On Wed, 10 Jan 2024 at 16:19, Ahelenia Ziemiańska
wrote:
> > We need to find an alternative to refusing splice, since this is not
> > going to fly, IMO.
> The alternative is to not hold the lock. See the references in the
> cover letter for why this wasn't done. IMO a potential slight perf
> hit
On Wed, Jan 10, 2024 at 02:43:04PM +0100, Miklos Szeredi wrote:
> On Thu, 21 Dec 2023 at 04:09, Ahelenia Ziemiańska
> wrote:
> > Potentially-blocking splice_reads are allowed for normal filesystems
> > like NFS because they're blessed by root.
> >
> > FUSE is commonly used suid-root, and allows
On Thu, 21 Dec 2023 at 04:09, Ahelenia Ziemiańska
wrote:
>
> Potentially-blocking splice_reads are allowed for normal filesystems
> like NFS because they're blessed by root.
>
> FUSE is commonly used suid-root, and allows anyone to trivially create
> a file that, when spliced from, will just
Potentially-blocking splice_reads are allowed for normal filesystems
like NFS because they're blessed by root.
FUSE is commonly used suid-root, and allows anyone to trivially create
a file that, when spliced from, will just sleep forever with the pipe
lock held.
The only way IPC to the fusing
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