locking, ARM: Annotate low level hw locks as raw

Annotate the low level hardware locks which must not be preempted.

In mainline this change documents the low level nature of
the lock - otherwise there's no functional difference. Lockdep
and Sparse checking will work as usual.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 5 insertions, 5 deletions

diff --git a/arch/arm/mm/copypage-v6.c b/arch/arm/mm/copypage-v6.c
index 63cca009713..3d9a1552cef 100644
--- a/arch/arm/mm/copypage-v6.c
+++ b/arch/arm/mm/copypage-v6.c
@@ -27,7 +27,7 @@
 #define from_address    (0xffff8000)
 #define to_address      (0xffffc000)
 
-static DEFINE_SPINLOCK(v6_lock);
+static DEFINE_RAW_SPINLOCK(v6_lock);
 
 /*
  * Copy the user page.  No aliasing to deal with so we can just
@@ -88,7 +88,7 @@ static void v6_copy_user_highpage_aliasing(struct page *to,
          * Now copy the page using the same cache colour as the
          * pages ultimate destination.
          */
-        spin_lock(&v6_lock);
+        raw_spin_lock(&v6_lock);
 
         set_pte_ext(TOP_PTE(from_address) + offset, pfn_pte(page_to_pfn(from), PAGE_KERNEL), 0);
         set_pte_ext(TOP_PTE(to_address) + offset, pfn_pte(page_to_pfn(to), PAGE_KERNEL), 0);
@@ -101,7 +101,7 @@ static void v6_copy_user_highpage_aliasing(struct page *to,
 
         copy_page((void *)kto, (void *)kfrom);
 
-        spin_unlock(&v6_lock);
+        raw_spin_unlock(&v6_lock);
 }
 
 /*
@@ -121,13 +121,13 @@ static void v6_clear_user_highpage_aliasing(struct page *page, unsigned long vad
          * Now clear the page using the same cache colour as
          * the pages ultimate destination.
          */
-        spin_lock(&v6_lock);
+        raw_spin_lock(&v6_lock);
 
         set_pte_ext(TOP_PTE(to_address) + offset, pfn_pte(page_to_pfn(page), PAGE_KERNEL), 0);
         flush_tlb_kernel_page(to);
         clear_page((void *)to);
 
-        spin_unlock(&v6_lock);
+        raw_spin_unlock(&v6_lock);
 }
 
 struct cpu_user_fns v6_user_fns __initdata = {