+ mm-remove-redundant-k-macro-definition.patch added to mm-unstable branch

[Andrew Morton <akpm@linux-foundation.org>]

The patch titled
     Subject: mm: remove redundant K() macro definition
has been added to the -mm mm-unstable branch.  Its filename is
     mm-remove-redundant-k-macro-definition.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-remove-redundant-k-macro-definition.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: ZhangPeng <zhangpeng362@huawei.com>
Subject: mm: remove redundant K() macro definition
Date: Fri, 4 Aug 2023 09:25:53 +0800

Patch series "cleanup with helper macro K()".

Use helper macro K() to improve code readability.  No functional
modification involved.  Remove redundant K() macro definition.


This patch (of 7):

Since commit eb8589b4f8c1 ("mm: move mem_init_print_info() to mm_init.c"),
the K() macro definition has been moved to mm/internal.h.  Therefore, the
definitions in mm/memcontrol.c, mm/backing-dev.c and mm/oom_kill.c are
redundant.  Drop redundant definitions.

Link: https://lkml.kernel.org/r/20230804012559.2617515-1-zhangpeng362@huawei.com
Link: https://lkml.kernel.org/r/20230804012559.2617515-2-zhangpeng362@huawei.com
Signed-off-by: ZhangPeng <zhangpeng362@huawei.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Nanyong Sun <sunnanyong@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/backing-dev.c |    3 +--
 mm/memcontrol.c  |    1 -
 mm/oom_kill.c    |    2 --
 3 files changed, 1 insertion(+), 5 deletions(-)

--- a/mm/backing-dev.c~mm-remove-redundant-k-macro-definition
+++ a/mm/backing-dev.c
@@ -16,6 +16,7 @@
 #include <linux/writeback.h>
 #include <linux/device.h>
 #include <trace/events/writeback.h>
+#include "internal.h"
 
 struct backing_dev_info noop_backing_dev_info;
 EXPORT_SYMBOL_GPL(noop_backing_dev_info);
@@ -34,8 +35,6 @@ LIST_HEAD(bdi_list);
 /* bdi_wq serves all asynchronous writeback tasks */
 struct workqueue_struct *bdi_wq;
 
-#define K(x) ((x) << (PAGE_SHIFT - 10))
-
 #ifdef CONFIG_DEBUG_FS
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
--- a/mm/memcontrol.c~mm-remove-redundant-k-macro-definition
+++ a/mm/memcontrol.c
@@ -1626,7 +1626,6 @@ static void memory_stat_format(struct me
 	WARN_ON_ONCE(seq_buf_has_overflowed(s));
 }
 
-#define K(x) ((x) << (PAGE_SHIFT-10))
 /**
  * mem_cgroup_print_oom_context: Print OOM information relevant to
  * memory controller.
--- a/mm/oom_kill.c~mm-remove-redundant-k-macro-definition
+++ a/mm/oom_kill.c
@@ -479,8 +479,6 @@ static DECLARE_WAIT_QUEUE_HEAD(oom_victi
 
 static bool oom_killer_disabled __read_mostly;
 
-#define K(x) ((x) << (PAGE_SHIFT-10))
-
 /*
  * task->mm can be NULL if the task is the exited group leader.  So to
  * determine whether the task is using a particular mm, we examine all the
_

Patches currently in -mm which might be from zhangpeng362@huawei.com are

mm-use-a-folio-in-fault_dirty_shared_page.patch
mm-remove-page_rmapping.patch
mm-page_io-remove-unneeded-clearpageuptodate.patch
mm-page_io-remove-unneeded-setpageerror.patch
mm-page_io-introduce-bio_first_folio_all.patch
mm-page_io-use-a-folio-in-__end_swap_bio_write.patch
mm-page_io-use-a-folio-in-__end_swap_bio_read.patch
mm-page_io-use-a-folio-in-sio_read_complete.patch
mm-page_io-use-a-folio-in-swap_writepage_bdev_sync.patch
mm-page_io-use-a-folio-in-swap_writepage_bdev_async.patch
mm-page_io-convert-count_swpout_vm_event-to-take-in-a-folio.patch
mm-page_io-convert-bio_associate_blkg_from_page-to-take-in-a-folio.patch
mm-kmsan-use-helper-function-page_size.patch
mm-kmsan-use-helper-macro-offset_in_page.patch
mm-kmsan-use-helper-macros-page_align-and-page_align_down.patch
mm-remove-redundant-k-macro-definition.patch
mm-swapfilec-use-helper-macro-k.patch
mm-swap_statec-use-helper-macro-k.patch
mm-shmemc-use-helper-macro-k.patch
mm-nommuc-use-helper-macro-k.patch
mm-mmapc-use-helper-macro-k.patch
mm-hugetlbc-use-helper-macro-k.patch