udf: Set i_generation field
Currently UDF doesn't initialize i_generation in any way and thus NFS
can easily get reallocated inodes from stale file handles. Luckily UDF
already has a unique object identifier associated with each inode -
i_unique. Use that for initialization of i_generation.
Signed-off-by: Jan Kara <jack@suse.cz>
diff --git a/fs/udf/ialloc.c b/fs/udf/ialloc.c
index 6eaf5ed..647370d 100644
--- a/fs/udf/ialloc.c
+++ b/fs/udf/ialloc.c
@@ -95,6 +95,7 @@
lvidiu = udf_sb_lvidiu(sb);
if (lvidiu) {
iinfo->i_unique = lvid_get_unique_id(sb);
+ inode->i_generation = iinfo->i_unique;
mutex_lock(&sbi->s_alloc_mutex);
if (S_ISDIR(mode))
le32_add_cpu(&lvidiu->numDirs, 1);