18b246fa60
We have a few problems when returning to userspace. This is a quick set of fixes for 3.3, I'll look into a more comprehensive rework for 3.4. This fixes: - We kept interrupts soft-disabled when schedule'ing or calling do_signal when returning to userspace as a result of a hardware interrupt. - Rename do_signal to do_notify_resume like all other archs (and do_signal_pending back to do_signal, which it was before Roland changed it). - Add the missing call to key_replace_session_keyring() to do_notify_resume(). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> ---
57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
/*
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* Copyright (c) 2007 Benjamin Herrenschmidt, IBM Coproration
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* Extracted from signal_32.c and signal_64.c
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*
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* This file is subject to the terms and conditions of the GNU General
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* Public License. See the file README.legal in the main directory of
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* this archive for more details.
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*/
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#ifndef _POWERPC_ARCH_SIGNAL_H
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#define _POWERPC_ARCH_SIGNAL_H
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#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
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extern void do_notify_resume(struct pt_regs *regs, unsigned long thread_info_flags);
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extern void __user * get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
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size_t frame_size, int is_32);
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extern void restore_sigmask(sigset_t *set);
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extern int handle_signal32(unsigned long sig, struct k_sigaction *ka,
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siginfo_t *info, sigset_t *oldset,
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struct pt_regs *regs);
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extern int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka,
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siginfo_t *info, sigset_t *oldset,
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struct pt_regs *regs);
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extern unsigned long copy_fpr_to_user(void __user *to,
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struct task_struct *task);
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extern unsigned long copy_fpr_from_user(struct task_struct *task,
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void __user *from);
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#ifdef CONFIG_VSX
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extern unsigned long copy_vsx_to_user(void __user *to,
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struct task_struct *task);
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extern unsigned long copy_vsx_from_user(struct task_struct *task,
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void __user *from);
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#endif
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#ifdef CONFIG_PPC64
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extern int handle_rt_signal64(int signr, struct k_sigaction *ka,
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siginfo_t *info, sigset_t *set,
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struct pt_regs *regs);
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#else /* CONFIG_PPC64 */
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static inline int handle_rt_signal64(int signr, struct k_sigaction *ka,
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siginfo_t *info, sigset_t *set,
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struct pt_regs *regs)
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{
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return -EFAULT;
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}
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#endif /* !defined(CONFIG_PPC64) */
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#endif /* _POWERPC_ARCH_SIGNAL_H */
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