diff options
Diffstat (limited to 'fs/bcachefs/sb-members.h')
| -rw-r--r-- | fs/bcachefs/sb-members.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/bcachefs/sb-members.h b/fs/bcachefs/sb-members.h index d6d391dc21ca..a3ba1ddebe4d 100644 --- a/fs/bcachefs/sb-members.h +++ b/fs/bcachefs/sb-members.h @@ -195,6 +195,13 @@ static inline bool bucket_valid(const struct bch_dev *ca, u64 b) return b - ca->mi.first_bucket < ca->mi.nbuckets_minus_first; } +static inline struct bch_dev *bch2_dev_have_ref(const struct bch_fs *c, unsigned dev) +{ + EBUG_ON(!bch2_dev_exists(c, dev)); + + return rcu_dereference_check(c->devs[dev], 1); +} + /* * If a key exists that references a device, the device won't be going away and * we can omit rcu_read_lock(): |