Patch "x86/mm/64: Rename the register_page_bootmem_memmap() 'size' parameter to 'nr_pages'" has been added to the 4.14-stable tree

Patch "x86/mm/64: Rename the register_page_bootmem_memmap() 'size' parameter to 'nr_pages'" has been added to the 4.14-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    x86/mm/64: Rename the register_page_bootmem_memmap() 'size' parameter to 'nr_pages'

to the 4.14-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     x86-mm-64-rename-the-register_page_bootmem_memmap-size-parameter-to-nr_pages.patch
and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 15670bfe19905b1dcbb63137f40d718b59d84479 Mon Sep 17 00:00:00 2001
From: Baoquan He <bhe@redhat.com>
Date: Sat, 28 Oct 2017 09:30:38 +0800
Subject: x86/mm/64: Rename the register_page_bootmem_memmap() 'size' parameter to 'nr_pages'

From: Baoquan He <bhe@redhat.com>

commit 15670bfe19905b1dcbb63137f40d718b59d84479 upstream.

register_page_bootmem_memmap()'s 3rd 'size' parameter is named
in a somewhat misleading fashion - rename it to 'nr_pages' which
makes the units of it much clearer.

Meanwhile rename the existing local variable 'nr_pages' to
'nr_pmd_pages', a more expressive name, to avoid conflict with
new function parameter 'nr_pages'.

(Also clean up the unnecessary parentheses in which get_order() is called.)

Signed-off-by: Baoquan He <bhe@redhat.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: akpm@linux-foundation.org
Link: http://lkml.kernel.org/r/1509154238-23250-1-git-send-email-bhe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/x86/mm/init_64.c |   10 +++++-----
 include/linux/mm.h    |    2 +-
 2 files changed, 6 insertions(+), 6 deletions(-)

--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -1426,16 +1426,16 @@ int __meminit vmemmap_populate(unsigned
 
 #if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) && defined(CONFIG_HAVE_BOOTMEM_INFO_NODE)
 void register_page_bootmem_memmap(unsigned long section_nr,
-				  struct page *start_page, unsigned long size)
+				  struct page *start_page, unsigned long nr_pages)
 {
 	unsigned long addr = (unsigned long)start_page;
-	unsigned long end = (unsigned long)(start_page + size);
+	unsigned long end = (unsigned long)(start_page + nr_pages);
 	unsigned long next;
 	pgd_t *pgd;
 	p4d_t *p4d;
 	pud_t *pud;
 	pmd_t *pmd;
-	unsigned int nr_pages;
+	unsigned int nr_pmd_pages;
 	struct page *page;
 
 	for (; addr < end; addr = next) {
@@ -1482,9 +1482,9 @@ void register_page_bootmem_memmap(unsign
 			if (pmd_none(*pmd))
 				continue;
 
-			nr_pages = 1 << (get_order(PMD_SIZE));
+			nr_pmd_pages = 1 << get_order(PMD_SIZE);
 			page = pmd_page(*pmd);
-			while (nr_pages--)
+			while (nr_pmd_pages--)
 				get_page_bootmem(section_nr, page++,
 						 SECTION_INFO);
 		}
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2510,7 +2510,7 @@ void vmemmap_populate_print_last(void);
 void vmemmap_free(unsigned long start, unsigned long end);
 #endif
 void register_page_bootmem_memmap(unsigned long section_nr, struct page *map,
-				  unsigned long size);
+				  unsigned long nr_pages);
 
 enum mf_flags {
 	MF_COUNT_INCREASED = 1 << 0,


Patches currently in stable-queue which might be from bhe@redhat.com are

queue-4.14/x86-mm-64-rename-the-register_page_bootmem_memmap-size-parameter-to-nr_pages.patch