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um: simplify set_handler()

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For one thing, we always block the same signals (IRQ ones - IO, WINCH, VTALRM),
so there's no need to pass sa_mask elements in arguments.  For another, the
flags depend only on whether it's an IRQ signal or not (we add SA_RESTART
for them).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Al Viro 2011-08-18 20:04:29 +01:00 • committed by Richard Weinberger
parent d5c7e8b4ec
commit e87df986ed
4 changed files with 19 additions and 27 deletions
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arch/um/include/shared/os.h
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@ -225,7 +225,7 @@ extern char *get_umid(void);
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, ...);
extern void set_handler(int sig, void (*handler)(int));
extern int change_sig(int signal, int on);
extern void block_signals(void);
extern void unblock_signals(void);