Messages in this thread |  | | Date | Fri, 2 Mar 2007 09:01:05 -0800 | From | Andrew Morton <> | Subject | Re: [RFC] Heads up on sys_fallocate() |
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On Fri, 02 Mar 2007 08:13:00 -0800 Badari Pulavarty <pbadari@us.ibm.com> wrote:
> > > > > What about > > > if the > > > blocks already exists ? What would be return values in those cases ? > > > > 0 on success, other normal errors oetherwise.. > > > > If asked for a range that includes already-allocated blocks, you just > > allocate any non-allocated blocks in the range, I think. > > Yes. What I was trying to figure out is, if there is a requirement that > interface need to return exact number of bytes it *really* allocated > (like write() or read()). I can't think of any, but just wanted to > through it out..
Hopefully not, because posix didn't anticipate that.
We could of course return a positive number on success, but it'd get tricky on 32-bit machines.
> BTW, what is the interface for finding out what is the size of the > pre-allocated file ?
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