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Btrfs: always save ref_root in delayed refs 

For consistent backref walking and (later) qgroup calculation the
information to which root a delayed ref belongs is useful even for shared
refs.

Signed-off-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
hifive-unleashed-5.1
Arne Jansen 2011-09-14 14:01:24 +02:00 committed by Jan Schmidt
parent 66d7e7f09f
commit eebe063b7f
2 changed files with 12 additions and 18 deletions
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18
fs/btrfs/delayed-ref.c
View File

@ -495,13 +495,12 @@ static noinline int add_delayed_tree_ref(struct btrfs_fs_info *fs_info,
ref->in_tree = 1;
full_ref = btrfs_delayed_node_to_tree_ref(ref);
if (parent) {
full_ref->parent = parent;
full_ref->parent = parent;
full_ref->root = ref_root;
if (parent)
ref->type = BTRFS_SHARED_BLOCK_REF_KEY;
} else {
full_ref->root = ref_root;
else
ref->type = BTRFS_TREE_BLOCK_REF_KEY;
}
full_ref->level = level;
trace_btrfs_delayed_tree_ref(ref, full_ref, action);
@ -551,13 +550,12 @@ static noinline int add_delayed_data_ref(struct btrfs_fs_info *fs_info,
ref->in_tree = 1;
full_ref = btrfs_delayed_node_to_data_ref(ref);
if (parent) {
full_ref->parent = parent;
full_ref->parent = parent;
full_ref->root = ref_root;
if (parent)
ref->type = BTRFS_SHARED_DATA_REF_KEY;
} else {
full_ref->root = ref_root;
else
ref->type = BTRFS_EXTENT_DATA_REF_KEY;
}
full_ref->objectid = owner;
full_ref->offset = offset;

12
fs/btrfs/delayed-ref.h
View File

@ -98,19 +98,15 @@ struct btrfs_delayed_ref_head {
struct btrfs_delayed_tree_ref {
struct btrfs_delayed_ref_node node;
union {
u64 root;
u64 parent;
};
u64 root;
u64 parent;
int level;
};
struct btrfs_delayed_data_ref {
struct btrfs_delayed_ref_node node;
union {
u64 root;
u64 parent;
};
u64 root;
u64 parent;
u64 objectid;
u64 offset;
};