[Bug 267628] growfs deadlocks if output is redirected to the filesystem being grown

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From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 29 Dec 2022 20:56:42 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=267628

--- Comment #4 from commit-hook@FreeBSD.org ---
A commit in branch main references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=701b36961cbd2084c36eb828402d0ef89211d929

commit 701b36961cbd2084c36eb828402d0ef89211d929
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2022-12-28 18:14:52 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2022-12-29 20:55:39 +0000

    ufs/suspend: deny suspension if the calling process has a file from mp
opened for write

    Also deny suspension if we cannot check the above condition race-free
    because there is more than one thread in the calling process.

    PR:     267628, 267630
    Reviewed by:    mckusick
    Sponsored by:   The FreeBSD Foundation
    MFC after:      1 week
    Differential revision:  https://reviews.freebsd.org/D37896

 sys/ufs/ffs/ffs_suspend.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

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