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  • Committer: Package Import Robot
  • Author(s): Alessio Igor Bogani
  • Date: 2011-10-26 11:13:05 UTC
  • Revision ID: package-import@ubuntu.com-20111026111305-tz023xykf0i6eosh
Tags: upstream-3.2.0
Import upstream version 3.2.0

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lib/bust_spinlocks.c
 
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/*
 
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 * lib/bust_spinlocks.c
 
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 *
 
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 * Provides a minimal bust_spinlocks for architectures which don't have one of their own.
 
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 *
 
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 * bust_spinlocks() clears any spinlocks which would prevent oops, die(), BUG()
 
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 * and panic() information from reaching the user.
 
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 */
 
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#include <linux/kernel.h>
 
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#include <linux/spinlock.h>
 
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#include <linux/tty.h>
 
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#include <linux/wait.h>
 
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#include <linux/vt_kern.h>
 
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#include <linux/console.h>
 
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void __attribute__((weak)) bust_spinlocks(int yes)
 
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{
 
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        if (yes) {
 
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                ++oops_in_progress;
 
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        } else {
 
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#ifdef CONFIG_VT
 
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                unblank_screen();
 
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#endif
 
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                console_unblank();
 
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                if (--oops_in_progress == 0)
 
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                        wake_up_klogd();
 
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        }
 
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}
 
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