fs: fat: first dentry of long name in FAT iterator
A long name is split over multiple directory entries. When deleting a file
with a long name we need the first directory entry to be able to delete the
whole chain.
Add the necessary fields to the FAT iterator:
* cluster of first directory entry
* address of first directory entry
* remaining entries in cluster
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/fs/fat/fat.c b/fs/fat/fat.c
index 5a418cf..47344bb 100644
--- a/fs/fat/fat.c
+++ b/fs/fat/fat.c
@@ -701,6 +701,18 @@
*/
dir_entry *dent;
/**
+ * @dent_rem: remaining entries after long name start
+ */
+ int dent_rem;
+ /**
+ * @dent_clust: cluster of long name start
+ */
+ unsigned int dent_clust;
+ /**
+ * @dent_start: first directory entry for long name
+ */
+ dir_entry *dent_start;
+ /**
* @l_name: long name of current directory entry
*/
char l_name[VFAT_MAXLEN_BYTES];
@@ -966,9 +978,13 @@
while (1) {
dent = next_dent(itr);
- if (!dent)
+ if (!dent) {
+ itr->dent_start = NULL;
return 0;
-
+ }
+ itr->dent_rem = itr->remaining;
+ itr->dent_start = itr->dent;
+ itr->dent_clust = itr->clust;
if (dent->name[0] == DELETED_FLAG)
continue;