[PATCHv2 3/3] zsmalloc: add compaction callbacks
From: Vitaly Wool <hidden>
Date: 2015-09-26 08:09:57
Also in:
lkml
Subsystem:
memory management, the rest, zsmalloc compressed slab memory allocator · Maintainers:
Andrew Morton, Linus Torvalds, Minchan Kim, Sergey Senozhatsky
Add compaction callbacks for zpool compaction API extension. Signed-off-by: Vitaly Wool <redacted> --- mm/zsmalloc.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+)
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index f135b1b..8f2ddd1 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c@@ -365,6 +365,19 @@ static void zs_zpool_unmap(void *pool, unsigned long handle) zs_unmap_object(pool, handle); } +static unsigned long zs_zpool_compact(void *pool) +{ + return zs_compact(pool); +} + +static unsigned long zs_zpool_get_compacted(void *pool) +{ + struct zs_pool_stats stats; + + zs_pool_stats(pool, &stats); + return stats.pages_compacted; +} + static u64 zs_zpool_total_size(void *pool) { return zs_get_total_pages(pool) << PAGE_SHIFT;
@@ -380,6 +393,8 @@ static struct zpool_driver zs_zpool_driver = { .shrink = zs_zpool_shrink, .map = zs_zpool_map, .unmap = zs_zpool_unmap, + .compact = zs_zpool_compact, + .get_num_compacted = zs_zpool_get_compacted, .total_size = zs_zpool_total_size, };
--
1.9.1
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