* [PATCH] x86/mm/64: Rename the argument 'size' as 'nr_pages' in register_page_bootmem_memmap
@ 2017-10-24 12:47 Baoquan He
2017-10-24 13:29 ` Ingo Molnar
2017-10-26 6:33 ` [PATCH] x86/mm/64: Rename the argument 'size' as 'nr_pages' in register_page_bootmem_memmap kbuild test robot
0 siblings, 2 replies; 7+ messages in thread
From: Baoquan He @ 2017-10-24 12:47 UTC (permalink / raw)
To: linux-kernel; +Cc: akpm, x86, Baoquan He
For register_page_bootmem_memmap(), the 3rd argument 'size' indicates
the number of pages which are inside the memory section, not a size.
Signed-off-by: Baoquan He <bhe@redhat.com>
---
arch/x86/mm/init_64.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 048fbe8fc274..f5aa0d7c4cd1 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -1426,10 +1426,10 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node)
#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;
--
2.5.5
^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [PATCH] x86/mm/64: Rename the argument 'size' as 'nr_pages' in register_page_bootmem_memmap
2017-10-24 12:47 [PATCH] x86/mm/64: Rename the argument 'size' as 'nr_pages' in register_page_bootmem_memmap Baoquan He
@ 2017-10-24 13:29 ` Ingo Molnar
2017-10-24 13:34 ` Baoquan He
2017-10-27 15:51 ` [PATCH] x86/mm/64: Rename the register_page_bootmem_memmap() 'size' parameter to 'nr_pages' kbuild test robot
2017-10-26 6:33 ` [PATCH] x86/mm/64: Rename the argument 'size' as 'nr_pages' in register_page_bootmem_memmap kbuild test robot
1 sibling, 2 replies; 7+ messages in thread
From: Ingo Molnar @ 2017-10-24 13:29 UTC (permalink / raw)
To: Baoquan He; +Cc: linux-kernel, akpm, x86
* Baoquan He <bhe@redhat.com> wrote:
> For register_page_bootmem_memmap(), the 3rd argument 'size' indicates
> the number of pages which are inside the memory section, not a size.
>
> Signed-off-by: Baoquan He <bhe@redhat.com>
> ---
> arch/x86/mm/init_64.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
> index 048fbe8fc274..f5aa0d7c4cd1 100644
> --- a/arch/x86/mm/init_64.c
> +++ b/arch/x86/mm/init_64.c
> @@ -1426,10 +1426,10 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node)
>
> #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;
This doesn't build on x86-64 allyesconfig:
arch/x86/mm/init_64.c: In function ‘register_page_bootmem_memmap’:
arch/x86/mm/init_64.c:1438:15: error: ‘nr_pages’ redeclared as different kind of symbol
arch/x86/mm/init_64.c:1429:46: note: previous definition of ‘nr_pages’ was here
Also note that I improved the changelog (see below), could you please pick those
changes up for a v2 submission?
Thanks,
Ingo
==================>
>From 67780ebe5c99190d2a946de106bd0c7b83e11b68 Mon Sep 17 00:00:00 2001
From: Baoquan He <bhe@redhat.com>
Date: Tue, 24 Oct 2017 20:47:29 +0800
Subject: [PATCH] x86/mm/64: Rename the register_page_bootmem_memmap() 'size' parameter to 'nr_pages'
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.
Signed-off-by: Baoquan He <bhe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: akpm@linux-foundation.org
Link: http://lkml.kernel.org/r/1508849249-18035-1-git-send-email-bhe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/x86/mm/init_64.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 048fbe8fc274..f5aa0d7c4cd1 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -1426,10 +1426,10 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node)
#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;
^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [PATCH] x86/mm/64: Rename the argument 'size' as 'nr_pages' in register_page_bootmem_memmap
2017-10-24 13:29 ` Ingo Molnar
@ 2017-10-24 13:34 ` Baoquan He
2017-10-27 15:51 ` [PATCH] x86/mm/64: Rename the register_page_bootmem_memmap() 'size' parameter to 'nr_pages' kbuild test robot
1 sibling, 0 replies; 7+ messages in thread
From: Baoquan He @ 2017-10-24 13:34 UTC (permalink / raw)
To: Ingo Molnar; +Cc: linux-kernel, akpm, x86
Hi Ingo,
On 10/24/17 at 03:29pm, Ingo Molnar wrote:
> > diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
> > index 048fbe8fc274..f5aa0d7c4cd1 100644
> > --- a/arch/x86/mm/init_64.c
> > +++ b/arch/x86/mm/init_64.c
> > @@ -1426,10 +1426,10 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node)
> >
> > #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;
>
> This doesn't build on x86-64 allyesconfig:
>
> arch/x86/mm/init_64.c: In function ‘register_page_bootmem_memmap’:
> arch/x86/mm/init_64.c:1438:15: error: ‘nr_pages’ redeclared as different kind of symbol
> arch/x86/mm/init_64.c:1429:46: note: previous definition of ‘nr_pages’ was here
>
> Also note that I improved the changelog (see below), could you please pick those
> changes up for a v2 submission?
