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Diffstat (limited to 'drivers/block/zram/zcomp.h')
-rw-r--r--drivers/block/zram/zcomp.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/block/zram/zcomp.h b/drivers/block/zram/zcomp.h
index 1806475b919d..40f6420f4b2e 100644
--- a/drivers/block/zram/zcomp.h
+++ b/drivers/block/zram/zcomp.h
@@ -5,8 +5,11 @@
#ifndef _ZCOMP_H_
#define _ZCOMP_H_
+#include <linux/local_lock.h>
struct zcomp_strm {
+ /* The members ->buffer and ->tfm are protected by ->lock. */
+ local_lock_t lock;
/* compression/decompression buffer */
void *buffer;
struct crypto_comp *tfm;
@@ -14,7 +17,7 @@ struct zcomp_strm {
/* dynamic per-device compression frontend */
struct zcomp {
- struct zcomp_strm * __percpu *stream;
+ struct zcomp_strm __percpu *stream;
const char *name;
struct hlist_node node;
};