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| author | Jan Kara <jack@suse.cz> | 2014-09-04 11:47:51 +0200 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2014-09-04 11:47:51 +0200 |
| commit | 8a70ee3307908c46f952df91be72a18d5f5ad0a3 (patch) | |
| tree | bf5e1b58e99f4b3090d3811aec3411a728df5f40 /fs/udf | |
| parent | 44bf091f508913c1c35e70ea96430454c95c78f1 (diff) | |
| download | linux-8a70ee3307908c46f952df91be72a18d5f5ad0a3.tar.gz linux-8a70ee3307908c46f952df91be72a18d5f5ad0a3.tar.bz2 linux-8a70ee3307908c46f952df91be72a18d5f5ad0a3.zip | |
udf: Avoid dir link count to go negative
If we are writing back inode of unlinked directory, its link count ends
up being (u16)-1. Although the inode is deleted, udf_iget() can load the
inode when NFS uses stale file handle and get confused.
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/udf')
| -rw-r--r-- | fs/udf/inode.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/udf/inode.c b/fs/udf/inode.c index 236cd48184c2..e86f9b67aa16 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -1664,7 +1664,7 @@ static int udf_update_inode(struct inode *inode, int do_sync) FE_PERM_U_DELETE | FE_PERM_U_CHATTR)); fe->permissions = cpu_to_le32(udfperms); - if (S_ISDIR(inode->i_mode)) + 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); |