static const struct rpc_call_ops nfs_read_full_ops;
static struct kmem_cache *nfs_rdata_cachep;
-static mempool_t *nfs_rdata_mempool;
-
-#define MIN_POOL_READ (32)
struct nfs_read_data *nfs_readdata_alloc(unsigned int pagecount)
{
- struct nfs_read_data *p = mempool_alloc(nfs_rdata_mempool, GFP_KERNEL);
+ struct nfs_read_data *p;
+ p = kmem_cache_zalloc(nfs_rdata_cachep, GFP_KERNEL);
if (p) {
- memset(p, 0, sizeof(*p));
INIT_LIST_HEAD(&p->pages);
p->npages = pagecount;
if (pagecount <= ARRAY_SIZE(p->page_array))
else {
p->pagevec = kcalloc(pagecount, sizeof(struct page *), GFP_KERNEL);
if (!p->pagevec) {
- mempool_free(p, nfs_rdata_mempool);
+ kmem_cache_free(nfs_rdata_cachep, p);
p = NULL;
}
}
{
if (p && (p->pagevec != &p->page_array[0]))
kfree(p->pagevec);
- mempool_free(p, nfs_rdata_mempool);
+ kmem_cache_free(nfs_rdata_cachep, p);
}
void nfs_readdata_release(struct nfs_read_data *rdata)
while (!list_empty(head)) {
req = nfs_list_entry(head->next);
nfs_list_remove_request(req);
- SetPageError(req->wb_page);
nfs_readpage_release(req);
}
}
offset += len;
} while(nbytes != 0);
atomic_set(&req->wb_complete, requests);
- ClearPageError(page);
desc->pg_rpc_callops = &nfs_read_partial_ops;
return ret;
out_bad:
list_del(&data->list);
nfs_readdata_free(data);
}
- SetPageError(page);
nfs_readpage_release(req);
return -ENOMEM;
}
req = nfs_list_entry(head->next);
nfs_list_remove_request(req);
nfs_list_add_request(req, &data->pages);
- ClearPageError(req->wb_page);
*pages++ = req->wb_page;
}
req = nfs_list_entry(data->pages.next);
argp->offset += resp->count;
argp->pgbase += resp->count;
argp->count -= resp->count;
- nfs_restart_rpc(task, NFS_SERVER(data->inode)->nfs_client);
+ rpc_restart_call_prepare(task);
}
/*
int status = data->task.tk_status;
if (status < 0)
- SetPageError(page);
+ set_bit(PG_PARTIAL_READ_FAILED, &req->wb_flags);
if (atomic_dec_and_test(&req->wb_complete)) {
- if (!PageError(page))
+ if (!test_bit(PG_PARTIAL_READ_FAILED, &req->wb_flags))
SetPageUptodate(page);
nfs_readpage_release(req);
}
static void nfs_readpage_release_full(void *calldata)
{
struct nfs_read_data *data = calldata;
+ struct nfs_pageio_descriptor pgio;
+ if (data->pnfs_error) {
+ nfs_pageio_init_read_mds(&pgio, data->inode);
+ pgio.pg_recoalesce = 1;
+ }
while (!list_empty(&data->pages)) {
struct nfs_page *req = nfs_list_entry(data->pages.next);
nfs_list_remove_request(req);
- nfs_readpage_release(req);
+ if (!data->pnfs_error)
+ nfs_readpage_release(req);
+ else
+ nfs_pageio_add_request(&pgio, req);
}
+ if (data->pnfs_error)
+ nfs_pageio_complete(&pgio);
nfs_readdata_release(calldata);
}
return 0;
out_error:
error = PTR_ERR(new);
- SetPageError(page);
out_unlock:
unlock_page(page);
return error;
if (nfs_rdata_cachep == NULL)
return -ENOMEM;
- nfs_rdata_mempool = mempool_create_slab_pool(MIN_POOL_READ,
- nfs_rdata_cachep);
- if (nfs_rdata_mempool == NULL)
- return -ENOMEM;
-
return 0;
}
void nfs_destroy_readpagecache(void)
{
- mempool_destroy(nfs_rdata_mempool);
kmem_cache_destroy(nfs_rdata_cachep);
}