-typedef ssize_t llu_file_piov_t(const struct iovec *iovec, int iovlen,
- _SYSIO_OFF_T pos, ssize_t len,
- void *private);
-
-size_t llap_cookie_size;
-
-static int llu_lock_to_stripe_offset(struct obd_export *exp,
- struct lov_stripe_md *lsm,
- struct ldlm_lock *lock)
-{
- struct {
- char name[16];
- struct ldlm_lock *lock;
- } key = { .name = KEY_LOCK_TO_STRIPE, .lock = lock };
- __u32 stripe, vallen = sizeof(stripe);
- int rc;
- ENTRY;
-
- if (lsm == NULL || lsm->lsm_stripe_count == 1)
- RETURN(0);
-
- /* get our offset in the lov */
- rc = obd_get_info(NULL, exp, sizeof(key), &key, &vallen, &stripe, lsm);
- if (rc != 0) {
- CERROR("obd_get_info: rc = %d\n", rc);
- LBUG();
- }
- LASSERT(stripe < lsm->lsm_stripe_count);
- RETURN(stripe);
-}
-
-int llu_extent_lock_cancel_cb(struct ldlm_lock *lock,
- struct ldlm_lock_desc *new, void *data,
- int flag)
-{
- struct lustre_handle lockh = { 0 };
- int rc;
- ENTRY;
-
- if ((unsigned long)data > 0 && (unsigned long)data < 0x1000) {
- LDLM_ERROR(lock, "cancelling lock with bad data %p", data);
- LBUG();
- }
-
- switch (flag) {
- case LDLM_CB_BLOCKING:
- ldlm_lock2handle(lock, &lockh);
- rc = ldlm_cli_cancel(&lockh, 0);
- if (rc != ELDLM_OK)
- CERROR("ldlm_cli_cancel failed: %d\n", rc);
- break;
- case LDLM_CB_CANCELING: {
- struct inode *inode;
- struct llu_inode_info *lli;
- struct lov_stripe_md *lsm;
- __u32 stripe;
- __u64 kms;
-
- /* This lock wasn't granted, don't try to evict pages */
- if (lock->l_req_mode != lock->l_granted_mode)
- RETURN(0);
-
- inode = llu_inode_from_lock(lock);
- if (!inode)
- RETURN(0);
- lli= llu_i2info(inode);
- if (!lli)
- goto iput;
- if (!lli->lli_has_smd)
- goto iput;
-
- lsm = ccc_inode_lsm_get(inode);
- if (lsm == NULL)
- goto iput;
-
- stripe = llu_lock_to_stripe_offset(llu_i2obdexp(inode),
- lsm, lock);
- lock_res_and_lock(lock);
- kms = ldlm_extent_shift_kms(lock,
- lsm->lsm_oinfo[stripe]->loi_kms);
- unlock_res_and_lock(lock);
- if (lsm->lsm_oinfo[stripe]->loi_kms != kms)
- LDLM_DEBUG(lock, "updating kms from "LPU64" to "LPU64,
- lsm->lsm_oinfo[stripe]->loi_kms, kms);
- loi_kms_set(lsm->lsm_oinfo[stripe], kms);
- ccc_inode_lsm_put(inode, lsm);
-iput:
- I_RELE(inode);
- break;
- }
- default:
- LBUG();
- }
-
- RETURN(0);
-}
-