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    Subject[patch 088/101] kernel/time/clocksource.c needs struct task_struct on m68k

    From: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>

    kernel/time/clocksource.c needs struct task_struct on m68k.

    Because it uses spin_unlock_irq(), which, on m68k, uses hardirq_count(), which
    uses preempt_count(), which needs to dereference struct task_struct, we
    have to include sched.h. Because it would cause a loop inclusion, we
    cannot include sched.h in any other of asm-m68k/system.h,
    linux/thread_info.h, linux/hardirq.h, which leaves this ugly include in
    a C file as the only simple solution.

    Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
    Cc: Ingo Molnar <mingo@elte.hu>
    Cc: Roman Zippel <zippel@linux-m68k.org>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

    ---
    kernel/time/clocksource.c | 1 +
    1 file changed, 1 insertion(+)

    --- linux-2.6.20.1.orig/kernel/time/clocksource.c
    +++ linux-2.6.20.1/kernel/time/clocksource.c
    @@ -28,6 +28,7 @@
    #include <linux/sysdev.h>
    #include <linux/init.h>
    #include <linux/module.h>
    +#include <linux/sched.h> /* for spin_unlock_irq() using preempt_count() m68k */

    /* XXX - Would like a better way for initializing curr_clocksource */
    extern struct clocksource clocksource_jiffies;
    --
    -
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