diff options
author | Heiko Schocher <hs@denx.de> | 2014-06-24 12:10:04 +0400 |
---|---|---|
committer | Tom Rini <trini@ti.com> | 2014-08-26 03:25:55 +0400 |
commit | ff94bc40af3481d47546595ba73c136de6af6929 (patch) | |
tree | 858119077e2ca8a992589185c36bd431e4a8c80e /fs/ubifs/ubifs.c | |
parent | 0c06db59836746c5caf397e642cd0f2bf1cc20a6 (diff) | |
download | u-boot-ff94bc40af3481d47546595ba73c136de6af6929.tar.xz |
mtd, ubi, ubifs: resync with Linux-3.14
resync ubi subsystem with linux:
commit 455c6fdbd219161bd09b1165f11699d6d73de11c
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Sun Mar 30 20:40:15 2014 -0700
Linux 3.14
A nice side effect of this, is we introduce UBI Fastmap support
to U-Boot.
Signed-off-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Tom Rini <trini@ti.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Sergey Lapin <slapin@ossfans.org>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Joerg Krause <jkrause@posteo.de>
Diffstat (limited to 'fs/ubifs/ubifs.c')
-rw-r--r-- | fs/ubifs/ubifs.c | 115 |
1 files changed, 109 insertions, 6 deletions
diff --git a/fs/ubifs/ubifs.c b/fs/ubifs/ubifs.c index 273c0a9638..b91a6fd26f 100644 --- a/fs/ubifs/ubifs.c +++ b/fs/ubifs/ubifs.c @@ -26,6 +26,10 @@ #include "ubifs.h" #include <u-boot/zlib.h> +#define __UBOOT__ +#include <linux/err.h> +#include <linux/lzo.h> + DECLARE_GLOBAL_DATA_PTR; /* compress.c */ @@ -44,20 +48,27 @@ static int gzip_decompress(const unsigned char *in, size_t in_len, /* Fake description object for the "none" compressor */ static struct ubifs_compressor none_compr = { .compr_type = UBIFS_COMPR_NONE, - .name = "no compression", + .name = "none", .capi_name = "", .decompress = NULL, }; static struct ubifs_compressor lzo_compr = { .compr_type = UBIFS_COMPR_LZO, - .name = "LZO", +#ifndef __UBOOT__ + .comp_mutex = &lzo_mutex, +#endif + .name = "lzo", .capi_name = "lzo", .decompress = lzo1x_decompress_safe, }; static struct ubifs_compressor zlib_compr = { .compr_type = UBIFS_COMPR_ZLIB, +#ifndef __UBOOT__ + .comp_mutex = &deflate_mutex, + .decomp_mutex = &inflate_mutex, +#endif .name = "zlib", .capi_name = "deflate", .decompress = gzip_decompress, @@ -66,6 +77,82 @@ static struct ubifs_compressor zlib_compr = { /* All UBIFS compressors */ struct ubifs_compressor *ubifs_compressors[UBIFS_COMPR_TYPES_CNT]; + +#ifdef __UBOOT__ +/* from mm/util.c */ + +/** + * kmemdup - duplicate region of memory + * + * @src: memory region to duplicate + * @len: memory region length + * @gfp: GFP mask to use + */ +void *kmemdup(const void *src, size_t len, gfp_t gfp) +{ + void *p; + + p = kmalloc(len, gfp); + if (p) + memcpy(p, src, len); + return p; +} + +struct crypto_comp { + int compressor; +}; + +static inline struct crypto_comp *crypto_alloc_comp(const char *alg_name, + u32 type, u32 mask) +{ + struct ubifs_compressor *comp; + struct crypto_comp *ptr; + int i = 0; + + ptr = malloc(sizeof(struct crypto_comp)); + while (i < UBIFS_COMPR_TYPES_CNT) { + comp = ubifs_compressors[i]; + if (!comp) { + i++; + continue; + } + if (strncmp(alg_name, comp->capi_name, strlen(alg_name)) == 0) { + ptr->compressor = i; + return ptr; + } + i++; + } + if (i >= UBIFS_COMPR_TYPES_CNT) { + ubifs_err("invalid compression type %s", alg_name); + free (ptr); + return NULL; + } + return ptr; +} +static inline int crypto_comp_decompress(struct crypto_comp *tfm, + const u8 *src, unsigned int slen, + u8 *dst, unsigned int *dlen) +{ + struct ubifs_compressor *compr = ubifs_compressors[tfm->compressor]; + int err; + + if (compr->compr_type == UBIFS_COMPR_NONE) { + memcpy(dst, src, slen); + *dlen = slen; + return 0; + } + + err = compr->decompress(src, slen, dst, (size_t *)dlen); + if (err) + ubifs_err("cannot decompress %d bytes, compressor %s, " + "error %d", slen, compr->name, err); + + return err; + + return 0; +} +#endif + /** * ubifs_decompress - decompress data. * @in_buf: data to decompress @@ -102,10 +189,15 @@ int ubifs_decompress(const void *in_buf, int in_len, void *out_buf, return 0; } - err = compr->decompress(in_buf, in_len, out_buf, (size_t *)out_len); + if (compr->decomp_mutex) + mutex_lock(compr->decomp_mutex); + err = crypto_comp_decompress(compr->cc, in_buf, in_len, out_buf, + (unsigned int *)out_len); + if (compr->decomp_mutex) + mutex_unlock(compr->decomp_mutex); if (err) - ubifs_err("cannot decompress %d bytes, compressor %s, " - "error %d", in_len, compr->name, err); + ubifs_err("cannot decompress %d bytes, compressor %s, error %d", + in_len, compr->name, err); return err; } @@ -127,6 +219,15 @@ static int __init compr_init(struct ubifs_compressor *compr) ubifs_compressors[compr->compr_type]->decompress += gd->reloc_off; #endif + if (compr->capi_name) { + compr->cc = crypto_alloc_comp(compr->capi_name, 0, 0); + if (IS_ERR(compr->cc)) { + ubifs_err("cannot initialize compressor %s, error %ld", + compr->name, PTR_ERR(compr->cc)); + return PTR_ERR(compr->cc); + } + } + return 0; } @@ -188,7 +289,9 @@ static int filldir(struct ubifs_info *c, const char *name, int namlen, } ctime_r((time_t *)&inode->i_mtime, filetime); printf("%9lld %24.24s ", inode->i_size, filetime); +#ifndef __UBOOT__ ubifs_iput(inode); +#endif printf("%s\n", name); @@ -562,7 +665,7 @@ static int read_block(struct inode *inode, void *addr, unsigned int block, dump: ubifs_err("bad data node (block %u, inode %lu)", block, inode->i_ino); - dbg_dump_node(c, dn); + ubifs_dump_node(c, dn); return -EINVAL; } |