diff options
| author | Philipp Reisner <philipp.reisner@linbit.com> | 2011-03-29 10:52:01 +0200 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2012-11-08 16:45:04 +0100 |
| commit | da9fbc276e9d42638df68e8515d06750695612ca (patch) | |
| tree | e937b9f5e617ae8ea40bb1ac3d79ed11849e55c7 /drivers/block/drbd/drbd_state.h | |
| parent | 8e0af25fa85c9efe393128b0a0dd874981edb22f (diff) | |
drbd: Introduced a new type union drbd_dev_state
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'drivers/block/drbd/drbd_state.h')
| -rw-r--r-- | drivers/block/drbd/drbd_state.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/block/drbd/drbd_state.h b/drivers/block/drbd/drbd_state.h index fdcfab9c1d84..0f8441de29cd 100644 --- a/drivers/block/drbd/drbd_state.h +++ b/drivers/block/drbd/drbd_state.h @@ -72,6 +72,40 @@ enum chg_state_flags { CS_IGN_OUTD_FAIL = 1 << 10, }; +/* drbd_dev_state and drbd_state are different types. This is to stress the + small difference. There is no suspended flag (.susp), and no suspended + while fence handler runs flas (susp_fen). */ +union drbd_dev_state { + struct { +#if defined(__LITTLE_ENDIAN_BITFIELD) + unsigned role:2 ; /* 3/4 primary/secondary/unknown */ + unsigned peer:2 ; /* 3/4 primary/secondary/unknown */ + unsigned conn:5 ; /* 17/32 cstates */ + unsigned disk:4 ; /* 8/16 from D_DISKLESS to D_UP_TO_DATE */ + unsigned pdsk:4 ; /* 8/16 from D_DISKLESS to D_UP_TO_DATE */ + unsigned _unused:1 ; + unsigned aftr_isp:1 ; /* isp .. imposed sync pause */ + unsigned peer_isp:1 ; + unsigned user_isp:1 ; + unsigned _pad:11; /* 0 unused */ +#elif defined(__BIG_ENDIAN_BITFIELD) + unsigned _pad:11; + unsigned user_isp:1 ; + unsigned peer_isp:1 ; + unsigned aftr_isp:1 ; /* isp .. imposed sync pause */ + unsigned _unused:1 ; + unsigned pdsk:4 ; /* 8/16 from D_DISKLESS to D_UP_TO_DATE */ + unsigned disk:4 ; /* 8/16 from D_DISKLESS to D_UP_TO_DATE */ + unsigned conn:5 ; /* 17/32 cstates */ + unsigned peer:2 ; /* 3/4 primary/secondary/unknown */ + unsigned role:2 ; /* 3/4 primary/secondary/unknown */ +#else +# error "this endianess is not supported" +#endif + }; + unsigned int i; +}; + extern enum drbd_state_rv drbd_change_state(struct drbd_conf *mdev, enum chg_state_flags f, union drbd_state mask, |