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Subject0n the heels on 10khz patch for 2.6 here is the patch for 2.4 hot of the press
Date


just wanted to thank Jean-Marc Valin for the 10khz patch,
here is the patch for 2.4, it boots for me for 2.4G HT/SMP enabled CPU
but YMMV

i am not subscribed to the list so please cc me personally
if it were not for kerneltrap i would have never seen the original patch


thanks and enjoy
niraj
diff -urN linux-2.4.22/arch/i386/kernel/apic.c 10klinux-2.4.22/arch/i386/kernel/apic.c
--- linux-2.4.22/arch/i386/kernel/apic.c 2003-06-13 07:51:29.000000000 -0700
+++ 10klinux-2.4.22/arch/i386/kernel/apic.c 2003-12-15 17:55:37.000000000 -0800
@@ -767,7 +767,7 @@
* chipset timer can cause.
*/

- } while (delta < 300);
+ } while (delta < 30);
}

/*
diff -urN linux-2.4.22/arch/i386/kernel/setup.c 10klinux-2.4.22/arch/i386/kernel/setup.c
--- linux-2.4.22/arch/i386/kernel/setup.c 2003-08-25 04:44:39.000000000 -0700
+++ 10klinux-2.4.22/arch/i386/kernel/setup.c 2003-12-15 17:55:37.000000000 -0800
@@ -3051,8 +3051,8 @@
seq_printf(m, " %s", x86_cap_flags[i]);

seq_printf(m, "\nbogomips\t: %lu.%02lu\n\n",
- c->loops_per_jiffy/(500000/HZ),
- (c->loops_per_jiffy/(5000/HZ)) % 100);
+ HZ*(c->loops_per_jiffy>>3)/62500,
+ (HZ*(c->loops_per_jiffy>>3)/625)%100);
return 0;
}

diff -urN linux-2.4.22/arch/i386/kernel/smpboot.c 10klinux-2.4.22/arch/i386/kernel/smpboot.c
--- linux-2.4.22/arch/i386/kernel/smpboot.c 2003-08-25 04:44:39.000000000 -0700
+++ 10klinux-2.4.22/arch/i386/kernel/smpboot.c 2003-12-15 17:55:37.000000000 -0800
@@ -1164,8 +1164,8 @@
bogosum += cpu_data[cpu].loops_per_jiffy;
printk(KERN_INFO "Total of %d processors activated (%lu.%02lu BogoMIPS).\n",
cpucount+1,
- bogosum/(500000/HZ),
- (bogosum/(5000/HZ))%100);
+ HZ *(bogosum >>3)/62500,
+ (HZ*(bogosum>>3)/625)%100);
Dprintk("Before bogocount - setting activated=1.\n");
}
smp_num_cpus = cpucount + 1;
diff -urN linux-2.4.22/drivers/char/dtlk.c 10klinux-2.4.22/drivers/char/dtlk.c
--- linux-2.4.22/drivers/char/dtlk.c 2001-09-13 15:21:32.000000000 -0700
+++ 10klinux-2.4.22/drivers/char/dtlk.c 2003-12-15 17:55:37.000000000 -0800
@@ -209,7 +209,7 @@
up to 250 usec for the RDY bit to
go nonzero. */
for (retries = 0;
- retries < loops_per_jiffy / (4000/HZ);
+ retries < HZ*(loops_per_jiffy>>5)/125;
retries++)
if (inb_p(dtlk_port_tts) &
TTS_WRITABLE)
diff -urN linux-2.4.22/drivers/char/ipmi/ipmi_msghandler.c 10klinux-2.4.22/drivers/char/ipmi/ipmi_msghandler.c
--- linux-2.4.22/drivers/char/ipmi/ipmi_msghandler.c 2003-06-13 07:51:33.000000000 -0700
+++ 10klinux-2.4.22/drivers/char/ipmi/ipmi_msghandler.c 2003-12-15 17:55:37.000000000 -0800
@@ -1742,7 +1742,7 @@

/* Call every 100 ms. */
#define IPMI_TIMEOUT_TIME 100
-#define IPMI_TIMEOUT_JIFFIES (IPMI_TIMEOUT_TIME/(1000/HZ))
+#define IPMI_TIMEOUT_JIFFIES ((IPMI_TIMEOUT_TIME * HZ) / 1000)

