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UBIFS: introduce compression mount options

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It is very handy to be able to change default UBIFS compressor
via mount options. Introduce -o compr=<name> mount option support.
Currently only "none", "lzo" and "zlib" compressors are supported.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
This commit is contained in:
Artem Bityutskiy
2008-11-01 14:57:49 +02:00
parent a1dc080c27
commit 553dea4dd5
5 changed files with 59 additions and 16 deletions
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6
fs/ubifs/compress.c
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@@ -33,7 +33,7 @@
/* 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 = "",
};
@@ -43,13 +43,13 @@ static DEFINE_MUTEX(lzo_mutex);
static struct ubifs_compressor lzo_compr = {
.compr_type = UBIFS_COMPR_LZO,
.comp_mutex = &lzo_mutex,
.name = "LZO",
.name = "lzo",
.capi_name = "lzo",
};
#else
static struct ubifs_compressor lzo_compr = {
.compr_type = UBIFS_COMPR_LZO,
.name = "LZO",
.name = "lzo",
};
#endif