((gfp_mask & (__GFP_WAIT|__GFP_IO)) == (__GFP_WAIT|__GFP_IO)) {
-			wakeup_kswapd(1);
-			memory_pressure++;
-			if (!order)
-				goto try_again;
-		/*
-		 * If __GFP_IO isn't set, we can't wait on kswapd because
-		 * kswapd just might need some IO locks /we/ are holding ...
-		 *
-		 * SUBTLE: The scheduling point above makes sure that
-		 * kswapd does get the chance to free memory we can't
-		 * free ourselves...
+		 * We try to free pages ourselves by:
+		 * 	- shrinking the i/d caches.
+		 * 	- reclaiming unused memory from the slab caches.
+		 * 	- swapping/syncing pages to disk (done by page_launder)
+		 * 	- moving clean pages from the inactive dirty list to
+		 * 	  the inactive clean list. (done by page_launder)
 		 */
-		} else if (gfp_mask & __GFP_WAIT) {
-			try_to_free_pages(gfp_mask);
-			memory_pressure++;
+		if (gfp_mask & __GFP_WAIT) {
+			shrink_icache_memory(6, gfp_mask);
+			shrink_dcache_memory(6, gfp_mask);
+			kmem_cache_reap(gfp_mask);
+
+			page_launder(gfp_mask, 1);
+
 			if (!order)
 				goto try_again;
 		}
-
 	}
 
 	/*
@@ -554,14 +542,8 @@
 
 void free_pages(unsigned long addr, unsigned long order)
 {
-	struct page *fpage;
-
-#ifdef CONFIG_DISCONTIGMEM
-	if (addr == 0) return;
-#endif
-	fpage = virt_to_page(addr);
-	if (VALID_PAGE(fpage))
-		__free_pages(fpage, order);
+	if (addr != 0)
+		__free_pages(virt_to_page(addr), order);
 }
 
 /*
diff -u --recursive --new-file v2.4.0/linux/mm/slab.c linux/mm/slab.c
--- v2.4.0/linux/mm/slab.c	Sun Oct  1 19:55:17 2000
+++ linux/mm/slab.c	Wed Jan 10 14:24:32 2001
@@ -1702,7 +1702,7 @@
  * kmem_cache_reap - Reclaim memory from caches.
  * @gfp_mask: the type of memory required.
  *
- * Called from try_to_free_page().
+ * Called from do_try_to_free_pages() and __alloc_pages()
  */
 void kmem_cache_reap (int gfp_mask)
 {
diff -u --recursive --new-file v2.4.0/linux/mm/vmscan.c linux/mm/vmscan.c
--- v2.4.0/linux/mm/vmscan.c	Wed Jan  3 20:45:26 2001
+++ linux/mm/vmscan.c	Wed Jan 10 15:04:07 2001
@@ -35,45 +35,21 @@
  * using a process that no longer actually exists (it might
  * have died while we slept).
  */
-static int try_to_swap_out(struct mm_struct * mm, struct vm_area_struct* vma, unsigned long address, pte_t * page_table, int gfp_mask)
+static void try_to_swap_out(struct mm_struct * mm, struct vm_area_struct* vma, unsigned long address, pte_t * page_table, struct page *page)
 {
 	pte_t pte;
 	swp_entry_t entry;
-	struct page * page;
-	int onlist;
-
-	pte = *page_table;
-	if (!pte_present(pte))
-		goto out_failed;
-	page = pte_page(pte);
-	if ((!VALID_PAGE(page)) || PageReserved(page))
-		goto out_failed;
-
-	if (!mm->swap_cnt)
-		return 1;
 
-	mm->swap_cnt--;
-
-	onlist = PageActive(page);
 	/* Don't look at this pte if it's been accessed recently. */
 	if (ptep_test_and_clear_young(page_table)) {
-		age_page_up(page);
-		goto out_failed;
+		page->age += PAGE_AGE_ADV;
+		if (page->age > PAGE_AGE_MAX)
+			page->age = PAGE_AGE_MAX;
+		return;
 	}
-	if (!onlist)
-		/* The page is still mapped, so it can't be freeable... */
-		age_page_down_ageonly(page);
-
-	/*
-	 * If the page is in active use by us, or if the page
-	 * is in active use by others, don't unmap it or
-	 * (worse) start unneeded IO.
-	 */
-	if (page->age > 0)
-		goto out_failed;
 
 	if (TryLockPage(page))
-		goto out_failed;
+		return;
 