/* Request events from the queue every second. Hopefully, in the
future, IPMI will add a way to know immediately if an event is
diff -urN linux-2.4.22/include/linux/cyclades.h 10klinux-2.4.22/include/linux/cyclades.h
--- linux-2.4.22/include/linux/cyclades.h 2003-06-13 07:51:38.000000000 -0700
+++ 10klinux-2.4.22/include/linux/cyclades.h 2003-12-15 17:55:37.000000000 -0800
@@ -580,7 +580,7 @@
int custom_divisor;
int x_char; /* to be pushed out ASAP */
int close_delay;
- unsigned short closing_wait;
+ unsigned int closing_wait;
unsigned long event;
unsigned long last_active;
int count; /* # of fd on device */
diff -urN linux-2.4.22/include/linux/generic_serial.h 10klinux-2.4.22/include/linux/generic_serial.h
--- linux-2.4.22/include/linux/generic_serial.h 2002-02-25 11:38:13.000000000 -0800
+++ 10klinux-2.4.22/include/linux/generic_serial.h 2003-12-15 17:55:37.000000000 -0800
@@ -46,7 +46,7 @@
int blocked_open;
struct tty_struct *tty;
int event;
- unsigned short closing_wait;
+ unsigned int closing_wait;
int close_delay;
struct real_driver *rd;
int wakeup_chars;
diff -urN linux-2.4.22/include/linux/hayesesp.h 10klinux-2.4.22/include/linux/hayesesp.h
--- linux-2.4.22/include/linux/hayesesp.h 1999-05-12 13:27:37.000000000 -0700
+++ 10klinux-2.4.22/include/linux/hayesesp.h 2003-12-15 17:55:37.000000000 -0800
@@ -87,8 +87,8 @@
int stat_flags;
int custom_divisor;
int close_delay;
- unsigned short closing_wait;
- unsigned short closing_wait2;
+ unsigned int closing_wait;
+ unsigned int closing_wait2;
int IER; /* Interrupt Enable Register */
int MCR; /* Modem control register */
unsigned long event;
diff -urN linux-2.4.22/include/linux/isicom.h 10klinux-2.4.22/include/linux/isicom.h
--- linux-2.4.22/include/linux/isicom.h 2001-07-26 13:53:38.000000000 -0700
+++ 10klinux-2.4.22/include/linux/isicom.h 2003-12-15 17:55:37.000000000 -0800
@@ -147,7 +147,7 @@
int close_delay;
unsigned short channel;
unsigned short status;
- unsigned short closing_wait;
+ unsigned int closing_wait;
long session;
long pgrp;
struct isi_board * card;
diff -urN linux-2.4.22/include/linux/serial.h 10klinux-2.4.22/include/linux/serial.h
--- linux-2.4.22/include/linux/serial.h 2002-08-02 17:39:45.000000000 -0700
+++ 10klinux-2.4.22/include/linux/serial.h 2003-12-15 17:55:37.000000000 -0800
@@ -39,12 +39,12 @@
int xmit_fifo_size;
int custom_divisor;
int baud_base;
- unsigned short close_delay;
+ unsigned int close_delay;
char io_type;
char reserved_char[1];
int hub6;
- unsigned short closing_wait; /* time to wait before closing */
- unsigned short closing_wait2; /* no longer used... */
+ unsigned int closing_wait; /* time to wait before closing */
+ unsigned int closing_wait2; /* no longer used... */
unsigned char *iomem_base;
unsigned short iomem_reg_shift;
unsigned int port_high;
diff -urN linux-2.4.22/include/linux/serialP.h 10klinux-2.4.22/include/linux/serialP.h
--- linux-2.4.22/include/linux/serialP.h 2002-08-02 17:39:45.000000000 -0700
+++ 10klinux-2.4.22/include/linux/serialP.h 2003-12-15 17:55:37.000000000 -0800
@@ -45,8 +45,8 @@
int count;
u8 *iomem_base;
u16 iomem_reg_shift;
- unsigned short close_delay;
- unsigned short closing_wait; /* time to wait before closing */
+ unsigned int close_delay;
+ unsigned int closing_wait; /* time to wait before closing */
struct async_icount icount;
struct termios normal_termios;
struct termios callout_termios;
@@ -69,8 +69,8 @@
int quot;
int x_char; /* xon/xoff character */
int close_delay;
- unsigned short closing_wait;
- unsigned short closing_wait2;
+ unsigned int closing_wait;
+ unsigned int closing_wait2;
int IER; /* Interrupt Enable Register */
int MCR; /* Modem control register */
int LCR; /* Line control register */
diff -urN linux-2.4.22/include/linux/timex.h 10klinux-2.4.22/include/linux/timex.h
--- linux-2.4.22/include/linux/timex.h 2001-11-22 11:46:18.000000000 -0800
+++ 10klinux-2.4.22/include/linux/timex.h 2003-12-15 17:55:37.000000000 -0800
@@ -74,6 +74,12 @@
# define SHIFT_HZ 9
#elif HZ >= 768 && HZ < 1536
# define SHIFT_HZ 10
+#elif HZ >= 1536 && HZ < 3072
+# define SHIFT_HZ 11
+#elif HZ >= 3072 && HZ < 6144
+# define SHIFT_HZ 12
+#elif HZ >= 6144 && HZ < 12288
+# define SHIFT_HZ 13
#else
# error You lose.
#endif
diff -urN linux-2.4.22/include/net/irda/ircomm_tty.h 10klinux-2.4.22/include/net/irda/ircomm_tty.h
--- linux-2.4.22/include/net/irda/ircomm_tty.h 2003-08-25 04:44:44.000000000 -0700
+++ 10klinux-2.4.22/include/net/irda/ircomm_tty.h 2003-12-15 17:55:37.000000000 -0800
@@ -99,8 +99,8 @@
struct timer_list watchdog_timer;
struct tq_struct tqueue;

