drbd: Implemented flags for the resize packet
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 37a25a6..e091324 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -481,7 +481,8 @@
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 @@
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_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_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 *);
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 65c2a65..a478dad 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -1240,7 +1240,7 @@
os.disk == D_ATTACHING && ns.disk == D_NEGOTIATING) {
kfree(mdev->p_uuid); /* We expect to receive up-to-date UUIDs soon. */
mdev->p_uuid = NULL; /* ...to not use the old ones in the mean time */
- drbd_send_sizes(mdev, 0); /* to start sync... */
+ drbd_send_sizes(mdev, 0, 0); /* to start sync... */
drbd_send_uuids(mdev);
drbd_send_state(mdev);
}
@@ -1763,7 +1763,7 @@
(struct p_header *)&p, sizeof(p));
}
-int drbd_send_sizes(struct drbd_conf *mdev, int trigger_reply)
+int drbd_send_sizes(struct drbd_conf *mdev, int trigger_reply, enum dds_flags flags)
{
struct p_sizes p;
sector_t d_size, u_size;
@@ -1775,7 +1775,6 @@
d_size = drbd_get_max_capacity(mdev->ldev);
u_size = mdev->ldev->dc.disk_size;
q_order_type = drbd_queue_order_type(mdev);
- p.queue_order_type = cpu_to_be32(drbd_queue_order_type(mdev));
put_ldev(mdev);
} else {
d_size = 0;
@@ -1787,7 +1786,8 @@
p.u_size = cpu_to_be64(u_size);
p.c_size = cpu_to_be64(trigger_reply ? 0 : drbd_get_capacity(mdev->this_bdev));
p.max_segment_size = cpu_to_be32(queue_max_segment_size(mdev->rq_queue));
- p.queue_order_type = cpu_to_be32(q_order_type);
+ p.queue_order_type = cpu_to_be16(q_order_type);
+ p.dds_flags = cpu_to_be16(flags);
ok = drbd_send_cmd(mdev, USE_DATA_SOCKET, P_SIZES,
(struct p_header *)&p, sizeof(p));
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index 360e506..6f79333 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -1521,7 +1521,7 @@
set_bit(RESIZE_PENDING, &mdev->flags);
drbd_send_uuids(mdev);
- drbd_send_sizes(mdev, 1);
+ drbd_send_sizes(mdev, 1, 0);
}
fail:
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 6876041..11b1baf 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -902,7 +902,7 @@
if (!drbd_send_protocol(mdev))
return -1;
drbd_send_sync_param(mdev, &mdev->sync_conf);
- drbd_send_sizes(mdev, 0);
+ drbd_send_sizes(mdev, 0, 0);
drbd_send_uuids(mdev);
drbd_send_state(mdev);
clear_bit(USE_DEGR_WFC_T, &mdev->flags);
@@ -2866,6 +2866,7 @@
unsigned int max_seg_s;
sector_t p_size, p_usize, my_usize;
int ldsc = 0; /* local disk size changed */
+ enum dds_flags ddsf;
ERR_IF(h->length != (sizeof(*p)-sizeof(*h))) return FALSE;
if (drbd_recv(mdev, h->payload, h->length) != h->length)
@@ -2921,8 +2922,9 @@
}
#undef min_not_zero
+ ddsf = be16_to_cpu(p->dds_flags);
if (get_ldev(mdev)) {
- dd = drbd_determin_dev_size(mdev, 0);
+ dd = drbd_determin_dev_size(mdev, ddsf);
put_ldev(mdev);
if (dd == dev_size_error)
return FALSE;
@@ -2942,7 +2944,7 @@
if (max_seg_s != queue_max_segment_size(mdev->rq_queue))
drbd_setup_queue_param(mdev, max_seg_s);
- drbd_setup_order_type(mdev, be32_to_cpu(p->queue_order_type));
+ drbd_setup_order_type(mdev, be16_to_cpu(p->queue_order_type));
put_ldev(mdev);
}
@@ -2951,14 +2953,17 @@
drbd_get_capacity(mdev->this_bdev) || ldsc) {
/* we have different sizes, probably peer
* needs to know my new size... */
- drbd_send_sizes(mdev, 0);
+ drbd_send_sizes(mdev, 0, ddsf);
}
if (test_and_clear_bit(RESIZE_PENDING, &mdev->flags) ||
(dd == grew && mdev->state.conn == C_CONNECTED)) {
if (mdev->state.pdsk >= D_INCONSISTENT &&
- mdev->state.disk >= D_INCONSISTENT)
- resync_after_online_grow(mdev);
- else
+ mdev->state.disk >= D_INCONSISTENT) {
+ if (ddsf & DDSF_NO_RESYNC)
+ dev_info(DEV, "Resync of new storage suppressed with --assume-clean\n");
+ else
+ resync_after_online_grow(mdev);
+ } else
set_bit(RESYNC_AFTER_NEG, &mdev->flags);
}
}