From: Dave Hansen <dave@linux.vnet.ibm.com>
To: Cody P Schafer <cody@linux.vnet.ibm.com>
Cc: Linux MM <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Catalin Marinas <catalin.marinas@arm.com>
Subject: Re: [PATCH 01/17] mm/compaction: rename var zone_end_pfn to avoid conflicts with new function
Date: Tue, 15 Jan 2013 17:08:14 -0800 [thread overview]
Message-ID: <50F5FD7E.4080901@linux.vnet.ibm.com> (raw)
In-Reply-To: <1358295894-24167-2-git-send-email-cody@linux.vnet.ibm.com>
On 01/15/2013 04:24 PM, Cody P Schafer wrote:
> Patches that follow add a inline function zone_end_pfn(), which
> conflicts with the naming of a local variable in isolate_freepages().
>
> Rename the variable so it does not conflict.
It's probably worth a note here that you _will_ be migrating this use
over to the new function anyway.
> @@ -706,7 +706,7 @@ static void isolate_freepages(struct zone *zone,
> * only scans within a pageblock
> */
> end_pfn = ALIGN(pfn + 1, pageblock_nr_pages);
> - end_pfn = min(end_pfn, zone_end_pfn);
> + end_pfn = min(end_pfn, z_end_pfn);
Is there any reason not to just completely get rid of z_end_pfn (in the
later patches after you introduce zone_end_pfn() of course):
> + end_pfn = min(end_pfn, zone_end_pfn(zone));
I wouldn't be completely opposed to you just introducing zone_end_pfn()
and doing all the replacements in a single patch. It would make it
somewhat easier to review, and it would also save the juggling you have
to do with this one.
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WARNING: multiple messages have this Message-ID (diff)
From: Dave Hansen <dave@linux.vnet.ibm.com>
To: Cody P Schafer <cody@linux.vnet.ibm.com>
Cc: Linux MM <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Catalin Marinas <catalin.marinas@arm.com>
Subject: Re: [PATCH 01/17] mm/compaction: rename var zone_end_pfn to avoid conflicts with new function
Date: Tue, 15 Jan 2013 17:08:14 -0800 [thread overview]
Message-ID: <50F5FD7E.4080901@linux.vnet.ibm.com> (raw)
In-Reply-To: <1358295894-24167-2-git-send-email-cody@linux.vnet.ibm.com>
On 01/15/2013 04:24 PM, Cody P Schafer wrote:
> Patches that follow add a inline function zone_end_pfn(), which
> conflicts with the naming of a local variable in isolate_freepages().
>
> Rename the variable so it does not conflict.
It's probably worth a note here that you _will_ be migrating this use
over to the new function anyway.
> @@ -706,7 +706,7 @@ static void isolate_freepages(struct zone *zone,
> * only scans within a pageblock
> */
> end_pfn = ALIGN(pfn + 1, pageblock_nr_pages);
> - end_pfn = min(end_pfn, zone_end_pfn);
> + end_pfn = min(end_pfn, z_end_pfn);
Is there any reason not to just completely get rid of z_end_pfn (in the
later patches after you introduce zone_end_pfn() of course):
> + end_pfn = min(end_pfn, zone_end_pfn(zone));
I wouldn't be completely opposed to you just introducing zone_end_pfn()
and doing all the replacements in a single patch. It would make it
somewhat easier to review, and it would also save the juggling you have
to do with this one.
next prev parent reply other threads:[~2013-01-16 1:08 UTC|newest]
Thread overview: 48+ 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 ` 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 0:24 ` Cody P Schafer
2013-01-16 1:08 ` Dave Hansen [this message]
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 0:24 ` Cody P Schafer
2013-01-16 1:19 ` Dave Hansen
2013-01-16 1:19 ` Dave Hansen
2013-01-16 1:20 ` 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 ` 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 ` 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 ` 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 ` 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 ` 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 ` 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 ` 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 ` 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 ` 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 ` 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
2013-01-16 0:24 ` [PATCH 14/17] mm/memory_hotplug: factor out zone+pgdat growth Cody P Schafer
2013-01-16 0:24 ` Cody P Schafer
2013-01-16 1:27 ` Dave Hansen
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 0:24 ` Cody P Schafer
2013-01-16 1:34 ` Dave Hansen
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 ` Cody P Schafer
2013-01-16 0:24 ` [PATCH 17/17] mm/compaction: use zone_end_pfn() Cody P Schafer
2013-01-16 0:24 ` Cody P Schafer
2013-01-16 1:39 ` Dave Hansen
2013-01-16 1:39 ` Dave Hansen
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