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drbd: Implemented flags for the resize packet

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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
2010-03-24 17:11:33 +01:00
parent 02d9a94bbb
commit e89b591c3a
4 changed files with 25 additions and 18 deletions
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drivers/block/drbd/drbd_int.h
+8 -6
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@@ -481,7 +481,8 @@ struct p_sizes {
u64 u_size; /* user requested size */
u64 c_size; /* current exported size */
u32 max_segment_size; /* Maximal size of a BIO */
u32 queue_order_type;
u16 queue_order_type; /* not yet implemented in DRBD*/
u16 dds_flags; /* use enum dds_flags here. */
} __packed;
struct p_state {
@@ -1081,6 +1082,11 @@ enum chg_state_flags {
CS_ORDERED = CS_WAIT_COMPLETE + CS_SERIALIZE,
};
enum dds_flags {
DDSF_FORCED = 1,
DDSF_NO_RESYNC = 2, /* Do not run a resync for the new space */
};
extern void drbd_init_set_defaults(struct drbd_conf *mdev);
extern int drbd_change_state(struct drbd_conf *mdev, enum chg_state_flags f,
union drbd_state mask, union drbd_state val);
@@ -1113,7 +1119,7 @@ extern int drbd_send_protocol(struct drbd_conf *mdev);
extern int drbd_send_uuids(struct drbd_conf *mdev);
extern int drbd_send_uuids_skip_initial_sync(struct drbd_conf *mdev);
extern int drbd_send_sync_uuid(struct drbd_conf *mdev, u64 val);
extern int drbd_send_sizes(struct drbd_conf *mdev, int trigger_reply);
extern int drbd_send_sizes(struct drbd_conf *mdev, int trigger_reply, enum dds_flags flags);
extern int _drbd_send_state(struct drbd_conf *mdev);
extern int drbd_send_state(struct drbd_conf *mdev);
extern int _drbd_send_cmd(struct drbd_conf *mdev, struct socket *sock,
@@ -1382,10 +1388,6 @@ extern void drbd_suspend_io(struct drbd_conf *mdev);
extern void drbd_resume_io(struct drbd_conf *mdev);
extern char *ppsize(char *buf, unsigned long long size);
extern sector_t drbd_new_dev_size(struct drbd_conf *, struct drbd_backing_dev *, int);
enum dds_flags {
DDSF_FORCED = 1,
DDSF_NO_RESYNC = 2, /* Do not run a resync for the new space */
};
enum determine_dev_size { dev_size_error = -1, unchanged = 0, shrunk = 1, grew = 2 };
extern enum determine_dev_size drbd_determin_dev_size(struct drbd_conf *, enum dds_flags) __must_hold(local);
extern void resync_after_online_grow(struct drbd_conf *);