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authorMinchan Kim <minchan@kernel.org>2016-07-26 15:23:09 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-07-26 16:19:19 -0700
commitb1123ea6d3b3da25af5c8a9d843bd07ab63213f4 (patch)
treea46ec204cbeb92fc168b92b870a1489081726388 /mm/compaction.c
parentbda807d4445414e8e77da704f116bb0880fe0c76 (diff)
downloadlinux-b1123ea6d3b3da25af5c8a9d843bd07ab63213f4.tar.bz2
mm: balloon: use general non-lru movable page feature
Now, VM has a feature to migrate non-lru movable pages so balloon doesn't need custom migration hooks in migrate.c and compaction.c. Instead, this patch implements the page->mapping->a_ops-> {isolate|migrate|putback} functions. With that, we could remove hooks for ballooning in general migration functions and make balloon compaction simple. [akpm@linux-foundation.org: compaction.h requires that the includer first include node.h] Link: http://lkml.kernel.org/r/1464736881-24886-4-git-send-email-minchan@kernel.org Signed-off-by: Gioh Kim <gi-oh.kim@profitbricks.com> Signed-off-by: Minchan Kim <minchan@kernel.org> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Rafael Aquini <aquini@redhat.com> Cc: Konstantin Khlebnikov <koct9i@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/compaction.c')
-rw-r--r--mm/compaction.c7
1 files changed, 0 insertions, 7 deletions
diff --git a/mm/compaction.c b/mm/compaction.c
index fe95d8d021c3..d85520647d1d 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -791,13 +791,6 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn,
* Skip any other type of page
*/
if (!PageLRU(page)) {
- if (unlikely(balloon_page_movable(page))) {
- if (balloon_page_isolate(page)) {
- /* Successfully isolated */
- goto isolate_success;
- }
- }
-
/*
* __PageMovable can return false positive so we need
* to verify it under page_lock.