Merge branch 'for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
Pull percpu updates from Tejun Heo:
"Minor cleanups"
* 'for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
percpu: clean up of schunk->map[] assignment in pcpu_setup_first_chunk
percpu: update incorrect comment for this_cpu_*() operations
diff --git a/include/linux/percpu-defs.h b/include/linux/percpu-defs.h
index 57f3a1c..8f16299 100644
--- a/include/linux/percpu-defs.h
+++ b/include/linux/percpu-defs.h
@@ -488,10 +488,8 @@
#define __this_cpu_dec_return(pcp) __this_cpu_add_return(pcp, -1)
/*
- * Operations with implied preemption protection. These operations can be
- * used without worrying about preemption. Note that interrupts may still
- * occur while an operation is in progress and if the interrupt modifies
- * the variable too then RMW actions may not be reliable.
+ * Operations with implied preemption/interrupt protection. These
+ * operations can be used without worrying about preemption or interrupt.
*/
#define this_cpu_read(pcp) __pcpu_size_call_return(this_cpu_read_, pcp)
#define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, pcp, val)
diff --git a/mm/percpu.c b/mm/percpu.c
index 2dd7448..a63b4d8 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1668,9 +1668,8 @@
schunk->map[1] = ai->static_size;
schunk->map_used = 1;
if (schunk->free_size)
- schunk->map[++schunk->map_used] = 1 | (ai->static_size + schunk->free_size);
- else
- schunk->map[1] |= 1;
+ schunk->map[++schunk->map_used] = ai->static_size + schunk->free_size;
+ schunk->map[schunk->map_used] |= 1;
/* init dynamic chunk if necessary */
if (dyn_size) {