diff options
Diffstat (limited to 'drivers/block/drbd/drbd_int.h')
| -rw-r--r-- | drivers/block/drbd/drbd_int.h | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 9f5c13513d63..cb45ca10d4b1 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -2355,33 +2355,6 @@ static inline int drbd_set_ed_uuid(struct drbd_conf *mdev, u64 val) return changed; } -static inline int seq_cmp(u32 a, u32 b) -{ - /* we assume wrap around at 32bit. - * for wrap around at 24bit (old atomic_t), - * we'd have to - * a <<= 8; b <<= 8; - */ - return (s32)(a) - (s32)(b); -} -#define seq_lt(a, b) (seq_cmp((a), (b)) < 0) -#define seq_gt(a, b) (seq_cmp((a), (b)) > 0) -#define seq_ge(a, b) (seq_cmp((a), (b)) >= 0) -#define seq_le(a, b) (seq_cmp((a), (b)) <= 0) -/* CAUTION: please no side effects in arguments! */ -#define seq_max(a, b) ((u32)(seq_gt((a), (b)) ? (a) : (b))) - -static inline void update_peer_seq(struct drbd_conf *mdev, unsigned int new_seq) -{ - unsigned int m; - spin_lock(&mdev->peer_seq_lock); - m = seq_max(mdev->peer_seq, new_seq); - mdev->peer_seq = m; - spin_unlock(&mdev->peer_seq_lock); - if (m == new_seq) - wake_up(&mdev->seq_wait); -} - static inline void drbd_update_congested(struct drbd_conf *mdev) { struct sock *sk = mdev->tconn->data.socket->sk; |