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-rw-r--r--arch/alpha/include/asm/unistd.h1
-rw-r--r--arch/alpha/kernel/entry.S32
-rw-r--r--arch/alpha/kernel/signal.c38
3 files changed, 2 insertions, 69 deletions
diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h
index 9a9672f0a346..058937bf5a77 100644
--- a/arch/alpha/include/asm/unistd.h
+++ b/arch/alpha/include/asm/unistd.h
@@ -466,6 +466,7 @@
466#define __ARCH_WANT_SYS_OLD_GETRLIMIT 466#define __ARCH_WANT_SYS_OLD_GETRLIMIT
467#define __ARCH_WANT_SYS_OLDUMOUNT 467#define __ARCH_WANT_SYS_OLDUMOUNT
468#define __ARCH_WANT_SYS_SIGPENDING 468#define __ARCH_WANT_SYS_SIGPENDING
469#define __ARCH_WANT_SYS_RT_SIGSUSPEND
469 470
470/* "Conditional" syscalls. What we want is 471/* "Conditional" syscalls. What we want is
471 472
diff --git a/arch/alpha/kernel/entry.S b/arch/alpha/kernel/entry.S
index b45d913a51c3..bceb325fd4c5 100644
--- a/arch/alpha/kernel/entry.S
+++ b/arch/alpha/kernel/entry.S
@@ -779,38 +779,6 @@ sys_rt_sigreturn:
779.end sys_rt_sigreturn 779.end sys_rt_sigreturn
780 780
781 .align 4 781 .align 4
782 .globl sys_sigsuspend
783 .ent sys_sigsuspend
784sys_sigsuspend:
785 .prologue 0
786 mov $sp, $17
787 br $1, do_switch_stack
788 mov $sp, $18
789 subq $sp, 16, $sp
790 stq $26, 0($sp)
791 jsr $26, do_sigsuspend
792 ldq $26, 0($sp)
793 lda $sp, SWITCH_STACK_SIZE+16($sp)
794 ret
795.end sys_sigsuspend
796
797 .align 4
798 .globl sys_rt_sigsuspend
799 .ent sys_rt_sigsuspend
800sys_rt_sigsuspend:
801 .prologue 0
802 mov $sp, $18
803 br $1, do_switch_stack
804 mov $sp, $19
805 subq $sp, 16, $sp
806 stq $26, 0($sp)
807 jsr $26, do_rt_sigsuspend
808 ldq $26, 0($sp)
809 lda $sp, SWITCH_STACK_SIZE+16($sp)
810 ret
811.end sys_rt_sigsuspend
812
813 .align 4
814 .globl sys_sethae 782 .globl sys_sethae
815 .ent sys_sethae 783 .ent sys_sethae
816sys_sethae: 784sys_sethae:
diff --git a/arch/alpha/kernel/signal.c b/arch/alpha/kernel/signal.c
index e5b1b3c79ff3..0f6b51ae865a 100644
--- a/arch/alpha/kernel/signal.c
+++ b/arch/alpha/kernel/signal.c
@@ -144,8 +144,7 @@ SYSCALL_DEFINE5(rt_sigaction, int, sig, const struct sigaction __user *, act,
144/* 144/*
145 * Atomically swap in the new signal mask, and wait for a signal. 145 * Atomically swap in the new signal mask, and wait for a signal.
146 */ 146 */
147asmlinkage int 147SYSCALL_DEFINE1(sigsuspend, old_sigset_t, mask)
148do_sigsuspend(old_sigset_t mask, struct pt_regs *regs, struct switch_stack *sw)
149{ 148{
150 mask &= _BLOCKABLE; 149 mask &= _BLOCKABLE;
151 spin_lock_irq(&current->sighand->siglock); 150 spin_lock_irq(&current->sighand->siglock);
@@ -154,41 +153,6 @@ do_sigsuspend(old_sigset_t mask, struct pt_regs *regs, struct switch_stack *sw)
154 recalc_sigpending(); 153 recalc_sigpending();
155 spin_unlock_irq(&current->sighand->siglock); 154 spin_unlock_irq(&current->sighand->siglock);
156 155
157 /* Indicate EINTR on return from any possible signal handler,
158 which will not come back through here, but via sigreturn. */
159 regs->r0 = EINTR;
160 regs->r19 = 1;
161
162 current->state = TASK_INTERRUPTIBLE;
163 schedule();
164 set_thread_flag(TIF_RESTORE_SIGMASK);
165 return -ERESTARTNOHAND;
166}
167
168asmlinkage int
169do_rt_sigsuspend(sigset_t __user *uset, size_t sigsetsize,
170 struct pt_regs *regs, struct switch_stack *sw)
171{
172 sigset_t set;
173
174 /* XXX: Don't preclude handling different sized sigset_t's. */
175 if (sigsetsize != sizeof(sigset_t))
176 return -EINVAL;
177 if (copy_from_user(&set, uset, sizeof(set)))
178 return -EFAULT;
179
180 sigdelsetmask(&set, ~_BLOCKABLE);
181 spin_lock_irq(&current->sighand->siglock);
182 current->saved_sigmask = current->blocked;
183 current->blocked = set;
184 recalc_sigpending();
185 spin_unlock_irq(&current->sighand->siglock);
186
187 /* Indicate EINTR on return from any possible signal handler,
188 which will not come back through here, but via sigreturn. */
189 regs->r0 = EINTR;
190 regs->r19 = 1;
191
192 current->state = TASK_INTERRUPTIBLE; 156 current->state = TASK_INTERRUPTIBLE;
193 schedule(); 157 schedule();
194 set_thread_flag(TIF_RESTORE_SIGMASK); 158 set_thread_flag(TIF_RESTORE_SIGMASK);