From 54ab5f59b54be7968dd3caf098aa07ef28cfdd44 Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Tue, 11 Dec 2018 13:46:44 +1100
Subject: [PATCH] 
 mm-convert-totalram_pages-and-totalhigh_pages-variables-to-atomic-checkpatch-fixes

WARNING: 'lenght' may be misspelled - perhaps 'length'?
#7:
things.  It was discussed in lenght here,

WARNING: line over 80 characters
#252: FILE: drivers/md/dm-crypt.c:2161:
+	unsigned long pages = (totalram_pages() - totalhigh_pages()) * DM_CRYPT_MEMORY_PERCENT / 100;

WARNING: line over 80 characters
#263: FILE: drivers/md/dm-integrity.c:2846:
+	if (journal_pages >= totalram_pages() - totalhigh_pages() || journal_desc_size > ULONG_MAX) {

WARNING: line over 80 characters
#307: FILE: drivers/parisc/ccio-dma.c:1254:
+	iova_space_size = (u32) (totalram_pages() / count_parisc_driver(&ccio_driver));

WARNING: please, no spaces at the start of a line
#472: FILE: include/linux/highmem.h:47:
+       atomic_long_inc(&_totalhigh_pages);$

WARNING: please, no spaces at the start of a line
#477: FILE: include/linux/highmem.h:52:
+       atomic_long_dec(&_totalhigh_pages);$

WARNING: please, no spaces at the start of a line
#482: FILE: include/linux/highmem.h:57:
+       atomic_long_add(count, &_totalhigh_pages);$

WARNING: please, no spaces at the start of a line
#487: FILE: include/linux/highmem.h:62:
+       atomic_long_set(&_totalhigh_pages, val);$

WARNING: please, no spaces at the start of a line
#511: FILE: include/linux/mm.h:54:
+       return (unsigned long)atomic_long_read(&_totalram_pages);$

WARNING: please, no spaces at the start of a line
#516: FILE: include/linux/mm.h:59:
+       atomic_long_inc(&_totalram_pages);$

WARNING: please, no spaces at the start of a line
#521: FILE: include/linux/mm.h:64:
+       atomic_long_dec(&_totalram_pages);$

WARNING: please, no spaces at the start of a line
#526: FILE: include/linux/mm.h:69:
+       atomic_long_add(count, &_totalram_pages);$

WARNING: please, no spaces at the start of a line
#531: FILE: include/linux/mm.h:74:
+       atomic_long_set(&_totalram_pages, val);$

WARNING: line over 80 characters
#722: FILE: mm/page_alloc.c:7288:
+		(physpages - totalram_pages() - totalcma_pages) << (PAGE_SHIFT - 10),

WARNING: Missing a blank line after declarations
#745: FILE: mm/shmem.c:118:
+	unsigned long nr_pages = totalram_pages();
+	return min(nr_pages - totalhigh_pages(), nr_pages / 2);

total: 0 errors, 15 warnings, 656 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

./patches/mm-convert-totalram_pages-and-totalhigh_pages-variables-to-atomic.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Arun KS <arunks@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 include/linux/highmem.h |  8 ++++----
 include/linux/mm.h      | 10 +++++-----
 mm/shmem.c              |  1 +
 3 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index cea3a0145b431f..ea5cdbd8c2c326 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -44,22 +44,22 @@ static inline unsigned long totalhigh_pages(void)
 
 static inline void totalhigh_pages_inc(void)
 {
-       atomic_long_inc(&_totalhigh_pages);
+	atomic_long_inc(&_totalhigh_pages);
 }
 
 static inline void totalhigh_pages_dec(void)
 {
-       atomic_long_dec(&_totalhigh_pages);
+	atomic_long_dec(&_totalhigh_pages);
 }
 
 static inline void totalhigh_pages_add(long count)
 {
-       atomic_long_add(count, &_totalhigh_pages);
+	atomic_long_add(count, &_totalhigh_pages);
 }
 
 static inline void totalhigh_pages_set(long val)
 {
-       atomic_long_set(&_totalhigh_pages, val);
+	atomic_long_set(&_totalhigh_pages, val);
 }
 
 void kmap_flush_unused(void);
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 10dcd89fb8b4d8..1d2be4c2d34aa9 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -51,27 +51,27 @@ static inline void set_max_mapnr(unsigned long limit) { }
 extern atomic_long_t _totalram_pages;
 static inline unsigned long totalram_pages(void)
 {
-       return (unsigned long)atomic_long_read(&_totalram_pages);
+	return (unsigned long)atomic_long_read(&_totalram_pages);
 }
 
 static inline void totalram_pages_inc(void)
 {
-       atomic_long_inc(&_totalram_pages);
+	atomic_long_inc(&_totalram_pages);
 }
 
 static inline void totalram_pages_dec(void)
 {
-       atomic_long_dec(&_totalram_pages);
+	atomic_long_dec(&_totalram_pages);
 }
 
 static inline void totalram_pages_add(long count)
 {
-       atomic_long_add(count, &_totalram_pages);
+	atomic_long_add(count, &_totalram_pages);
 }
 
 static inline void totalram_pages_set(long val)
 {
-       atomic_long_set(&_totalram_pages, val);
+	atomic_long_set(&_totalram_pages, val);
 }
 
 extern void * high_memory;
diff --git a/mm/shmem.c b/mm/shmem.c
index 1f533b971bf35f..c2381974a18fb4 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -115,6 +115,7 @@ static unsigned long shmem_default_max_blocks(void)
 static unsigned long shmem_default_max_inodes(void)
 {
 	unsigned long nr_pages = totalram_pages();
+
 	return min(nr_pages - totalhigh_pages(), nr_pages / 2);
 }
 #endif