From: Al Viro <viro@ftp.linux.org.uk>
To: torvalds@osdl.org
Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org
Subject: [PATCH 03/50] alpha: task_stack_page()
Date: Tue, 03 Jan 2006 21:07:38 +0000 [thread overview]
Message-ID: <E1EttNa-0008PI-4d@ZenIV.linux.org.uk> (raw)
References: <20060103210515.5135@ftp.linux.org.uk>
In-Reply-To: <20060103210515.5135@ftp.linux.org.uk>
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>
---
arch/alpha/kernel/process.c | 6 +++---
arch/alpha/kernel/ptrace.c | 2 +-
include/asm-alpha/ptrace.h | 2 +-
3 files changed, 5 insertions(+), 5 deletions(-)
87f43fe7d9b15cb3f6533391a249adcdab8effea
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index f15a456..04c5342 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -271,7 +271,7 @@ copy_thread(int nr, unsigned long clone_
{
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;
@@ -280,7 +280,7 @@ copy_thread(int nr, unsigned long clone_
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;
@@ -487,7 +487,7 @@ 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 c83ce5d..67c0cb6 100644
--- a/arch/alpha/kernel/ptrace.c
+++ b/arch/alpha/kernel/ptrace.c
@@ -110,7 +110,7 @@ get_reg_addr(struct task_struct * task,
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 072375c..994680b 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)
--
0.99.9.GIT
reply other threads:[~2006-01-03 21:07 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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