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authorJohannes Thumshirn <johannes.thumshirn@wdc.com>2023-09-14 09:06:57 -0700
committerDavid Sterba <dsterba@suse.com>2023-10-12 16:44:09 +0200
commit515020900d447796bc2f0f57064663617a11b65d (patch)
tree61f91660a35c85e4fbaa6c2838d6d0887b6bc4fb /fs/btrfs/block-rsv.c
parentee1293308e01d359688243d665138f35a6f1f9b8 (diff)
btrfs: read raid stripe tree from disk
If we find the raid-stripe-tree on mount, read it from disk. This is a backward incompatible feature. The rescue=ignorebadroots mount option will skip this tree. Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/block-rsv.c')
-rw-r--r--fs/btrfs/block-rsv.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/btrfs/block-rsv.c b/fs/btrfs/block-rsv.c
index 6a8f9629bbbd..ceb5f586a2d5 100644
--- a/fs/btrfs/block-rsv.c
+++ b/fs/btrfs/block-rsv.c
@@ -356,6 +356,11 @@ void btrfs_update_global_block_rsv(struct btrfs_fs_info *fs_info)
min_items++;
}
+ if (btrfs_fs_incompat(fs_info, RAID_STRIPE_TREE)) {
+ num_bytes += btrfs_root_used(&fs_info->stripe_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
@@ -407,6 +412,7 @@ void btrfs_init_root_block_rsv(struct btrfs_root *root)
case BTRFS_EXTENT_TREE_OBJECTID:
case BTRFS_FREE_SPACE_TREE_OBJECTID:
case BTRFS_BLOCK_GROUP_TREE_OBJECTID:
+ case BTRFS_RAID_STRIPE_TREE_OBJECTID:
root->block_rsv = &fs_info->delayed_refs_rsv;
break;
case BTRFS_ROOT_TREE_OBJECTID: