mirror of
git://git.openwrt.org/openwrt/openwrt.git
synced 2025-10-22 17:44:26 -04:00
93 lines
2.2 KiB
Diff
93 lines
2.2 KiB
Diff
--- 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.
|
|
@@ -35,3 +37,12 @@ config UBIFS_FS_ZLIB
|
|
default y
|
|
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.
|
|
+
|
|
--- 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,
|
|
};
|
|
|