RETURN(0);
}
-static int llu_glimpse_callback(struct ldlm_lock *lock, void *reqp)
-{
- struct ptlrpc_request *req = reqp;
- struct inode *inode = llu_inode_from_lock(lock);
- struct llu_inode_info *lli;
- struct ost_lvb *lvb;
- struct lov_stripe_md *lsm;
- int rc, stripe = 0;
- ENTRY;
-
- if (inode == NULL)
- GOTO(out, rc = -ELDLM_NO_LOCK_DATA);
- lli = llu_i2info(inode);
- if (lli == NULL)
- GOTO(iput, rc = -ELDLM_NO_LOCK_DATA);
-
- req_capsule_extend(&req->rq_pill, &RQF_LDLM_GL_CALLBACK);
- if (exp_connect_lvb_type(req->rq_export))
- req_capsule_set_size(&req->rq_pill, &RMF_DLM_LVB, RCL_SERVER,
- sizeof(*lvb));
- else
- req_capsule_set_size(&req->rq_pill, &RMF_DLM_LVB, RCL_SERVER,
- sizeof(struct ost_lvb_v1));
- rc = req_capsule_server_pack(&req->rq_pill);
- if (rc) {
- CERROR("failed pack reply: %d\n", rc);
- GOTO(iput, rc);
- }
-
- lsm = ccc_inode_lsm_get(inode);
- if (lsm == NULL)
- GOTO(iput, rc = -ELDLM_NO_LOCK_DATA);
-
- /* First, find out which stripe index this lock corresponds to. */
- stripe = llu_lock_to_stripe_offset(llu_i2obdexp(inode), lsm, lock);
-
- lvb = req_capsule_server_get(&req->rq_pill, &RMF_DLM_LVB);
- lvb->lvb_size = lsm->lsm_oinfo[stripe]->loi_kms;
- ccc_inode_lsm_put(inode, lsm);
-
- LDLM_DEBUG(lock, "i_size: "LPU64" -> stripe number %u -> kms "LPU64,
- (__u64)llu_i2stat(inode)->st_size, stripe,lvb->lvb_size);
- iput:
- I_RELE(inode);
- out:
- /* These errors are normal races, so we don't want to fill the console
- * with messages by calling ptlrpc_error() */
- if (rc == -ELDLM_NO_LOCK_DATA)
- lustre_pack_reply(req, 1, NULL, NULL);
-
- req->rq_status = rc;
- return rc;
-}
-
int llu_merge_lvb(const struct lu_env *env, struct inode *inode)
{
struct llu_inode_info *lli = llu_i2info(inode);
RETURN(rc);
}
-int llu_extent_lock(struct ll_file_data *fd, struct inode *inode,
- struct lov_stripe_md *lsm, int mode,
- ldlm_policy_data_t *policy, struct lustre_handle *lockh,
- int ast_flags)
-{
- struct llu_sb_info *sbi = llu_i2sbi(inode);
- struct intnl_stat *st = llu_i2stat(inode);
- struct ldlm_enqueue_info einfo = { 0 };
- struct obd_info oinfo = { { { 0 } } };
- struct ost_lvb lvb;
- int rc;
- ENTRY;
-
- LASSERT(!lustre_handle_is_used(lockh));
- CLASSERT(ELDLM_OK == 0);
-
- /* XXX phil: can we do this? won't it screw the file size up? */
- if ((fd && (fd->fd_flags & LL_FILE_IGNORE_LOCK)) ||
- (sbi->ll_flags & LL_SBI_NOLCK) || mode == LCK_NL)
- RETURN(0);
-
- CDEBUG(D_DLMTRACE, "Locking inode "LPU64", start "LPU64" end "LPU64"\n",
- (__u64)st->st_ino, policy->l_extent.start,
- policy->l_extent.end);
-
- einfo.ei_type = LDLM_EXTENT;
- einfo.ei_mode = mode;
- einfo.ei_cb_bl = llu_extent_lock_cancel_cb;
- einfo.ei_cb_cp = ldlm_completion_ast;
- einfo.ei_cb_gl = llu_glimpse_callback;
- einfo.ei_cbdata = inode;
-
- oinfo.oi_policy = *policy;
- oinfo.oi_lockh = lockh;
- oinfo.oi_md = lsm;
- oinfo.oi_flags = ast_flags;
-
- rc = obd_enqueue(sbi->ll_dt_exp, &oinfo, &einfo, NULL);
- *policy = oinfo.oi_policy;
- if (rc > 0)
- rc = -EIO;
-
- inode_init_lvb(inode, &lvb);
- obd_merge_lvb(sbi->ll_dt_exp, lsm, &lvb, 1);
- if (policy->l_extent.start == 0 &&
- policy->l_extent.end == OBD_OBJECT_EOF)
- st->st_size = lvb.lvb_size;
-
- if (rc == 0) {
- st->st_mtime = lvb.lvb_mtime;
- st->st_atime = lvb.lvb_atime;
- st->st_ctime = lvb.lvb_ctime;
- }
-
- RETURN(rc);
-}
-
-int llu_extent_unlock(struct ll_file_data *fd, struct inode *inode,
- struct lov_stripe_md *lsm, int mode,
- struct lustre_handle *lockh)
-{
- struct llu_sb_info *sbi = llu_i2sbi(inode);
- int rc;
- ENTRY;
-
- CLASSERT(ELDLM_OK == 0);
-
- /* XXX phil: can we do this? won't it screw the file size up? */
- if ((fd && (fd->fd_flags & LL_FILE_IGNORE_LOCK)) ||
- (sbi->ll_flags & LL_SBI_NOLCK) || mode == LCK_NL)
- RETURN(0);
-
- rc = obd_cancel(sbi->ll_dt_exp, lsm, mode, lockh);
-
- RETURN(rc);
-}
-
static
ssize_t llu_file_prwv(const struct iovec *iovec, int iovlen,
_SYSIO_OFF_T pos, ssize_t len,