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Revision 2f19cad94cee3c9bd52d0c9ca584ef506302fb7c authored by Chris Mason on 30 November 2014, 13:56:33 UTC, committed by Linus Torvalds on 30 November 2014, 17:33:51 UTC 
btrfs: zero out left over bytes after processing compression streams
 
Don Bailey noticed that our page zeroing for compression at end-io time
isn't complete.  This reworks a patch from Linus to push the zeroing
into the zlib and lzo specific functions instead of trying to handle the
corners inside btrfs_decompress_buf2page

Signed-off-by: Chris Mason <clm@fb.com>
Reviewed-by: Josef Bacik <jbacik@fb.com>
Reported-by: Don A. Bailey <donb@securitymouse.com>
cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 7a5a4f9
Raw File
hash_info.c 
/*
 * Hash Info: Hash algorithms information
 *
 * Copyright (c) 2013 Dmitry Kasatkin <d.kasatkin@samsung.com>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option)
 * any later version.
 *
 */

#include <linux/export.h>
#include <crypto/hash_info.h>

const char *const hash_algo_name[HASH_ALGO__LAST] = {
	[HASH_ALGO_MD4]		= "md4",
	[HASH_ALGO_MD5]		= "md5",
	[HASH_ALGO_SHA1]	= "sha1",
	[HASH_ALGO_RIPE_MD_160]	= "rmd160",
	[HASH_ALGO_SHA256]	= "sha256",
	[HASH_ALGO_SHA384]	= "sha384",
	[HASH_ALGO_SHA512]	= "sha512",
	[HASH_ALGO_SHA224]	= "sha224",
	[HASH_ALGO_RIPE_MD_128]	= "rmd128",
	[HASH_ALGO_RIPE_MD_256]	= "rmd256",
	[HASH_ALGO_RIPE_MD_320]	= "rmd320",
	[HASH_ALGO_WP_256]	= "wp256",
	[HASH_ALGO_WP_384]	= "wp384",
	[HASH_ALGO_WP_512]	= "wp512",
	[HASH_ALGO_TGR_128]	= "tgr128",
	[HASH_ALGO_TGR_160]	= "tgr160",
	[HASH_ALGO_TGR_192]	= "tgr192",
};
EXPORT_SYMBOL_GPL(hash_algo_name);

const int hash_digest_size[HASH_ALGO__LAST] = {
	[HASH_ALGO_MD4]		= MD5_DIGEST_SIZE,
	[HASH_ALGO_MD5]		= MD5_DIGEST_SIZE,
	[HASH_ALGO_SHA1]	= SHA1_DIGEST_SIZE,
	[HASH_ALGO_RIPE_MD_160]	= RMD160_DIGEST_SIZE,
	[HASH_ALGO_SHA256]	= SHA256_DIGEST_SIZE,
	[HASH_ALGO_SHA384]	= SHA384_DIGEST_SIZE,
	[HASH_ALGO_SHA512]	= SHA512_DIGEST_SIZE,
	[HASH_ALGO_SHA224]	= SHA224_DIGEST_SIZE,
	[HASH_ALGO_RIPE_MD_128]	= RMD128_DIGEST_SIZE,
	[HASH_ALGO_RIPE_MD_256]	= RMD256_DIGEST_SIZE,
	[HASH_ALGO_RIPE_MD_320]	= RMD320_DIGEST_SIZE,
	[HASH_ALGO_WP_256]	= WP256_DIGEST_SIZE,
	[HASH_ALGO_WP_384]	= WP384_DIGEST_SIZE,
	[HASH_ALGO_WP_512]	= WP512_DIGEST_SIZE,
	[HASH_ALGO_TGR_128]	= TGR128_DIGEST_SIZE,
	[HASH_ALGO_TGR_160]	= TGR160_DIGEST_SIZE,
	[HASH_ALGO_TGR_192]	= TGR192_DIGEST_SIZE,
};
EXPORT_SYMBOL_GPL(hash_digest_size);
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