From: Philipp Reisner Date: Tue, 29 Mar 2011 16:15:49 +0000 (+0200) Subject: drbd: Implemented conn_lowest_disk() X-Git-Tag: firefly_0821_release~3680^2~1419^2~18^2~297 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4669265a7bb146ae072951e26c8527fdc733eff6;p=firefly-linux-kernel-4.4.55.git drbd: Implemented conn_lowest_disk() Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- diff --git a/drivers/block/drbd/drbd_state.c b/drivers/block/drbd/drbd_state.c index 36703fee3b0c..896d5dc833cb 100644 --- a/drivers/block/drbd/drbd_state.c +++ b/drivers/block/drbd/drbd_state.c @@ -121,6 +121,18 @@ enum drbd_disk_state conn_highest_disk(struct drbd_tconn *tconn) return ds; } +enum drbd_disk_state conn_lowest_disk(struct drbd_tconn *tconn) +{ + enum drbd_disk_state ds = D_MASK; + struct drbd_conf *mdev; + int vnr; + + idr_for_each_entry(&tconn->volumes, mdev, vnr) + ds = min_t(enum drbd_disk_state, ds, mdev->state.disk); + + return ds; +} + enum drbd_disk_state conn_highest_pdsk(struct drbd_tconn *tconn) { enum drbd_disk_state ds = D_DISKLESS; diff --git a/drivers/block/drbd/drbd_state.h b/drivers/block/drbd/drbd_state.h index 286af0612dc4..757f9d93643f 100644 --- a/drivers/block/drbd/drbd_state.h +++ b/drivers/block/drbd/drbd_state.h @@ -153,6 +153,7 @@ static inline int drbd_request_state(struct drbd_conf *mdev, 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_lowest_disk(struct drbd_tconn *tconn); enum drbd_disk_state conn_highest_pdsk(struct drbd_tconn *tconn); enum drbd_conns conn_lowest_conn(struct drbd_tconn *tconn);