Upper dentry inode does not have data. So return lower dentry if upper
is only a metadata copy.
Signed-off-by: Vivek Goyal <vgoyal@xxxxxxxxxx>
---
fs/overlayfs/super.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index 84b8f6dc0f61..5cb19781763d 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -101,14 +101,19 @@ static struct dentry *ovl_d_real(struct dentry *dentry,
real = ovl_dentry_upper(dentry);
if (real && (!inode || inode == d_inode(real))) {
+ bool metacopy = !ovl_has_upperdata(dentry);
if (!inode) {
err = ovl_check_append_only(d_inode(real), open_flags);
if (err)
return ERR_PTR(err);
+
+ if (unlikely(metacopy))
+ goto lower;
}
return real;
}
+lower:
real = ovl_dentry_lower(dentry);
if (!real)
goto bug;
--
2.13.6
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