Btrfs: Stop using radix trees for the block group cache
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
index 5b7dbca..1b2f9e0 100644
--- a/fs/btrfs/extent_map.c
+++ b/fs/btrfs/extent_map.c
@@ -574,7 +574,7 @@
return set;
search_again:
- if (start >= end)
+ if (start > end)
goto out;
write_unlock_irqrestore(&tree->lock, flags);
if (mask & __GFP_WAIT)
@@ -819,6 +819,21 @@
}
EXPORT_SYMBOL(set_extent_dirty);
+int set_extent_bits(struct extent_map_tree *tree, u64 start, u64 end,
+ int bits, gfp_t mask)
+{
+ return set_extent_bit(tree, start, end, bits, 0, NULL,
+ mask);
+}
+EXPORT_SYMBOL(set_extent_bits);
+
+int clear_extent_bits(struct extent_map_tree *tree, u64 start, u64 end,
+ int bits, gfp_t mask)
+{
+ return clear_extent_bit(tree, start, end, bits, 0, 0, mask);
+}
+EXPORT_SYMBOL(clear_extent_bits);
+
int set_extent_delalloc(struct extent_map_tree *tree, u64 start, u64 end,
gfp_t mask)
{
@@ -1138,7 +1153,6 @@
out:
write_unlock_irq(&tree->lock);
return ret;
-
}
int get_state_private(struct extent_map_tree *tree, u64 start, u64 *private)