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uml: separate timer initialization

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Move timer signal initialization from init_irq_signals to a new function,
timer_init.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jeff Dike 2007-10-16 01:27:23 -07:00 committed by Linus Torvalds
parent a2f018bf38
commit 78a26e25ce
4 changed files with 13 additions and 4 deletions
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1
arch/um/include/os.h
View File

@ -227,6 +227,7 @@ extern int set_umid(char *name);
extern char *get_umid(void);
/* signal.c */
extern void timer_init(void);
extern void set_sigstack(void *sig_stack, int size);
extern void remove_sigstack(void);
extern void set_handler(int sig, void (*handler)(int), int flags, ...);

2
arch/um/kernel/time.c
View File

@ -97,6 +97,8 @@ static void register_timer(void)
{
int err;
timer_init();
err = request_irq(TIMER_IRQ, um_timer, IRQF_DISABLED, "timer", NULL);
if (err != 0)
printk(KERN_ERR "register_timer : request_irq failed - "

4
arch/um/os-Linux/irq.c
View File

@ -145,10 +145,6 @@ void init_irq_signals(int on_sigstack)
flags = on_sigstack ? SA_ONSTACK : 0;
set_handler(SIGVTALRM, (__sighandler_t) alarm_handler,
flags | SA_RESTART, SIGUSR1, SIGIO, SIGWINCH, SIGALRM, -1);
set_handler(SIGALRM, (__sighandler_t) alarm_handler,
flags | SA_RESTART, SIGUSR1, SIGIO, SIGWINCH, SIGALRM, -1);
set_handler(SIGIO, (__sighandler_t) sig_handler, flags | SA_RESTART,
SIGUSR1, SIGIO, SIGWINCH, SIGALRM, SIGVTALRM, -1);
signal(SIGWINCH, SIG_IGN);

10
arch/um/os-Linux/signal.c
View File

@ -85,6 +85,16 @@ void alarm_handler(int sig, struct sigcontext *sc)
set_signals(enabled);
}
void timer_init(void)
{
set_handler(SIGVTALRM, (__sighandler_t) alarm_handler,
SA_ONSTACK | SA_RESTART, SIGUSR1, SIGIO, SIGWINCH,
SIGALRM, -1);
set_handler(SIGALRM, (__sighandler_t) alarm_handler,
SA_ONSTACK | SA_RESTART, SIGUSR1, SIGIO, SIGWINCH,
SIGALRM, -1);
}
void set_sigstack(void *sig_stack, int size)
{
stack_t stack = ((stack_t) { .ss_flags = 0,