Btrfs: Avoid delayed reference update looping
btrfs_split_leaf and btrfs_del_items can end up in a loop where one is constantly spliting a given leaf and the other is constantly merging it back with the adjacent nodes. There is a better fix for this, but in the interest of something small, this patch just changes btrfs_del_items back to balancing less often. Signed-off-by: Chris Mason <chris.mason@oracle.com>
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@ -1040,9 +1040,6 @@ static noinline int balance_level(struct btrfs_trans_handle *trans,
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BTRFS_NODEPTRS_PER_BLOCK(root) / 4)
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return 0;
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if (btrfs_header_nritems(mid) > 2)
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return 0;
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if (btrfs_header_nritems(mid) < 2)
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err_on_enospc = 1;
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@ -3796,7 +3793,7 @@ int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root,
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}
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/* delete the leaf if it is mostly empty */
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if (used < BTRFS_LEAF_DATA_SIZE(root) / 2) {
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if (used < BTRFS_LEAF_DATA_SIZE(root) / 3) {
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/* push_leaf_left fixes the path.
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* make sure the path still points to our leaf
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* for possible call to del_ptr below
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