linux-kernel - [PATCHv2 2/3] zbud: add compaction callbacks

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Message-Id: <20150926100738.9dc61efc39d39533b02b8f5a@gmail.com>
Date:	Sat, 26 Sep 2015 10:07:38 +0200
From:	Vitaly Wool <vitalywool@...il.com>
To:	ddstreet@...e.org, akpm@...ux-foundation.org,
	Seth Jennings <sjennings@...iantweb.net>
Cc:	Minchan Kim <minchan@...nel.org>,
	Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Linux-MM <linux-mm@...ck.org>
Subject: [PATCHv2 2/3] zbud: add compaction callbacks

Add no-op compaction callbacks to zbud.

Signed-off-by: Vitaly Wool <vitalywool@...il.com>
---
 mm/zbud.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/mm/zbud.c b/mm/zbud.c
index fa48bcdf..d67c0aa 100644
--- a/mm/zbud.c
+++ b/mm/zbud.c
@@ -195,6 +195,16 @@ static void zbud_zpool_unmap(void *pool, unsigned long handle)
 	zbud_unmap(pool, handle);
 }
 
+static unsigned long zbud_zpool_compact(void *pool)
+{
+	return 0;
+}
+
+static unsigned long zbud_zpool_get_compacted(void *pool)
+{
+       return 0;
+}
+
 static u64 zbud_zpool_total_size(void *pool)
 {
 	return zbud_get_pool_size(pool) * PAGE_SIZE;
@@ -210,6 +220,8 @@ static struct zpool_driver zbud_zpool_driver = {
 	.shrink =	zbud_zpool_shrink,
 	.map =		zbud_zpool_map,
 	.unmap =	zbud_zpool_unmap,
+	.compact =	zbud_zpool_compact,
+	.get_num_compacted =	zbud_zpool_get_compacted,
 	.total_size =	zbud_zpool_total_size,
 };
 
-- 
1.9.1
--
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