diff options
Diffstat (limited to 'fs/nfs/read.c')
-rw-r--r-- | fs/nfs/read.c | 38 |
1 files changed, 21 insertions, 17 deletions
diff --git a/fs/nfs/read.c b/fs/nfs/read.c index 20a02932406..1961a192f1c 100644 --- a/fs/nfs/read.c +++ b/fs/nfs/read.c @@ -320,6 +320,19 @@ static const struct nfs_pgio_completion_ops nfs_async_read_completion_ops = { .completion = nfs_read_completion, }; +static void nfs_pagein_error(struct nfs_pageio_descriptor *desc, + struct nfs_pgio_header *hdr) +{ + set_bit(NFS_IOHDR_REDO, &hdr->flags); + while (!list_empty(&hdr->rpc_list)) { + struct nfs_read_data *data = list_first_entry(&hdr->rpc_list, + struct nfs_read_data, list); + list_del(&data->list); + nfs_readdata_release(data); + } + desc->pg_completion_ops->error_cleanup(&desc->pg_list); +} + /* * Generate multiple requests to fill a single page. * @@ -342,33 +355,27 @@ static int nfs_pagein_multi(struct nfs_pageio_descriptor *desc, size_t rsize = desc->pg_bsize, nbytes; unsigned int offset; - nfs_list_remove_request(req); - nfs_list_add_request(req, &hdr->pages); - offset = 0; nbytes = desc->pg_count; do { size_t len = min(nbytes,rsize); data = nfs_readdata_alloc(hdr, 1); - if (!data) - goto out_bad; + if (!data) { + nfs_pagein_error(desc, hdr); + return -ENOMEM; + } data->pages.pagevec[0] = page; nfs_read_rpcsetup(data, len, offset); list_add(&data->list, &hdr->rpc_list); nbytes -= len; offset += len; } while (nbytes != 0); + + nfs_list_remove_request(req); + nfs_list_add_request(req, &hdr->pages); desc->pg_rpc_callops = &nfs_read_common_ops; return 0; -out_bad: - while (!list_empty(&hdr->rpc_list)) { - data = list_first_entry(&hdr->rpc_list, struct nfs_read_data, list); - list_del(&data->list); - nfs_readdata_release(data); - } - desc->pg_completion_ops->error_cleanup(&hdr->pages); - return -ENOMEM; } static int nfs_pagein_one(struct nfs_pageio_descriptor *desc, @@ -378,12 +385,11 @@ static int nfs_pagein_one(struct nfs_pageio_descriptor *desc, struct page **pages; struct nfs_read_data *data; struct list_head *head = &desc->pg_list; - int ret = 0; data = nfs_readdata_alloc(hdr, nfs_page_array_len(desc->pg_base, desc->pg_count)); if (!data) { - desc->pg_completion_ops->error_cleanup(head); + nfs_pagein_error(desc, hdr); return -ENOMEM; } @@ -427,8 +433,6 @@ static int nfs_generic_pg_readpages(struct nfs_pageio_descriptor *desc) if (ret == 0) ret = nfs_do_multiple_reads(&hdr->rpc_list, desc->pg_rpc_callops); - else - set_bit(NFS_IOHDR_REDO, &hdr->flags); if (atomic_dec_and_test(&hdr->refcnt)) hdr->completion_ops->completion(hdr); return ret; |