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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-12-23 03:50:34 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-02-03 18:16:21 -0500 |
| commit | 47669ab0361558a734e42f78196636d70201e44f (patch) | |
| tree | 4152f4be043a8eb8a507d380626d01bafbd7ef16 /arch/tile/kernel/signal.c | |
| parent | 0aa0203fb43f04714004b2c4ad33b858e240555d (diff) | |
| download | lwn-47669ab0361558a734e42f78196636d70201e44f.tar.gz lwn-47669ab0361558a734e42f78196636d70201e44f.zip | |
tile: switch to generic sigaltstack
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/tile/kernel/signal.c')
| -rw-r--r-- | arch/tile/kernel/signal.c | 15 |
1 files changed, 2 insertions, 13 deletions
diff --git a/arch/tile/kernel/signal.c b/arch/tile/kernel/signal.c index 657a7ace4ab4..9531845bf661 100644 --- a/arch/tile/kernel/signal.c +++ b/arch/tile/kernel/signal.c @@ -37,13 +37,6 @@ #define DEBUG_SIG 0 -SYSCALL_DEFINE2(sigaltstack, const stack_t __user *, uss, - stack_t __user *, uoss) -{ - return do_sigaltstack(uss, uoss, current_pt_regs()->sp); -} - - /* * Do a signal return; undo the signal stack. */ @@ -100,7 +93,7 @@ SYSCALL_DEFINE0(rt_sigreturn) if (restore_sigcontext(regs, &frame->uc.uc_mcontext)) goto badframe; - if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->sp) == -EFAULT) + if (restore_altstack(&frame->uc.uc_stack)) goto badframe; return 0; @@ -191,11 +184,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, err |= __clear_user(&frame->save_area, sizeof(frame->save_area)); err |= __put_user(0, &frame->uc.uc_flags); err |= __put_user(NULL, &frame->uc.uc_link); - err |= __put_user((void __user *)(current->sas_ss_sp), - &frame->uc.uc_stack.ss_sp); - err |= __put_user(sas_ss_flags(regs->sp), - &frame->uc.uc_stack.ss_flags); - err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size); + err |= __save_altstack(&frame->uc.uc_stack, regs->sp); err |= setup_sigcontext(&frame->uc.uc_mcontext, regs); err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); if (err) |