Re: [PATCH v2 19/25] netfs: Speed up buffered reading

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On Tue, Sep 24, 2024 at 05:01:13PM -0700, Eduard Zingerman wrote:
> On Wed, 2024-09-25 at 00:20 +0100, David Howells wrote:
> > Could you try the attached?  It may help, though this fixes a bug in the
> > write-side, not the read-side.
> >
> 
> Hi David,
> 
> I tried this patch on top of bpf-next but behaviour seems unchanged,
> dmesg is at [1].
> 
> [1] https://gist.github.com/eddyz87/ce45f90453980af6a5fadeb652e109f3


BTW, I'm hitting the same issue over Linus's tree now, but unfortunately
there is no WA in my case as I don't have "cache=mmap" in rootflags.
https://lore.kernel.org/all/20240924094809.GA1182241@unreal/#t

It came to Linus with Christian Brauner's pull request.
https://lore.kernel.org/all/20240913-vfs-netfs-39ef6f974061@brauner/

Thanks

> 
> Thanks,
> Eduard
> 
> [...]
> 
> 




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