mirror of
				git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
				synced 2025-09-04 20:19:47 +08:00 
			
		
		
		
	 20c8ccb197
			
		
	
	
		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>
		
			
				
	
	
		
			37 lines
		
	
	
		
			887 B
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			37 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;
 | |
| }
 |