futex: remove the pointer math from double_unlock_hb

Impact: simplify code

I mistakenly included the pointer value ordering in the
double_unlock_hb() in my previous patch. It's only necessary
in the double_lock_hb() function. This patch removes it.

Signed-off-by: Darren Hart <dvhltc@us.ibm.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
LKML-Reference: <20090312221118.11146.68610.stgit@Aeon>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 2 insertions, 8 deletions

diff --git a/kernel/futex.c b/kernel/futex.c
index 9c97f67d298e..2331b73f6932 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -658,14 +658,8 @@ double_lock_hb(struct futex_hash_bucket *hb1, struct futex_hash_bucket *hb2)
 static inline void
 double_unlock_hb(struct futex_hash_bucket *hb1, struct futex_hash_bucket *hb2)
 {
-        if (hb1 <= hb2) {
-                spin_unlock(&hb2->lock);
-                if (hb1 < hb2)
-                        spin_unlock(&hb1->lock);
-        } else { /* hb1 > hb2 */
-                spin_unlock(&hb1->lock);
-                spin_unlock(&hb2->lock);
-        }
+        spin_unlock(&hb1->lock);
+        spin_unlock(&hb2->lock);
 }
 
 /*