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Subject[PATCH 4.14 21/57] mm/zsmalloc.c: fix build when CONFIG_COMPACTION=n
Date
From: Andrew Morton <akpm@linux-foundation.org>

commit 441e254cd40dc03beec3c650ce6ce6074bc6517f upstream.

Fixes: 701d678599d0c1 ("mm/zsmalloc.c: fix race condition in zs_destroy_pool")
Link: http://lkml.kernel.org/r/201908251039.5oSbEEUT%25lkp@intel.com
Reported-by: kbuild test robot <lkp@intel.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Henry Burns <henrywolfeburns@gmail.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Jonathan Adams <jwadams@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
mm/zsmalloc.c | 2 ++
1 file changed, 2 insertions(+)

--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -2431,7 +2431,9 @@ struct zs_pool *zs_create_pool(const cha
if (!pool->name)
goto err;

+#ifdef CONFIG_COMPACTION
init_waitqueue_head(&pool->migration_wait);
+#endif

if (create_cache(pool))
goto err;

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