From: Oscar Salvador <osalvador@techadventures.net>
To: linux-mm@kvack.org
Cc: mhocko@suse.com, akpm@linux-foundation.org, vbabka@suse.cz
Subject: [PATCH] mm: memory_hotplug: Remove unnecesary check from register_page_bootmem_info_section()
Date: Tue, 5 Dec 2017 15:34:22 +0100 [thread overview]
Message-ID: <20171205143422.GA31458@techadventures.net> (raw)
When we call register_page_bootmem_info_section() having CONFIG_SPARSEMEM_VMEMMAP enabled,
we check if the pfn is valid.
This check is redundant as we already checked this in register_page_bootmem_info_node()
before calling register_page_bootmem_info_section(), so let's get rid of it.
Signed-off-by: Oscar Salvador <osalvador@techadventures.net>
---
mm/memory_hotplug.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index d0856ab2f28d..7452a53b027f 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -200,9 +200,6 @@ static void register_page_bootmem_info_section(unsigned long start_pfn)
struct mem_section *ms;
struct page *page, *memmap;
- if (!pfn_valid(start_pfn))
- return;
-
section_nr = pfn_to_section_nr(start_pfn);
ms = __nr_to_section(section_nr);
--
2.13.5
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next reply other threads:[~2017-12-05 14:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-05 14:34 Oscar Salvador [this message]
2017-12-05 14:44 ` Michal Hocko
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20171205143422.GA31458@techadventures.net \
--to=osalvador@techadventures.net \
--cc=akpm@linux-foundation.org \
--cc=linux-mm@kvack.org \
--cc=mhocko@suse.com \
--cc=vbabka@suse.cz \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox