git: 3bffa2262328 - main - fdescfs: improve linrdlnk mount option

The branch main has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=3bffa2262328e4ff1737516f176107f607e7bc76

commit 3bffa2262328e4ff1737516f176107f607e7bc76
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2023-06-22 13:30:59 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2023-06-27 10:43:17 +0000

    fdescfs: improve linrdlnk mount option
    
    Instead of using VV_READLINK vnode flag and checking it in one place,
    just assign VLNK type to the Fdesc vnodes for linrdlnk mounts.  Then all
    places where symlinks needs to be followed, e.g. lookup(), are handled.
    
    PR:     272127
    Reported by:    Peter Eriksson <pen@lysator.liu.se>
    Reviewed by:    markj
    Tested by:      pho
    Sponsored by:   The FreeBSD Foundation
    MFC after:      1 week
    Differential revision:  https://reviews.freebsd.org/D40700
---
 sys/fs/fdescfs/fdesc_vnops.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/sys/fs/fdescfs/fdesc_vnops.c b/sys/fs/fdescfs/fdesc_vnops.c
index 1c4b6d0c6cdb..3f6fca16c715 100644
--- a/sys/fs/fdescfs/fdesc_vnops.c
+++ b/sys/fs/fdescfs/fdesc_vnops.c
@@ -190,8 +190,9 @@ loop:
 	fd->fd_type = ftype;
 	fd->fd_fd = fd_fd;
 	fd->fd_ix = ix;
-	if (ftype == Fdesc && fmp->flags & FMNT_LINRDLNKF)
-		vp->v_vflag |= VV_READLINK;
+	/* Cannot set v_type to VCHR */
+	if (ftype == Fdesc && (fmp->flags & FMNT_LINRDLNKF) != 0)
+		vp->v_type = VLNK;
 	error = insmntque1(vp, mp);
 	if (error != 0) {
 		vgone(vp);
@@ -457,7 +458,8 @@ fdesc_getattr(struct vop_getattr_args *ap)
 		break;
 
 	case Fdesc:
-		vap->va_type = (vp->v_vflag & VV_READLINK) == 0 ? VCHR : VLNK;
+		vap->va_type = (VFSTOFDESC(vp->v_mount)->flags &
+		    FMNT_LINRDLNKF) == 0 ? VCHR : VLNK;
 		vap->va_nlink = 1;
 		vap->va_size = 0;
 		vap->va_rdev = makedev(0, vap->va_fileid);