 	/* From this point on, the odds are that we're going to
 	 * nuke this pte, so read and clear the pte.  This hook
@@ -87,9 +63,6 @@
 	 * Is the page already in the swap cache? If so, then
 	 * we can just drop our reference to it without doing
 	 * any IO - it's already up-to-date on disk.
-	 *
-	 * Return 0, as we didn't actually free any real
-	 * memory, and we should just continue our scan.
 	 */
 	if (PageSwapCache(page)) {
 		entry.val = page->index;
@@ -103,8 +76,7 @@
 		mm->rss--;
 		deactivate_page(page);
 		page_cache_release(page);
-out_failed:
-		return 0;
+		return;
 	}
 
 	/*
@@ -153,34 +125,20 @@
 out_unlock_restore:
 	set_pte(page_table, pte);
 	UnlockPage(page);
-	return 0;
+	return;
 }
 
-/*
- * A new implementation of swap_out().  We do not swap complete processes,
- * but only a small number of blocks, before we continue with the next
- * process.  The number of blocks actually swapped is determined on the
- * number of page faults, that this process actually had in the last time,
- * so we won't swap heavily used processes all the time ...
- *
- * Note: the priority argument is a hint on much CPU to waste with the
- *       swap block search, not a hint, of how much blocks to swap with
- *       each process.
- *
- * (C) 1993 Kai Petzke, wpp@marie.physik.tu-berlin.de
- */
-
-static inline int swap_out_pmd(struct mm_struct * mm, struct vm_area_struct * vma, pmd_t *dir, unsigned long address, unsigned long end, int gfp_mask)
+static int swap_out_pmd(struct mm_struct * mm, struct vm_area_struct * vma, pmd_t *dir, unsigned long address, unsigned long end, int count)
 {
 	pte_t * pte;
 	unsigned long pmd_end;
 
 	if (pmd_none(*dir))
-		return 0;
+		return count;
 	if (pmd_bad(*dir)) {
 		pmd_ERROR(*dir);
 		pmd_clear(dir);
-		return 0;
+		return count;
 	}
 	
 	pte = pte_offset(dir, address);
@@ -190,28 +148,33 @@
 		end = pmd_end;
 
 	do {
-		int result;
-		mm->swap_address = address + PAGE_SIZE;
-		result = try_to_swap_out(mm, vma, address, pte, gfp_mask);
-		if (result)
-			return result;
+		if (pte_present(*pte)) {
+			struct page *page = pte_page(*pte);
+
+			if (VALID_PAGE(page) && !PageReserved(page)) {
+				try_to_swap_out(mm, vma, address, pte, page);
+				if (--count)
+					break;
+			}
+		}
 		address += PAGE_SIZE;
 		pte++;
 	} while (address && (address < end));
-	return 0;
+	mm->swap_address = address + PAGE_SIZE;
+	return count;
 }
 
-static inline int swap_out_pgd(struct mm_struct * mm, struct vm_area_struct * vma, pgd_t *dir, unsigned long address, unsigned long end, int gfp_mask)
+static inline int swap_out_pgd(struct mm_struct * mm, struct vm_area_struct * vma, pgd_t *dir, unsigned long address, unsigned long end, int count)
 {
 	pmd_t * pmd;
 	unsigned long pgd_end;
 
 	if (pgd_none(*dir))
-		return 0;
+		return count;
 	if (pgd_bad(*dir)) {
 		pgd_ERROR(*dir);
 		pgd_clear(dir);
-		return 0;
+		return count;
 	}
 
 	pmd = pmd_offset(dir, address);
@@ -221,23 +184,23 @@
 		end = pgd_end;
 	
 	do {
-		int result = swap_out_pmd(mm, vma, pmd, address, end, gfp_mask);
-		if (result)
-			return result;
+		count = swap_out_pmd(mm, vma, pmd, address, end, count);
+		if (!count)
+			break;
 		address = (address + PMD_SIZE) & PMD_MASK;
 		pmd++;
 	} while (address && (address < end));
-	return 0;
+	return count;
 }
 
