ANDROID: sdcardfs: Call lower fs's revalidate
We should be calling the lower filesystem's revalidate
inside of sdcardfs's revalidate, as wrapfs does.
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Bug: 35766959
Change-Id: I939d1c4192fafc1e21678aeab43fe3d588b8e2f4
diff --git a/fs/sdcardfs/dentry.c b/fs/sdcardfs/dentry.c
index afd9771..ae2b4ba 100644
--- a/fs/sdcardfs/dentry.c
+++ b/fs/sdcardfs/dentry.c
@@ -60,6 +60,14 @@ static int sdcardfs_d_revalidate(struct dentry *dentry, unsigned int flags)
lower_dentry = lower_path.dentry;
lower_cur_parent_dentry = dget_parent(lower_dentry);
+ if ((lower_dentry->d_flags & DCACHE_OP_REVALIDATE)) {
+ err = lower_dentry->d_op->d_revalidate(lower_dentry, flags);
+ if (err == 0) {
+ d_drop(dentry);
+ goto out;
+ }
+ }
+
spin_lock(&lower_dentry->d_lock);
if (d_unhashed(lower_dentry)) {
spin_unlock(&lower_dentry->d_lock);