Date: Mon, 3 Jun 2019 16:27:26 -0600 From: Alan Somers <asomers@freebsd.org> To: Konstantin Belousov <kostikbel@gmail.com> Cc: FreeBSD Hackers <freebsd-hackers@freebsd.org> Subject: Re: How to VOP_RECLAIM on demand? Message-ID: <CAOtMX2h0_buzXP0ZyrXmQqFkLNqZEY8jthvn8uTRHioA9ROwfw@mail.gmail.com> In-Reply-To: <20190603211533.GS75280@kib.kiev.ua> References: <CAOtMX2h9zdwczP3ZEawHHQgnutu6G9kqvHOO9dCW%2BX-N1zoYkw@mail.gmail.com> <20190603211533.GS75280@kib.kiev.ua>
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On Mon, Jun 3, 2019 at 3:15 PM Konstantin Belousov <kostikbel@gmail.com> wrote: > > On Mon, Jun 03, 2019 at 02:38:11PM -0600, Alan Somers wrote: > > It would be useful if I could trigger VOP_RECLAIM on demand for a > > certain file or pathname. There are some edge cases in fusefs that I > > can't test otherwise. But I don't see any way to do it. Is such a > > thing possible? Would it be worth adding a special syscall for this > > purpose? It could be guarded with INVARIANTS so it wouldn't affect > > production builds. > > Look at revoke(2) and VOP_REVOKE(). It is only implemented and used > for devfs tty nodes. I don't understand how that would help. What does VOP_REVOKE have in common with VOP_RECLAIM?
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