- unsigned short close_delay;
- unsigned short closing_wait; /* time to wait before closing */
+ unsigned int close_delay;
+ unsigned int closing_wait; /* time to wait before closing */

long session; /* Session of opening process */
long pgrp; /* pgrp of opening process */
diff -urN linux-2.4.22/include/net/tcp.h 10klinux-2.4.22/include/net/tcp.h
--- linux-2.4.22/include/net/tcp.h 2003-08-25 04:44:44.000000000 -0700
+++ 10klinux-2.4.22/include/net/tcp.h 2003-12-15 17:55:37.000000000 -0800
@@ -375,8 +375,8 @@
so that we select tick to get range about 4 seconds.
*/

-#if HZ <= 16 || HZ > 4096
-# error Unsupported: HZ <= 16 or HZ > 4096
+#if HZ <= 16 || HZ > 16384
+# error Unsupported: HZ <= 16 or HZ > 16384
#elif HZ <= 32
# define TCP_TW_RECYCLE_TICK (5+2-TCP_TW_RECYCLE_SLOTS_LOG)
#elif HZ <= 64
@@ -391,8 +391,12 @@
# define TCP_TW_RECYCLE_TICK (10+2-TCP_TW_RECYCLE_SLOTS_LOG)
#elif HZ <= 2048
# define TCP_TW_RECYCLE_TICK (11+2-TCP_TW_RECYCLE_SLOTS_LOG)
-#else
+#elif HZ <= 4096
# define TCP_TW_RECYCLE_TICK (12+2-TCP_TW_RECYCLE_SLOTS_LOG)
+#elif HZ <= 8192
+# define TCP_TW_RECYCLE_TICK (13+2-TCP_TW_RECYCLE_SLOTS_LOG)
+#else
+# define TCP_TW_RECYCLE_TICK (14+2-TCP_TW_RECYCLE_SLOTS_LOG)
#endif

/*
diff -urN linux-2.4.22/init/main.c 10klinux-2.4.22/init/main.c
--- linux-2.4.22/init/main.c 2003-08-25 04:44:44.000000000 -0700
+++ 10klinux-2.4.22/init/main.c 2003-12-15 17:55:37.000000000 -0800
@@ -198,8 +198,8 @@

/* Round the value and print it */
printk("%lu.%02lu BogoMIPS\n",
- loops_per_jiffy/(500000/HZ),
- (loops_per_jiffy/(5000/HZ)) % 100);
+ HZ*(loops_per_jiffy>>3)/62500,
+ (HZ*(loops_per_jiffy>>3)/625)%100);
}

static int __init debug_kernel(char *str)
diff -urN linux-2.4.22/kernel/timer.c 10klinux-2.4.22/kernel/timer.c
--- linux-2.4.22/kernel/timer.c 2002-11-28 15:53:15.000000000 -0800
+++ 10klinux-2.4.22/kernel/timer.c 2003-12-15 17:55:37.000000000 -0800
@@ -430,7 +430,11 @@
if (ltemp > (MAXPHASE / MINSEC) << SHIFT_UPDATE)
ltemp = (MAXPHASE / MINSEC) << SHIFT_UPDATE;
time_offset += ltemp;
- time_adj = -ltemp << (SHIFT_SCALE - SHIFT_HZ - SHIFT_UPDATE);
+#if SHIFT_SCALE - SHIFT_HZ - SHIFT_UPDATE > 0
+ time_adj = -ltemp << (SHIFT_SCALE - SHIFT_HZ - SHIFT_UPDATE);
+#else
+ time_adj = -ltemp >> (SHIFT_HZ + SHIFT_UPDATE - SHIFT_SCALE);
+#endif
} else {
ltemp = time_offset;
if (!(time_status & STA_FLL))
@@ -438,7 +442,11 @@
if (ltemp > (MAXPHASE / MINSEC) << SHIFT_UPDATE)
ltemp = (MAXPHASE / MINSEC) << SHIFT_UPDATE;
time_offset -= ltemp;
- time_adj = ltemp << (SHIFT_SCALE - SHIFT_HZ - SHIFT_UPDATE);
+#if SHIFT_SCALE - SHIFT_HZ - SHIFT_UPDATE > 0
+ time_adj = -ltemp << (SHIFT_SCALE - SHIFT_HZ - SHIFT_UPDATE);
+#else
+ time_adj = -ltemp >> (SHIFT_HZ + SHIFT_UPDATE - SHIFT_SCALE);
+#endif
}

/*
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