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authorAl Viro <viro@ftp.linux.org.uk>2006-01-12 01:05:36 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-12 09:08:50 -0800
commit27f451304aa6f2bccf34ef3c2b049c01d05d6fff (patch)
treef4593b303847acb33885ea2638c5ef96a82945dd
parent37bfbaf995d2c1f8196ee04c9d6f68258d5ec3e8 (diff)
[PATCH] alpha: task_stack_page()
use task_stack_page() for accesses to stack page of task in alpha-specific parts of tree 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>
-rw-r--r--arch/alpha/kernel/process.c6
-rw-r--r--arch/alpha/kernel/ptrace.c2
-rw-r--r--include/asm-alpha/ptrace.h2
3 files changed, 5 insertions, 5 deletions
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index 7acad705508..982d732a870 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -276,7 +276,7 @@ copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
{
extern void ret_from_fork(void);
- struct thread_info *childti = p->thread_info;
+ struct thread_info *childti = task_thread_info(p);
struct pt_regs * childregs;
struct switch_stack * childstack, *stack;
unsigned long stack_offset, settls;
@@ -285,7 +285,7 @@ copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
if (!(regs->ps & 8))
stack_offset = (PAGE_SIZE-1) & (unsigned long) regs;
childregs = (struct pt_regs *)
- (stack_offset + PAGE_SIZE + (long) childti);
+ (stack_offset + PAGE_SIZE + task_stack_page(p));
*childregs = *regs;
settls = regs->r20;
@@ -492,7 +492,7 @@ out:
unsigned long
thread_saved_pc(task_t *t)
{
- unsigned long base = (unsigned long)t->thread_info;
+ unsigned long base = (unsigned long)task_stack_page(t);
unsigned long fp, sp = task_thread_info(t)->pcb.ksp;
if (sp > base && sp+6*8 < base + 16*1024) {
diff --git a/arch/alpha/kernel/ptrace.c b/arch/alpha/kernel/ptrace.c
index 961008c3d42..9069281313a 100644
--- a/arch/alpha/kernel/ptrace.c
+++ b/arch/alpha/kernel/ptrace.c
@@ -110,7 +110,7 @@ get_reg_addr(struct task_struct * task, unsigned long regno)
zero = 0;
addr = &zero;
} else {
- addr = (void *)task->thread_info + regoff[regno];
+ addr = task_stack_page(task) + regoff[regno];
}
return addr;
}
diff --git a/include/asm-alpha/ptrace.h b/include/asm-alpha/ptrace.h
index 072375c135b..994680b73a8 100644
--- a/include/asm-alpha/ptrace.h
+++ b/include/asm-alpha/ptrace.h
@@ -76,7 +76,7 @@ struct switch_stack {
extern void show_regs(struct pt_regs *);
#define alpha_task_regs(task) \
- ((struct pt_regs *) ((long) (task)->thread_info + 2*PAGE_SIZE) - 1)
+ ((struct pt_regs *) (task_stack_page(task) + 2*PAGE_SIZE) - 1)
#define force_successful_syscall_return() (alpha_task_regs(current)->r0 = 0)