-static int swap_out_vma(struct mm_struct * mm, struct vm_area_struct * vma, unsigned long address, int gfp_mask)
+static int swap_out_vma(struct mm_struct * mm, struct vm_area_struct * vma, unsigned long address, int count)
 {
 	pgd_t *pgdir;
 	unsigned long end;
 
 	/* Don't swap out areas which are locked down */
 	if (vma->vm_flags & (VM_LOCKED|VM_RESERVED))
-		return 0;
+		return count;
 
 	pgdir = pgd_offset(mm, address);
 
@@ -245,18 +208,17 @@
 	if (address >= end)
 		BUG();
 	do {
-		int result = swap_out_pgd(mm, vma, pgdir, address, end, gfp_mask);
-		if (result)
-			return result;
+		count = swap_out_pgd(mm, vma, pgdir, address, end, count);
+		if (!count)
+			break;
 		address = (address + PGDIR_SIZE) & PGDIR_MASK;
 		pgdir++;
 	} while (address && (address < end));
-	return 0;
+	return count;
 }
 
-static int swap_out_mm(struct mm_struct * mm, int gfp_mask)
+static int swap_out_mm(struct mm_struct * mm, int count)
 {
-	int result = 0;
 	unsigned long address;
 	struct vm_area_struct* vma;
 
@@ -276,8 +238,8 @@
 			address = vma->vm_start;
 
 		for (;;) {
-			result = swap_out_vma(mm, vma, address, gfp_mask);
-			if (result)
+			count = swap_out_vma(mm, vma, address, count);
+			if (!count)
 				goto out_unlock;
 			vma = vma->vm_next;
 			if (!vma)
@@ -287,94 +249,63 @@
 	}
 	/* Reset to 0 when we reach the end of address space */
 	mm->swap_address = 0;
-	mm->swap_cnt = 0;
 
 out_unlock:
 	spin_unlock(&mm->page_table_lock);
-	return result;
+	return !count;
 }
 
 /*
- * Select the task with maximal swap_cnt and try to swap out a page.
  * N.B. This function returns only 0 or 1.  Return values != 1 from
  * the lower level routines result in continued processing.
  */
 #define SWAP_SHIFT 5
 #define SWAP_MIN 8
 
+static inline int swap_amount(struct mm_struct *mm)
+{
+	int nr = mm->rss >> SWAP_SHIFT;
+	return nr < SWAP_MIN ? SWAP_MIN : nr;
+}
+
 static int swap_out(unsigned int priority, int gfp_mask)
 {
 	int counter;
-	int __ret = 0;
+	int retval = 0;
+	struct mm_struct *mm = current->mm;
 
-	/* 
-	 * We make one or two passes through the task list, indexed by 
-	 * assign = {0, 1}:
-	 *   Pass 1: select the swappable task with maximal RSS that has
-	 *         not yet been swapped out. 
-	 *   Pass 2: re-assign rss swap_cnt values, then select as above.
-	 *
-	 * With this approach, there's no need to remember the last task
-	 * swapped out.  If the swap-out fails, we clear swap_cnt so the 
-	 * task won't be selected again until all others have been tried.
-	 *
-	 * Think of swap_cnt as a "shadow rss" - it tells us which process
-	 * we want to page out (always try largest first).
-	 */
-	counter = (nr_threads << SWAP_SHIFT) >> priority;
-	if (counter < 1)
-		counter = 1;
+	/* Always start by trying to penalize the process that is allocating memory */
+	if (mm)
+		retval = swap_out_mm(mm, swap_amount(mm));
 
