diff options
| author | Konstantin Komarov <almaz.alexandrovich@paragon-software.com> | 2023-11-24 11:26:31 +0300 |
|---|---|---|
| committer | Konstantin Komarov <almaz.alexandrovich@paragon-software.com> | 2023-12-06 17:46:08 +0300 |
| commit | 1918c10e137eae266b8eb0ab1cc14421dcb0e3e2 (patch) | |
| tree | 35703fe0601ed18b0d589c06195f58c49f693f44 /fs/ntfs3/record.c | |
| parent | 6a799c928b78b14999b7705c4cca0f88e297fe96 (diff) | |
| download | linux-1918c10e137eae266b8eb0ab1cc14421dcb0e3e2.tar.xz | |
fs/ntfs3: Correct hard links updating when dealing with DOS names
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Diffstat (limited to 'fs/ntfs3/record.c')
| -rw-r--r-- | fs/ntfs3/record.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/fs/ntfs3/record.c b/fs/ntfs3/record.c index 53629b1f65e9..7b6423584eae 100644 --- a/fs/ntfs3/record.c +++ b/fs/ntfs3/record.c @@ -535,8 +535,20 @@ 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; |