Date: Tue, 11 Aug 2026 11:05:57 +0000 From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: e84f15568e42 - stable/15 - autofs_lookup(): busy the mount point around autofs_trigger() Message-ID: <6a7b0215.3f5a2.27ed150@gitrepo.freebsd.org>
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The branch stable/15 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=e84f15568e42027d3452a2813200a3e1449a135a commit e84f15568e42027d3452a2813200a3e1449a135a Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2026-08-03 17:41:46 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2026-08-11 11:00:02 +0000 autofs_lookup(): busy the mount point around autofs_trigger() PR: 294361 (cherry picked from commit b95a859483f1ac0671bde55c0a2fc46f4db5ba4b) --- sys/fs/autofs/autofs_vnops.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/sys/fs/autofs/autofs_vnops.c b/sys/fs/autofs/autofs_vnops.c index e8e47f20166a..5505435c423c 100644 --- a/sys/fs/autofs/autofs_vnops.c +++ b/sys/fs/autofs/autofs_vnops.c @@ -136,16 +136,22 @@ autofs_trigger_vn(struct vnode *vp, const char *path, int pathlen, struct vnode **newvp) { struct autofs_node *anp; + struct mount *mp; int error, lock_flags; anp = vp->v_data; /* - * Release the vnode lock, so that other operations, in partcular - * mounting a filesystem on top of it, can proceed. Increase use - * count, to prevent the vnode from being deallocated and to prevent - * filesystem from being unmounted. + * Release the vnode lock, so that other operations, in + * particular mounting a filesystem on top of it, can proceed. + * Increase use count and busy the mount, to prevent the vnode + * from being deallocated and to prevent filesystem from being + * unmounted. */ + mp = vp->v_mount; + error = vfs_busy(mp, MBF_NOWAIT); + if (error != 0) + return (error); lock_flags = VOP_ISLOCKED(vp); vref(vp); VOP_UNLOCK(vp); @@ -165,6 +171,7 @@ mounted: sx_xunlock(&autofs_softc->sc_lock); vn_lock(vp, lock_flags | LK_RETRY); vunref(vp); + vfs_unbusy(mp); if (VN_IS_DOOMED(vp)) { AUTOFS_DEBUG("VIRF_DOOMED"); return (ENOENT);home | help
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