[PATCH] x86-64: Introduce load_TLS to the "for" loop.
GCC (4.1 at least) unrolls it anyway, but I can't believe this code
was ever justifiable. (I've also submitted a patch which cleans up
i386, which is even uglier).
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>
diff --git a/include/asm-x86_64/desc.h b/include/asm-x86_64/desc.h
index 7726e74..ac991b5 100644
--- a/include/asm-x86_64/desc.h
+++ b/include/asm-x86_64/desc.h
@@ -135,16 +135,13 @@
(info)->useable == 0 && \
(info)->lm == 0)
-#if TLS_SIZE != 24
-# error update this code.
-#endif
-
static inline void load_TLS(struct thread_struct *t, unsigned int cpu)
{
+ unsigned int i;
u64 *gdt = (u64 *)(cpu_gdt(cpu) + GDT_ENTRY_TLS_MIN);
- gdt[0] = t->tls_array[0];
- gdt[1] = t->tls_array[1];
- gdt[2] = t->tls_array[2];
+
+ for (i = 0; i < GDT_ENTRY_TLS_ENTRIES; i++)
+ gdt[i] = t->tls_array[i];
}
/*
