bust_spinlocks.c

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    1 /*
    2  * lib/bust_spinlocks.c
    3  *
    4  * Provides a minimal bust_spinlocks for architectures which don't have one of their own.
    5  *
    6  * bust_spinlocks() clears any spinlocks which would prevent oops, die(), BUG()
    7  * and panic() information from reaching the user.
    8  */
    9 
   10 #include <linux/kernel.h>
   11 #include <linux/spinlock.h>
   12 #include <linux/tty.h>
   13 #include <linux/wait.h>
   14 #include <linux/vt_kern.h>
   15 #include <linux/console.h>
   16 
   17 
   18 void __attribute__((weak)) bust_spinlocks(int yes)
   19 {
   20         if (yes) {
   21                 ++oops_in_progress;
   22         } else {
   23 #ifdef CONFIG_VT
   24                 unblank_screen();
   25 #endif
   26                 console_unblank();
   27                 if (--oops_in_progress == 0)
   28                         wake_up_klogd();
   29         }
   30 }
   31 
   32

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FreeBSD/Linux Kernel Cross Reference sys/lib/bust_spinlocks.c

FreeBSD/Linux Kernel Cross Reference
sys/lib/bust_spinlocks.c