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SubjectRe: Used space in bytes
> On 14 Nov 00 at 18:39, Jan Kara wrote:
> > Hello.
> >
> > > On 9 Nov 00 at 19:18, Jan Kara wrote:
> > > > used (I tried to contact Ulrich Drepper <drepper@redhat.com> who should
> > > > be right person to ask about such things (at least I was said so) but go
> > > > no answer...). Does anybody have any better solution?
> > > > I know about two others - really ugly ones:
> > > > 1) fs specific ioctl()
> > > > 2) compute needed number of bytes from st_size and st_blocks, which is
> > > > currently possible but won't be in future
> > >
> > > If I may, please do not add it into stat/stat64 structure. On Netware,
> > > computing really used space can take eons because of it has to read
> > > allocation tables to memory to find size. It is usually about 500%
> > > slower than retrieving all other file informations.
> > And how do you fill in st_blocks field?
>
> Currently as st_size / st_blksize. If I'll want to report real used size,
> so that quotas could be built on the top of Netware space restrictions,
> Netware is willing to return size in its allocation blocks after holes
> and compression takes place, but while computation time is afforable for
> open(), it is not for stat()ing thousands of entries in directories.
Hmm.. But that's problem as 'quotacheck' uses stat to get space used by
file... So it won't work on Netware anyway.

Honza

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