[RFC PATCH v4 15/17] ceph: make d_revalidate call fscrypt revalidator for encrypted dentries

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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@xxxxxxxxxx>
---
 fs/ceph/dir.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 236c381ab6bd..cb7ff91a243a 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -1726,6 +1726,10 @@ 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 */
-- 
2.29.2




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