diff options
| author | Richard Weinberger <richard@nod.at> | 2022-12-07 11:43:08 +0300 |
|---|---|---|
| committer | Chuck Lever <chuck.lever@oracle.com> | 2023-02-20 17:20:08 +0300 |
| commit | e1f19857f94be09f9526f180e64f20138bd4e394 (patch) | |
| tree | 00fcaade62f6251c0a2324b4e4489459fa6a9848 /fs/nfsd/vfs.c | |
| parent | 50f5fdaea9cd6941e51ea6e07d8c15265917bb86 (diff) | |
| download | linux-e1f19857f94be09f9526f180e64f20138bd4e394.tar.xz | |
fs: namei: Allow follow_down() to uncover auto mounts
This function is only used by NFSD to cross mount points.
If a mount point is of type auto mount, follow_down() will
not uncover it. Add LOOKUP_AUTOMOUNT to the lookup flags
to have ->d_automount() called when NFSD walks down the
mount tree.
Signed-off-by: Richard Weinberger <richard@nod.at>
Reviewed-by: Ian Kent <raven@themaw.net>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'fs/nfsd/vfs.c')
| -rw-r--r-- | fs/nfsd/vfs.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index 780856561bbb..21d5209f6e04 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -126,9 +126,13 @@ nfsd_cross_mnt(struct svc_rqst *rqstp, struct dentry **dpp, struct dentry *dentry = *dpp; struct path path = {.mnt = mntget(exp->ex_path.mnt), .dentry = dget(dentry)}; + unsigned int follow_flags = 0; int err = 0; - err = follow_down(&path); + if (exp->ex_flags & NFSEXP_CROSSMOUNT) + follow_flags = LOOKUP_AUTOMOUNT; + + err = follow_down(&path, follow_flags); if (err < 0) goto out; if (path.mnt == exp->ex_path.mnt && path.dentry == dentry && |