Thanks a lot for checking this and rewrote the change log. Seems I
didn't merge the change in mm.h. Will make v2 with your patch log
changes and repost after testing.
Thanks
Baoquan
>
>
> ==================>
> From 67780ebe5c99190d2a946de106bd0c7b83e11b68 Mon Sep 17 00:00:00 2001
> From: Baoquan He <bhe@redhat.com>
> Date: Tue, 24 Oct 2017 20:47:29 +0800
> Subject: [PATCH] x86/mm/64: Rename the register_page_bootmem_memmap() 'size' parameter to 'nr_pages'
>
> 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.
>
> Signed-off-by: Baoquan He <bhe@redhat.com>
> Cc: Linus Torvalds <torvalds@linux-foundation.org>
> Cc: Peter Zijlstra <peterz@infradead.org>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: akpm@linux-foundation.org
> Link: http://lkml.kernel.org/r/1508849249-18035-1-git-send-email-bhe@redhat.com
> Signed-off-by: Ingo Molnar <mingo@kernel.org>
> ---
> arch/x86/mm/init_64.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
> index 048fbe8fc274..f5aa0d7c4cd1 100644
> --- a/arch/x86/mm/init_64.c
> +++ b/arch/x86/mm/init_64.c
> @@ -1426,10 +1426,10 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node)
>
> #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;
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH] x86/mm/64: Rename the argument 'size' as 'nr_pages' in register_page_bootmem_memmap
2017-10-24 12:47 [PATCH] x86/mm/64: Rename the argument 'size' as 'nr_pages' in register_page_bootmem_memmap Baoquan He
2017-10-24 13:29 ` Ingo Molnar
@ 2017-10-26 6:33 ` kbuild test robot
2017-10-26 6:58 ` Baoquan He
1 sibling, 1 reply; 7+ messages in thread
From: kbuild test robot @ 2017-10-26 6:33 UTC (permalink / raw)
To: Baoquan He; +Cc: kbuild-all, linux-kernel, akpm, x86, Baoquan He
[-- Attachment #1: Type: text/plain, Size: 6452 bytes --]
Hi Baoquan,
[auto build test ERROR on tip/x86/core]
[also build test ERROR on v4.14-rc6 next-20171018]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Baoquan-He/x86-mm-64-Rename-the-argument-size-as-nr_pages-in-register_page_bootmem_memmap/20171026-125956
config: x86_64-allyesconfig (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64
All errors (new ones prefixed by >>):
arch/x86//mm/init_64.c: In function 'register_page_bootmem_memmap':
>> arch/x86//mm/init_64.c:1341:15: error: 'nr_pages' redeclared as different kind of symbol
unsigned int nr_pages;
^~~~~~~~
arch/x86//mm/init_64.c:1332:46: note: previous definition of 'nr_pages' was here
struct page *start_page, unsigned long nr_pages)
^~~~~~~~
vim +/nr_pages +1341 arch/x86//mm/init_64.c
c2b91e2ee Yinghai Lu 2008-04-12 1329
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1330 #if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) && defined(CONFIG_HAVE_BOOTMEM_INFO_NODE)
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1331 void register_page_bootmem_memmap(unsigned long section_nr,
b5f7b7e8b Baoquan He 2017-10-24 1332 struct page *start_page, unsigned long nr_pages)
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1333 {
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1334 unsigned long addr = (unsigned long)start_page;
b5f7b7e8b Baoquan He 2017-10-24 1335 unsigned long end = (unsigned long)(start_page + nr_pages);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1336 unsigned long next;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1337 pgd_t *pgd;
f2a6a7050 Kirill A. Shutemov 2017-03-17 1338 p4d_t *p4d;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1339 pud_t *pud;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1340 pmd_t *pmd;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 @1341 unsigned int nr_pages;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1342 struct page *page;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1343
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1344 for (; addr < end; addr = next) {
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1345 pte_t *pte = NULL;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1346
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1347 pgd = pgd_offset_k(addr);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1348 if (pgd_none(*pgd)) {
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1349 next = (addr + PAGE_SIZE) & PAGE_MASK;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1350 continue;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1351 }
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1352 get_page_bootmem(section_nr, pgd_page(*pgd), MIX_SECTION_INFO);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1353
f2a6a7050 Kirill A. Shutemov 2017-03-17 1354 p4d = p4d_offset(pgd, addr);
f2a6a7050 Kirill A. Shutemov 2017-03-17 1355 if (p4d_none(*p4d)) {
f2a6a7050 Kirill A. Shutemov 2017-03-17 1356 next = (addr + PAGE_SIZE) & PAGE_MASK;
f2a6a7050 Kirill A. Shutemov 2017-03-17 1357 continue;
