linux-kernel - [PATCH 3/7] zram: drop zcomp param from compress/decompress

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Date:	Wed, 25 May 2016 23:30:02 +0900
From:	Sergey Senozhatsky <sergey.senozhatsky@...il.com>
To:	Minchan Kim <minchan@...nel.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Joonsoo Kim <iamjoonsoo.kim@....com>,
	linux-kernel@...r.kernel.org,
	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
	Sergey Senozhatsky <sergey.senozhatsky@...il.com>
Subject: [PATCH 3/7] zram: drop zcomp param from compress/decompress

We don't need to supply a zcomp pointer to compress/decompress
functions, drop it.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@...il.com>
Cc: Minchan Kim <minchan@...nel.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@....com>
---
 drivers/block/zram/zcomp.c    | 5 ++---
 drivers/block/zram/zcomp.h    | 4 ++--
 drivers/block/zram/zram_drv.c | 4 ++--
 3 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/block/zram/zcomp.c b/drivers/block/zram/zcomp.c
index 82b568e..6e16fa2 100644
--- a/drivers/block/zram/zcomp.c
+++ b/drivers/block/zram/zcomp.c
@@ -102,7 +102,7 @@ void zcomp_stream_put(struct zcomp *comp)
 	put_cpu_ptr(comp->stream);
 }
 
-int zcomp_compress(struct zcomp *comp, struct zcomp_strm *zstrm,
+int zcomp_compress(struct zcomp_strm *zstrm,
 		const unsigned char *src, unsigned int *dst_len)
 {
 	/*
@@ -126,8 +126,7 @@ int zcomp_compress(struct zcomp *comp, struct zcomp_strm *zstrm,
 			zstrm->buffer, dst_len);
 }
 
-int zcomp_decompress(struct zcomp *comp,
-		struct zcomp_strm *zstrm,
+int zcomp_decompress(struct zcomp_strm *zstrm,
 		const unsigned char *src,
 		size_t src_len, unsigned char *dst)
 {
diff --git a/drivers/block/zram/zcomp.h b/drivers/block/zram/zcomp.h
index ba36bde..3fb9dc4 100644
--- a/drivers/block/zram/zcomp.h
+++ b/drivers/block/zram/zcomp.h
@@ -53,10 +53,10 @@ 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,
+int zcomp_compress(struct zcomp_strm *zstrm,
 		const unsigned char *src, unsigned int *dst_len);
 
-int zcomp_decompress(struct zcomp *comp, struct zcomp_strm *zstrm,
+int zcomp_decompress(struct zcomp_strm *zstrm,
 		const unsigned char *src,
 		size_t src_len, unsigned char *dst);
 
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index fa22a32..99c8be7 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -581,7 +581,7 @@ static int zram_decompress_page(struct zram *zram, char *mem, u32 index)
 	} else {
 		struct zcomp_strm *zstrm = zcomp_stream_get(zram->comp);
 
-		ret = zcomp_decompress(zram->comp, zstrm, cmem, size, mem);
+		ret = zcomp_decompress(zstrm, cmem, size, mem);
 		zcomp_stream_put(zram->comp);
 	}
 	zs_unmap_object(meta->mem_pool, handle);
@@ -700,7 +700,7 @@ compress_again:
 	}
 
 	zstrm = zcomp_stream_get(zram->comp);
-	ret = zcomp_compress(zram->comp, zstrm, uncmem, &clen);
+	ret = zcomp_compress(zstrm, uncmem, &clen);
 	if (!is_partial_io(bvec)) {
 		kunmap_atomic(user_mem);
 		user_mem = NULL;
-- 
2.8.3.394.g3916adf