-	for (; counter >= 0; counter--) {
+	/* Then, look at the other mm's */
+	counter = mmlist_nr >> priority;
+	do {
 		struct list_head *p;
-		unsigned long max_cnt = 0;
-		struct mm_struct *best = NULL;
-		int assign = 0;
-		int found_task = 0;
-	select:
+
 		spin_lock(&mmlist_lock);
 		p = init_mm.mmlist.next;
-		for (; p != &init_mm.mmlist; p = p->next) {
-			struct mm_struct *mm = list_entry(p, struct mm_struct, mmlist);
-	 		if (mm->rss <= 0)
-				continue;
-			found_task++;
-			/* Refresh swap_cnt? */
-			if (assign == 1) {
-				mm->swap_cnt = (mm->rss >> SWAP_SHIFT);
-				if (mm->swap_cnt < SWAP_MIN)
-					mm->swap_cnt = SWAP_MIN;
-			}
-			if (mm->swap_cnt > max_cnt) {
-				max_cnt = mm->swap_cnt;
-				best = mm;
-			}
-		}
+		if (p == &init_mm.mmlist)
+			goto empty;
+
+		/* Move it to the back of the queue.. */
+		list_del(p);
+		list_add_tail(p, &init_mm.mmlist);
+		mm = list_entry(p, struct mm_struct, mmlist);
 
-		/* Make sure it doesn't disappear */
-		if (best)
-			atomic_inc(&best->mm_users);
+		/* Make sure the mm doesn't disappear when we drop the lock.. */
+		atomic_inc(&mm->mm_users);
 		spin_unlock(&mmlist_lock);
 
-		/*
-		 * We have dropped the tasklist_lock, but we
-		 * know that "mm" still exists: we are running
-		 * with the big kernel lock, and exit_mm()
-		 * cannot race with us.
-		 */
-		if (!best) {
-			if (!assign && found_task > 0) {
-				assign = 1;
-				goto select;
-			}
-			break;
-		} else {
-			__ret = swap_out_mm(best, gfp_mask);
-			mmput(best);
-			break;
-		}
-	}
-	return __ret;
+		/* Walk about 6% of the address space each time */
+		retval |= swap_out_mm(mm, swap_amount(mm));
+		mmput(mm);
+	} while (--counter >= 0);
+	return retval;
+
+empty:
+	spin_unlock(&mmlist_lock);
+	return 0;
 }
 
 
@@ -808,6 +739,9 @@
 int inactive_shortage(void)
 {
 	int shortage = 0;
+	pg_data_t *pgdat = pgdat_list;
+
+	/* Is the inactive dirty list too small? */
 
 	shortage += freepages.high;
 	shortage += inactive_target;
@@ -818,7 +752,27 @@
 	if (shortage > 0)
 		return shortage;
 
-	return 0;
+	/* If not, do we have enough per-zone pages on the inactive list? */
+
+	shortage = 0;
+
+	do {
+		int i;
+		for(i = 0; i < MAX_NR_ZONES; i++) {
+			int zone_shortage;
+			zone_t *zone = pgdat->node_zones+ i;
+
+			zone_shortage = zone->pages_high;
+			zone_shortage -= zone->inactive_dirty_pages;
+			zone_shortage -= zone->inactive_clean_pages;
+			zone_shortage -= zone->free_pages;
+			if (zone_shortage > 0)
+				shortage += zone_shortage;
+		}
+		pgdat = pgdat->node_next;
+	} while (pgdat);
+
+	return shortage;
 }
 
 /*
@@ -833,72 +787,35 @@
  * really care about latency. In that case we don't try
  * to free too many pages.
  */
+#define DEF_PRIORITY (6)
 static int refill_inactive(unsigned int gfp_mask, int user)
 {
-	int priority, count, start_count, made_progress;
+	int count, start_count, maxtry;
 
 	count = inactive_shortage() + free_shortage();
 	if (user)
 		count = (1 << page_cluster);
 	start_count = count;
 
-	/* Always trim SLAB caches when memory gets low. */
-	kmem_cache_reap(gfp_mask);
-
-	priority = 6;
+	maxtry = 6;
 	do {
-		made_progress = 0;
-
 		if (current->need_resched) {
 			__set_current_state(TASK_RUNNING);
 			schedule();
 		}
 
