From: Andrew Morton <akpm@linux-foundation.org>
To: Cody P Schafer <cody@linux.vnet.ibm.com>
Cc: Linux MM <linux-mm@kvack.org>,
David Hansen <dave@linux.vnet.ibm.com>,
LKML <linux-kernel@vger.kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>
Subject: Re: [PATCH 1/9] mm: add SECTION_IN_PAGE_FLAGS
Date: Fri, 1 Feb 2013 16:20:02 -0800 [thread overview]
Message-ID: <20130201162002.49eadeb7.akpm@linux-foundation.org> (raw)
In-Reply-To: <1358463181-17956-2-git-send-email-cody@linux.vnet.ibm.com>
On Thu, 17 Jan 2013 14:52:53 -0800
Cody P Schafer <cody@linux.vnet.ibm.com> wrote:
> Instead of directly utilizing a combination of config options to determine this,
> add a macro to specifically address it.
>
> ...
>
> --- a/include/linux/mm.h
> +++ b/include/linux/mm.h
> @@ -625,6 +625,10 @@ static inline pte_t maybe_mkwrite(pte_t pte, struct vm_area_struct *vma)
> #define NODE_NOT_IN_PAGE_FLAGS
> #endif
>
> +#if defined(CONFIG_SPARSEMEM) && !defined(CONFIG_SPARSEMEM_VMEMMAP)
> +#define SECTION_IN_PAGE_FLAGS
> +#endif
We could do this in Kconfig itself, in the definition of a new
CONFIG_SECTION_IN_PAGE_FLAGS.
I'm not sure that I like that sort of thing a lot though - it's rather a
pain to have to switch from .[ch] over to Kconfig to find the
definitions of things. I should get off my tail and teach my ctags
scripts to handle this.
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next prev parent reply other threads:[~2013-02-02 0:20 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-17 22:52 [PATCH v2 0/9] mm: zone & pgdat accessors plus some cleanup Cody P Schafer
2013-01-17 22:52 ` [PATCH 1/9] mm: add SECTION_IN_PAGE_FLAGS Cody P Schafer
2013-02-02 0:20 ` Andrew Morton [this message]
2013-02-05 22:23 ` Cody P Schafer
2013-01-17 22:52 ` [PATCH 2/9] mm: add & use zone_end_pfn() and zone_spans_pfn() Cody P Schafer
2013-01-17 22:52 ` [PATCH 3/9] mm: add zone_is_empty() and zone_is_initialized() Cody P Schafer
2013-01-17 22:52 ` [PATCH 4/9] mm/page_alloc: add a VM_BUG in __free_one_page() if the zone is uninitialized Cody P Schafer
2013-01-17 22:52 ` [PATCH 5/9] mmzone: add pgdat_{end_pfn,is_empty}() helpers & consolidate Cody P Schafer
2013-02-02 0:23 ` Andrew Morton
2013-01-17 22:52 ` [PATCH 6/9] mm/page_alloc: add informative debugging message in page_outside_zone_boundaries() Cody P Schafer
2013-02-02 0:28 ` Andrew Morton
2013-02-02 0:29 ` Andrew Morton
2013-02-05 22:20 ` Cody P Schafer
2013-01-17 22:52 ` [PATCH 7/9] mm: add helper ensure_zone_is_initialized() Cody P Schafer
2013-01-17 22:53 ` [PATCH 8/9] mm/memory_hotplug: use ensure_zone_is_initialized() Cody P Schafer
2013-01-17 22:53 ` [PATCH 9/9] mm/memory_hotplug: use pgdat_end_pfn() instead of open coding the same Cody P Schafer
2013-02-02 0:39 ` [PATCH v2 0/9] mm: zone & pgdat accessors plus some cleanup Andrew Morton
2013-02-05 22:59 ` Cody P Schafer
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