From: Konstantin Komarov <almaz.alexandrovich@xxxxxxxxxxxxxxxxxxxx>
[ Upstream commit 1918c10e137eae266b8eb0ab1cc14421dcb0e3e2 ]
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
fs/ntfs3/record.c | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
diff --git a/fs/ntfs3/record.c b/fs/ntfs3/record.c
index ba336c7280b8..ab03c373cec6 100644
--- a/fs/ntfs3/record.c
+++ b/fs/ntfs3/record.c
@@ -491,8 +491,20 @@ bool mi_remove_attr(struct ntfs_inode *ni, struct mft_inode *mi,
return false;
if (ni && is_attr_indexed(attr)) {
- le16_add_cpu(&ni->mi.mrec->hard_links, -1);
- ni->mi.dirty = true;
+ u16 links = le16_to_cpu(ni->mi.mrec->hard_links);
+ struct ATTR_FILE_NAME *fname =
+ attr->type != ATTR_NAME ?
+ NULL :
+ resident_data_ex(attr,
+ SIZEOF_ATTRIBUTE_FILENAME);
+ if (fname && fname->type == FILE_NAME_DOS) {
+ /* Do not decrease links count deleting DOS name. */
+ } else if (!links) {
+ /* minor error. Not critical. */
+ } else {
+ ni->mi.mrec->hard_links = cpu_to_le16(links - 1);
+ ni->mi.dirty = true;
+ }
}
used -= asize;
--
2.43.0
