Date: Tue, 3 Aug 2021 09:52:45 GMT 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: b5eaf005273b - stable/13 - nullfs: provide custom null_advlock bypass Message-ID: <202108030952.1739qjhk081304@gitrepo.freebsd.org>
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The branch stable/13 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=b5eaf005273b5e23db8e83e08b0bd32bbbbe1d53 commit b5eaf005273b5e23db8e83e08b0bd32bbbbe1d53 Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2021-07-17 22:56:47 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2021-08-03 09:52:35 +0000 nullfs: provide custom null_advlock bypass (cherry picked from commit 161e9a97363d17caf0b47983b28a37f3f59f9978) --- sys/fs/nullfs/null_vnops.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/sys/fs/nullfs/null_vnops.c b/sys/fs/nullfs/null_vnops.c index 29be2a34614c..4dfc5efaf9ed 100644 --- a/sys/fs/nullfs/null_vnops.c +++ b/sys/fs/nullfs/null_vnops.c @@ -980,6 +980,28 @@ null_read_pgcache(struct vop_read_pgcache_args *ap) return (error); } +static int +null_advlock(struct vop_advlock_args *ap) +{ + struct vnode *lvp, *vp; + struct null_node *xp; + int error; + + vp = ap->a_vp; + VI_LOCK(vp); + xp = VTONULL(vp); + if (xp == NULL) { + VI_UNLOCK(vp); + return (EBADF); + } + lvp = xp->null_lowervp; + vref(lvp); + VI_UNLOCK(vp); + error = VOP_ADVLOCK(lvp, ap->a_id, ap->a_op, ap->a_fl, ap->a_flags); + vrele(lvp); + return (error); +} + /* * Avoid standard bypass, since lower dvp and vp could be no longer * valid after vput(). @@ -1035,6 +1057,7 @@ struct vop_vector null_vnodeops = { .vop_bypass = null_bypass, .vop_access = null_access, .vop_accessx = null_accessx, + .vop_advlock = null_advlock, .vop_advlockpurge = vop_stdadvlockpurge, .vop_bmap = VOP_EOPNOTSUPP, .vop_stat = null_stat,
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