From 8dbfc14fc736eb701089aff09645c3d4ad3decb1 Mon Sep 17 00:00:00 2001 From: Filipe Manana Date: Thu, 20 Jul 2023 12:44:33 +0100 Subject: [PATCH] btrfs: account block group tree when calculating global reserve size When using the block group tree feature, this tree is a critical tree just like the extent, csum and free space trees, and just like them it uses the delayed refs block reserve. So take into account the block group tree, and its current size, when calculating the size for the global reserve. CC: stable@vger.kernel.org # 6.1+ Signed-off-by: Filipe Manana Reviewed-by: David Sterba Signed-off-by: David Sterba --- fs/btrfs/block-rsv.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/btrfs/block-rsv.c b/fs/btrfs/block-rsv.c index 6279d20..77684c5 100644 --- a/fs/btrfs/block-rsv.c +++ b/fs/btrfs/block-rsv.c @@ -349,6 +349,11 @@ void btrfs_update_global_block_rsv(struct btrfs_fs_info *fs_info) } read_unlock(&fs_info->global_root_lock); + if (btrfs_fs_compat_ro(fs_info, BLOCK_GROUP_TREE)) { + num_bytes += btrfs_root_used(&fs_info->block_group_root->root_item); + min_items++; + } + /* * But we also want to reserve enough space so we can do the fallback * global reserve for an unlink, which is an additional -- 2.7.4