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FreeBSD: stop passing LK_INTERLOCK to VOP_LOCK 

There is an ongoing effort to eliminate this feature.

Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Mateusz Guzik <mjguzik@gmail.com>
Closes #13908
This commit is contained in:
Mateusz Guzik 2022-09-20 02:17:27 +02:00 committed by Tony Hutter
parent 55816c64da
commit 2c8e3e4b28
1 changed files with 2 additions and 1 deletions
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3
module/os/freebsd/zfs/zfs_ctldir.c
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@ -976,12 +976,13 @@ zfsctl_snapdir_lookup(struct vop_lookup_args *ap)
*/ */
VI_LOCK(*vpp); VI_LOCK(*vpp);
if (((*vpp)->v_iflag & VI_MOUNT) == 0) { if (((*vpp)->v_iflag & VI_MOUNT) == 0) {
VI_UNLOCK(*vpp);
/* /*
* Upgrade to exclusive lock in order to: * Upgrade to exclusive lock in order to:
* - avoid race conditions * - avoid race conditions
* - satisfy the contract of mount_snapshot() * - satisfy the contract of mount_snapshot()
*/ */
err = VOP_LOCK(*vpp, LK_TRYUPGRADE | LK_INTERLOCK); err = VOP_LOCK(*vpp, LK_TRYUPGRADE);
if (err == 0) if (err == 0)
break; break;
} else { } else {