[Gluster-devel] mmap not working

Anand Avati avati at zresearch.com
Mon Dec 10 15:45:10 UTC 2007


Mickey,
 if you can get it working, and if some reasonable amount of testing has
happened on it, we can include it in the glfs patched fuse.

thanks,
avati

2007/12/10, Mickey Mazarick <mic at digitaltadpole.com>:
>
> I haven't tested this with tcp yet either, but I'm pretty sure it's fuse
> that's preventing mmap from working fully.
> I've turned direct-io off, but mmap functions still throw errors. I did
> attempt to side-step the problem by creating a loop device and mounting
> it but that didn't work for the same reasons.
>
> It's my understanding that fuse doesn't support mmap writing fully.
> There is a questionable patch out there:
> http://kerneltrap.org/mailarchive/linux-fsdevel/2007/11/15/417491
>
> Is this something that's worth trying add to the  patched glusterfs fuse
> module? I was going to take a stab at it but wanted a second opinion
> because my C skills are now half a decade rusty.
>
>
> Thanks!
> --
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-- Hofstadter's Law



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