From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
To: js1304@gmail.com, Andrew Morton <akpm@linux-foundation.org>
Cc: Rik van Riel <riel@redhat.com>,
Johannes Weiner <hannes@cmpxchg.org>,
mgorman@techsingularity.net, Laura Abbott <lauraa@codeaurora.org>,
Minchan Kim <minchan@kernel.org>,
Marek Szyprowski <m.szyprowski@samsung.com>,
Michal Nazarewicz <mina86@mina86.com>,
Vlastimil Babka <vbabka@suse.cz>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Joonsoo Kim <iamjoonsoo.kim@lge.com>
Subject: Re: [PATCH v5 2/6] mm/cma: introduce new zone, ZONE_CMA
Date: Tue, 30 Aug 2016 16:05:20 +0530 [thread overview]
Message-ID: <87vayisfx3.fsf@linux.vnet.ibm.com> (raw)
In-Reply-To: <1472447255-10584-3-git-send-email-iamjoonsoo.kim@lge.com>
....
> static inline void check_highest_zone(enum zone_type k)
> {
> - if (k > policy_zone && k != ZONE_MOVABLE)
> + if (k > policy_zone && k != ZONE_MOVABLE && !is_zone_cma_idx(k))
> policy_zone = k;
> }
>
Should we apply policy to allocation from ZONE CMA ?. CMA reserve
happens early and may mostly come from one node. Do we want the
CMA allocation to fail if we use mbind(MPOL_BIND) with a node mask not
including that node on which CMA is reserved, considering CMA memory is
going to be used for special purpose.
-aneesh
next prev parent reply other threads:[~2016-08-30 10:35 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-29 5:07 [PATCH v5 0/6] Introduce ZONE_CMA js1304
2016-08-29 5:07 ` [PATCH v5 1/6] mm/page_alloc: don't reserve ZONE_HIGHMEM for ZONE_MOVABLE request js1304
2016-09-16 3:14 ` Aneesh Kumar K.V
2016-09-22 5:30 ` Joonsoo Kim
2016-09-21 9:06 ` Vlastimil Babka
2016-08-29 5:07 ` [PATCH v5 2/6] mm/cma: introduce new zone, ZONE_CMA js1304
2016-08-30 10:35 ` Aneesh Kumar K.V [this message]
2016-08-30 12:40 ` Aneesh Kumar K.V
2016-08-31 7:58 ` Joonsoo Kim
2016-09-21 9:11 ` Vlastimil Babka
2016-08-29 5:07 ` [PATCH v5 3/6] mm/cma: populate ZONE_CMA js1304
2016-09-21 9:20 ` Vlastimil Babka
2016-09-22 5:45 ` Joonsoo Kim
2016-09-22 6:50 ` Joonsoo Kim
2016-09-22 15:59 ` Vlastimil Babka
2016-09-28 5:34 ` Joonsoo Kim
2016-08-29 5:07 ` [PATCH v5 4/6] mm/cma: remove ALLOC_CMA js1304
2016-08-29 5:07 ` [PATCH v5 5/6] mm/cma: remove MIGRATE_CMA js1304
2016-08-29 5:07 ` [PATCH v5 6/6] mm/cma: remove per zone CMA stat js1304
2016-08-29 9:27 ` [PATCH v5 0/6] Introduce ZONE_CMA Aneesh Kumar K.V
2016-08-30 8:21 ` Joonsoo Kim
2016-08-30 10:39 ` Aneesh Kumar K.V
2016-08-31 8:03 ` Joonsoo Kim
2016-09-01 5:47 ` Aneesh Kumar K.V
2016-09-01 6:01 ` Joonsoo Kim
2016-09-21 14:47 ` Aneesh Kumar K.V
2016-09-22 5:32 ` Joonsoo Kim
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