fs: fat: set start cluster for root directory
When iterating over a child directory we set itr->start_clust.
Do the same when over the root directory.
When looking for deleted directory entries or existing short names we will
have to iterate over directories a second and third time. With this patch
we do not need any special logic for the root directory.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/fs/fat/fat.c b/fs/fat/fat.c
index 674236d..5a418cf 100644
--- a/fs/fat/fat.c
+++ b/fs/fat/fat.c
@@ -734,7 +734,7 @@
return -ENXIO;
itr->fsdata = fsdata;
- itr->start_clust = 0;
+ itr->start_clust = fsdata->root_cluster;
itr->clust = fsdata->root_cluster;
itr->next_clust = fsdata->root_cluster;
itr->dent = NULL;
@@ -778,6 +778,7 @@
} else {
itr->clust = parent->fsdata->root_cluster;
itr->next_clust = parent->fsdata->root_cluster;
+ itr->start_clust = parent->fsdata->root_cluster;
itr->is_root = 1;
}
itr->dent = NULL;
@@ -1067,6 +1068,7 @@
/* point back to itself */
itr->clust = itr->fsdata->root_cluster;
itr->next_clust = itr->fsdata->root_cluster;
+ itr->start_clust = itr->fsdata->root_cluster;
itr->dent = NULL;
itr->remaining = 0;
itr->last_cluster = 0;