diff options
| author | Jan Kara <jack@suse.cz> | 2023-01-03 09:56:56 +0100 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2023-01-09 10:39:53 +0100 |
| commit | fc8033a34a3ca7d23353e645e6dde5d364ac5f12 (patch) | |
| tree | f17c77c027e1a97b04e07d6167d6a707a2b9b5ba /fs/udf/inode.c | |
| parent | 256fe4162f8b5a1625b8603ca5f7ff79725bfb47 (diff) | |
udf: Preserve link count of system files
System files in UDF filesystem have link count 0. To not confuse VFS we
fudge the link count to be 1 when reading such inodes however we forget
to restore the link count of 0 when writing such inodes. Fix that.
CC: stable@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/udf/inode.c')
| -rw-r--r-- | fs/udf/inode.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/udf/inode.c b/fs/udf/inode.c index 31965c3798f2..9ee269d3d546 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -1301,6 +1301,7 @@ reread: ret = -EIO; goto out; } + iinfo->i_hidden = hidden_inode; iinfo->i_unique = 0; iinfo->i_lenEAttr = 0; iinfo->i_lenExtents = 0; @@ -1636,8 +1637,12 @@ static int udf_update_inode(struct inode *inode, int do_sync) if (S_ISDIR(inode->i_mode) && inode->i_nlink > 0) fe->fileLinkCount = cpu_to_le16(inode->i_nlink - 1); - else - fe->fileLinkCount = cpu_to_le16(inode->i_nlink); + else { + if (iinfo->i_hidden) + fe->fileLinkCount = cpu_to_le16(0); + else + fe->fileLinkCount = cpu_to_le16(inode->i_nlink); + } fe->informationLength = cpu_to_le64(inode->i_size); |