[PATCH] mips: task_thread_info()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 6c358b3..f838b36 100644 (file)
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -438,7 +438,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                break;
 
        case PTRACE_GET_THREAD_AREA:
-               ret = put_user(child->thread_info->tp_value,
+               ret = put_user(task_thread_info(child)->tp_value,
                                (unsigned long __user *) data);
                break;
 

diff --git a/arch/mips/kernel/ptrace32.c b/arch/mips/kernel/ptrace32.c
index 456ec43..0c82b25 100644 (file)
--- a/arch/mips/kernel/ptrace32.c
+++ b/arch/mips/kernel/ptrace32.c
@@ -375,7 +375,7 @@ asmlinkage int sys32_ptrace(int request, int pid, int addr, int data)
                break;
 
        case PTRACE_GET_THREAD_AREA:
-               ret = put_user(child->thread_info->tp_value,
+               ret = put_user(task_thread_info(child)->tp_value,
                                (unsigned int __user *) (unsigned long) data);
                break;
 
@@ -389,7 +389,7 @@ asmlinkage int sys32_ptrace(int request, int pid, int addr, int data)
                break;
 
        case PTRACE_GET_THREAD_AREA_3264:
-               ret = put_user(child->thread_info->tp_value,
+               ret = put_user(task_thread_info(child)->tp_value,
                                (unsigned long __user *) (unsigned long) data);
                break;
 

diff --git a/arch/mips/kernel/smp_mt.c b/arch/mips/kernel/smp_mt.c
index d429544..794a1c3 100644 (file)
--- a/arch/mips/kernel/smp_mt.c
+++ b/arch/mips/kernel/smp_mt.c
@@ -287,6 +287,7 @@ void prom_prepare_cpus(unsigned int max_cpus)
  */
 void prom_boot_secondary(int cpu, struct task_struct *idle)
 {
+       struct thread_info *gp = task_thread_info(idle);
        dvpe();
        set_c0_mvpcontrol(MVPCONTROL_VPC);
 
@@ -307,11 +308,9 @@ void prom_boot_secondary(int cpu, struct task_struct *idle)
        write_tc_gpr_sp( __KSTK_TOS(idle));
 
        /* global pointer */
-       write_tc_gpr_gp((unsigned long)idle->thread_info);
+       write_tc_gpr_gp((unsigned long)gp);
 
-       flush_icache_range((unsigned long)idle->thread_info,
-                                          (unsigned long)idle->thread_info +
-                                          sizeof(struct thread_info));
+       flush_icache_range((unsigned long)gp, (unsigned long)(gp + 1));
 
        /* finally out of configuration and into chaos */
        clear_c0_mvpcontrol(MVPCONTROL_VPC);

diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
index 0068819..3323584 100644 (file)
--- a/arch/mips/kernel/syscall.c
+++ b/arch/mips/kernel/syscall.c
@@ -263,7 +263,7 @@ asmlinkage int sys_olduname(struct oldold_utsname * name)
 
 void sys_set_thread_area(unsigned long addr)
 {
-       struct thread_info *ti = current->thread_info;
+       struct thread_info *ti = task_thread_info(current);
 
        ti->tp_value = addr;
 

diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 7058893..59a1879 100644 (file)
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -519,7 +519,7 @@ static inline int simulate_llsc(struct pt_regs *regs)
  */
 static inline int simulate_rdhwr(struct pt_regs *regs)
 {
-       struct thread_info *ti = current->thread_info;
+       struct thread_info *ti = task_thread_info(current);
        unsigned int opcode;
 
        if (unlikely(get_insn_opcode(regs, &opcode)))

diff --git a/arch/mips/pmc-sierra/yosemite/smp.c b/arch/mips/pmc-sierra/yosemite/smp.c
index 0527170..f17f575 100644 (file)
--- a/arch/mips/pmc-sierra/yosemite/smp.c
+++ b/arch/mips/pmc-sierra/yosemite/smp.c
@@ -93,8 +93,8 @@ void __init prom_prepare_cpus(unsigned int max_cpus)
  */
 void prom_boot_secondary(int cpu, struct task_struct *idle)
 {
-       unsigned long gp = (unsigned long) idle->thread_info;
-       unsigned long sp = gp + THREAD_SIZE - 32;
+       unsigned long gp = (unsigned long) task_thread_info(idle);
+       unsigned long sp = __KSTK_TOP(idle);
 
        secondary_sp = sp;
        secondary_gp = gp;

diff --git a/arch/mips/sgi-ip27/ip27-smp.c b/arch/mips/sgi-ip27/ip27-smp.c
index 3a8291b..dbef3f6 100644 (file)
--- a/arch/mips/sgi-ip27/ip27-smp.c
+++ b/arch/mips/sgi-ip27/ip27-smp.c
@@ -168,8 +168,8 @@ void __init prom_prepare_cpus(unsigned int max_cpus)
  */
 void __init prom_boot_secondary(int cpu, struct task_struct *idle)
 {
-       unsigned long gp = (unsigned long) idle->thread_info;
-       unsigned long sp = gp + THREAD_SIZE - 32;
+       unsigned long gp = (unsigned long)task_thread_info(idle);
+       unsigned long sp = __KSTK_TOS(idle);
 
        LAUNCH_SLAVE(cputonasid(cpu),cputoslice(cpu),
                (launch_proc_t)MAPPED_KERN_RW_TO_K0(smp_bootstrap),

diff --git a/arch/mips/sibyte/cfe/smp.c b/arch/mips/sibyte/cfe/smp.c
index e848512..4477af3 100644 (file)
--- a/arch/mips/sibyte/cfe/smp.c
+++ b/arch/mips/sibyte/cfe/smp.c
@@ -60,7 +60,7 @@ void prom_boot_secondary(int cpu, struct task_struct *idle)
 
        retval = cfe_cpu_start(cpu_logical_map(cpu), &smp_bootstrap,
                               __KSTK_TOS(idle),
-                              (unsigned long)idle->thread_info, 0);
+                              (unsigned long)task_thread_info(idle), 0);
        if (retval != 0)
                printk("cfe_start_cpu(%i) returned %i\n" , cpu, retval);
 }