f2a6a7050 Kirill A. Shutemov 2017-03-17 1358 }
f2a6a7050 Kirill A. Shutemov 2017-03-17 1359 get_page_bootmem(section_nr, p4d_page(*p4d), MIX_SECTION_INFO);
f2a6a7050 Kirill A. Shutemov 2017-03-17 1360
f2a6a7050 Kirill A. Shutemov 2017-03-17 1361 pud = pud_offset(p4d, addr);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1362 if (pud_none(*pud)) {
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1363 next = (addr + PAGE_SIZE) & PAGE_MASK;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1364 continue;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1365 }
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1366 get_page_bootmem(section_nr, pud_page(*pud), MIX_SECTION_INFO);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1367
16bf92261 Borislav Petkov 2016-03-29 1368 if (!boot_cpu_has(X86_FEATURE_PSE)) {
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1369 next = (addr + PAGE_SIZE) & PAGE_MASK;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1370 pmd = pmd_offset(pud, addr);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1371 if (pmd_none(*pmd))
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1372 continue;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1373 get_page_bootmem(section_nr, pmd_page(*pmd),
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1374 MIX_SECTION_INFO);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1375
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1376 pte = pte_offset_kernel(pmd, addr);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1377 if (pte_none(*pte))
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1378 continue;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1379 get_page_bootmem(section_nr, pte_page(*pte),
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1380 SECTION_INFO);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1381 } else {
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1382 next = pmd_addr_end(addr, end);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1383
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1384 pmd = pmd_offset(pud, addr);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1385 if (pmd_none(*pmd))
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1386 continue;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1387
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1388 nr_pages = 1 << (get_order(PMD_SIZE));
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1389 page = pmd_page(*pmd);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1390 while (nr_pages--)
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1391 get_page_bootmem(section_nr, page++,
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1392 SECTION_INFO);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1393 }
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1394 }
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1395 }
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1396 #endif
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1397
:::::: The code at line 1341 was first introduced by commit
:::::: 46723bfa540f0a1e494476a1734d03626a0bd1e0 memory-hotplug: implement register_page_bootmem_info_section of sparse-vmemmap
:::::: TO: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 59282 bytes --]
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH] x86/mm/64: Rename the argument 'size' as 'nr_pages' in register_page_bootmem_memmap
2017-10-26 6:33 ` [PATCH] x86/mm/64: Rename the argument 'size' as 'nr_pages' in register_page_bootmem_memmap kbuild test robot
@ 2017-10-26 6:58 ` Baoquan He
0 siblings, 0 replies; 7+ messages in thread
From: Baoquan He @ 2017-10-26 6:58 UTC (permalink / raw)
To: kbuild test robot; +Cc: kbuild-all, linux-kernel, akpm, x86
On 10/26/17 at 02:33pm, kbuild test robot wrote:
> Hi Baoquan,
>
> [auto build test ERROR on tip/x86/core]
> [also build test ERROR on v4.14-rc6 next-20171018]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
>
> url: https://github.com/0day-ci/linux/commits/Baoquan-He/x86-mm-64-Rename-the-argument-size-as-nr_pages-in-register_page_bootmem_memmap/20171026-125956
> config: x86_64-allyesconfig (attached as .config)
> compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
> reproduce:
> # save the attached .config to linux build tree
> make ARCH=x86_64
>
> All errors (new ones prefixed by >>):
>
> arch/x86//mm/init_64.c: In function 'register_page_bootmem_memmap':
> >> arch/x86//mm/init_64.c:1341:15: error: 'nr_pages' redeclared as different kind of symbol
> unsigned int nr_pages;
> ^~~~~~~~
> arch/x86//mm/init_64.c:1332:46: note: previous definition of 'nr_pages' was here
> struct page *start_page, unsigned long nr_pages)
Thanks for telling, this patch is incomplete. I have posted v2 and will
post v3 per Ingo's comments. So NACK this v1 post.
