[Bug 254210] jail: nullfs: deleted files does not free up space

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=254210

--- Comment #13 from commit-hook@FreeBSD.org ---
A commit in branch main references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=1a0cb938f7b461edc40316cb44a80438df674174

commit 1a0cb938f7b461edc40316cb44a80438df674174
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2025-02-04 00:23:05 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2025-02-04 22:19:50 +0000

    unlink, rmdir: call notify_upper from VOP pre method instead of syscall

    Suppose that there are two or more nullfs mounts over some fs, and
    suppose the we unlink a file on one of the nullfs mount.
    This way notify_upper get called from the lower vnode as well, allowing
    the other nullfs mounts to note that and drop their caches for the
    unlinked vnode.

    PR:     254210
    Reviewed by:    olce
    Tested by:      pho
    Sponsored by:   The FreeBSD Foundation
    MFC after:      1 week
    Differential revision:  https://reviews.freebsd.org/D48825

 sys/kern/vfs_subr.c     | 2 ++
 sys/kern/vfs_syscalls.c | 2 --
 2 files changed, 2 insertions(+), 2 deletions(-)

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