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Re: VOP_STRATEGY for devices and pipes
On Thu, Jul 15, 2021 at 11:00:36AM -0700, Chuck Silvers wrote:
> setting an extattr on a device node in UFS is already disallowed.
> ffs_setextattr() has this check:
> if (ap->a_vp->v_type == VCHR || ap->a_vp->v_type == VBLK)
> return (EOPNOTSUPP);
> I have not checked other file systems to see if they have an
> equivalent check.
I don't think anything else does extattrs. tmpfs doesn't, for example.
> I think we should continue to support extattrs on fifos for two reasons:
> - extattrs are used to implement ACLs, and it is useful to be able
> to set an ACL on a fifo.
> - it is good to remain more compatible with FreeBSD in this area.
of course it's also useful to be able to set an ACL on a device...
but not now.
David A. Holland
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