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| author | Jonas Gorski <jogo@openwrt.org> | 2015-12-02 22:23:22 +0000 |
|---|---|---|
| committer | Jonas Gorski <jogo@openwrt.org> | 2015-12-02 22:23:22 +0000 |
| commit | 621677154f39f2e0b698a558b8b795db84a8e014 (patch) | |
| tree | 3c4d60241f9ad7f52f12aa022af8b5a684b2ab08 /target/linux/generic/patches-4.4/541-ubifs-xz-decompression-support.patch | |
| parent | 4454a3fb6375cf1adf17f63a54cd7660bc40caa7 (diff) | |
| download | upstream-621677154f39f2e0b698a558b8b795db84a8e014.tar.gz upstream-621677154f39f2e0b698a558b8b795db84a8e014.tar.bz2 upstream-621677154f39f2e0b698a558b8b795db84a8e014.zip | |
kernel: add linux 4.4 support
Based on 4.4-rc3. Runtime tested on MIPS.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
SVN-Revision: 47701
Diffstat (limited to 'target/linux/generic/patches-4.4/541-ubifs-xz-decompression-support.patch')
| -rw-r--r-- | target/linux/generic/patches-4.4/541-ubifs-xz-decompression-support.patch | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/target/linux/generic/patches-4.4/541-ubifs-xz-decompression-support.patch b/target/linux/generic/patches-4.4/541-ubifs-xz-decompression-support.patch new file mode 100644 index 0000000000..277d91507b --- /dev/null +++ b/target/linux/generic/patches-4.4/541-ubifs-xz-decompression-support.patch @@ -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. +@@ -36,6 +38,14 @@ 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. ++ + config UBIFS_ATIME_SUPPORT + bool "Access time support" if UBIFS_FS + depends on UBIFS_FS +--- 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 xz_compr = { ++ .compr_type = UBIFS_COMPR_XZ, ++ .name = "xz", ++}; ++#endif ++ + /* All UBIFS compressors */ + struct ubifs_compressor *ubifs_compressors[UBIFS_COMPR_TYPES_CNT]; + +@@ -232,9 +250,15 @@ 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; +@@ -247,4 +271,5 @@ 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, + }; + |