On 5/30/13 6:49 AM, Robert Haas wrote:
> On Wed, May 29, 2013 at 10:42 AM, Andres Freund <andres@2ndquadrant.com> wrote:
>> So we don't even know whether we can read. I think that means we need to
>> zero the file anyway...
>
> Surely this is undue pessimism.
There have been many occasions where I've found the Linux kernel
defining support for POSIX behavior with a NOP stub that basically says
"we should make this work one day". I don't know whether the fallocate
code is one of those or a fully implemented call. Based on that
history, until I see a reader that validates the resulting files are
good I have to assume they're not.
--
Greg Smith 2ndQuadrant US greg@2ndQuadrant.com Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support www.2ndQuadrant.com
