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[RFC,v3,13/16] ceph: make d_revalidate call fscrypt revalidator for encrypted dentries

Message ID 20200914191707.380444-14-jlayton@kernel.org
State New
Headers show
Series ceph+fscrypt: context, filename and symlink support | expand

Commit Message

Jeff Layton Sept. 14, 2020, 7:17 p.m. UTC
If we have a dentry which represents a no-key name, then we need to test
whether the parent directory's encryption key has since been added.  Do
that before we test anything else about the dentry.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
 fs/ceph/dir.c | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index b1e04d7d4b68..b6e5d751024d 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -1689,6 +1689,10 @@  static int ceph_d_revalidate(struct dentry *dentry, unsigned int flags)
 	dout("d_revalidate %p '%pd' inode %p offset 0x%llx\n", dentry,
 	     dentry, inode, ceph_dentry(dentry)->offset);
 
+	valid = fscrypt_d_revalidate(dentry, flags);
+	if (valid <= 0)
+		return valid;
+
 	mdsc = ceph_sb_to_client(dir->i_sb)->mdsc;
 
 	/* always trust cached snapped dentries, snapdir dentry */