x86: convert mm_context_t semaphore to a mutex

[linux-2.6-omap-h63xx.git] / arch / x86 / kernel / ptrace_64.c

diff --git a/arch/x86/kernel/ptrace_64.c b/arch/x86/kernel/ptrace_64.c
index 86321ee6da934a9803d8ee8c24e1dc9535e3537c..607085f3f08a3359526df4ff6cfe745a1e92fa98 100644 (file)
--- a/arch/x86/kernel/ptrace_64.c
+++ b/arch/x86/kernel/ptrace_64.c
@@ -103,7 +103,7 @@ unsigned long convert_rip_to_linear(struct task_struct *child, struct pt_regs *r
 
                seg &= ~7UL;
 
-               down(&child->mm->context.sem);
+               mutex_lock(&child->mm->context.lock);
                if (unlikely((seg >> 3) >= child->mm->context.size))
                        addr = -1L; /* bogus selector, access would fault */
                else {
@@ -117,7 +117,7 @@ unsigned long convert_rip_to_linear(struct task_struct *child, struct pt_regs *r
                                addr &= 0xffff;
                        addr += base;
                }
-               up(&child->mm->context.sem);
+               mutex_unlock(&child->mm->context.lock);
        }
 
        return addr;