---

yaml --- r: 234300 b: refs/heads/master c: 522d7de h: refs/heads/master v: v3
git-mirror · Mar 11, 2011 · 2aaec06 · 2aaec06
1 parent f5a2042
commit 2aaec06
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Showing 2 changed files with 3 additions and 4 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c0c9ed15042ceac7c485813012a0a97316101b57
+refs/heads/master: 522d7decc0370070448a8c28982c8dfd8970489e
diff --git a/trunk/arch/arm/include/asm/futex.h b/trunk/arch/arm/include/asm/futex.h
@@ -95,7 +95,8 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
 	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
 		return -EFAULT;
 
-	pagefault_disable();	/* implies preempt_disable() */
+	/* Note that preemption is disabled by futex_atomic_cmpxchg_inatomic
+	 * call sites. */
 
 	__asm__ __volatile__("@futex_atomic_cmpxchg_inatomic\n"
 	"1:	" T(ldr) "	%0, [%3]\n"
@@ -115,8 +116,6 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
 	: "r" (oldval), "r" (newval), "r" (uaddr), "Ir" (-EFAULT)
 	: "cc", "memory");
 
-	pagefault_enable();	/* subsumes preempt_enable() */
-
 	return val;
 }