From c11faf32599fee59f33896c8d59f9b3c17ca76fc Mon Sep 17 00:00:00 2001
From: Chengguang Xu <cgxu519@mykernel.net>
Date: Wed, 24 Jun 2020 18:20:11 +0800
Subject: [PATCH] ovl: fix incorrect extent info in metacopy case
In metacopy case, we should use ovl_inode_realdata() instead of
ovl_inode_real() to get real inode which has data, so that
we can get correct information of extentes in ->fiemap operation.
Signed-off-by: Chengguang Xu <cgxu519@mykernel.net>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
---
fs/overlayfs/inode.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index b584dca845baa2..1688ae7e343805 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -476,7 +476,7 @@ static int ovl_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
u64 start, u64 len)
{
int err;
- struct inode *realinode = ovl_inode_real(inode);
+ struct inode *realinode = ovl_inode_realdata(inode);
const struct cred *old_cred;
if (!realinode->i_op->fiemap)
--
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