diff options
| author | Kent Overstreet <kent.overstreet@linux.dev> | 2024-07-03 20:35:36 -0400 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-07-11 20:10:55 -0400 |
| commit | f236ea4bca00ce457e165403a50a8938dced9623 (patch) | |
| tree | 5a92ec1226a2ef2cdc75754c9e016a011a95e509 /fs/bcachefs/btree_locking.h | |
| parent | f0f3e5114871330faf3248e92ceaa4f18602e941 (diff) | |
bcachefs: Set PF_MEMALLOC_NOFS when trans->locked
proper lock ordering is: fs_reclaim -> btree node locks
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/btree_locking.h')
| -rw-r--r-- | fs/bcachefs/btree_locking.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/fs/bcachefs/btree_locking.h b/fs/bcachefs/btree_locking.h index 7f41545b9147..75a6274c7d27 100644 --- a/fs/bcachefs/btree_locking.h +++ b/fs/bcachefs/btree_locking.h @@ -193,6 +193,28 @@ int bch2_six_check_for_deadlock(struct six_lock *lock, void *p); /* lock: */ +static inline void trans_set_locked(struct btree_trans *trans) +{ + if (!trans->locked) { + trans->locked = true; + trans->last_unlock_ip = 0; + + trans->pf_memalloc_nofs = (current->flags & PF_MEMALLOC_NOFS) != 0; + current->flags |= PF_MEMALLOC_NOFS; + } +} + +static inline void trans_set_unlocked(struct btree_trans *trans) +{ + if (trans->locked) { + trans->locked = false; + trans->last_unlock_ip = _RET_IP_; + + if (!trans->pf_memalloc_nofs) + current->flags &= ~PF_MEMALLOC_NOFS; + } +} + static inline int __btree_node_lock_nopath(struct btree_trans *trans, struct btree_bkey_cached_common *b, enum six_lock_type type, |