+ percpu_counter-use-helper-macro-abs.patch added to -mm tree

+ percpu_counter-use-helper-macro-abs.patch added to -mm tree

[akpm]

The patch titled
     Subject: lib/percpu_counter.c: use helper macro abs()
has been added to the -mm tree.  Its filename is
     percpu_counter-use-helper-macro-abs.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/percpu_counter-use-helper-macro-abs.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/percpu_counter-use-helper-macro-abs.patch

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------------------------------------------------------
From: Miaohe Lin <linmiaohe@huawei.com>
Subject: lib/percpu_counter.c: use helper macro abs()

Use helper macro abs() to simplify the "x >= t || x <= -t" cmp.

Link: https://lkml.kernel.org/r/20200927122746.5964-1-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 lib/percpu_counter.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/lib/percpu_counter.c~percpu_counter-use-helper-macro-abs
+++ a/lib/percpu_counter.c
@@ -85,7 +85,7 @@ void percpu_counter_add_batch(struct per
 
 	preempt_disable();
 	count = __this_cpu_read(*fbc->counters) + amount;
-	if (count >= batch || count <= -batch) {
+	if (abs(count) >= batch) {
 		unsigned long flags;
 		raw_spin_lock_irqsave(&fbc->lock, flags);
 		fbc->count += count;
_

Patches currently in -mm which might be from linmiaohe@huawei.com are

mm-swap-fix-confusing-comment-in-release_pages.patch
mm-swap_slotsc-remove-always-zero-and-unused-return-value-of-enable_swap_slots_cache.patch
mm-remove-useless-out-label-in-__swap_writepage.patch
mm-memcontrol-correct-the-comment-of-mem_cgroup_iter.patch
mm-page_counter-correct-the-obsolete-func-name-in-the-comment-of-page_counter_try_charge.patch
mm-memcontrol-remove-obsolete-comment-of-mem_cgroup_unmark_under_oom.patch
mm-use-helper-function-mapping_allow_writable.patch
mm-mmap-use-helper-function-allow_write_access-in-__remove_shared_vm_struct.patch
mm-mempool-add-else-to-split-mutually-exclusive-case.patch
mm-vmstat-use-helper-macro-abs.patch
mm-fix-some-broken-comments.patch
mm-use-helper-function-put_write_access.patch
percpu_counter-use-helper-macro-abs.patch
mm-migrate-avoid-possible-unnecessary-process-right-check-in-kernel_move_pages.patch