diff options
| -rw-r--r-- | fs/btrfs/backref.c | 2 | ||||
| -rw-r--r-- | fs/btrfs/delayed-ref.c | 8 | ||||
| -rw-r--r-- | fs/btrfs/delayed-ref.h | 8 | ||||
| -rw-r--r-- | fs/btrfs/disk-io.c | 2 | ||||
| -rw-r--r-- | fs/btrfs/extent-tree.c | 6 |
5 files changed, 14 insertions, 12 deletions
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index 7699e16784d3..116338344224 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -1286,7 +1286,7 @@ again: head = btrfs_find_delayed_ref_head(delayed_refs, bytenr); if (head) { if (!mutex_trylock(&head->mutex)) { - atomic_inc(&head->node.refs); + refcount_inc(&head->node.refs); spin_unlock(&delayed_refs->lock); btrfs_release_path(path); diff --git a/fs/btrfs/delayed-ref.c b/fs/btrfs/delayed-ref.c index 6eb80952efb3..be70d90dfee5 100644 --- a/fs/btrfs/delayed-ref.c +++ b/fs/btrfs/delayed-ref.c @@ -164,7 +164,7 @@ int btrfs_delayed_ref_lock(struct btrfs_trans_handle *trans, if (mutex_trylock(&head->mutex)) return 0; - atomic_inc(&head->node.refs); + refcount_inc(&head->node.refs); spin_unlock(&delayed_refs->lock); mutex_lock(&head->mutex); @@ -590,7 +590,7 @@ add_delayed_ref_head(struct btrfs_fs_info *fs_info, delayed_refs = &trans->transaction->delayed_refs; /* first set the basic ref node struct up */ - atomic_set(&ref->refs, 1); + refcount_set(&ref->refs, 1); ref->bytenr = bytenr; ref->num_bytes = num_bytes; ref->ref_mod = count_mod; @@ -682,7 +682,7 @@ add_delayed_tree_ref(struct btrfs_fs_info *fs_info, delayed_refs = &trans->transaction->delayed_refs; /* first set the basic ref node struct up */ - atomic_set(&ref->refs, 1); + refcount_set(&ref->refs, 1); ref->bytenr = bytenr; ref->num_bytes = num_bytes; ref->ref_mod = 1; @@ -739,7 +739,7 @@ add_delayed_data_ref(struct btrfs_fs_info *fs_info, seq = atomic64_read(&fs_info->tree_mod_seq); /* first set the basic ref node struct up */ - atomic_set(&ref->refs, 1); + refcount_set(&ref->refs, 1); ref->bytenr = bytenr; ref->num_bytes = num_bytes; ref->ref_mod = 1; diff --git a/fs/btrfs/delayed-ref.h b/fs/btrfs/delayed-ref.h index 0e537f98f1a1..c0264ff01b53 100644 --- a/fs/btrfs/delayed-ref.h +++ b/fs/btrfs/delayed-ref.h @@ -18,6 +18,8 @@ #ifndef __DELAYED_REF__ #define __DELAYED_REF__ +#include <linux/refcount.h> + /* these are the possible values of struct btrfs_delayed_ref_node->action */ #define BTRFS_ADD_DELAYED_REF 1 /* add one backref to the tree */ #define BTRFS_DROP_DELAYED_REF 2 /* delete one backref from the tree */ @@ -53,7 +55,7 @@ struct btrfs_delayed_ref_node { u64 seq; /* ref count on this data structure */ - atomic_t refs; + refcount_t refs; /* * how many refs is this entry adding or deleting. For @@ -220,8 +222,8 @@ btrfs_free_delayed_extent_op(struct btrfs_delayed_extent_op *op) static inline void btrfs_put_delayed_ref(struct btrfs_delayed_ref_node *ref) { - WARN_ON(atomic_read(&ref->refs) == 0); - if (atomic_dec_and_test(&ref->refs)) { + WARN_ON(refcount_read(&ref->refs) == 0); + if (refcount_dec_and_test(&ref->refs)) { WARN_ON(ref->in_tree); switch (ref->type) { case BTRFS_TREE_BLOCK_REF_KEY: diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index e4aa64c263f9..3748bc54a6ab 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -4343,7 +4343,7 @@ static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans, head = rb_entry(node, struct btrfs_delayed_ref_head, href_node); if (!mutex_trylock(&head->mutex)) { - atomic_inc(&head->node.refs); + refcount_inc(&head->node.refs); spin_unlock(&delayed_refs->lock); mutex_lock(&head->mutex); diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 5c84eea60703..5a7ddcff406b 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -892,7 +892,7 @@ search_again: head = btrfs_find_delayed_ref_head(delayed_refs, bytenr); if (head) { if (!mutex_trylock(&head->mutex)) { - atomic_inc(&head->node.refs); + refcount_inc(&head->node.refs); spin_unlock(&delayed_refs->lock); btrfs_release_path(path); @@ -2980,7 +2980,7 @@ again: struct btrfs_delayed_ref_node *ref; ref = &head->node; - atomic_inc(&ref->refs); + refcount_inc(&ref->refs); spin_unlock(&delayed_refs->lock); /* @@ -3057,7 +3057,7 @@ static noinline int check_delayed_ref(struct btrfs_root *root, } if (!mutex_trylock(&head->mutex)) { - atomic_inc(&head->node.refs); + refcount_inc(&head->node.refs); spin_unlock(&delayed_refs->lock); btrfs_release_path(path); |