x86: convert mm_context_t semaphore to a mutex

convert mm_context_t semaphore to a mutex.

Signed-off-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index d84314ce22bb..6555c3d14371 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -105,7 +105,7 @@ static inline unsigned long get_segment_eip(struct pt_regs *regs,
            LDT and other horrors are only used in user space. */
         if (seg & (1<<2)) {
                 /* Must lock the LDT while reading it. */
-                down(&current->mm->context.sem);
+                mutex_lock(&current->mm->context.lock);
                 desc = current->mm->context.ldt;
                 desc = (void *)desc + (seg & ~7);
         } else {
@@ -118,7 +118,7 @@ static inline unsigned long get_segment_eip(struct pt_regs *regs,
         base = get_desc_base((unsigned long *)desc);
 
         if (seg & (1<<2)) { 
-                up(&current->mm->context.sem);
+                mutex_unlock(&current->mm->context.lock);
         } else
                 put_cpu();