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authorJosef Bacik <josef@toxicpanda.com>2020-07-06 09:14:11 -0400
committerDavid Sterba <dsterba@suse.com>2020-07-27 12:55:42 +0200
commit48aaeebe4e1f3c76a703dc40e9245af1753dcefe (patch)
treee7115f27287120640210360344b54c06d5fbbf54 /fs/btrfs/block-group.h
parent60f8667b618e1cb2ded148a7b767bbb70d6c191c (diff)
btrfs: convert block group refcount to refcount_t
We have refcount_t now with the associated library to handle refcounts, which gives us extra debugging around reference count mistakes that may be made. For example it'll warn on any transition from 0->1 or 0->-1, which is handy for noticing cases where we've messed up reference counting. Convert the block group ref counting from an atomic_t to refcount_t and use the appropriate helpers. Reviewed-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: Josef Bacik <josef@toxicpanda.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/block-group.h')
-rw-r--r--fs/btrfs/block-group.h3
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/btrfs/block-group.h b/fs/btrfs/block-group.h
index b6ee70a039c7..adfd7583a17b 100644
--- a/fs/btrfs/block-group.h
+++ b/fs/btrfs/block-group.h
@@ -114,8 +114,7 @@ struct btrfs_block_group {
/* For block groups in the same raid type */
struct list_head list;
- /* Usage count */
- atomic_t count;
+ refcount_t refs;
/*
* List of struct btrfs_free_clusters for this block group.