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Diffstat (limited to 'fs/btrfs/delayed-ref.c')
-rw-r--r--fs/btrfs/delayed-ref.c25
1 files changed, 23 insertions, 2 deletions
diff --git a/fs/btrfs/delayed-ref.c b/fs/btrfs/delayed-ref.c
index cca7e85e32dd..4176df149d04 100644
--- a/fs/btrfs/delayed-ref.c
+++ b/fs/btrfs/delayed-ref.c
@@ -84,6 +84,17 @@ void btrfs_delayed_refs_rsv_release(struct btrfs_fs_info *fs_info, int nr)
u64 num_bytes = btrfs_calc_insert_metadata_size(fs_info, nr);
u64 released = 0;
+ /*
+ * We have to check the mount option here because we could be enabling
+ * the free space tree for the first time and don't have the compat_ro
+ * option set yet.
+ *
+ * We need extra reservations if we have the free space tree because
+ * we'll have to modify that tree as well.
+ */
+ if (btrfs_test_opt(fs_info, FREE_SPACE_TREE))
+ num_bytes *= 2;
+
released = btrfs_block_rsv_release(fs_info, block_rsv, num_bytes, NULL);
if (released)
trace_btrfs_space_reservation(fs_info, "delayed_refs_rsv",
@@ -108,6 +119,17 @@ void btrfs_update_delayed_refs_rsv(struct btrfs_trans_handle *trans)
num_bytes = btrfs_calc_insert_metadata_size(fs_info,
trans->delayed_ref_updates);
+ /*
+ * We have to check the mount option here because we could be enabling
+ * the free space tree for the first time and don't have the compat_ro
+ * option set yet.
+ *
+ * We need extra reservations if we have the free space tree because
+ * we'll have to modify that tree as well.
+ */
+ if (btrfs_test_opt(fs_info, FREE_SPACE_TREE))
+ num_bytes *= 2;
+
spin_lock(&delayed_rsv->lock);
delayed_rsv->size += num_bytes;
delayed_rsv->full = 0;
@@ -191,8 +213,7 @@ int btrfs_delayed_refs_rsv_refill(struct btrfs_fs_info *fs_info,
if (!num_bytes)
return 0;
- ret = btrfs_reserve_metadata_bytes(fs_info->extent_root, block_rsv,
- num_bytes, flush);
+ ret = btrfs_reserve_metadata_bytes(fs_info, block_rsv, num_bytes, flush);
if (ret)
return ret;
btrfs_block_rsv_add_bytes(block_rsv, num_bytes, 0);