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authorMinchan Kim <minchan@kernel.org>2016-07-26 15:26:50 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-07-26 16:19:19 -0700
commitdd4123f324bbaec7618b677b7bce2b11aee9594e (patch)
treeccc798b953a7c1eaff8b53d01bc26ceb8e5940da /mm/zsmalloc.c
parent0db501f7a34c11d3b964205e5b6d00692a648035 (diff)
downloadlinux-dd4123f324bbaec7618b677b7bce2b11aee9594e.tar.gz
mm: fix build warnings in <linux/compaction.h>
Randy reported below build error.

> In file included from ../include/linux/balloon_compaction.h:48:0,
>                  from ../mm/balloon_compaction.c:11:
> ../include/linux/compaction.h:237:51: warning: 'struct node' declared inside parameter list [enabled by default]
>  static inline int compaction_register_node(struct node *node)
> ../include/linux/compaction.h:237:51: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default]
> ../include/linux/compaction.h:242:54: warning: 'struct node' declared inside parameter list [enabled by default]
>  static inline void compaction_unregister_node(struct node *node)
>

It was caused by non-lru page migration which needs compaction.h but
compaction.h doesn't include any header to be standalone.

I think proper header for non-lru page migration is migrate.h rather
than compaction.h because migrate.h has already headers needed to work
non-lru page migration indirectly like isolate_mode_t, migrate_mode
MIGRATEPAGE_SUCCESS.

[akpm@linux-foundation.org: revert mm-balloon-use-general-non-lru-movable-page-feature-fix.patch temp fix]
Link: http://lkml.kernel.org/r/20160610003304.GE29779@bbox
Signed-off-by: Minchan Kim <minchan@kernel.org>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Gioh Kim <gi-oh.kim@profitbricks.com>
Cc: Rafael Aquini <aquini@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/zsmalloc.c')
-rw-r--r--mm/zsmalloc.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index e4e8081b160b..04176de6df70 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -50,7 +50,7 @@
 #include <linux/zsmalloc.h>
 #include <linux/zpool.h>
 #include <linux/mount.h>
-#include <linux/compaction.h>
+#include <linux/migrate.h>
 #include <linux/pagemap.h>
 
 #define ZSPAGE_MAGIC	0x58
@@ -2107,7 +2107,7 @@ int zs_page_migrate(struct address_space *mapping, struct page *newpage,
 	put_page(page);
 	page = newpage;
 
-	ret = 0;
+	ret = MIGRATEPAGE_SUCCESS;
 unpin_objects:
 	for (addr = s_addr + offset; addr < s_addr + pos;
 						addr += class->size) {