All of lore.kernel.org
 help / color / mirror / Atom feed
From: David Hildenbrand <david@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org, David Hildenbrand <david@redhat.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Oscar Salvador <osalvador@suse.de>,
	Michal Hocko <mhocko@suse.com>,
	Pavel Tatashin <pasha.tatashin@soleen.com>,
	Dan Williams <dan.j.williams@intel.com>,
	Wei Yang <richardw.yang@linux.intel.com>
Subject: [PATCH v3 03/11] mm/memory_hotplug: We always have a zone in find_(smallest|biggest)_section_pfn
Date: Thu, 29 Aug 2019 09:00:11 +0200	[thread overview]
Message-ID: <20190829070019.12714-4-david@redhat.com> (raw)
In-Reply-To: <20190829070019.12714-1-david@redhat.com>

With shrink_pgdat_span() out of the way, we now always have a valid
zone.

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: David Hildenbrand <david@redhat.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Wei Yang <richardw.yang@linux.intel.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
 mm/memory_hotplug.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 70cd6c59c168..0a21f6f99753 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -337,7 +337,7 @@ static unsigned long find_smallest_section_pfn(int nid, struct zone *zone,
 		if (unlikely(pfn_to_nid(start_pfn) != nid))
 			continue;
 
-		if (zone && zone != page_zone(pfn_to_page(start_pfn)))
+		if (zone != page_zone(pfn_to_page(start_pfn)))
 			continue;
 
 		return start_pfn;
@@ -362,7 +362,7 @@ static unsigned long find_biggest_section_pfn(int nid, struct zone *zone,
 		if (unlikely(pfn_to_nid(pfn) != nid))
 			continue;
 
-		if (zone && zone != page_zone(pfn_to_page(pfn)))
+		if (zone != page_zone(pfn_to_page(pfn)))
 			continue;
 
 		return pfn;
-- 
2.21.0


  parent reply	other threads:[~2019-08-29  7:00 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-29  7:00 [PATCH v3 00/11] mm/memory_hotplug: Shrink zones before removing memory David Hildenbrand
2019-08-29  7:00 ` [PATCH v3 01/11] mm/memremap: Get rid of memmap_init_zone_device() David Hildenbrand
2019-08-29 16:39   ` Alexander Duyck
2019-08-29 16:39     ` Alexander Duyck
2019-08-29 16:55     ` David Hildenbrand
2019-08-29  7:00 ` [PATCH v3 02/11] mm/memory_hotplug: Simplify shrink_pgdat_span() David Hildenbrand
2019-08-29  7:00 ` David Hildenbrand [this message]
2019-08-29  7:00 ` [PATCH v3 04/11] mm/memory_hotplug: Drop local variables in shrink_zone_span() David Hildenbrand
2019-08-29  7:00 ` [PATCH v3 05/11] mm/memory_hotplug: Optimize zone shrinking code when checking for holes David Hildenbrand
2019-08-29  7:00 ` [PATCH v3 06/11] mm/memory_hotplug: Fix crashes in shrink_zone_span() David Hildenbrand
2019-08-29  7:00 ` [PATCH v3 07/11] mm/memory_hotplug: Exit early in __remove_pages() on BUGs David Hildenbrand
2019-08-29  7:00 ` [PATCH v3 08/11] mm: Exit early in set_zone_contiguous() if already contiguous David Hildenbrand
2019-08-29  7:00 ` [PATCH v3 09/11] mm/memory_hotplug: Remove pages from a zone before removing memory David Hildenbrand
2019-08-29  7:00 ` [PATCH v3 10/11] mm/memory_hotplug: Remove zone parameter from __remove_pages() David Hildenbrand
2019-08-29  7:00   ` David Hildenbrand
2019-08-29  7:00 ` [PATCH v3 11/11] mm/memory_hotplug: Cleanup __remove_pages() David Hildenbrand
2019-08-29  8:23 ` [PATCH v3 00/11] mm/memory_hotplug: Shrink zones before removing memory Michal Hocko
2019-08-29 11:33   ` David Hildenbrand
2019-08-29 11:43     ` David Hildenbrand
2019-08-29 12:08       ` David Hildenbrand
2019-08-29 12:15         ` Michal Hocko
2019-08-29 12:29           ` David Hildenbrand
2019-08-29 15:19             ` Michal Hocko
2019-08-29 15:28               ` David Hildenbrand

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=20190829070019.12714-4-david@redhat.com \
    --to=david@redhat.com \
    --cc=akpm@linux-foundation.org \
    --cc=dan.j.williams@intel.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=mhocko@suse.com \
    --cc=osalvador@suse.de \
    --cc=pasha.tatashin@soleen.com \
    --cc=richardw.yang@linux.intel.com \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.