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btrfs: pass fs_info to functions that search for delayed ref heads

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One of the following patches in the series will need to access fs_info in
the function find_ref_head(), so pass a fs_info argument to it as well as
to the functions btrfs_select_ref_head() and btrfs_find_delayed_ref_head()
which call find_ref_head().

Reviewed-by: Boris Burkov <boris@bur.io>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Filipe Manana 2024-10-21 16:08:18 +01:00 committed by David Sterba
parent 58a4391810
commit 765f828902
4 changed files with 18 additions and 11 deletions
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3
fs/btrfs/backref.c
View File

@ -1442,7 +1442,8 @@ static int find_parent_nodes(struct btrfs_backref_walk_ctx *ctx,
*/
delayed_refs = &ctx->trans->transaction->delayed_refs;
spin_lock(&delayed_refs->lock);
head = btrfs_find_delayed_ref_head(delayed_refs, ctx->bytenr);
head = btrfs_find_delayed_ref_head(ctx->fs_info, delayed_refs,
ctx->bytenr);
if (head) {
if (!mutex_trylock(&head->mutex)) {
refcount_inc(&head->refs);

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

@ -399,6 +399,7 @@ static struct btrfs_delayed_ref_head *find_first_ref_head(
* is given, the next bigger entry is returned if no exact match is found.
*/
static struct btrfs_delayed_ref_head *find_ref_head(
const struct btrfs_fs_info *fs_info,
struct btrfs_delayed_ref_root *dr, u64 bytenr,
bool return_bigger)
{
@ -558,6 +559,7 @@ int btrfs_check_delayed_seq(struct btrfs_fs_info *fs_info, u64 seq)
}
struct btrfs_delayed_ref_head *btrfs_select_ref_head(
const struct btrfs_fs_info *fs_info,
struct btrfs_delayed_ref_root *delayed_refs)
{
struct btrfs_delayed_ref_head *head;
@ -565,8 +567,8 @@ struct btrfs_delayed_ref_head *btrfs_select_ref_head(
spin_lock(&delayed_refs->lock);
again:
head = find_ref_head(delayed_refs, delayed_refs->run_delayed_start,
true);
head = find_ref_head(fs_info, delayed_refs,
delayed_refs->run_delayed_start, true);
if (!head && delayed_refs->run_delayed_start != 0) {
delayed_refs->run_delayed_start = 0;
head = find_first_ref_head(delayed_refs);
@ -1188,11 +1190,13 @@ void btrfs_put_delayed_ref(struct btrfs_delayed_ref_node *ref)
* head node if found, or NULL if not.
*/
struct btrfs_delayed_ref_head *
btrfs_find_delayed_ref_head(struct btrfs_delayed_ref_root *delayed_refs, u64 bytenr)
btrfs_find_delayed_ref_head(const struct btrfs_fs_info *fs_info,
struct btrfs_delayed_ref_root *delayed_refs,
u64 bytenr)
{
lockdep_assert_held(&delayed_refs->lock);
return find_ref_head(delayed_refs, bytenr, false);
return find_ref_head(fs_info, delayed_refs, bytenr, false);
}
static int find_comp(struct btrfs_delayed_ref_node *entry, u64 root, u64 parent)

4
fs/btrfs/delayed-ref.h
View File

@ -367,7 +367,8 @@ void btrfs_merge_delayed_refs(struct btrfs_fs_info *fs_info,
struct btrfs_delayed_ref_head *head);
struct btrfs_delayed_ref_head *
btrfs_find_delayed_ref_head(struct btrfs_delayed_ref_root *delayed_refs,
btrfs_find_delayed_ref_head(const struct btrfs_fs_info *fs_info,
struct btrfs_delayed_ref_root *delayed_refs,
u64 bytenr);
static inline void btrfs_delayed_ref_unlock(struct btrfs_delayed_ref_head *head)
{
@ -377,6 +378,7 @@ void btrfs_delete_ref_head(struct btrfs_delayed_ref_root *delayed_refs,
struct btrfs_delayed_ref_head *head);
struct btrfs_delayed_ref_head *btrfs_select_ref_head(
const struct btrfs_fs_info *fs_info,
struct btrfs_delayed_ref_root *delayed_refs);
void btrfs_unselect_ref_head(struct btrfs_delayed_ref_root *delayed_refs,
struct btrfs_delayed_ref_head *head);

10
fs/btrfs/extent-tree.c
View File

@ -182,7 +182,7 @@ int btrfs_lookup_extent_info(struct btrfs_trans_handle *trans,
delayed_refs = &trans->transaction->delayed_refs;
spin_lock(&delayed_refs->lock);
head = btrfs_find_delayed_ref_head(delayed_refs, bytenr);
head = btrfs_find_delayed_ref_head(fs_info, delayed_refs, bytenr);
if (head) {
if (!mutex_trylock(&head->mutex)) {
refcount_inc(&head->refs);
@ -2049,7 +2049,7 @@ static noinline int __btrfs_run_delayed_refs(struct btrfs_trans_handle *trans,
do {
if (!locked_ref) {
locked_ref = btrfs_select_ref_head(delayed_refs);
locked_ref = btrfs_select_ref_head(fs_info, delayed_refs);
if (IS_ERR_OR_NULL(locked_ref)) {
if (PTR_ERR(locked_ref) == -EAGAIN) {
continue;
@ -2251,7 +2251,7 @@ static noinline int check_delayed_ref(struct btrfs_root *root,
delayed_refs = &cur_trans->delayed_refs;
spin_lock(&delayed_refs->lock);
head = btrfs_find_delayed_ref_head(delayed_refs, bytenr);
head = btrfs_find_delayed_ref_head(root->fs_info, delayed_refs, bytenr);
if (!head) {
spin_unlock(&delayed_refs->lock);
btrfs_put_transaction(cur_trans);
@ -3359,7 +3359,7 @@ static noinline int check_ref_cleanup(struct btrfs_trans_handle *trans,
delayed_refs = &trans->transaction->delayed_refs;
spin_lock(&delayed_refs->lock);
head = btrfs_find_delayed_ref_head(delayed_refs, bytenr);
head = btrfs_find_delayed_ref_head(trans->fs_info, delayed_refs, bytenr);
if (!head)
goto out_delayed_unlock;
@ -5494,7 +5494,7 @@ static int check_ref_exists(struct btrfs_trans_handle *trans,
*/
delayed_refs = &trans->transaction->delayed_refs;
spin_lock(&delayed_refs->lock);
head = btrfs_find_delayed_ref_head(delayed_refs, bytenr);
head = btrfs_find_delayed_ref_head(root->fs_info, delayed_refs, bytenr);
if (!head)
goto out;
if (!mutex_trylock(&head->mutex)) {