Date: Tue, 26 May 2009 15:03:13 +0300 From: Kostik Belousov <kostikbel@gmail.com> To: Menshikov Konstantin <kostjn@peterhost.ru> Cc: freebsd-hackers@freebsd.org Subject: Re: Disk quota for Jail. Discussion. Message-ID: <20090526120313.GA1927@deviant.kiev.zoral.com.ua> In-Reply-To: <4A1B8CF8.7030102@peterhost.ru>
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[-- Attachment #1 --] On Tue, May 26, 2009 at 10:32:24AM +0400, Menshikov Konstantin wrote: > Hi. > Jail now have no disk quotas. > Users which use jail, use separate zfs or md device for jail, but it > from a hopelessness. > It is necessary to discuss possible ways of realisation. > I suggest to make disk quotas for jail on the basis of the user quotas. > > Introduction. > User UID and GID are located in inode and are always accessible. > No information about jail in ufs is present. All activity jail is > limited root path. > > The work scheme. > In structure prison it is added structures containing disk quotas and usage. > At start Jail, we calculate the size root path and number of files in > it, thus receiving current use of a disk. > In functions of allocation of disk blocks and inode, we check quotas and > we increase current use. UFS cannot determine whether the new allocation goes under the jail root or not. > If jail exceeds a quota, inquiry about allocation of the disk block or > inode it is rejected. > After work end jail the information on disk use is lost. > > What do you think about it? > There are other offers? > -- > Menshikov Konstantin. > > _______________________________________________ > freebsd-hackers@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org" [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (FreeBSD) iEYEARECAAYFAkob2oEACgkQC3+MBN1Mb4iBpACgo/032KYBBnt2K6Ety2UgWvZv 6F4AoOi9yZj9il5/SpsFIA5duCONcuqH =+nNi -----END PGP SIGNATURE-----home | help
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