LCOV - code coverage report
Current view: top level - lib - bust_spinlocks.c (source / functions) Hit Total Coverage
Test: gcov_data_raspi2_qemu_modules_combined.info Lines: 0 8 0.0 %
Date: 2020-09-30 20:25:01 Functions: 0 1 0.0 %
Branches: 0 4 0.0 %

           Branch data     Line data    Source code
       1                 :            : // SPDX-License-Identifier: GPL-2.0
       2                 :            : /*
       3                 :            :  * lib/bust_spinlocks.c
       4                 :            :  *
       5                 :            :  * Provides a minimal bust_spinlocks for architectures which don't
       6                 :            :  * have one of their own.
       7                 :            :  *
       8                 :            :  * bust_spinlocks() clears any spinlocks which would prevent oops, die(), BUG()
       9                 :            :  * and panic() information from reaching the user.
      10                 :            :  */
      11                 :            : 
      12                 :            : #include <linux/kernel.h>
      13                 :            : #include <linux/printk.h>
      14                 :            : #include <linux/spinlock.h>
      15                 :            : #include <linux/tty.h>
      16                 :            : #include <linux/wait.h>
      17                 :            : #include <linux/vt_kern.h>
      18                 :            : #include <linux/console.h>
      19                 :            : 
      20                 :          0 : void bust_spinlocks(int yes)
      21                 :            : {
      22         [ #  # ]:          0 :         if (yes) {
      23                 :          0 :                 ++oops_in_progress;
      24                 :            :         } else {
      25                 :            : #ifdef CONFIG_VT
      26                 :          0 :                 unblank_screen();
      27                 :            : #endif
      28                 :          0 :                 console_unblank();
      29         [ #  # ]:          0 :                 if (--oops_in_progress == 0)
      30                 :          0 :                         wake_up_klogd();
      31                 :            :         }
      32                 :          0 : }

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