git: d10640804e74 - stable/14 - nfs client: switch nfs_advlock() to use exclusive vnode lock

The branch stable/14 has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=d10640804e74b84ba06102a1a399a34117f4cf41

commit d10640804e74b84ba06102a1a399a34117f4cf41
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2025-08-27 16:57:06 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2025-09-03 02:05:20 +0000

    nfs client: switch nfs_advlock() to use exclusive vnode lock
    
    (cherry picked from commit fe53e046cd9ce9c95a118ac0374e94336f16a37f)
---
 sys/fs/nfsclient/nfs_clvnops.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/sys/fs/nfsclient/nfs_clvnops.c b/sys/fs/nfsclient/nfs_clvnops.c
index 7f751d81d5e5..013ab2445a83 100644
--- a/sys/fs/nfsclient/nfs_clvnops.c
+++ b/sys/fs/nfsclient/nfs_clvnops.c
@@ -3253,7 +3253,7 @@ nfs_advlock(struct vop_advlock_args *ap)
 	u_quad_t size;
 	struct nfsmount *nmp;
 
-	error = NFSVOPLOCK(vp, LK_SHARED);
+	error = NFSVOPLOCK(vp, LK_EXCLUSIVE);
 	if (error != 0)
 		return (EBADF);
 	nmp = VFSTONFS(vp->v_mount);
@@ -3290,11 +3290,6 @@ nfs_advlock(struct vop_advlock_args *ap)
 			cred = p->p_ucred;
 		else
 			cred = td->td_ucred;
-		NFSVOPLOCK(vp, LK_UPGRADE | LK_RETRY);
-		if (VN_IS_DOOMED(vp)) {
-			error = EBADF;
-			goto out;
-		}
 
 		/*
 		 * If this is unlocking a write locked region, flush and