Btrfs: Use balance_dirty_pages_nr on btree blocks
btrfs_btree_balance_dirty is changed to pass the number of pages dirtied
for more accurate dirty throttling. This lets the VM make better decisions
about when to force some writeback.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 9151850..fe772f9 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -1275,6 +1275,7 @@
set_buffer_checked(buf);
set_buffer_defrag(buf);
set_radix_bit(&trans->transaction->dirty_pages, buf->b_page->index);
+ trans->blocks_used++;
return buf;
}