-		while (refill_inactive_scan(priority, 1)) {
-			made_progress = 1;
+		while (refill_inactive_scan(DEF_PRIORITY, 1)) {
 			if (--count <= 0)
 				goto done;
 		}
 
-		/*
-		 * don't be too light against the d/i cache since
-	   	 * refill_inactive() almost never fail when there's
-	   	 * really plenty of memory free. 
-		 */
-		shrink_dcache_memory(priority, gfp_mask);
-		shrink_icache_memory(priority, gfp_mask);
+		/* If refill_inactive_scan failed, try to page stuff out.. */
+		swap_out(DEF_PRIORITY, gfp_mask);
 
-		/*
-		 * Then, try to page stuff out..
-		 */
-		while (swap_out(priority, gfp_mask)) {
-			made_progress = 1;
-			if (--count <= 0)
-				goto done;
-		}
-
-		/*
-		 * If we either have enough free memory, or if
-		 * page_launder() will be able to make enough
-		 * free memory, then stop.
-		 */
-		if (!inactive_shortage() || !free_shortage())
-			goto done;
-
-		/*
-		 * Only switch to a lower "priority" if we
-		 * didn't make any useful progress in the
-		 * last loop.
-		 */
-		if (!made_progress)
-			priority--;
-	} while (priority >= 0);
-
-	/* Always end on a refill_inactive.., may sleep... */
-	while (refill_inactive_scan(0, 1)) {
-		if (--count <= 0)
-			goto done;
-	}
+		if (--maxtry <= 0)
+				return 0;
+		
+	} while (inactive_shortage());
 
 done:
 	return (count < start_count);
@@ -922,20 +839,20 @@
 
 	/*
 	 * If needed, we move pages from the active list
-	 * to the inactive list. We also "eat" pages from
-	 * the inode and dentry cache whenever we do this.
+	 * to the inactive list.
 	 */
-	if (free_shortage() || inactive_shortage()) {
-		shrink_dcache_memory(6, gfp_mask);
-		shrink_icache_memory(6, gfp_mask);
+	if (inactive_shortage())
 		ret += refill_inactive(gfp_mask, user);
-	} else {
-		/*
-		 * Reclaim unused slab cache memory.
-		 */
+
+	/* 	
+	 * Delete pages from the inode and dentry caches and 
+	 * reclaim unused slab cache if memory is low.
+	 */
+	if (free_shortage()) {
+		shrink_dcache_memory(DEF_PRIORITY, gfp_mask);
+		shrink_icache_memory(DEF_PRIORITY, gfp_mask);
 		kmem_cache_reap(gfp_mask);
-		ret = 1;
-	}
+	} 
 
 	return ret;
 }
@@ -988,13 +905,8 @@
 		static int recalc = 0;
 
 		/* If needed, try to free some memory. */
-		if (inactive_shortage() || free_shortage()) {
-			int wait = 0;
-			/* Do we need to do some synchronous flushing? */
-			if (waitqueue_active(&kswapd_done))
-				wait = 1;
-			do_try_to_free_pages(GFP_KSWAPD, wait);
-		}
+		if (inactive_shortage() || free_shortage()) 
+			do_try_to_free_pages(GFP_KSWAPD, 0);
 
 		/*
 		 * Do some (very minimal) background scanning. This
@@ -1002,7 +914,7 @@
 		 * every minute. This clears old referenced bits
 		 * and moves unused pages to the inactive list.
 		 */
-		refill_inactive_scan(6, 0);
+		refill_inactive_scan(DEF_PRIORITY, 0);
 
 		/* Once a second, recalculate some VM stats. */
 		if (time_after(jiffies, recalc + HZ)) {
@@ -1010,11 +922,6 @@
 			recalculate_vm_stats();
 		}
 
-		/*
-		 * Wake up everybody waiting for free memory
-		 * and unplug the disk queue.
-		 */
-		wake_up_all(&kswapd_done);
 		run_task_queue(&tq_disk);
 
