Fix typos in doc and comments
[linux-2.6] / lib / bust_spinlocks.c
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
16
17 void bust_spinlocks(int yes)
18 {
19         if (yes) {
20                 oops_in_progress = 1;
21         } else {
22                 int loglevel_save = console_loglevel;
23 #ifdef CONFIG_VT
24                 unblank_screen();
25 #endif
26                 oops_in_progress = 0;
27                 /*
28                  * OK, the message is on the console.  Now we call printk()
29                  * without oops_in_progress set so that printk() will give klogd
30                  * and the blanked console a poke.  Hold onto your hats...
31                  */
32                 console_loglevel = 15;          /* NMI oopser may have shut the console up */
33                 printk(" ");
34                 console_loglevel = loglevel_save;
35         }
36 }
37
38