mirror of
https://github.com/torvalds/linux.git
synced 2025-11-04 02:30:34 +02:00
20c8ccb197
Based on 1 normalized pattern(s): this work is licensed under the terms of the gnu gpl version 2 see the copying file in the top level directory extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 35 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.797835076@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
36 lines
887 B
C
36 lines
887 B
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Copyright (c) 2013
|
|
* Phillip Lougher <phillip@squashfs.org.uk>
|
|
*/
|
|
|
|
#include <linux/fs.h>
|
|
#include <linux/vfs.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/string.h>
|
|
#include <linux/pagemap.h>
|
|
#include <linux/mutex.h>
|
|
|
|
#include "squashfs_fs.h"
|
|
#include "squashfs_fs_sb.h"
|
|
#include "squashfs_fs_i.h"
|
|
#include "squashfs.h"
|
|
|
|
/* Read separately compressed datablock and memcopy into page cache */
|
|
int squashfs_readpage_block(struct page *page, u64 block, int bsize, int expected)
|
|
{
|
|
struct inode *i = page->mapping->host;
|
|
struct squashfs_cache_entry *buffer = squashfs_get_datablock(i->i_sb,
|
|
block, bsize);
|
|
int res = buffer->error;
|
|
|
|
if (res)
|
|
ERROR("Unable to read page, block %llx, size %x\n", block,
|
|
bsize);
|
|
else
|
|
squashfs_copy_cache(page, buffer, expected, 0);
|
|
|
|
squashfs_cache_put(buffer);
|
|
return res;
|
|
}
|