> ^~~~~~~~
>
> vim +/nr_pages +1341 arch/x86//mm/init_64.c
>
> c2b91e2ee Yinghai Lu 2008-04-12 1329
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1330 #if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) && defined(CONFIG_HAVE_BOOTMEM_INFO_NODE)
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1331 void register_page_bootmem_memmap(unsigned long section_nr,
> b5f7b7e8b Baoquan He 2017-10-24 1332 struct page *start_page, unsigned long nr_pages)
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1333 {
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1334 unsigned long addr = (unsigned long)start_page;
> b5f7b7e8b Baoquan He 2017-10-24 1335 unsigned long end = (unsigned long)(start_page + nr_pages);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1336 unsigned long next;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1337 pgd_t *pgd;
> f2a6a7050 Kirill A. Shutemov 2017-03-17 1338 p4d_t *p4d;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1339 pud_t *pud;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1340 pmd_t *pmd;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 @1341 unsigned int nr_pages;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1342 struct page *page;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1343
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1344 for (; addr < end; addr = next) {
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1345 pte_t *pte = NULL;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1346
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1347 pgd = pgd_offset_k(addr);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1348 if (pgd_none(*pgd)) {
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1349 next = (addr + PAGE_SIZE) & PAGE_MASK;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1350 continue;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1351 }
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1352 get_page_bootmem(section_nr, pgd_page(*pgd), MIX_SECTION_INFO);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1353
> f2a6a7050 Kirill A. Shutemov 2017-03-17 1354 p4d = p4d_offset(pgd, addr);
> f2a6a7050 Kirill A. Shutemov 2017-03-17 1355 if (p4d_none(*p4d)) {
> f2a6a7050 Kirill A. Shutemov 2017-03-17 1356 next = (addr + PAGE_SIZE) & PAGE_MASK;
> f2a6a7050 Kirill A. Shutemov 2017-03-17 1357 continue;
> f2a6a7050 Kirill A. Shutemov 2017-03-17 1358 }
> f2a6a7050 Kirill A. Shutemov 2017-03-17 1359 get_page_bootmem(section_nr, p4d_page(*p4d), MIX_SECTION_INFO);
> f2a6a7050 Kirill A. Shutemov 2017-03-17 1360
> f2a6a7050 Kirill A. Shutemov 2017-03-17 1361 pud = pud_offset(p4d, addr);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1362 if (pud_none(*pud)) {
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1363 next = (addr + PAGE_SIZE) & PAGE_MASK;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1364 continue;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1365 }
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1366 get_page_bootmem(section_nr, pud_page(*pud), MIX_SECTION_INFO);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1367
> 16bf92261 Borislav Petkov 2016-03-29 1368 if (!boot_cpu_has(X86_FEATURE_PSE)) {
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1369 next = (addr + PAGE_SIZE) & PAGE_MASK;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1370 pmd = pmd_offset(pud, addr);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1371 if (pmd_none(*pmd))
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1372 continue;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1373 get_page_bootmem(section_nr, pmd_page(*pmd),
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1374 MIX_SECTION_INFO);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1375
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1376 pte = pte_offset_kernel(pmd, addr);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1377 if (pte_none(*pte))
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1378 continue;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1379 get_page_bootmem(section_nr, pte_page(*pte),
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1380 SECTION_INFO);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1381 } else {
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1382 next = pmd_addr_end(addr, end);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1383
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1384 pmd = pmd_offset(pud, addr);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1385 if (pmd_none(*pmd))
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1386 continue;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1387
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1388 nr_pages = 1 << (get_order(PMD_SIZE));
