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From: "Wang, Yalin" <Yalin.Wang@sonymobile.com>
To: "'mhocko@suse.cz'" <mhocko@suse.cz>,
	"'linux-mm@kvack.org'" <linux-mm@kvack.org>,
	"'akpm@linux-foundation.org'" <akpm@linux-foundation.org>,
	"mm-commits@vger.kernel.org" <mm-commits@vger.kernel.org>,
	"hughd@google.com" <hughd@google.com>,
	"b.zolnierkie@samsung.com" <b.zolnierkie@samsung.com>
Subject: [RFC] Free the reserved memblock when free cma pages
Date: Tue, 9 Sep 2014 14:13:58 +0800	[thread overview]
Message-ID: <35FD53F367049845BC99AC72306C23D103CDBFBFB016@CNBJMBX05.corpusers.net> (raw)

This patch add memblock_free to also free the reserved memblock,
so that the cma pages are not marked as reserved memory in
/sys/kernel/debug/memblock/reserved debug file

Signed-off-by: Yalin Wang <yalin.wang@sonymobile.com>
---
 mm/cma.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mm/cma.c b/mm/cma.c
index c17751c..f3ec756 100644
--- a/mm/cma.c
+++ b/mm/cma.c
@@ -114,6 +114,8 @@ static int __init cma_activate_area(struct cma *cma)
 				goto err;
 		}
 		init_cma_reserved_pageblock(pfn_to_page(base_pfn));
+		memblock_free(__pfn_to_phys(base_pfn),
+				pageblock_nr_pages * PAGE_SIZE);
 	} while (--i);
 
 	mutex_init(&cma->lock);
-- 
2.1.0

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             reply	other threads:[~2014-09-09  6:14 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-09-09  6:13 Wang, Yalin [this message]
2014-09-10  8:18 ` [RFC] Free the reserved memblock when free cma pages Michal Hocko
2014-09-10  9:02   ` Wang, Yalin
2014-09-12  9:35 ` Marek Szyprowski
2014-09-15  3:06   ` Joonsoo Kim
2014-09-15  5:21 ` Minchan Kim
2014-09-15  5:36   ` Wang, Yalin
2014-09-15  5:42     ` Minchan Kim
2014-09-15  5:46       ` Wang, Yalin
2014-09-15  6:10       ` [RFC V2] " Wang, Yalin
2014-09-15  6:57         ` Minchan Kim
2014-09-15  7:54         ` [PATCH Resend] " Wang, Yalin

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