Re: [RFC] sys_punchhole()

From: Rob Landley
Date: Wed Nov 16 2005 - 07:09:25 EST

On Friday 11 November 2005 02:25, Ingo Oeser wrote:
> Hi,
> On Friday 11 November 2005 00:32, Andrew Morton wrote:
> > Badari Pulavarty <pbadari@xxxxxxxxxx> wrote:
> > > We discussed this in madvise(REMOVE) thread - to add support
> > > for sys_punchhole(fd, offset, len) to complete the functionality
> > > (in the future).

You know, if you wanted to get really really gross and disgusting about this,
you could always have write(fd, NULL, count) punch a hole in the file. (Then
have libc's write() check for NULL and error out, and have a seprate punch()
call that does the write with the null...)

Just one way to avoid introducing a new syscall...

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