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1389 page = pmd_page(*pmd);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1390 while (nr_pages--)
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1391 get_page_bootmem(section_nr, page++,
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1392 SECTION_INFO);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1393 }
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1394 }
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1395 }
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1396 #endif
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1397
>
> :::::: The code at line 1341 was first introduced by commit
> :::::: 46723bfa540f0a1e494476a1734d03626a0bd1e0 memory-hotplug: implement register_page_bootmem_info_section of sparse-vmemmap
>
> :::::: TO: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
> :::::: CC: Linus Torvalds <torvalds@linux-foundation.org>
>
> ---
> 0-DAY kernel test infrastructure Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all Intel Corporation
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH] x86/mm/64: Rename the register_page_bootmem_memmap() 'size' parameter to 'nr_pages'
2017-10-24 13:29 ` Ingo Molnar
2017-10-24 13:34 ` Baoquan He
@ 2017-10-27 15:51 ` kbuild test robot
2017-10-27 23:45 ` Baoquan He
1 sibling, 1 reply; 7+ messages in thread
From: kbuild test robot @ 2017-10-27 15:51 UTC (permalink / raw)
To: Ingo Molnar; +Cc: kbuild-all, Baoquan He, linux-kernel, akpm, x86
[-- Attachment #1: Type: text/plain, Size: 6488 bytes --]
Hi Ingo,
Thank you for the patch! Yet we hit a small issue.
[auto build test ERROR on tip/x86/core]
[also build test ERROR on v4.14-rc6 next-20171018]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Ingo-Molnar/x86-mm-64-Rename-the-register_page_bootmem_memmap-size-parameter-to-nr_pages/20171027-181456
config: x86_64-kexec (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64
All errors (new ones prefixed by >>):
arch/x86/mm/init_64.c: In function 'register_page_bootmem_memmap':
>> arch/x86/mm/init_64.c:1341:15: error: 'nr_pages' redeclared as different kind of symbol
unsigned int nr_pages;
^~~~~~~~
arch/x86/mm/init_64.c:1332:46: note: previous definition of 'nr_pages' was here
struct page *start_page, unsigned long nr_pages)
^~~~~~~~
vim +/nr_pages +1341 arch/x86/mm/init_64.c
c2b91e2ee Yinghai Lu 2008-04-12 1329
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1330 #if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) && defined(CONFIG_HAVE_BOOTMEM_INFO_NODE)
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1331 void register_page_bootmem_memmap(unsigned long section_nr,
56f1692b6 Ingo Molnar 2017-10-24 1332 struct page *start_page, unsigned long nr_pages)
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1333 {
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1334 unsigned long addr = (unsigned long)start_page;
56f1692b6 Ingo Molnar 2017-10-24 1335 unsigned long end = (unsigned long)(start_page + nr_pages);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1336 unsigned long next;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1337 pgd_t *pgd;
f2a6a7050 Kirill A. Shutemov 2017-03-17 1338 p4d_t *p4d;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1339 pud_t *pud;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1340 pmd_t *pmd;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 @1341 unsigned int nr_pages;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1342 struct page *page;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1343
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1344 for (; addr < end; addr = next) {
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1345 pte_t *pte = NULL;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1346
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1347 pgd = pgd_offset_k(addr);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1348 if (pgd_none(*pgd)) {
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1349 next = (addr + PAGE_SIZE) & PAGE_MASK;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1350 continue;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1351 }
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1352 get_page_bootmem(section_nr, pgd_page(*pgd), MIX_SECTION_INFO);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1353
f2a6a7050 Kirill A. Shutemov 2017-03-17 1354 p4d = p4d_offset(pgd, addr);
f2a6a7050 Kirill A. Shutemov 2017-03-17 1355 if (p4d_none(*p4d)) {
f2a6a7050 Kirill A. Shutemov 2017-03-17 1356 next = (addr + PAGE_SIZE) & PAGE_MASK;
f2a6a7050 Kirill A. Shutemov 2017-03-17 1357 continue;
f2a6a7050 Kirill A. Shutemov 2017-03-17 1358 }
f2a6a7050 Kirill A. Shutemov 2017-03-17 1359 get_page_bootmem(section_nr, p4d_page(*p4d), MIX_SECTION_INFO);
