From mboxrd@z Thu Jan 1 00:00:00 1970 From: devzero@web.de Subject: Re: Compressed Filesystem Date: Tue, 16 Dec 2008 19:14:23 +0100 Message-ID: <545082891@web.de> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Cc: linux-btrfs@vger.kernel.org To: Chris Mason , Lee Trager Return-path: List-ID: > I'd much rather have just one compression scheme per FS. If people n= eed > 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. > -----Urspr=FCngliche Nachricht----- > Von: "Chris Mason" > Gesendet: 16.12.08 16:26:28 > An: Lee Trager > CC: linux-btrfs@vger.kernel.org > Betreff: Re: Compressed Filesystem > On Tue, 2008-12-16 at 10:20 -0500, Lee Trager wrote: > > While I agree that the command you send should be possible it wasn'= t > > exactly what I was thinking. Currently I am working on a way for th= e > > user to individually set which files/directories they want compress= ed or > > not. What I was saying is that assuming you are in a mounted btrfs > > directory you could do something like > >=20 > > 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 > > chattr -c file2 Uncompress file2 > > chattr +c none dir3 Uncompress dir3 but leave contents as is > >=20 > > 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 > > the disk. > >=20 >=20 > This is one of those places where more options isn't always better. > Every option adds complexity to the filesystem and the testing matrix= =2E =20 >=20 > I'd much rather have just one compression scheme per FS. If people n= eed > a specific compression scheme for a specific file, they can just > compress it in userland. >=20 > -chris >=20 >=20 >=20 _______________________________________________________________________ Sensationsangebot verl=E4ngert: WEB.DE FreeDSL - Telefonanschluss + DSL f=FCr nur 16,37 Euro/mtl.!* http://dsl.web.de/?ac=3DOM.AD.AD008K15039B7= 069a -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" = in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html