From: Joonsoo Kim <iamjoonsoo.kim@lge.com> To: Andrew Morton <akpm@linux-foundation.org> Cc: Mel Gorman <mgorman@suse.de>, Rik van Riel <riel@redhat.com>, Rafael Aquini <aquini@redhat.com>, Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>, Christoph Lameter <cl@linux.com>, Joonsoo Kim <js1304@gmail.com>, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Vlastimil Babka <vbabka@suse.cz>, Zhang Yanfei <zhangyanfei@cn.fujitsu.com>, Wanpeng Li <liwanp@linux.vnet.ibm.com>, Joonsoo Kim <iamjoonsoo.kim@lge.com> Subject: [PATCH v3 5/6] mm/compaction: respect ignore_skip_hint in update_pageblock_skip Date: Fri, 13 Dec 2013 15:53:30 +0900 [thread overview] Message-ID: <1386917611-11319-6-git-send-email-iamjoonsoo.kim@lge.com> (raw) In-Reply-To: <1386917611-11319-1-git-send-email-iamjoonsoo.kim@lge.com> update_pageblock_skip() only fits to compaction which tries to isolate by pageblock unit. If isolate_migratepages_range() is called by CMA, it try to isolate regardless of pageblock unit and it don't reference get_pageblock_skip() by ignore_skip_hint. We should also respect it on update_pageblock_skip() to prevent from setting the wrong information. Cc: <stable@vger.kernel.org> # 3.7+ Acked-by: Vlastimil Babka <vbabka@suse.cz> Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com> Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> diff --git a/mm/compaction.c b/mm/compaction.c index 805165b..f58bcd0 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -134,6 +134,10 @@ static void update_pageblock_skip(struct compact_control *cc, bool migrate_scanner) { struct zone *zone = cc->zone; + + if (cc->ignore_skip_hint) + return; + if (!page) return; -- 1.7.9.5
WARNING: multiple messages have this Message-ID (diff)
From: Joonsoo Kim <iamjoonsoo.kim@lge.com> To: Andrew Morton <akpm@linux-foundation.org> Cc: Mel Gorman <mgorman@suse.de>, Rik van Riel <riel@redhat.com>, Rafael Aquini <aquini@redhat.com>, Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>, Christoph Lameter <cl@linux.com>, Joonsoo Kim <js1304@gmail.com>, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Vlastimil Babka <vbabka@suse.cz>, Zhang Yanfei <zhangyanfei@cn.fujitsu.com>, Wanpeng Li <liwanp@linux.vnet.ibm.com>, Joonsoo Kim <iamjoonsoo.kim@lge.com> Subject: [PATCH v3 5/6] mm/compaction: respect ignore_skip_hint in update_pageblock_skip Date: Fri, 13 Dec 2013 15:53:30 +0900 [thread overview] Message-ID: <1386917611-11319-6-git-send-email-iamjoonsoo.kim@lge.com> (raw) In-Reply-To: <1386917611-11319-1-git-send-email-iamjoonsoo.kim@lge.com> update_pageblock_skip() only fits to compaction which tries to isolate by pageblock unit. If isolate_migratepages_range() is called by CMA, it try to isolate regardless of pageblock unit and it don't reference get_pageblock_skip() by ignore_skip_hint. We should also respect it on update_pageblock_skip() to prevent from setting the wrong information. Cc: <stable@vger.kernel.org> # 3.7+ Acked-by: Vlastimil Babka <vbabka@suse.cz> Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com> Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> diff --git a/mm/compaction.c b/mm/compaction.c index 805165b..f58bcd0 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -134,6 +134,10 @@ static void update_pageblock_skip(struct compact_control *cc, bool migrate_scanner) { struct zone *zone = cc->zone; + + if (cc->ignore_skip_hint) + return; + if (!page) return; -- 1.7.9.5 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2013-12-13 6:51 UTC|newest] Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top 2013-12-13 6:53 [PATCH v3 0/6] correct and clean-up migration related stuff Joonsoo Kim 2013-12-13 6:53 ` Joonsoo Kim 2013-12-13 6:53 ` [PATCH v3 1/6] mm/migrate: add comment about permanent failure path Joonsoo Kim 2013-12-13 6:53 ` Joonsoo Kim 2013-12-16 10:55 ` Rafael Aquini 2013-12-16 10:55 ` Rafael Aquini 2013-12-13 6:53 ` [PATCH v3 2/6] mm/migrate: correct failure handling if !hugepage_migration_support() Joonsoo Kim 2013-12-13 6:53 ` Joonsoo Kim 2013-12-13 22:05 ` Naoya Horiguchi 2013-12-13 22:05 ` Naoya Horiguchi 2013-12-13 6:53 ` [PATCH v3 3/6] mm/mempolicy: correct putback method for isolate pages if failed Joonsoo Kim 2013-12-13 6:53 ` Joonsoo Kim 2013-12-13 6:53 ` [PATCH v3 4/6] mm/migrate: remove putback_lru_pages, fix comment on putback_movable_pages Joonsoo Kim 2013-12-13 6:53 ` Joonsoo Kim 2013-12-13 6:53 ` Joonsoo Kim [this message] 2013-12-13 6:53 ` [PATCH v3 5/6] mm/compaction: respect ignore_skip_hint in update_pageblock_skip Joonsoo Kim 2013-12-13 6:53 ` [PATCH v3 6/6] mm/migrate: remove unused function, fail_migrate_page() Joonsoo Kim 2013-12-13 6:53 ` Joonsoo Kim
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