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>
Subject: [PATCH 00/17] mm: zone & pgdat accessors plus some cleanup
Date: Tue, 15 Jan 2013 16:24:37 -0800 [thread overview]
Message-ID: <1358295894-24167-1-git-send-email-cody@linux.vnet.ibm.com> (raw)
Summaries:
01 - removes the use of zone_end_pfn as a local var name.
02 - adds zone_end_pfn(), zone_is_initialized(), zone_is_empty() and zone_spans_pfn()
03 - adds a VM_BUG using zone_is_initialized() in __free_one_page()
04 - add ensure_zone_is_initialized() (for memory_hotplug)
05 - use the above addition.
06 - add pgdat_end_pfn() and pgdat_is_empty()
07,08,09,10,11,12,16,17 - use the new helpers
13 - avoid repeating checks for section in page flags by adding a define.
14 - memory hotplug: factor out zone+pgdat growth.
15 - add debugging message to VM_BUG check.
As a general concern: spanned_pages & start_pfn (in pgdat & zone) are supposed
to be locked (via a seqlock) when read (due to changes to them via
memory_hotplug), but very few (only 1?) of their users appear to actually lock
them.
--
include/linux/mm.h | 8 ++++--
include/linux/mmzone.h | 34 ++++++++++++++++++++++---
mm/compaction.c | 10 ++++----
mm/kmemleak.c | 5 ++--
mm/memory_hotplug.c | 68 ++++++++++++++++++++++++++++----------------------
mm/page_alloc.c | 31 +++++++++++++----------
mm/vmstat.c | 2 +-
7 files changed, 100 insertions(+), 58 deletions(-)
--
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next 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 Cody P Schafer [this message]
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 ` [PATCH 14/17] mm/memory_hotplug: factor out zone+pgdat growth Cody P Schafer
2013-01-16 1:27 ` 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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