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/disk-io.c b/fs/btrfs/disk-io.c
index 4296839..ef6d76f 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -666,7 +666,8 @@
brelse(buf);
}
-void btrfs_btree_balance_dirty(struct btrfs_root *root)
+void btrfs_btree_balance_dirty(struct btrfs_root *root, unsigned long nr)
{
- balance_dirty_pages_ratelimited(root->fs_info->btree_inode->i_mapping);
+ balance_dirty_pages_ratelimited_nr(
+ root->fs_info->btree_inode->i_mapping, nr);
}