int w_io_error(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
{
struct drbd_request *req = container_of(w, struct drbd_request, w);
/* NOTE: mdev->ldev can be NULL by the time we get here! */
/* D_ASSERT(mdev->ldev->dc.on_io_error != EP_PASS_ON); */
/* the only way this callback is scheduled is from _req_may_be_done,
* when it is done and had a local write error, see comments there */
drbd_req_free(req);
return TRUE;
}
static void _req_is_done(struct drbd_conf *mdev, struct drbd_request *req, const int rw)
{
const unsigned long s = req->rq_state;
/* remove it from the transfer log.
* well, only if it had been there in the first
* place... if it had not (local only or conflicting
* and never sent), it should still be "empty" as
* initialized in drbd_req_new(), so we can list_del() it
* here unconditionally */
list_del(&req->tl_requests);
/* if it was a write, we may have to set the corresponding
* bit(s) out-of-sync first. If it had a local part, we need to
* release the reference to the activity log. */
if (rw == WRITE) {
/* Set out-of-sync unless both OK flags are set
* (local only or remote failed).
* Other places where we set out-of-sync:
* READ with local io-error */
if (!(s & RQ_NET_OK) || !(s & RQ_LOCAL_OK))
drbd_set_out_of_sync(mdev, req->sector, req->size);
if ((s & RQ_NET_OK) && (s & RQ_LOCAL_OK) && (s & RQ_NET_SIS))
drbd_set_in_sync(mdev, req->sector, req->size);
/* one might be tempted to move the drbd_al_complete_io
* to the local io completion callback drbd_endio_pri.
* but, if this was a mirror write, we may only
* drbd_al_complete_io after this is RQ_NET_DONE,
* otherwise the extent could be dropped from the al
* before it has actually been written on the peer.
* if we crash before our peer knows about the request,
* but after the extent has been dropped from the al,
* we would forget to resync the corresponding extent.
*/
if (s & RQ_LOCAL_MASK) {
if (get_ldev_if_state(mdev, D_FAILED)) {
if (s & RQ_IN_ACT_LOG)
drbd_al_complete_io(mdev, req->sector);
put_ldev(mdev);
} else if (__ratelimit(&drbd_ratelimit_state)) {
dev_warn(DEV, "Should have called drbd_al_complete_io(, %llu), "
"but my Disk seems to have failed :(\n",
(unsigned long long) req->sector);
}
}
}
drbd_req_free(req);
}
static void _req_is_done(struct drbd_conf *mdev, struct drbd_request *req, const int rw)
{
const unsigned long s = req->rq_state;
list_del(&req->tl_requests);
if (rw == WRITE) {
if (!(s & RQ_NET_OK) || !(s & RQ_LOCAL_OK))
drbd_set_out_of_sync(mdev, req->sector, req->size);
if ((s & RQ_NET_OK) && (s & RQ_LOCAL_OK) && (s & RQ_NET_SIS))
drbd_set_in_sync(mdev, req->sector, req->size);
/* one might be tempted to move the drbd_al_complete_io
* to the local io completion callback drbd_endio_pri.
* but, if this was a mirror write, we may only
* drbd_al_complete_io after this is RQ_NET_DONE,
* otherwise the extent could be dropped from the al
* before it has actually been written on the peer.
* if we crash before our peer knows about the request,
* but after the extent has been dropped from the al,
* we would forget to resync the corresponding extent.
*/
if (s & RQ_LOCAL_MASK) {
if (get_ldev_if_state(mdev, D_FAILED)) {
if (s & RQ_IN_ACT_LOG)
drbd_al_complete_io(mdev, req->sector);
put_ldev(mdev);
} else if (__ratelimit(&drbd_ratelimit_state)) {
dev_warn(DEV, "Should have called drbd_al_complete_io(, %llu), "
"but my Disk seems to have failed :(\n",
(unsigned long long) req->sector);
}
}
}
drbd_req_free(req);
}
