bust_spinlocks.c 582 B

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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. #include <linux/kernel.h>
  10. #include <linux/spinlock.h>
  11. #include <linux/tty.h>
  12. #include <linux/wait.h>
  13. #include <linux/vt_kern.h>
  14. void __attribute__((weak)) bust_spinlocks(int yes)
  15. {
  16. if (yes) {
  17. oops_in_progress = 1;
  18. } else {
  19. #ifdef CONFIG_VT
  20. unblank_screen();
  21. #endif
  22. oops_in_progress = 0;
  23. wake_up_klogd();
  24. }
  25. }