From 95a06077f7edbd00d32612562be4d857a5b7df54 Mon Sep 17 00:00:00 2001 From: Jan Schmidt Date: Tue, 29 May 2012 17:06:54 +0200 Subject: Btrfs: use delayed ref sequence numbers for all fs-tree updates The sequence number for delayed refs is needed to postpone certain delayed refs for a very short period while walking backrefs. Before the tree modification log, we thought we'd only have to hold back those references that don't have a counter operation. While now we've the tree mod log, we're rewinding fs tree blocks to a defined consistent state. We cannot know in advance for which tree block we'll be doing rewind operations later. Therefore, we must postpone all the delayed refs for fs-tree blocks, even those having a counter operation. Signed-off-by: Jan Schmidt --- fs/btrfs/ctree.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'fs/btrfs/ctree.h') diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 6ba21b12cec4..f5f11a6c5e92 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -3121,4 +3121,11 @@ void btrfs_get_tree_mod_seq(struct btrfs_fs_info *fs_info, void btrfs_put_tree_mod_seq(struct btrfs_fs_info *fs_info, struct seq_list *elem); +static inline int is_fstree(u64 rootid) +{ + if (rootid == BTRFS_FS_TREE_OBJECTID || + (s64)rootid >= (s64)BTRFS_FIRST_FREE_OBJECTID) + return 1; + return 0; +} #endif -- cgit v1.2.3