sh: switch to saved_sigmask-based sigsuspend()/rt_sigsuspend()
Complete the move of sh64 to it, trim the crap from prototypes, tidy up a bit. Infrastructure in do_signal() had already been there, in signal_64 as well as in signal_32 (where it was already used). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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@@ -23,9 +23,7 @@ asmlinkage int sys_execve(const char __user *ufilename,
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const char __user *const __user *uargv,
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const char __user *const __user *uenvp,
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unsigned long r7, struct pt_regs __regs);
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asmlinkage int sys_sigsuspend(old_sigset_t mask, unsigned long r5,
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unsigned long r6, unsigned long r7,
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struct pt_regs __regs);
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asmlinkage int sys_sigsuspend(old_sigset_t mask);
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asmlinkage int sys_sigaction(int sig, const struct old_sigaction __user *act,
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struct old_sigaction __user *oact);
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asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
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