44 static void reset_cc(struct compress_ctx *cc)  in reset_cc()  argument
46 	memset(cc->rbuf, 0, cc->cluster_size * F2FS_BLKSIZE);  in reset_cc()
47 	memset(cc->cbuf->cdata, 0, cc->cluster_size * F2FS_BLKSIZE  in reset_cc()
53 static void lzo_compress_init(struct compress_ctx *cc)  in lzo_compress_init()  argument
55 	size_t size = cc->cluster_size * F2FS_BLKSIZE;  in lzo_compress_init()
58 	cc->private = malloc(alloc);  in lzo_compress_init()
59 	ASSERT(cc->private);  in lzo_compress_init()
60 	cc->rbuf = (char *) cc->private + LZO_WORK_SIZE;  in lzo_compress_init()
61 	cc->cbuf = (struct compress_data *)((char *) cc->rbuf + size);  in lzo_compress_init()
64 static int lzo_compress(struct compress_ctx *cc)  in lzo_compress()  argument
66 	int ret = lzo1x_1_15_compress(cc->rbuf, cc->rlen, cc->cbuf->cdata,  in lzo_compress()
67 			(lzo_uintp)(&cc->clen), cc->private);  in lzo_compress()
68 	cc->cbuf->clen = cpu_to_le32(cc->clen);  in lzo_compress()
74 static void lz4_compress_init(struct compress_ctx *cc)  in lz4_compress_init()  argument
76 	size_t size = cc->cluster_size * F2FS_BLKSIZE;  in lz4_compress_init()
79 	cc->private = malloc(alloc);  in lz4_compress_init()
80 	ASSERT(cc->private);  in lz4_compress_init()
81 	cc->rbuf = (char *) cc->private + LZ4_WORK_SIZE;  in lz4_compress_init()
82 	cc->cbuf = (struct compress_data *)((char *) cc->rbuf + size);  in lz4_compress_init()
85 static int lz4_compress(struct compress_ctx *cc)  in lz4_compress()  argument
87 	cc->clen = LZ4_compress_fast_extState(cc->private, cc->rbuf,  in lz4_compress()
88 			(char *)cc->cbuf->cdata, cc->rlen,  in lz4_compress()
89 			cc->rlen - F2FS_BLKSIZE * c.compress.min_blocks -  in lz4_compress()
93 	if (!cc->clen)  in lz4_compress()
96 	cc->cbuf->clen = cpu_to_le32(cc->clen);  in lz4_compress()