diff options
Diffstat (limited to 'drivers/block/drbd/drbd_actlog.c')
| -rw-r--r-- | drivers/block/drbd/drbd_actlog.c | 29 |
1 files changed, 23 insertions, 6 deletions
diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c index d524973f94b3..0a1aaf8c24c4 100644 --- a/drivers/block/drbd/drbd_actlog.c +++ b/drivers/block/drbd/drbd_actlog.c @@ -258,7 +258,7 @@ bool drbd_al_begin_io_fastpath(struct drbd_device *device, struct drbd_interval unsigned first = i->sector >> (AL_EXTENT_SHIFT-9); unsigned last = i->size == 0 ? first : (i->sector + (i->size >> 9) - 1) >> (AL_EXTENT_SHIFT-9); - D_ASSERT(device, (unsigned)(last - first) <= 1); + D_ASSERT(device, first <= last); D_ASSERT(device, atomic_read(&device->local_cnt) > 0); /* FIXME figure out a fast path for bios crossing AL extent boundaries */ @@ -341,6 +341,8 @@ static int __al_write_transaction(struct drbd_device *device, struct al_transact i = 0; + drbd_bm_reset_al_hints(device); + /* Even though no one can start to change this list * once we set the LC_LOCKED -- from drbd_al_begin_io(), * lc_try_lock_for_transaction() --, someone may still @@ -770,10 +772,18 @@ static bool lazy_bitmap_update_due(struct drbd_device *device) static void maybe_schedule_on_disk_bitmap_update(struct drbd_device *device, bool rs_done) { - if (rs_done) - set_bit(RS_DONE, &device->flags); - /* and also set RS_PROGRESS below */ - else if (!lazy_bitmap_update_due(device)) + if (rs_done) { + struct drbd_connection *connection = first_peer_device(device)->connection; + if (connection->agreed_pro_version <= 95 || + is_sync_target_state(device->state.conn)) + set_bit(RS_DONE, &device->flags); + /* and also set RS_PROGRESS below */ + + /* Else: rather wait for explicit notification via receive_state, + * to avoid uuids-rotated-too-fast causing full resync + * in next handshake, in case the replication link breaks + * at the most unfortunate time... */ + } else if (!lazy_bitmap_update_due(device)) return; drbd_device_post_work(device, RS_PROGRESS); @@ -832,6 +842,13 @@ static int update_sync_bits(struct drbd_device *device, return count; } +static bool plausible_request_size(int size) +{ + return size > 0 + && size <= DRBD_MAX_BATCH_BIO_SIZE + && IS_ALIGNED(size, 512); +} + /* clear the bit corresponding to the piece of storage in question: * size byte of data starting from sector. Only clear a bits of the affected * one ore more _aligned_ BM_BLOCK_SIZE blocks. @@ -851,7 +868,7 @@ int __drbd_change_sync(struct drbd_device *device, sector_t sector, int size, if ((mode == SET_OUT_OF_SYNC) && size == 0) return 0; - if (size <= 0 || !IS_ALIGNED(size, 512) || size > DRBD_MAX_DISCARD_SIZE) { + if (!plausible_request_size(size)) { drbd_err(device, "%s: sector=%llus size=%d nonsense!\n", drbd_change_sync_fname[mode], (unsigned long long)sector, size); |