[PATCH 31/34] expfs: handle idmapped mounts
From: Christian Brauner <hidden>
Date: 2020-10-29 00:37:31
Also in:
linux-ext4, linux-fsdevel, linux-integrity, linux-security-module, linux-unionfs, selinux
Subsystem:
filesystems (vfs and infrastructure), filesystems [exportfs], the rest · Maintainers:
Alexander Viro, Christian Brauner, Chuck Lever, Jeff Layton, Linus Torvalds
In follow-up patches we will port overlayfs to support idmapped mounts and since it makes use of expfs port expfs to handle idmapped mounts by using one of our newly introduced idmapped mount aware lookup helpers. Signed-off-by: Christian Brauner <redacted> --- fs/exportfs/expfs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c
index 2dd55b172d57..8066e8bdc912 100644
--- a/fs/exportfs/expfs.c
+++ b/fs/exportfs/expfs.c@@ -145,7 +145,7 @@ static struct dentry *reconnect_one(struct vfsmount *mnt, if (err) goto out_err; dprintk("%s: found name: %s\n", __func__, nbuf); - tmp = lookup_one_len_unlocked(nbuf, parent, strlen(nbuf)); + tmp = lookup_one_len_mapped_unlocked(nbuf, parent, strlen(nbuf), mnt_user_ns(mnt)); if (IS_ERR(tmp)) { dprintk("%s: lookup failed: %d\n", __func__, PTR_ERR(tmp)); err = PTR_ERR(tmp);
@@ -525,7 +525,7 @@ struct dentry *exportfs_decode_fh(struct vfsmount *mnt, struct fid *fid, } inode_lock(target_dir->d_inode); - nresult = lookup_one_len(nbuf, target_dir, strlen(nbuf)); + nresult = lookup_one_len_mapped(nbuf, target_dir, strlen(nbuf), mnt_user_ns(mnt)); if (!IS_ERR(nresult)) { if (unlikely(nresult->d_inode != result->d_inode)) { dput(nresult);
--
2.29.0