 		/* 
@@ -1045,33 +952,10 @@
 	}
 }
 
-void wakeup_kswapd(int block)
+void wakeup_kswapd(void)
 {
-	DECLARE_WAITQUEUE(wait, current);
-
-	if (current == kswapd_task)
-		return;
-
-	if (!block) {
-		if (waitqueue_active(&kswapd_wait))
-			wake_up(&kswapd_wait);
-		return;
-	}
-
-	/*
-	 * Kswapd could wake us up before we get a chance
-	 * to sleep, so we have to be very careful here to
-	 * prevent SMP races...
-	 */
-	__set_current_state(TASK_UNINTERRUPTIBLE);
-	add_wait_queue(&kswapd_done, &wait);
-
-	if (waitqueue_active(&kswapd_wait))
-		wake_up(&kswapd_wait);
-	schedule();
-
-	remove_wait_queue(&kswapd_done, &wait);
-	__set_current_state(TASK_RUNNING);
+	if (current != kswapd_task)
+		wake_up_process(kswapd_task);
 }
 
 /*
@@ -1096,7 +980,7 @@
 /*
  * Kreclaimd will move pages from the inactive_clean list to the
  * free list, in order to keep atomic allocations possible under
- * all circumstances. Even when kswapd is blocked on IO.
+ * all circumstances.
  */
 int kreclaimd(void *unused)
 {
diff -u --recursive --new-file v2.4.0/linux/net/ipv4/igmp.c linux/net/ipv4/igmp.c
--- v2.4.0/linux/net/ipv4/igmp.c	Thu Sep  7 08:32:01 2000
+++ linux/net/ipv4/igmp.c	Tue Jan  9 10:54:57 2001
@@ -504,8 +504,8 @@
 	im->timer.function=&igmp_timer_expire;
 	im->unsolicit_count = IGMP_Unsolicited_Report_Count;
 	im->reporter = 0;
-	im->loaded = 0;
 #endif
+	im->loaded = 0;
 	write_lock_bh(&in_dev->lock);
 	im->next=in_dev->mc_list;
 	in_dev->mc_list=im;
diff -u --recursive --new-file v2.4.0/linux/net/ipv4/tcp.c linux/net/ipv4/tcp.c
--- v2.4.0/linux/net/ipv4/tcp.c	Tue Nov 28 21:53:45 2000
+++ linux/net/ipv4/tcp.c	Wed Jan 10 14:12:12 2001
@@ -954,7 +954,7 @@
 			 */
 			skb = sk->write_queue.prev;
 			if (tp->send_head &&
-			    (mss_now - skb->len) > 0) {
+			    (mss_now > skb->len)) {
 				copy = skb->len;
 				if (skb_tailroom(skb) > 0) {
 					int last_byte_was_odd = (copy % 4);
diff -u --recursive --new-file v2.4.0/linux/net/ipv4/tcp_input.c linux/net/ipv4/tcp_input.c
--- v2.4.0/linux/net/ipv4/tcp_input.c	Fri Dec 29 14:07:24 2000
+++ linux/net/ipv4/tcp_input.c	Wed Jan 10 14:12:12 2001
@@ -1705,7 +1705,7 @@
 
 		if ((__s32)when < (__s32)tp->rttvar)
 			when = tp->rttvar;
-		tcp_reset_xmit_timer(sk, TCP_TIME_RETRANS, when);
+		tcp_reset_xmit_timer(sk, TCP_TIME_RETRANS, min(when, TCP_RTO_MAX));
 	}
 }
 
diff -u --recursive --new-file v2.4.0/linux/net/sunrpc/sunrpc_syms.c linux/net/sunrpc/sunrpc_syms.c
--- v2.4.0/linux/net/sunrpc/sunrpc_syms.c	Fri Apr 21 16:08:52 2000
+++ linux/net/sunrpc/sunrpc_syms.c	Thu Jan 11 15:53:02 2001
@@ -36,6 +36,7 @@
 EXPORT_SYMBOL(rpciod_up);
 EXPORT_SYMBOL(rpc_new_task);
 EXPORT_SYMBOL(rpc_wake_up_status);
+EXPORT_SYMBOL(rpc_release_task);
 
 /* RPC client functions */
 EXPORT_SYMBOL(rpc_create_client);