linux-kernel - Re: [V9fs-developer] [PATCH] fs: 9p: add generic splice

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Message-ID: <20201201153950.GA20545@nautica>
Date:   Tue, 1 Dec 2020 16:39:50 +0100
From:   Dominique Martinet <asmadeus@...ewreck.org>
To:     Toke Høiland-Jørgensen <toke@...hat.com>
Cc:     Eric Van Hensbergen <ericvh@...il.com>,
        Latchesar Ionkov <lucho@...kov.net>,
        linux-kernel@...r.kernel.org, v9fs-developer@...ts.sourceforge.net
Subject: Re: [V9fs-developer] [PATCH] fs: 9p: add generic splice_read file
 operations

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