From: Philipp Reisner <philipp.reisner@linbit.com>
To: linux-kernel@vger.kernel.org, Jens Axboe <axboe@kernel.dk>
Cc: drbd-dev@lists.linbit.com
Subject: [PATCH 07/11] drbd: Implemented conn_lowest_conn()
Date: Fri, 9 Sep 2011 13:17:32 +0200 [thread overview]
Message-ID: <1315567056-32314-8-git-send-email-philipp.reisner@linbit.com> (raw)
In-Reply-To: <1315567056-32314-1-git-send-email-philipp.reisner@linbit.com>
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
---
drivers/block/drbd/drbd_state.c | 12 ++++++++++++
drivers/block/drbd/drbd_state.h | 1 +
2 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/drivers/block/drbd/drbd_state.c b/drivers/block/drbd/drbd_state.c
index cfd923e..e441d1f 100644
--- a/drivers/block/drbd/drbd_state.c
+++ b/drivers/block/drbd/drbd_state.c
@@ -115,6 +115,18 @@ enum drbd_disk_state conn_highest_pdsk(struct drbd_tconn *tconn)
return ds;
}
+enum drbd_disk_state conn_lowest_conn(struct drbd_tconn *tconn)
+{
+ enum drbd_conns conn = C_MASK;
+ struct drbd_conf *mdev;
+ int vnr;
+
+ idr_for_each_entry(&tconn->volumes, mdev, vnr)
+ conn = min_t(enum drbd_conns, conn, mdev->state.conn);
+
+ return conn;
+}
+
/**
* cl_wide_st_chg() - true if the state change is a cluster wide one
* @mdev: DRBD device.
diff --git a/drivers/block/drbd/drbd_state.h b/drivers/block/drbd/drbd_state.h
index 0f8441d..e554537 100644
--- a/drivers/block/drbd/drbd_state.h
+++ b/drivers/block/drbd/drbd_state.h
@@ -154,5 +154,6 @@ enum drbd_role conn_highest_role(struct drbd_tconn *tconn);
enum drbd_role conn_highest_peer(struct drbd_tconn *tconn);
enum drbd_disk_state conn_highest_disk(struct drbd_tconn *tconn);
enum drbd_disk_state conn_highest_pdsk(struct drbd_tconn *tconn);
+enum drbd_disk_state conn_lowest_conn(struct drbd_tconn *tconn);
#endif
--
1.7.4.1
next prev parent reply other threads:[~2011-09-09 11:17 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-09 11:17 [RFC 00/11] drbd: part 9 of adding multiple volume support to drbd Philipp Reisner
2011-09-09 11:17 ` [PATCH 01/11] drbd: Introduced drbd_read_state() Philipp Reisner
2011-09-09 11:17 ` [PATCH 02/11] drbd: Renamed id_susp(union drbd_state s) to drbd_suspended(struct drbd_conf *) Philipp Reisner
2011-09-09 11:17 ` [PATCH 03/11] drbd: Moved susp, susp_nod and susp_fen to the connection object Philipp Reisner
2011-09-09 11:17 ` [PATCH 04/11] drbd: Introduced a new type union drbd_dev_state Philipp Reisner
2011-09-09 11:17 ` [PATCH 05/11] drbd: Renamed nms to ns_max Philipp Reisner
2011-09-09 11:17 ` [PATCH 06/11] drbd: Calculate and provide ns_min to the w_after_conn_state_ch() work Philipp Reisner
2011-09-09 11:17 ` Philipp Reisner [this message]
2011-09-09 11:17 ` [PATCH 08/11] drbd: Implemented conn_lowest_disk() Philipp Reisner
2011-09-09 11:17 ` [PATCH 09/11] drbd: Implemented IO thawing for multiple volumes Philipp Reisner
2011-09-09 11:17 ` [PATCH 10/11] drbd: Improved logging of state changes Philipp Reisner
2011-09-09 11:17 ` [PATCH 11/11] drbd: Use tconn in request_timer_fn() Philipp Reisner
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