x86: introduce fill_ldt

This patch introduces fill_ldt(), which populates a ldt descriptor
from a user_desc in once, instead of relying in the LDT_entry_a and
LDT_entry_b macros

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 1 insertions, 2 deletions

diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 86c310acc989..f91521e26335 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -457,8 +457,7 @@ static inline void set_32bit_tls(struct task_struct *t, int tls, u32 addr)
         };
         struct desc_struct *desc = (void *)t->thread.tls_array;
         desc += tls;
-        desc->a = LDT_entry_a(&ud);
-        desc->b = LDT_entry_b(&ud);
+        fill_ldt(desc, &ud);
 }
 
 static inline u32 read_32bit_tls(struct task_struct *t, int tls)