linux/fs/squashfs/decompressor_multi_percpu.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (c) 2013
 * Phillip Lougher <[email protected]>
 */

#include <linux/types.h>
#include <linux/slab.h>
#include <linux/percpu.h>
#include <linux/local_lock.h>

#include "squashfs_fs.h"
#include "squashfs_fs_sb.h"
#include "decompressor.h"
#include "squashfs.h"

/*
 * This file implements multi-threaded decompression using percpu
 * variables, one thread per cpu core.
 */

struct squashfs_stream { … };

static void *squashfs_decompressor_create(struct squashfs_sb_info *msblk,
						void *comp_opts)
{ … }

static void squashfs_decompressor_destroy(struct squashfs_sb_info *msblk)
{ … }

static int squashfs_decompress(struct squashfs_sb_info *msblk, struct bio *bio,
	int offset, int length, struct squashfs_page_actor *output)
{ … }

static int squashfs_max_decompressors(void)
{ … }

const struct squashfs_decompressor_thread_ops squashfs_decompressor_percpu = …;