linux/drivers/block/zram/backend_deflate.c

// SPDX-License-Identifier: GPL-2.0-or-later

#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/zlib.h>

#include "backend_deflate.h"

/* Use the same value as crypto API */
#define DEFLATE_DEF_WINBITS …
#define DEFLATE_DEF_MEMLEVEL …

struct deflate_ctx { … };

static void deflate_release_params(struct zcomp_params *params)
{ … }

static int deflate_setup_params(struct zcomp_params *params)
{ … }

static void deflate_destroy(struct zcomp_ctx *ctx)
{ … }

static int deflate_create(struct zcomp_params *params, struct zcomp_ctx *ctx)
{ … }

static int deflate_compress(struct zcomp_params *params, struct zcomp_ctx *ctx,
			    struct zcomp_req *req)
{ … }

static int deflate_decompress(struct zcomp_params *params,
			      struct zcomp_ctx *ctx,
			      struct zcomp_req *req)
{ … }

const struct zcomp_ops backend_deflate = …;