From: Cody P Schafer <cody@linux.vnet.ibm.com>
To: Linux MM <linux-mm@kvack.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Cody P Schafer <cody@linux.vnet.ibm.com>
Subject: [PATCH 14/17] mm/memory_hotplug: factor out zone+pgdat growth.
Date: Tue, 15 Jan 2013 16:24:51 -0800 [thread overview]
Message-ID: <1358295894-24167-15-git-send-email-cody@linux.vnet.ibm.com> (raw)
In-Reply-To: <1358295894-24167-1-git-send-email-cody@linux.vnet.ibm.com>
Create a new function grow_pgdat_and_zone() which handles locking +
growth of a zone & the pgdat which it is associated with.
Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com>
---
mm/memory_hotplug.c | 16 +++++++++++-----
1 file changed, 11 insertions(+), 5 deletions(-)
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 0a74b86a..c6149a3 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -361,6 +361,16 @@ static void grow_pgdat_span(struct pglist_data *pgdat, unsigned long start_pfn,
pgdat->node_start_pfn;
}
+static void grow_pgdat_and_zone(struct zone *zone, unsigned long start_pfn,
+ unsigned long end_pfn)
+{
+ unsigned long flags;
+ pgdat_resize_lock(zone->zone_pgdat, &flags);
+ grow_zone_span(zone, start_pfn, end_pfn);
+ grow_pgdat_span(zone->zone_pgdat, start_pfn, end_pfn);
+ pgdat_resize_unlock(zone->zone_pgdat, &flags);
+}
+
static int __meminit __add_zone(struct zone *zone, unsigned long phys_start_pfn)
{
struct pglist_data *pgdat = zone->zone_pgdat;
@@ -375,11 +385,7 @@ static int __meminit __add_zone(struct zone *zone, unsigned long phys_start_pfn)
if (ret)
return ret;
- pgdat_resize_lock(zone->zone_pgdat, &flags);
- grow_zone_span(zone, phys_start_pfn, phys_start_pfn + nr_pages);
- grow_pgdat_span(zone->zone_pgdat, phys_start_pfn,
- phys_start_pfn + nr_pages);
- pgdat_resize_unlock(zone->zone_pgdat, &flags);
+ grow_pgdat_and_zone(zone, phys_start_pfn, phys_start_pfn + nr_pages);
memmap_init_zone(nr_pages, nid, zone_type,
phys_start_pfn, MEMMAP_HOTPLUG);
return 0;
--
1.8.0.3
--
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next prev parent reply other threads:[~2013-01-16 0:25 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-16 0:24 [PATCH 00/17] mm: zone & pgdat accessors plus some cleanup Cody P Schafer
2013-01-16 0:24 ` [PATCH 01/17] mm/compaction: rename var zone_end_pfn to avoid conflicts with new function Cody P Schafer
2013-01-16 1:08 ` Dave Hansen
2013-01-16 0:24 ` [PATCH 02/17] mmzone: add various zone_*() helper functions Cody P Schafer
2013-01-16 1:19 ` Dave Hansen
2013-01-16 1:20 ` Dave Hansen
2013-01-16 0:24 ` [PATCH 03/17] mm/page_alloc: add a VM_BUG in __free_one_page() if the zone is uninitialized Cody P Schafer
2013-01-16 0:24 ` [PATCH 04/17] mm: add helper ensure_zone_is_initialized() Cody P Schafer
2013-01-16 0:24 ` [PATCH 05/17] mm/memory_hotplug: use ensure_zone_is_initialized() Cody P Schafer
2013-01-16 0:24 ` [PATCH 06/17] mmzone: add pgdat_{end_pfn,is_empty}() helpers & consolidate Cody P Schafer
2013-01-16 0:24 ` [PATCH 07/17] mm/page_alloc: use zone_spans_pfn() instead of open coding Cody P Schafer
2013-01-16 0:24 ` [PATCH 08/17] mm/page_alloc: use zone_spans_pfn() instead of open coded checks Cody P Schafer
2013-01-16 0:24 ` [PATCH 09/17] mm/page_alloc: use zone_end_pfn() & zone_spans_pfn() Cody P Schafer
2013-01-16 0:24 ` [PATCH 10/17] mm/vmstat: use zone_end_pfn() instead of opencoding Cody P Schafer
2013-01-16 0:24 ` [PATCH 11/17] mm/kmemleak: use node_{start,end}_pfn() Cody P Schafer
2013-01-16 0:24 ` [PATCH 12/17] mm/memory_hotplug: use pgdat_end_pfn() instead of open coding the same Cody P Schafer
2013-01-16 0:24 ` [PATCH 13/17] mm: add SECTION_IN_PAGE_FLAGS Cody P Schafer
2013-01-16 0:24 ` Cody P Schafer [this message]
2013-01-16 1:27 ` [PATCH 14/17] mm/memory_hotplug: factor out zone+pgdat growth Dave Hansen
2013-01-16 0:24 ` [PATCH 15/17] mm/page_alloc: add informative debugging message in page_outside_zone_boundaries() Cody P Schafer
2013-01-16 1:34 ` Dave Hansen
2013-01-16 0:24 ` [PATCH 16/17] mm/memory_hotplug: use zone_end_pfn() instead of open coding Cody P Schafer
2013-01-16 0:24 ` [PATCH 17/17] mm/compaction: use zone_end_pfn() Cody P Schafer
2013-01-16 1:39 ` Dave Hansen
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