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[POWERPC] Consolidate restore_sigmask

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restore_sigmask is exactly the same on 32 and 64bit, so move it to
common code.  Also move _BLOCKABLE to signal.h to avoid defining it
multiple times.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Christoph Hellwig 2007-06-04 15:15:51 +10:00 committed by Paul Mackerras
parent 69d15f6b35
commit db277e9a67
4 changed files with 18 additions and 34 deletions
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15
arch/powerpc/kernel/signal.c
View File

@ -13,6 +13,21 @@
#include <linux/signal.h>
#include <asm/unistd.h>
#include "signal.h"
/*
* Restore the user process's signal mask
*/
void restore_sigmask(sigset_t *set)
{
sigdelsetmask(set, ~_BLOCKABLE);
spin_lock_irq(&current->sighand->siglock);
current->blocked = *set;
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
}
void check_syscall_restart(struct pt_regs *regs, struct k_sigaction *ka,
int has_handler)
{

3
arch/powerpc/kernel/signal.h
View File

@ -10,6 +10,9 @@
#ifndef _POWERPC_ARCH_SIGNAL_H
#define _POWERPC_ARCH_SIGNAL_H
#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
extern void restore_sigmask(sigset_t *set);
extern void check_syscall_restart(struct pt_regs *regs, struct k_sigaction *ka,
int has_handler);

19
arch/powerpc/kernel/signal_32.c
View File

@ -55,8 +55,6 @@
#undef DEBUG_SIG
#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
#ifdef CONFIG_PPC64
#define do_signal do_signal32
#define sys_sigsuspend compat_sys_sigsuspend
@ -697,23 +695,6 @@ int compat_sys_sigaltstack(u32 __new, u32 __old, int r5,
}
#endif /* CONFIG_PPC64 */
/*
* Restore the user process's signal mask
*/
#ifdef CONFIG_PPC64
extern void restore_sigmask(sigset_t *set);
#else /* CONFIG_PPC64 */
static void restore_sigmask(sigset_t *set)
{
sigdelsetmask(set, ~_BLOCKABLE);
spin_lock_irq(&current->sighand->siglock);
current->blocked = *set;
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
}
#endif
/*
* Set up a signal frame for a "real-time" signal handler
* (one which gets siginfo).

15
arch/powerpc/kernel/signal_64.c
View File

@ -38,8 +38,6 @@
#define DEBUG_SIG 0
#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
#define GP_REGS_SIZE min(sizeof(elf_gregset_t), sizeof(struct pt_regs))
#define FP_REGS_SIZE sizeof(elf_fpregset_t)
@ -242,19 +240,6 @@ static long setup_trampoline(unsigned int syscall, unsigned int __user *tramp)
return err;
}
/*
* Restore the user process's signal mask (also used by signal32.c)
*/
void restore_sigmask(sigset_t *set)
{
sigdelsetmask(set, ~_BLOCKABLE);
spin_lock_irq(&current->sighand->siglock);
current->blocked = *set;
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
}
/*
* Handle {get,set,swap}_context operations
*/