f2a6a7050 Kirill A. Shutemov 2017-03-17 1360
f2a6a7050 Kirill A. Shutemov 2017-03-17 1361 pud = pud_offset(p4d, addr);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1362 if (pud_none(*pud)) {
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1363 next = (addr + PAGE_SIZE) & PAGE_MASK;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1364 continue;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1365 }
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1366 get_page_bootmem(section_nr, pud_page(*pud), MIX_SECTION_INFO);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1367
16bf92261 Borislav Petkov 2016-03-29 1368 if (!boot_cpu_has(X86_FEATURE_PSE)) {
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1369 next = (addr + PAGE_SIZE) & PAGE_MASK;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1370 pmd = pmd_offset(pud, addr);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1371 if (pmd_none(*pmd))
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1372 continue;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1373 get_page_bootmem(section_nr, pmd_page(*pmd),
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1374 MIX_SECTION_INFO);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1375
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1376 pte = pte_offset_kernel(pmd, addr);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1377 if (pte_none(*pte))
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1378 continue;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1379 get_page_bootmem(section_nr, pte_page(*pte),
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1380 SECTION_INFO);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1381 } else {
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1382 next = pmd_addr_end(addr, end);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1383
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1384 pmd = pmd_offset(pud, addr);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1385 if (pmd_none(*pmd))
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1386 continue;
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1387
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1388 nr_pages = 1 << (get_order(PMD_SIZE));
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1389 page = pmd_page(*pmd);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1390 while (nr_pages--)
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1391 get_page_bootmem(section_nr, page++,
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1392 SECTION_INFO);
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1393 }
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1394 }
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1395 }
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1396 #endif
46723bfa5 Yasuaki Ishimatsu 2013-02-22 1397
:::::: The code at line 1341 was first introduced by commit
:::::: 46723bfa540f0a1e494476a1734d03626a0bd1e0 memory-hotplug: implement register_page_bootmem_info_section of sparse-vmemmap
:::::: TO: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 25601 bytes --]
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH] x86/mm/64: Rename the register_page_bootmem_memmap() 'size' parameter to 'nr_pages'
2017-10-27 15:51 ` [PATCH] x86/mm/64: Rename the register_page_bootmem_memmap() 'size' parameter to 'nr_pages' kbuild test robot
@ 2017-10-27 23:45 ` Baoquan He
0 siblings, 0 replies; 7+ messages in thread
From: Baoquan He @ 2017-10-27 23:45 UTC (permalink / raw)
To: kbuild test robot; +Cc: Ingo Molnar, kbuild-all, linux-kernel, akpm, x86
Hi,
On 10/27/17 at 11:51pm, kbuild test robot wrote:
> Hi Ingo,
>
> Thank you for the patch! Yet we hit a small issue.
> [auto build test ERROR on tip/x86/core]
> [also build test ERROR on v4.14-rc6 next-20171018]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
>
> url: https://github.com/0day-ci/linux/commits/Ingo-Molnar/x86-mm-64-Rename-the-register_page_bootmem_memmap-size-parameter-to-nr_pages/20171027-181456
> config: x86_64-kexec (attached as .config)
> compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
> reproduce:
> # save the attached .config to linux build tree
> make ARCH=x86_64
>
> All errors (new ones prefixed by >>):
>
> arch/x86/mm/init_64.c: In function 'register_page_bootmem_memmap':
> >> arch/x86/mm/init_64.c:1341:15: error: 'nr_pages' redeclared as different kind of symbol
> unsigned int nr_pages;
> ^~~~~~~~
> arch/x86/mm/init_64.c:1332:46: note: previous definition of 'nr_pages' was here
> struct page *start_page, unsigned long nr_pages)
> ^~~~~~~~
The code change is incomplete in this thread, Ingo helped rewrite the
patch log in the suggested patch. I catched this error too when rebuilt,
will post v3. Please drop this one.
