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-rw-r--r--arch/parisc/kernel/Makefile2
-rw-r--r--arch/parisc/kernel/entry.S4
-rw-r--r--arch/parisc/kernel/init_task.c70
-rw-r--r--arch/parisc/kernel/parisc_ksyms.c1
-rw-r--r--arch/parisc/kernel/signal.c62
-rw-r--r--arch/parisc/kernel/signal32.c2
-rw-r--r--arch/parisc/kernel/smp.c25
7 files changed, 19 insertions, 147 deletions
diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile
index 67db0722e6c..66ee3f12df5 100644
--- a/arch/parisc/kernel/Makefile
+++ b/arch/parisc/kernel/Makefile
@@ -2,7 +2,7 @@
# Makefile for arch/parisc/kernel
#
-extra-y := init_task.o head.o vmlinux.lds
+extra-y := head.o vmlinux.lds
obj-y := cache.o pacache.o setup.o traps.o time.o irq.o \
pa7300lc.o syscall.o entry.o sys_parisc.o firmware.o \
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 07ef351edd5..18670a07884 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -924,7 +924,7 @@ intr_check_sig:
/* As above */
mfctl %cr30,%r1
LDREG TI_FLAGS(%r1),%r19
- ldi (_TIF_SIGPENDING|_TIF_RESTORE_SIGMASK|_TIF_NOTIFY_RESUME), %r20
+ ldi (_TIF_SIGPENDING|_TIF_NOTIFY_RESUME), %r20
and,COND(<>) %r19, %r20, %r0
b,n intr_restore /* skip past if we've nothing to do */
@@ -2032,7 +2032,7 @@ syscall_check_resched:
.import do_signal,code
syscall_check_sig:
LDREG TI_FLAGS-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r19
- ldi (_TIF_SIGPENDING|_TIF_RESTORE_SIGMASK), %r26
+ ldi (_TIF_SIGPENDING|_TIF_NOTIFY_RESUME), %r26
and,COND(<>) %r19, %r26, %r0
b,n syscall_restore /* skip past if we've nothing to do */
diff --git a/arch/parisc/kernel/init_task.c b/arch/parisc/kernel/init_task.c
deleted file mode 100644
index 4a91e433416..00000000000
--- a/arch/parisc/kernel/init_task.c
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Static declaration of "init" task data structure.
- *
- * Copyright (C) 2000 Paul Bame <bame at parisc-linux.org>
- * Copyright (C) 2000-2001 John Marvin <jsm at parisc-linux.org>
- * Copyright (C) 2001 Helge Deller <deller @ parisc-linux.org>
- * Copyright (C) 2002 Matthew Wilcox <willy with parisc-linux.org>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <linux/mm.h>
-#include <linux/fs.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/init.h>
-#include <linux/init_task.h>
-#include <linux/mqueue.h>
-
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-#include <asm/pgalloc.h>
-
-static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
-static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
-/*
- * Initial task structure.
- *
- * We need to make sure that this is 16384-byte aligned due to the
- * way process stacks are handled. This is done by having a special
- * "init_task" linker map entry..
- */
-union thread_union init_thread_union __init_task_data
- __attribute__((aligned(128))) =
- { INIT_THREAD_INFO(init_task) };
-
-#if PT_NLEVELS == 3
-/* NOTE: This layout exactly conforms to the hybrid L2/L3 page table layout
- * with the first pmd adjacent to the pgd and below it. gcc doesn't actually
- * guarantee that global objects will be laid out in memory in the same order
- * as the order of declaration, so put these in different sections and use
- * the linker script to order them. */
-pmd_t pmd0[PTRS_PER_PMD] __attribute__ ((__section__ (".data..vm0.pmd"), aligned(PAGE_SIZE)));
-#endif
-
-pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__ ((__section__ (".data..vm0.pgd"), aligned(PAGE_SIZE)));
-pte_t pg0[PT_INITIAL * PTRS_PER_PTE] __attribute__ ((__section__ (".data..vm0.pte"), aligned(PAGE_SIZE)));
-
-/*
- * Initial task structure.
