Even when an underlying filesystem had a getxattr op it may not support
xattrs. In this case vfs_listxattr will return EOPNOTSUPP. Handle
this return when copying up attributes.
Signed-off-by: Andy Whitcroft <apw@xxxxxxxxxxxxx>
---
fs/overlayfs/overlayfs.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/fs/overlayfs/overlayfs.c b/fs/overlayfs/overlayfs.c
index 6b8a7b9..1148b8c 100644
--- a/fs/overlayfs/overlayfs.c
+++ b/fs/overlayfs/overlayfs.c
@@ -692,8 +692,11 @@ static int ovl_copy_up_xattr(struct dentry *old, struct dentry *new)
return 0;
list_size = vfs_listxattr(old, NULL, 0);
- if (list_size <= 0)
+ if (list_size <= 0) {
+ if (list_size == -EOPNOTSUPP)
+ return 0;
return list_size;
+ }
buf = kzalloc(list_size, GFP_KERNEL);
if (!buf)
--
1.7.0.4
--
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