Re: [V9fs-developer] [PATCH] fs: 9p: add generic splice_read file operations

From: Dominique Martinet
Date: Tue Dec 01 2020 - 10:40:49 EST


Toke Høiland-Jørgensen wrote on Tue, Dec 01, 2020:
> > This made me test copy_file_range, and it works with both as well (used
> > not to)
> >
> > interestingly on older kernels this came as default somehow? I have
> > splice working on 5.4.67 :/ so this broke somewhat recently...
>
> Huh, no idea; this is my first time digging into filesystem code, I
> normally do networking and BPF :)

In case anyone else wants to know, this broke in 5.10-rc1 with
36e2c7421f02 ("fs: don't allow splice read/write without explicit ops")

So really a recent regression, good catch :)

--
Dominique