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ubifs: Add support for zstd compression.

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zstd shows a good compression rate and is faster than lzo,
also on slow ARM cores.

Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Signed-off-by: Michele Dionisio <michele.dionisio@gmail.com>
[rw: rewrote commit message]
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Michele Dionisio
2019-05-15 23:02:02 +02:00
committed by Richard Weinberger
parent 817aa09484
commit eeabb9866e
4 changed files with 40 additions and 1 deletions
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2
fs/ubifs/super.c
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@@ -1045,6 +1045,8 @@ static int ubifs_parse_options(struct ubifs_info *c, char *options,
c->mount_opts.compr_type = UBIFS_COMPR_LZO;
else if (!strcmp(name, "zlib"))
c->mount_opts.compr_type = UBIFS_COMPR_ZLIB;
else if (!strcmp(name, "zstd"))
c->mount_opts.compr_type = UBIFS_COMPR_ZSTD;
else {
ubifs_err(c, "unknown compressor \"%s\"", name); //FIXME: is c ready?
kfree(name);