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fdescfs: improve linrdlnk mount option

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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
This commit is contained in:
Konstantin Belousov 2023-06-22 16:30:59 +03:00
parent eb550615ef
commit 3bffa22623
1 changed files with 5 additions and 3 deletions
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8
sys/fs/fdescfs/fdesc_vnops.c
View file

@ -190,8 +190,9 @@ fdesc_allocvp(fdntype ftype, unsigned fd_fd, int ix, struct mount *mp,
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);