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path: root/drivers/block/drbd/drbd_actlog.c
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Diffstat (limited to 'drivers/block/drbd/drbd_actlog.c')
-rw-r--r--drivers/block/drbd/drbd_actlog.c61
1 files changed, 40 insertions, 21 deletions
diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c
index 10459a145062..0a1aaf8c24c4 100644
--- a/drivers/block/drbd/drbd_actlog.c
+++ b/drivers/block/drbd/drbd_actlog.c
@@ -137,19 +137,19 @@ void wait_until_done_or_force_detached(struct drbd_device *device, struct drbd_b
static int _drbd_md_sync_page_io(struct drbd_device *device,
struct drbd_backing_dev *bdev,
- sector_t sector, int rw)
+ sector_t sector, int op)
{
struct bio *bio;
/* we do all our meta data IO in aligned 4k blocks. */
const int size = 4096;
- int err;
+ int err, op_flags = 0;
device->md_io.done = 0;
device->md_io.error = -ENODEV;
- if ((rw & WRITE) && !test_bit(MD_NO_FUA, &device->flags))
- rw |= REQ_FUA | REQ_FLUSH;
- rw |= REQ_SYNC | REQ_NOIDLE;
+ if ((op == REQ_OP_WRITE) && !test_bit(MD_NO_FUA, &device->flags))
+ op_flags |= REQ_FUA | REQ_PREFLUSH;
+ op_flags |= REQ_SYNC | REQ_NOIDLE;
bio = bio_alloc_drbd(GFP_NOIO);
bio->bi_bdev = bdev->md_bdev;
@@ -159,9 +159,9 @@ static int _drbd_md_sync_page_io(struct drbd_device *device,
goto out;
bio->bi_private = device;
bio->bi_end_io = drbd_md_endio;
- bio->bi_rw = rw;
+ bio_set_op_attrs(bio, op, op_flags);
- if (!(rw & WRITE) && device->state.disk == D_DISKLESS && device->ldev == NULL)
+ if (op != REQ_OP_WRITE && device->state.disk == D_DISKLESS && device->ldev == NULL)
/* special case, drbd_md_read() during drbd_adm_attach(): no get_ldev */
;
else if (!get_ldev_if_state(device, D_ATTACHING)) {
@@ -174,10 +174,10 @@ static int _drbd_md_sync_page_io(struct drbd_device *device,
bio_get(bio); /* one bio_put() is in the completion handler */
atomic_inc(&device->md_io.in_use); /* drbd_md_put_buffer() is in the completion handler */
device->md_io.submit_jif = jiffies;
- if (drbd_insert_fault(device, (rw & WRITE) ? DRBD_FAULT_MD_WR : DRBD_FAULT_MD_RD))
+ if (drbd_insert_fault(device, (op == REQ_OP_WRITE) ? DRBD_FAULT_MD_WR : DRBD_FAULT_MD_RD))
bio_io_error(bio);
else
- submit_bio(rw, bio);
+ submit_bio(bio);
wait_until_done_or_force_detached(device, bdev, &device->md_io.done);
if (!bio->bi_error)
err = device->md_io.error;
@@ -188,7 +188,7 @@ static int _drbd_md_sync_page_io(struct drbd_device *device,
}
int drbd_md_sync_page_io(struct drbd_device *device, struct drbd_backing_dev *bdev,
- sector_t sector, int rw)
+ sector_t sector, int op)
{
int err;
D_ASSERT(device, atomic_read(&device->md_io.in_use) == 1);
@@ -197,19 +197,21 @@ int drbd_md_sync_page_io(struct drbd_device *device, struct drbd_backing_dev *bd
dynamic_drbd_dbg(device, "meta_data io: %s [%d]:%s(,%llus,%s) %pS\n",
current->comm, current->pid, __func__,
- (unsigned long long)sector, (rw & WRITE) ? "WRITE" : "READ",
+ (unsigned long long)sector, (op == REQ_OP_WRITE) ? "WRITE" : "READ",
(void*)_RET_IP_ );
if (sector < drbd_md_first_sector(bdev) ||
sector + 7 > drbd_md_last_sector(bdev))
drbd_alert(device, "%s [%d]:%s(,%llus,%s) out of range md access!\n",
current->comm, current->pid, __func__,
- (unsigned long long)sector, (rw & WRITE) ? "WRITE" : "READ");
+ (unsigned long long)sector,
+ (op == REQ_OP_WRITE) ? "WRITE" : "READ");
- err = _drbd_md_sync_page_io(device, bdev, sector, rw);
+ err = _drbd_md_sync_page_io(device, bdev, sector, op);
if (err) {
drbd_err(device, "drbd_md_sync_page_io(,%llus,%s) failed with error %d\n",
- (unsigned long long)sector, (rw & WRITE) ? "WRITE" : "READ", err);
+ (unsigned long long)sector,
+ (op == REQ_OP_WRITE) ? "WRITE" : "READ", err);
}
return err;
}
@@ -256,7 +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 */
@@ -339,6 +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
@@ -768,10 +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);
@@ -830,6 +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.
@@ -845,11 +864,11 @@ int __drbd_change_sync(struct drbd_device *device, sector_t sector, int size,
unsigned long count = 0;
sector_t esector, nr_sectors;
- /* This would be an empty REQ_FLUSH, be silent. */
+ /* This would be an empty REQ_PREFLUSH, be silent. */
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);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-20 20:00:43 +0000