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linux/3.3: merge recent ubifs patches from 3.2

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SVN-Revision: 30800
This commit is contained in:
Gabor Juhos 2012-03-03 14:10:27 +00:00
parent 419d9e2f54
commit da628121b0
5 changed files with 310 additions and 2 deletions
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1
target/linux/generic/config-3.3
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@ -491,6 +491,7 @@ CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
# CONFIG_CRYPTO_VMAC is not set
# CONFIG_CRYPTO_WP512 is not set
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_XZ is not set
# CONFIG_CRYPTO_XTS is not set
# CONFIG_CRYPTO_ZLIB is not set
# CONFIG_CRYSTALHD is not set

146
target/linux/generic/patches-3.3/540-crypto-xz-decompression-support.patch Normal file
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@ -0,0 +1,146 @@
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -924,6 +924,13 @@ config CRYPTO_LZO
help
This is the LZO algorithm.
+config CRYPTO_XZ
+ tristate "XZ compression algorithm"
+ select CRYPTO_ALGAPI
+ select XZ_DEC
+ help
+ This is the XZ algorithm. Only decompression is supported for now.
+
comment "Random Number Generation"
config CRYPTO_ANSI_CPRNG
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -82,6 +82,7 @@ obj-$(CONFIG_CRYPTO_MICHAEL_MIC) += mich
obj-$(CONFIG_CRYPTO_CRC32C) += crc32c.o
obj-$(CONFIG_CRYPTO_AUTHENC) += authenc.o authencesn.o
obj-$(CONFIG_CRYPTO_LZO) += lzo.o
+obj-$(CONFIG_CRYPTO_XZ) += xz.o
obj-$(CONFIG_CRYPTO_RNG2) += rng.o
obj-$(CONFIG_CRYPTO_RNG2) += krng.o
obj-$(CONFIG_CRYPTO_ANSI_CPRNG) += ansi_cprng.o
--- /dev/null
+++ b/crypto/xz.c
@@ -0,0 +1,117 @@
+/*
+ * Cryptographic API.
+ *
+ * XZ decompression support.
+ *
+ * Copyright (c) 2012 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ */
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/crypto.h>
+#include <linux/xz.h>
+#include <linux/interrupt.h>
+#include <linux/mm.h>
+#include <linux/net.h>
+
+struct xz_comp_ctx {
+ struct xz_dec *decomp_state;
+ struct xz_buf decomp_buf;
+};
+
+static int crypto_xz_decomp_init(struct xz_comp_ctx *ctx)
+{
+ ctx->decomp_state = xz_dec_init(XZ_SINGLE, 0);
+ if (!ctx->decomp_state)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static void crypto_xz_decomp_exit(struct xz_comp_ctx *ctx)
+{
+ xz_dec_end(ctx->decomp_state);
+}
+
+static int crypto_xz_init(struct crypto_tfm *tfm)
+{
+ struct xz_comp_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ return crypto_xz_decomp_init(ctx);
+}
+
+static void crypto_xz_exit(struct crypto_tfm *tfm)
+{
+ struct xz_comp_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ crypto_xz_decomp_exit(ctx);
+}
+
+static int crypto_xz_compress(struct crypto_tfm *tfm, const u8 *src,
+ unsigned int slen, u8 *dst, unsigned int *dlen)
+{
+ return -EOPNOTSUPP;
+}
+
+static int crypto_xz_decompress(struct crypto_tfm *tfm, const u8 *src,
+ unsigned int slen, u8 *dst, unsigned int *dlen)
+{
+ struct xz_comp_ctx *dctx = crypto_tfm_ctx(tfm);
+ struct xz_buf *xz_buf = &dctx->decomp_buf;
+ int ret;
+
+ memset(xz_buf, '\0', sizeof(struct xz_buf));
+
+ xz_buf->in = (u8 *) src;
+ xz_buf->in_pos = 0;
+ xz_buf->in_size = slen;
+ xz_buf->out = (u8 *) dst;
+ xz_buf->out_pos = 0;
+ xz_buf->out_size = *dlen;
+
+ ret = xz_dec_run(dctx->decomp_state, xz_buf);
+ if (ret != XZ_STREAM_END) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ *dlen = xz_buf->out_pos;
+ ret = 0;
+
+out:
+ return ret;
+}
+
+static struct crypto_alg crypto_xz_alg = {
+ .cra_name = "xz",
+ .cra_flags = CRYPTO_ALG_TYPE_COMPRESS,
+ .cra_ctxsize = sizeof(struct xz_comp_ctx),
+ .cra_module = THIS_MODULE,
+ .cra_list = LIST_HEAD_INIT(crypto_xz_alg.cra_list),
+ .cra_init = crypto_xz_init,
+ .cra_exit = crypto_xz_exit,
+ .cra_u = { .compress = {
+ .coa_compress = crypto_xz_compress,
+ .coa_decompress = crypto_xz_decompress } }
+};
+
+static int __init crypto_xz_mod_init(void)
+{
+ return crypto_register_alg(&crypto_xz_alg);
+}
+
+static void __exit crypto_xz_mod_exit(void)
+{
+ crypto_unregister_alg(&crypto_xz_alg);
+}
+
+module_init(crypto_xz_mod_init);
+module_exit(crypto_xz_mod_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Crypto XZ decompression support");
+MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");

