| To: | "Amit K. Arora" <aarora@xxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: Interface for the new fallocate() system call |
| From: | Jakub Jelinek <jakub@xxxxxxxxxx> |
| Date: | Fri, 20 Apr 2007 10:59:18 -0400 |
| Cc: | Andreas Dilger <adilger@xxxxxxxxxxxxx>, linux-fsdevel@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-ext4@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx, cmm@xxxxxxxxxx, suparna@xxxxxxxxxx, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, torvalds@xxxxxxxxxxxxxxxxxxxx |
| In-reply-to: | <20070420135146.GA21352@amitarora.in.ibm.com> |
| References: | <20070316143101.GA10152@amitarora.in.ibm.com> <20070316161704.GE8525@osiris.boeblingen.de.ibm.com> <20070317111036.GC29931@parisc-linux.org> <20070321120425.GA27273@amitarora.in.ibm.com> <20070329115126.GB7374@amitarora.in.ibm.com> <20070329101010.7a2b8783.akpm@linux-foundation.org> <20070330071417.GI355@devserv.devel.redhat.com> <20070417125514.GA7574@amitarora.in.ibm.com> <20070418130600.GW5967@schatzie.adilger.int> <20070420135146.GA21352@amitarora.in.ibm.com> |
| Reply-to: | Jakub Jelinek <jakub@xxxxxxxxxx> |
| Sender: | xfs-bounce@xxxxxxxxxxx |
| User-agent: | Mutt/1.4.1i |
On Fri, Apr 20, 2007 at 07:21:46PM +0530, Amit K. Arora wrote:
> Ok.
> In this case we may have to consider following things:
>
> 1) Obviously, for this glibc will have to call fallocate() syscall with
> different arguments on s390, than other archs. I think this should be
> doable and should not be an issue with glibc folks (right?).
glibc can cope with this easily, will just add
sysdeps/unix/sysv/linux/s390/fallocate.c or something similar to override
the generic Linux implementation.
> 2) we also need to see how strace behaves in this case. With little
> knowledge that I have of strace, I don't think it should depend on
> argument ordering of a system call on different archs (since it uses
> ptrace internally and that should take care of it). But, it will be
> nice if someone can confirm this.
strace would solve this with #ifdef mess, it already does that in many
places so guess another few lines don't make it significantly worse.
Jakub
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