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authorPetr Tesarik <ptesarik@suse.cz>2008-02-11 22:43:05 +0100
committerTony Luck <tony.luck@intel.com>2008-03-05 15:48:47 -0800
commiteac738e6cea16bfbd7b9018d60d009aedd2d14b6 (patch)
tree479a44d5e39403cfb57432aa57b2d0cfed90f41f
parente868a55c2a8cb72b66d7137fbcc54b82016e98eb (diff)
downloadop-kernel-dev-eac738e6cea16bfbd7b9018d60d009aedd2d14b6.zip
op-kernel-dev-eac738e6cea16bfbd7b9018d60d009aedd2d14b6.tar.gz
[IA64] convert sys_ptrace to arch_ptrace
Convert sys_ptrace() to arch_ptrace(). Signed-off-by: Petr Tesarik <ptesarik@suse.cz> Signed-off-by: Tony Luck <tony.luck@intel.com>
-rw-r--r--arch/ia64/kernel/ptrace.c42
-rw-r--r--include/asm-ia64/ptrace.h2
2 files changed, 3 insertions, 41 deletions
diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c
index e82fe29..1dfff5a 100644
--- a/arch/ia64/kernel/ptrace.c
+++ b/arch/ia64/kernel/ptrace.c
@@ -1470,46 +1470,13 @@ ptrace_disable (struct task_struct *child)
child_psr->tb = 0;
}
-asmlinkage long
-sys_ptrace (long request, pid_t pid, unsigned long addr, unsigned long data)
+long
+arch_ptrace (struct task_struct *child, long request, long addr, long data)
{
struct pt_regs *pt;
- struct task_struct *child;
struct switch_stack *sw;
long ret;
- lock_kernel();
- ret = -EPERM;
- if (request == PTRACE_TRACEME) {
- ret = ptrace_traceme();
- goto out;
- }
-
- ret = -ESRCH;
- read_lock(&tasklist_lock);
- {
- child = find_task_by_pid(pid);
- if (child)
- get_task_struct(child);
- }
- read_unlock(&tasklist_lock);
- if (!child)
- goto out;
- ret = -EPERM;
- if (pid == 1) /* no messing around with init! */
- goto out_tsk;
-
- if (request == PTRACE_ATTACH) {
- ret = ptrace_attach(child);
- if (!ret)
- arch_ptrace_attach(child);
- goto out_tsk;
- }
-
- ret = ptrace_check_attach(child, request == PTRACE_KILL);
- if (ret < 0)
- goto out_tsk;
-
pt = task_pt_regs(child);
sw = (struct switch_stack *) (child->thread.ksp + 16);
@@ -1594,7 +1561,7 @@ sys_ptrace (long request, pid_t pid, unsigned long addr, unsigned long data)
*/
if (child->exit_state == EXIT_ZOMBIE)
/* already dead */
- goto out_tsk;
+ return 0;
child->exit_code = SIGKILL;
ptrace_disable(child);
@@ -1643,9 +1610,6 @@ sys_ptrace (long request, pid_t pid, unsigned long addr, unsigned long data)
goto out_tsk;
}
out_tsk:
- put_task_struct(child);
- out:
- unlock_kernel();
return ret;
}
diff --git a/include/asm-ia64/ptrace.h b/include/asm-ia64/ptrace.h
index 0bdce7d..5b52340 100644
--- a/include/asm-ia64/ptrace.h
+++ b/include/asm-ia64/ptrace.h
@@ -233,8 +233,6 @@ struct switch_stack {
#include <asm/current.h>
#include <asm/page.h>
-#define __ARCH_SYS_PTRACE 1
-
/*
* We use the ia64_psr(regs)->ri to determine which of the three
* instructions in bundle (16 bytes) took the sample. Generate
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