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Diffstat (limited to 'drivers/block/zram/zcomp.h')
-rw-r--r--drivers/block/zram/zcomp.h17
1 files changed, 7 insertions, 10 deletions
diff --git a/drivers/block/zram/zcomp.h b/drivers/block/zram/zcomp.h
index 944b8e60dd82..c914ab7972ef 100644
--- a/drivers/block/zram/zcomp.h
+++ b/drivers/block/zram/zcomp.h
@@ -13,12 +13,7 @@
struct zcomp_strm {
/* compression/decompression buffer */
void *buffer;
- /*
- * The private data of the compression stream, only compression
- * stream backend can touch this (e.g. compression algorithm
- * working memory)
- */
- void *private;
+ struct crypto_comp *tfm;
};
/* static compression backend */
@@ -40,6 +35,8 @@ struct zcomp {
struct zcomp_strm * __percpu *stream;
struct zcomp_backend *backend;
struct notifier_block notifier;
+
+ const char *name;
};
ssize_t zcomp_available_show(const char *comp, char *buf);
@@ -51,11 +48,11 @@ void zcomp_destroy(struct zcomp *comp);
struct zcomp_strm *zcomp_stream_get(struct zcomp *comp);
void zcomp_stream_put(struct zcomp *comp);
-int zcomp_compress(struct zcomp *comp, struct zcomp_strm *zstrm,
- const unsigned char *src, size_t *dst_len);
+int zcomp_compress(struct zcomp_strm *zstrm,
+ const void *src, unsigned int *dst_len);
-int zcomp_decompress(struct zcomp *comp, const unsigned char *src,
- size_t src_len, unsigned char *dst);
+int zcomp_decompress(struct zcomp_strm *zstrm,
+ const void *src, unsigned int src_len, void *dst);
bool zcomp_set_max_streams(struct zcomp *comp, int num_strm);
#endif /* _ZCOMP_H_ */