block/drbd/drbd_nl.c

720 			device->ldev->md.uuid[UI_CURRENT] &= ~(u64)1;
733 			      && device->ldev->md.uuid[UI_BITMAP] == 0) || forced)
736 			device->ldev->md.uuid[UI_CURRENT] |=  (u64)1;
807 /* Initializes the md.*_offset members, so we are able to find
832 	unsigned int al_size_sect = bdev->md.al_size_4k * 8;
834 	bdev->md.md_offset = drbd_md_ss(bdev);
836 	switch (bdev->md.meta_dev_idx) {
839 		bdev->md.md_size_sect = MD_128MB_SECT;
840 		bdev->md.al_offset = MD_4kB_SECT;
841 		bdev->md.bm_offset = MD_4kB_SECT + al_size_sect;
845 		bdev->md.md_size_sect = drbd_get_capacity(bdev->md_bdev);
846 		bdev->md.al_offset = MD_4kB_SECT;
847 		bdev->md.bm_offset = MD_4kB_SECT + al_size_sect;
852 		bdev->md.al_offset = -al_size_sect;
863 		bdev->md.md_size_sect = md_size_sect;
865 		bdev->md.bm_offset   = -md_size_sect + MD_4kB_SECT;
943 	struct drbd_md *md = &device->ldev->md;
965 	prev.last_agreed_sect = md->la_size_sect;
966 	prev.md_offset = md->md_offset;
967 	prev.al_offset = md->al_offset;
968 	prev.bm_offset = md->bm_offset;
969 	prev.md_size_sect = md->md_size_sect;
970 	prev.al_stripes = md->al_stripes;
971 	prev.al_stripe_size_4k = md->al_stripe_size_4k;
975 		md->al_stripes = rs->al_stripes;
976 		md->al_stripe_size_4k = rs->al_stripe_size / 4;
977 		md->al_size_4k = (u64)rs->al_stripes * rs->al_stripe_size / 4;
1020 		md->la_size_sect = size;
1025 	la_size_changed = (prev.last_agreed_sect != md->la_size_sect);
1027 	md_moved = prev.md_offset    != md->md_offset
1028 		|| prev.md_size_sect != md->md_size_sect;
1045 		prev_flags = md->flags;
1046 		md->flags |= MDF_FULL_SYNC | MDF_AL_DISABLED;
1052 			 la_size_changed && md_moved ? "size changed and md moved" :
1053 			 la_size_changed ? "size changed" : "md moved");
1060 		md->flags = prev_flags;
1065 				  md->al_stripes, md->al_stripe_size_4k * 4);
1076 		md->la_size_sect = prev.last_agreed_sect;
1077 		md->md_offset = prev.md_offset;
1078 		md->al_offset = prev.al_offset;
1079 		md->bm_offset = prev.bm_offset;
1080 		md->md_size_sect = prev.md_size_sect;
1081 		md->al_stripes = prev.al_stripes;
1082 		md->al_stripe_size_4k = prev.al_stripe_size_4k;
1083 		md->al_size_4k = (u64)prev.al_stripes * prev.al_stripe_size_4k;
1098 	sector_t la_size_sect = bdev->md.la_size_sect; /* last agreed size. */
1416 	unsigned int al_size_4k = bdev->md.al_size_4k;
1586 		device->ldev->md.flags &= ~MDF_AL_DISABLED;
1588 		device->ldev->md.flags |= MDF_AL_DISABLED;
1774 	spin_lock_init(&nbc->md.uuid_lock);
1862 		drbd_warn(device, "refusing attach: md-device too small, "
1916             (device->ed_uuid & ~((u64)1)) != (nbc->md.uuid[UI_CURRENT] & ~((u64)1))) {
1932 	unsigned long long eff = nbc->md.la_size_sect;
2075 		device->ldev->md.flags &= ~MDF_AL_DISABLED;
2077 		device->ldev->md.flags |= MDF_AL_DISABLED;
2104 		device->ldev->md.uuid[UI_CURRENT] |=  (u64)1;
2106 		device->ldev->md.uuid[UI_CURRENT] &= ~(u64)1;
2793 	rs.al_stripes = device->ldev->md.al_stripes;
2794 	rs.al_stripe_size = device->ldev->md.al_stripe_size_4k * 4;
2831 	if (device->ldev->md.al_stripes != rs.al_stripes ||
2832 	    device->ldev->md.al_stripe_size_4k != rs.al_stripe_size / 4) {
3300 		struct drbd_md *md = &device->ldev->md;
3304 		spin_lock_irq(&md->uuid_lock);
3305 		s->dev_current_uuid = md->uuid[UI_CURRENT];
3308 			history_uuids[n] = md->uuid[UI_HISTORY_START + n];
3312 		spin_unlock_irq(&md->uuid_lock);
3314 		s->dev_disk_flags = md->flags;
3573 		struct drbd_md *md = &device->ldev->md;
3575 		spin_lock_irq(&md->uuid_lock);
3576 		s->peer_dev_bitmap_uuid = md->uuid[UI_BITMAP];
3577 		spin_unlock_irq(&md->uuid_lock);
3772 		spin_lock_irq(&device->ldev->md.uuid_lock);
3773 		err = nla_put(skb, T_uuids, sizeof(si->uuids), device->ldev->md.uuid);
3774 		spin_unlock_irq(&device->ldev->md.uuid_lock);
3779 		if (nla_put_u32(skb, T_disk_flags, device->ldev->md.flags) ||
4139 	    device->ldev->md.uuid[UI_CURRENT] == UUID_JUST_CREATED && args.clear_bm) {