git: f2e6f2444098 - stable/14 - p9fs: Call VN_LOCK_ASHARE on new vnodes

The branch stable/14 has been updated by arrowd:

URL: https://cgit.FreeBSD.org/src/commit/?id=f2e6f24440984dce314a8eb3f9009cef3aae62b8

commit f2e6f24440984dce314a8eb3f9009cef3aae62b8
Author:     Mark Johnston <markj@FreeBSD.org>
AuthorDate: 2025-06-13 19:08:09 +0000
Commit:     Gleb Popov <arrowd@FreeBSD.org>
CommitDate: 2025-07-04 13:28:07 +0000

    p9fs: Call VN_LOCK_ASHARE on new vnodes
    
    We set MNTK_LOOKUP_SHARED on p9fs mounts, but disable shared locking of
    vnodes (i.e., LK_SHARED requests are automatically translated to
    LK_EXCLUSIVE.
    
    Reviewed by:    kib
    Sponsored by:   Klara, Inc.
    Differential Revision:  https://reviews.freebsd.org/D50759
    
    (cherry picked from commit 5defdd5342c392880e3917ba0873fb49ddafc4c6)
---
 sys/fs/p9fs/p9fs_vfsops.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sys/fs/p9fs/p9fs_vfsops.c b/sys/fs/p9fs/p9fs_vfsops.c
index f674c866ce9d..3451bc052187 100644
--- a/sys/fs/p9fs/p9fs_vfsops.c
+++ b/sys/fs/p9fs/p9fs_vfsops.c
@@ -345,6 +345,8 @@ p9fs_vget_common(struct mount *mp, struct p9fs_node *np, int flags,
 	P9FS_SET_LINKS(inode);
 
 	lockmgr(vp->v_vnlock, LK_EXCLUSIVE, NULL);
+	if (vp->v_type != VFIFO)
+		VN_LOCK_ASHARE(vp);
 	error = insmntque(vp, mp);
 	if (error != 0) {
 		/*