btrfs: use explicit initializer for seq_elem
Using {} as initializer for struct seq_elem does not properly initialize
the list_head member, but it currently works because it gets set through
btrfs_get_tree_mod_seq if 'seq' is 0.
Signed-off-by: David Sterba <dsterba@suse.cz>
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index f55721f..9de772e 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -1206,7 +1206,7 @@
struct ulist *roots = NULL;
struct ulist_iterator uiter;
struct ulist_node *node;
- struct seq_list elem = {};
+ struct seq_list elem = SEQ_LIST_INIT(elem);
int ret = 0;
tmp = ulist_alloc(GFP_NOFS);
@@ -1610,7 +1610,7 @@
struct ulist *roots = NULL;
struct ulist_node *ref_node = NULL;
struct ulist_node *root_node = NULL;
- struct seq_list tree_mod_seq_elem = {};
+ struct seq_list tree_mod_seq_elem = SEQ_LIST_INIT(tree_mod_seq_elem);
struct ulist_iterator ref_uiter;
struct ulist_iterator root_uiter;
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index b3dd55f..36e009e 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1328,6 +1328,8 @@
u64 seq;
};
+#define SEQ_LIST_INIT(name) { .list = LIST_HEAD_INIT((name).list), .seq = 0 }
+
enum btrfs_orphan_cleanup_state {
ORPHAN_CLEANUP_STARTED = 1,
ORPHAN_CLEANUP_DONE = 2,
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index d49fe8a..0a9fe21 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -3039,7 +3039,7 @@
static int check_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
u64 disko)
{
- struct seq_list tree_mod_seq_elem = {};
+ struct seq_list tree_mod_seq_elem = SEQ_LIST_INIT(tree_mod_seq_elem);
struct ulist *roots;
struct ulist_iterator uiter;
struct ulist_node *root_node = NULL;
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 97159a8..7f7eb39 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -1845,7 +1845,7 @@
struct ulist *roots = NULL;
struct ulist *qgroups, *tmp;
struct btrfs_qgroup *qgroup;
- struct seq_list elem = {};
+ struct seq_list elem = SEQ_LIST_INIT(elem);
u64 seq;
int old_roots = 0;
int new_roots = 0;
@@ -1967,7 +1967,7 @@
int err;
struct btrfs_qgroup *qg;
u64 root_obj = 0;
- struct seq_list elem = {};
+ struct seq_list elem = SEQ_LIST_INIT(elem);
parents = ulist_alloc(GFP_NOFS);
if (!parents)
@@ -2522,7 +2522,7 @@
{
struct btrfs_key found;
struct ulist *roots = NULL;
- struct seq_list tree_mod_seq_elem = {};
+ struct seq_list tree_mod_seq_elem = SEQ_LIST_INIT(tree_mod_seq_elem);
u64 num_bytes;
u64 seq;
int new_roots;