Thanks
Baoquan
>
> vim +/nr_pages +1341 arch/x86/mm/init_64.c
>
> c2b91e2ee Yinghai Lu 2008-04-12 1329
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1330 #if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) && defined(CONFIG_HAVE_BOOTMEM_INFO_NODE)
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1331 void register_page_bootmem_memmap(unsigned long section_nr,
> 56f1692b6 Ingo Molnar 2017-10-24 1332 struct page *start_page, unsigned long nr_pages)
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1333 {
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1334 unsigned long addr = (unsigned long)start_page;
> 56f1692b6 Ingo Molnar 2017-10-24 1335 unsigned long end = (unsigned long)(start_page + nr_pages);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1336 unsigned long next;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1337 pgd_t *pgd;
> f2a6a7050 Kirill A. Shutemov 2017-03-17 1338 p4d_t *p4d;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1339 pud_t *pud;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1340 pmd_t *pmd;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 @1341 unsigned int nr_pages;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1342 struct page *page;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1343
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1344 for (; addr < end; addr = next) {
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1345 pte_t *pte = NULL;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1346
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1347 pgd = pgd_offset_k(addr);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1348 if (pgd_none(*pgd)) {
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1349 next = (addr + PAGE_SIZE) & PAGE_MASK;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1350 continue;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1351 }
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1352 get_page_bootmem(section_nr, pgd_page(*pgd), MIX_SECTION_INFO);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1353
> f2a6a7050 Kirill A. Shutemov 2017-03-17 1354 p4d = p4d_offset(pgd, addr);
> f2a6a7050 Kirill A. Shutemov 2017-03-17 1355 if (p4d_none(*p4d)) {
> f2a6a7050 Kirill A. Shutemov 2017-03-17 1356 next = (addr + PAGE_SIZE) & PAGE_MASK;
> f2a6a7050 Kirill A. Shutemov 2017-03-17 1357 continue;
> f2a6a7050 Kirill A. Shutemov 2017-03-17 1358 }
> f2a6a7050 Kirill A. Shutemov 2017-03-17 1359 get_page_bootmem(section_nr, p4d_page(*p4d), MIX_SECTION_INFO);
> f2a6a7050 Kirill A. Shutemov 2017-03-17 1360
> f2a6a7050 Kirill A. Shutemov 2017-03-17 1361 pud = pud_offset(p4d, addr);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1362 if (pud_none(*pud)) {
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1363 next = (addr + PAGE_SIZE) & PAGE_MASK;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1364 continue;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1365 }
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1366 get_page_bootmem(section_nr, pud_page(*pud), MIX_SECTION_INFO);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1367
> 16bf92261 Borislav Petkov 2016-03-29 1368 if (!boot_cpu_has(X86_FEATURE_PSE)) {
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1369 next = (addr + PAGE_SIZE) & PAGE_MASK;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1370 pmd = pmd_offset(pud, addr);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1371 if (pmd_none(*pmd))
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1372 continue;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1373 get_page_bootmem(section_nr, pmd_page(*pmd),
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1374 MIX_SECTION_INFO);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1375
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1376 pte = pte_offset_kernel(pmd, addr);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1377 if (pte_none(*pte))
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1378 continue;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1379 get_page_bootmem(section_nr, pte_page(*pte),
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1380 SECTION_INFO);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1381 } else {
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1382 next = pmd_addr_end(addr, end);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1383
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1384 pmd = pmd_offset(pud, addr);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1385 if (pmd_none(*pmd))
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1386 continue;
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1387
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1388 nr_pages = 1 << (get_order(PMD_SIZE));
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1389 page = pmd_page(*pmd);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1390 while (nr_pages--)
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1391 get_page_bootmem(section_nr, page++,
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1392 SECTION_INFO);
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1393 }
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1394 }
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1395 }
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1396 #endif
> 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1397
>
> :::::: The code at line 1341 was first introduced by commit
> :::::: 46723bfa540f0a1e494476a1734d03626a0bd1e0 memory-hotplug: implement register_page_bootmem_info_section of sparse-vmemmap
>
> :::::: TO: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
> :::::: CC: Linus Torvalds <torvalds@linux-foundation.org>
>
> ---
> 0-DAY kernel test infrastructure Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all Intel Corporation
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2017-10-27 23:45 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-10-24 12:47 [PATCH] x86/mm/64: Rename the argument 'size' as 'nr_pages' in register_page_bootmem_memmap Baoquan He
2017-10-24 13:29 ` Ingo Molnar
2017-10-24 13:34 ` Baoquan He
2017-10-27 15:51 ` [PATCH] x86/mm/64: Rename the register_page_bootmem_memmap() 'size' parameter to 'nr_pages' kbuild test robot
2017-10-27 23:45 ` Baoquan He
2017-10-26 6:33 ` [PATCH] x86/mm/64: Rename the argument 'size' as 'nr_pages' in register_page_bootmem_memmap kbuild test robot
2017-10-26 6:58 ` Baoquan He
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