- *
- * All other task structs will be allocated on slabs in fork.c
- */
-EXPORT_SYMBOL(init_task);
-
-__asm__(".data");
-struct task_struct init_task = INIT_TASK(init_task);
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index a7bb757a549..ceec85de629 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -44,7 +44,6 @@ EXPORT_SYMBOL(__cmpxchg_u64);
#endif
#include <asm/uaccess.h>
-EXPORT_SYMBOL(lstrncpy_from_user);
EXPORT_SYMBOL(lclear_user);
EXPORT_SYMBOL(lstrnlen_user);
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 12c1ed33dc1..594459bde14 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -48,9 +48,6 @@
#define DBG(LEVEL, ...)
#endif
-
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
/* gcc will complain if a pointer is cast to an integer of different
* size. If you really need to do this (and we do for an ELF32 user
* application in an ELF64 kernel) then you have to do a cast to an
@@ -109,6 +106,7 @@ sys_rt_sigreturn(struct pt_regs *regs, int in_syscall)
sigframe_size = PARISC_RT_SIGFRAME_SIZE32;
#endif
+ current_thread_info()->restart_block.fn = do_no_restart_syscall;
/* Unwind the user stack to get the rt_sigframe structure. */
frame = (struct rt_sigframe __user *)
@@ -130,11 +128,7 @@ sys_rt_sigreturn(struct pt_regs *regs, int in_syscall)
goto give_sigsegv;
}
- sigdelsetmask(&set, ~_BLOCKABLE);
- spin_lock_irq(&current->sighand->siglock);
- current->blocked = set;
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
+ set_current_blocked(&set);
/* Good thing we saved the old gr[30], eh? */
#ifdef CONFIG_64BIT
@@ -445,8 +439,9 @@ give_sigsegv:
static long
handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
- sigset_t *oldset, struct pt_regs *regs, int in_syscall)
+ struct pt_regs *regs, int in_syscall)
{
+ sigset_t *oldset = sigmask_to_save();
DBG(1,"handle_signal: sig=%ld, ka=%p, info=%p, oldset=%p, regs=%p\n",
sig, ka, info, oldset, regs);
@@ -454,17 +449,13 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
if (!setup_rt_frame(sig, ka, info, oldset, regs, in_syscall))
return 0;
- spin_lock_irq(&current->sighand->siglock);
- sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
- if (!(ka->sa.sa_flags & SA_NODEFER))
- sigaddset(&current->blocked,sig);
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
-
- tracehook_signal_handler(sig, info, ka, regs,
+ signal_delivered(sig, info, ka, regs,
test_thread_flag(TIF_SINGLESTEP) ||
test_thread_flag(TIF_BLOCKSTEP));
+ DBG(1,KERN_DEBUG "do_signal: Exit (success), regs->gr[28] = %ld\n",
+ regs->gr[28]);
+
return 1;
}
@@ -474,8 +465,6 @@ syscall_restart(struct pt_regs *regs, struct k_sigaction *ka)
/* Check the return code */
switch (regs->gr[28]) {
case -ERESTART_RESTARTBLOCK:
- current_thread_info()->restart_block.fn =
- do_no_restart_syscall;
case -ERESTARTNOHAND:
DBG(1,"ERESTARTNOHAND: returning -EINTR\n");
regs->gr[28] = -EINTR;
@@ -577,28 +566,17 @@ do_signal(struct pt_regs *regs, long in_syscall)
siginfo_t info;
struct k_sigaction ka;
int signr;
- sigset_t *oldset;
- DBG(1,"\ndo_signal: oldset=0x%p, regs=0x%p, sr7 %#lx, in_syscall=%d\n",
- oldset, regs, regs->sr[7], in_syscall);
+ DBG(1,"\ndo_signal: regs=0x%p, sr7 %#lx, in_syscall=%d\n",
+ regs, regs->sr[7], in_syscall);
/* Everyone else checks to see if they are in kernel mode at
this point and exits if that's the case. I'm not sure why
we would be called in that case, but for some reason we
are. */
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = &current->saved_sigmask;
