[PATCH] i386: cleanup GDT Access

Now we have an explicit per-cpu GDT variable, we don't need to keep the
descriptors around to use them to find the GDT: expose cpu_gdt directly.

We could go further and make load_gdt() pack the descriptor for us, or even
assume it means "load the current cpu's GDT" which is what it always does.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

1 files changed, 1 insertions, 2 deletions

diff --git a/arch/i386/kernel/entry.S b/arch/i386/kernel/entry.S
index 922cc38dc405..c61c6b67e856 100644
--- a/arch/i386/kernel/entry.S
+++ b/arch/i386/kernel/entry.S
@@ -561,8 +561,7 @@ END(syscall_badsys)
 #define FIXUP_ESPFIX_STACK \
         /* since we are on a wrong stack, we cant make it a C code :( */ \
         movl %fs:PDA_cpu, %ebx; \
-        PER_CPU(cpu_gdt_descr, %ebx); \
-        movl GDS_address(%ebx), %ebx; \
+        PER_CPU(cpu_gdt, %ebx); \
         GET_DESC_BASE(GDT_ENTRY_ESPFIX_SS, %ebx, %eax, %ax, %al, %ah); \
         addl %esp, %eax; \
         pushl $__KERNEL_DS; \