94
target/linux/generic/patches-3.3/541-ubifs-xz-decompression-support.patch Normal file
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@ -0,0 +1,94 @@
--- a/fs/ubifs/Kconfig
+++ b/fs/ubifs/Kconfig
@@ -5,8 +5,10 @@ config UBIFS_FS
select CRYPTO if UBIFS_FS_ADVANCED_COMPR
select CRYPTO if UBIFS_FS_LZO
select CRYPTO if UBIFS_FS_ZLIB
+ select CRYPTO if UBIFS_FS_XZ
select CRYPTO_LZO if UBIFS_FS_LZO
select CRYPTO_DEFLATE if UBIFS_FS_ZLIB
+ select CRYPTO_XZ if UBIFS_FS_XZ
depends on MTD_UBI
help
UBIFS is a file system for flash devices which works on top of UBI.
@@ -42,6 +44,14 @@ config UBIFS_FS_ZLIB
help
Zlib compresses better than LZO but it is slower. Say 'Y' if unsure.
+config UBIFS_FS_XZ
+ bool "XZ decompression support" if UBIFS_FS_ADVANCED_COMPR
+ depends on UBIFS_FS
+ default y
+ help
+ XZ compresses better the ZLIB but it is slower.
+ Say 'Y' if unsure.
+
# Debugging-related stuff
config UBIFS_FS_DEBUG
bool "Enable debugging support"
--- a/fs/ubifs/compress.c
+++ b/fs/ubifs/compress.c
@@ -71,6 +71,24 @@ static struct ubifs_compressor zlib_comp
};
#endif
+#ifdef CONFIG_UBIFS_FS_XZ
+static DEFINE_MUTEX(xz_enc_mutex);
+static DEFINE_MUTEX(xz_dec_mutex);
+
+static struct ubifs_compressor xz_compr = {
+ .compr_type = UBIFS_COMPR_XZ,
+ .comp_mutex = &xz_enc_mutex,
+ .decomp_mutex = &xz_dec_mutex,
+ .name = "xz",
+ .capi_name = "xz",
+};
+#else
+static struct ubifs_compressor zlib_compr = {
+ .compr_type = UBIFS_COMPR_XZ,
+ .name = "xz",
+};
+#endif
+
/* All UBIFS compressors */
struct ubifs_compressor *ubifs_compressors[UBIFS_COMPR_TYPES_CNT];
@@ -233,9 +251,15 @@ int __init ubifs_compressors_init(void)
if (err)
goto out_lzo;
+ err = compr_init(&xz_compr);
+ if (err)
+ goto out_zlib;
+
ubifs_compressors[UBIFS_COMPR_NONE] = &none_compr;
return 0;
+out_zlib:
+ compr_exit(&zlib_compr);
out_lzo:
compr_exit(&lzo_compr);
return err;
@@ -248,4 +272,5 @@ void ubifs_compressors_exit(void)
{
compr_exit(&lzo_compr);
compr_exit(&zlib_compr);
+ compr_exit(&xz_compr);
}
--- a/fs/ubifs/ubifs-media.h
+++ b/fs/ubifs/ubifs-media.h
@@ -332,12 +332,14 @@ enum {
* UBIFS_COMPR_NONE: no compression
* UBIFS_COMPR_LZO: LZO compression
* UBIFS_COMPR_ZLIB: ZLIB compression
+ * UBIFS_COMPR_XZ: XZ compression
* UBIFS_COMPR_TYPES_CNT: count of supported compression types
*/
enum {
UBIFS_COMPR_NONE,
UBIFS_COMPR_LZO,
UBIFS_COMPR_ZLIB,
+ UBIFS_COMPR_XZ,
UBIFS_COMPR_TYPES_CNT,
};