- else
- oldset = &current->blocked;
-
- DBG(1,"do_signal: oldset %08lx / %08lx\n",
- oldset->sig[0], oldset->sig[1]);
-
-
/* May need to force signal if handle_signal failed to deliver */
while (1) {
-
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
DBG(3,"do_signal: signr = %d, regs->gr[28] = %ld\n", signr, regs->gr[28]);
@@ -612,14 +590,8 @@ do_signal(struct pt_regs *regs, long in_syscall)
/* Whee! Actually deliver the signal. If the
delivery failed, we need to continue to iterate in
this loop so we can deliver the SIGSEGV... */
- if (handle_signal(signr, &info, &ka, oldset,
- regs, in_syscall)) {
- DBG(1,KERN_DEBUG "do_signal: Exit (success), regs->gr[28] = %ld\n",
- regs->gr[28]);
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- clear_thread_flag(TIF_RESTORE_SIGMASK);
+ if (handle_signal(signr, &info, &ka, regs, in_syscall))
return;
- }
}
/* end of while(1) looping forever if we can't force a signal */
@@ -630,24 +602,16 @@ do_signal(struct pt_regs *regs, long in_syscall)
DBG(1,"do_signal: Exit (not delivered), regs->gr[28] = %ld\n",
regs->gr[28]);
- if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
- }
-
- return;
+ restore_saved_sigmask();
}
void do_notify_resume(struct pt_regs *regs, long in_syscall)
{
- if (test_thread_flag(TIF_SIGPENDING) ||
- test_thread_flag(TIF_RESTORE_SIGMASK))
+ if (test_thread_flag(TIF_SIGPENDING))
do_signal(regs, in_syscall);
if (test_thread_flag(TIF_NOTIFY_RESUME)) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(regs);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
}
diff --git a/arch/parisc/kernel/signal32.c b/arch/parisc/kernel/signal32.c
index e1413243076..fd49aeda9eb 100644
--- a/arch/parisc/kernel/signal32.c
+++ b/arch/parisc/kernel/signal32.c
@@ -47,8 +47,6 @@
#define DBG(LEVEL, ...)
#endif
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
inline void
sigset_32to64(sigset_t *s64, compat_sigset_t *s32)
{
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 4dc7b7942b4..a47828d31fe 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -340,26 +340,11 @@ void __init smp_callin(void)
/*
* Bring one cpu online.
*/
-int __cpuinit smp_boot_one_cpu(int cpuid)
+int __cpuinit smp_boot_one_cpu(int cpuid, struct task_struct *idle)
{
const struct cpuinfo_parisc *p = &per_cpu(cpu_data, cpuid);
- struct task_struct *idle;
long timeout;
- /*
- * Create an idle task for this CPU. Note the address wed* give
- * to kernel_thread is irrelevant -- it's going to start
- * where OS_BOOT_RENDEVZ vector in SAL says to start. But
- * this gets all the other task-y sort of data structures set
- * up like we wish. We need to pull the just created idle task
- * off the run queue and stuff it into the init_tasks[] array.
- * Sheesh . . .
- */
-
- idle = fork_idle(cpuid);
- if (IS_ERR(idle))
- panic("SMP: fork failed for CPU:%d", cpuid);
-
task_thread_info(idle)->cpu = cpuid;
/* Let _start know what logical CPU we're booting
@@ -403,10 +388,6 @@ int __cpuinit smp_boot_one_cpu(int cpuid)
udelay(100);
barrier();
}
-
- put_task_struct(idle);
- idle = NULL;
-
printk(KERN_CRIT "SMP: CPU:%d is stuck.\n", cpuid);
return -1;
@@ -455,10 +436,10 @@ void smp_cpus_done(unsigned int cpu_max)
}
-int __cpuinit __cpu_up(unsigned int cpu)
+int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle)
{
if (cpu != 0 && cpu < parisc_max_cpus)
- smp_boot_one_cpu(cpu);
+ smp_boot_one_cpu(cpu, tidle);
return cpu_online(cpu) ? 0 : -ENOSYS;
}