Compressed Filesystem
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I'd much rather have just one compression scheme per FS. If people n=
eed
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a specific compression scheme for a specific file, they can just compress it in userland.
yes, i also think one compression scheme per FS is absolutely sufficien= t.
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-----Urspr=FCngliche Nachricht-----
Von: "Chris Mason" <[email protected]>
Gesendet: 16.12.08 16:26:28
An: Lee Trager <[email protected]>
CC: [email protected]
Betreff: Re: Compressed FilesystemQuoted 1 line · Lee Trager
While I agree that the command you send should be possible it wasn'=
t
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exactly what I was thinking. Currently I am working on a way for th=
e
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user to individually set which files/directories they want compress=
ed or
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not. What I was saying is that assuming you are in a mounted btrfs directory you could do something like
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chattr -R +c zlib dir1 Compress dir1 and all its contents with zlib
chattr -R +c bzip dir2 Compress dir2 and all its contents with bzip
chattr +c lzo file1 Compress fil1 with lzo
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chattr -c file2 Uncompress file2
chattr +c none dir3 Uncompress dir3 but leave contents as is
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If the user did something like=20
mount -o compress,cscheme=3Dzlib/dev/xyz/mntpoint
and then
chattr +c /mntpoint/dir
/mntpoint/dir would default to zlib as would anything else written =
to
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the disk.
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This is one of those places where more options isn't always better. Every option adds complexity to the filesystem and the testing matrix=
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I'd much rather have just one compression scheme per FS. If people n=
eed
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a specific compression scheme for a specific file, they can just compress it in userland.
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-chris
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