[Bug 225934] FIFOs lack kevent EVFILT_VNODE support

From: <bugzilla-noreply_at_freebsd.org>
Date: Tue, 12 Oct 2021 07:44:50 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=225934

--- Comment #6 from commit-hook@FreeBSD.org ---
A commit in branch main references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=7259ca31048e5ced8e7f90657a3d7084aeafdf51

commit 7259ca31048e5ced8e7f90657a3d7084aeafdf51
Author:     Kyle Evans <kevans@FreeBSD.org>
AuthorDate: 2021-10-02 05:23:03 +0000
Commit:     Kyle Evans <kevans@FreeBSD.org>
CommitDate: 2021-10-12 07:43:07 +0000

    fifos: delegate unhandled kqueue filters to underlying filesystem

    This gives the vfs layer a chance to provide handling for EVFILT_VNODE,
    for instance.  Change pipe_specops to use the default vop_kqfilter to
    accommodate fifoops that don't specify the method (i.e. all in-tree).

    Based on a patch by Jan Kokemüller.

    PR:             225934
    Reviewed by:    kib, markj (both pre-KASSERT)
    Differential Revision:  https://reviews.freebsd.org/D32271

 sys/fs/fifofs/fifo_vnops.c          |  1 -
 sys/kern/sys_pipe.c                 |  4 +++
 sys/kern/vfs_subr.c                 |  3 ++
 tests/sys/kqueue/libkqueue/common.h |  2 ++
 tests/sys/kqueue/libkqueue/vnode.c  | 59 +++++++++++++++++++++++++++++++++++++
 5 files changed, 68 insertions(+), 1 deletion(-)

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