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OpenCloudOS-Kernel
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drbd: Implemented conn_lowest_disk() 

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
This commit is contained in:
Philipp Reisner 2011-03-29 18:15:49 +02:00
parent 19f83c7661
commit 4669265a7b
2 changed files with 13 additions and 0 deletions
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12
drivers/block/drbd/drbd_state.c
View File

@ -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;

1
drivers/block/drbd/drbd_state.h
View File

@ -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);