67
target/linux/generic/patches-3.3/550-ubifs-symlink-xattr-support.patch Normal file
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@ -0,0 +1,67 @@
--- a/fs/ubifs/file.c
+++ b/fs/ubifs/file.c
@@ -1575,6 +1575,12 @@ const struct inode_operations ubifs_syml
.follow_link = ubifs_follow_link,
.setattr = ubifs_setattr,
.getattr = ubifs_getattr,
+#ifdef CONFIG_UBIFS_FS_XATTR
+ .setxattr = ubifs_setxattr,
+ .getxattr = ubifs_getxattr,
+ .listxattr = ubifs_listxattr,
+ .removexattr = ubifs_removexattr,
+#endif
};
const struct file_operations ubifs_file_operations = {
--- a/fs/ubifs/journal.c
+++ b/fs/ubifs/journal.c
@@ -553,7 +553,8 @@ int ubifs_jnl_update(struct ubifs_info *
dbg_jnl("ino %lu, dent '%.*s', data len %d in dir ino %lu",
inode->i_ino, nm->len, nm->name, ui->data_len, dir->i_ino);
- ubifs_assert(dir_ui->data_len == 0);
+ if (!xent)
+ ubifs_assert(dir_ui->data_len == 0);
ubifs_assert(mutex_is_locked(&dir_ui->ui_mutex));
dlen = UBIFS_DENT_NODE_SZ + nm->len + 1;
@@ -573,6 +574,13 @@ int ubifs_jnl_update(struct ubifs_info *
aligned_dlen = ALIGN(dlen, 8);
aligned_ilen = ALIGN(ilen, 8);
len = aligned_dlen + aligned_ilen + UBIFS_INO_NODE_SZ;
+ if (xent) {
+ /*
+ * Make sure to account for dir_ui->data_len in
+ * length calculation in case there is extended attribute.
+ */
+ len += dir_ui->data_len;
+ }
dent = kmalloc(len, GFP_NOFS);
if (!dent)
return -ENOMEM;
@@ -649,7 +657,8 @@ int ubifs_jnl_update(struct ubifs_info *
ino_key_init(c, &ino_key, dir->i_ino);
ino_offs += aligned_ilen;
- err = ubifs_tnc_add(c, &ino_key, lnum, ino_offs, UBIFS_INO_NODE_SZ);
+ err = ubifs_tnc_add(c, &ino_key, lnum, ino_offs,
+ UBIFS_INO_NODE_SZ + dir_ui->data_len);
if (err)
goto out_ro;
--- a/fs/ubifs/xattr.c
+++ b/fs/ubifs/xattr.c
@@ -209,12 +209,12 @@ static int change_xattr(struct ubifs_inf
goto out_free;
}
inode->i_size = ui->ui_size = size;
- ui->data_len = size;
mutex_lock(&host_ui->ui_mutex);
host->i_ctime = ubifs_current_time(host);
host_ui->xattr_size -= CALC_XATTR_BYTES(ui->data_len);
host_ui->xattr_size += CALC_XATTR_BYTES(size);
+ ui->data_len = size;
/*
* It is important to write the host inode after the xattr inode

4
target/linux/generic/patches-3.3/940-ocf_kbuild_integration.patch
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@ -1,6 +1,6 @@
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -961,3 +961,6 @@ config CRYPTO_USER_API_SKCIPHER
@@ -968,3 +968,6 @@ config CRYPTO_USER_API_SKCIPHER
source "drivers/crypto/Kconfig"
endif # if CRYPTO
@ -9,7 +9,7 @@
+
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -91,6 +91,8 @@ obj-$(CONFIG_CRYPTO_USER_API) += af_alg.
@@ -92,6 +92,8 @@ obj-$(CONFIG_CRYPTO_USER_API) += af_alg.
obj-$(CONFIG_CRYPTO_USER_API_HASH) += algif_hash.o
obj-$(CONFIG_CRYPTO_USER_API_SKCIPHER) += algif_skcipher.o