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    Subject[PATCH] LKCD for 2.5.44 (5/8): sysrq changes for dump
    Add sysrq hooks for dump crash dump handling.

    sysrq.c | 13 ++++++++++++-
    1 files changed, 12 insertions(+), 1 deletion(-)

    diff -Naur linux-2.5.44.orig/drivers/char/sysrq.c linux-2.5.44.lkcd/drivers/char/sysrq.c
    --- linux-2.5.44.orig/drivers/char/sysrq.c Fri Oct 18 21:02:29 2002
    +++ linux-2.5.44.lkcd/drivers/char/sysrq.c Sat Oct 19 12:39:15 2002
    @@ -32,6 +32,7 @@
    #include <linux/buffer_head.h> /* for fsync_bdev() */

    #include <linux/spinlock.h>
    +#include <linux/dump.h>

    #include <asm/ptrace.h>

    @@ -307,6 +308,16 @@
    }
    }

    +static void sysrq_handle_crashdump(int key, struct pt_regs *pt_regs,
    + struct tty_struct *tty) {
    + dump("sysrq", pt_regs);
    +}
    +static struct sysrq_key_op sysrq_crashdump_op = {
    + handler: sysrq_handle_crashdump,
    + help_msg: "Crash",
    + action_msg: "Start a Crash Dump (If Configured)",
    +};
    +
    static void sysrq_handle_term(int key, struct pt_regs *pt_regs,
    struct tty_struct *tty)
    {
    @@ -352,7 +363,7 @@
    it is handled specially on the sparc
    and will never arrive */
    /* b */ &sysrq_reboot_op,
    -/* c */ NULL,
    +/* c */ &sysrq_crashdump_op,
    /* d */ NULL,
    /* e */ &sysrq_term_op,
    /* f */ NULL,
    -
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