Hi
When first extent item in a block group isn't at beginning of that
block group, blocks in the hole (at beginning of a block group) is
free.
Regards
YZ
diff -r 9cb5f0f5c713 extent-tree.c
--- a/extent-tree.c Thu Aug 30 12:16:51 2007 -0400
+++ b/extent-tree.c Tue Sep 11 22:59:56 2007 +0800
@@ -102,15 +102,14 @@ static int cache_block_group(struct btrf
}
if (btrfs_key_type(&key) == BTRFS_EXTENT_ITEM_KEY) {
if (!found) {
- last = key.objectid + key.offset;
+ last = block_group->key.objectid;
found = 1;
- } else {
- hole_size = key.objectid - last;
- for (i = 0; i < hole_size; i++) {
- set_radix_bit(extent_radix, last + i);
- }
- last = key.objectid + key.offset;
- }
+ }
+ hole_size = key.objectid - last;
+ for (i = 0; i < hole_size; i++) {
+ set_radix_bit(extent_radix, last + i);
+ }
+ last = key.objectid + key.offset;
}
path->slots[0]++;
}
diff -r 9cb5f0f5c713 extent-tree.c
--- a/extent-tree.c Thu Aug 30 12:16:51 2007 -0400
+++ b/extent-tree.c Tue Sep 11 22:59:56 2007 +0800
@@ -102,15 +102,14 @@ static int cache_block_group(struct btrf
}
if (btrfs_key_type(&key) == BTRFS_EXTENT_ITEM_KEY) {
if (!found) {
- last = key.objectid + key.offset;
+ last = block_group->key.objectid;
found = 1;
- } else {
- hole_size = key.objectid - last;
- for (i = 0; i < hole_size; i++) {
- set_radix_bit(extent_radix, last + i);
- }
- last = key.objectid + key.offset;
- }
+ }
+ hole_size = key.objectid - last;
+ for (i = 0; i < hole_size; i++) {
+ set_radix_bit(extent_radix, last + i);
+ }
+ last = key.objectid + key.offset;
}
path->slots[0]++;
}
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