From dbae4c73f08b8a7980cc912954ade3d4c1fb6147 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Mon, 14 Apr 2008 14:54:53 -0400 Subject: NFS: Ensure that rpc_run_task() errors are propagated back to the caller Signed-off-by: Trond Myklebust --- fs/nfs/read.c | 23 +++++++++++++++-------- 1 file changed, 15 insertions(+), 8 deletions(-) (limited to 'fs/nfs/read.c') diff --git a/fs/nfs/read.c b/fs/nfs/read.c index 6f9208a549a..16f57e0af99 100644 --- a/fs/nfs/read.c +++ b/fs/nfs/read.c @@ -153,7 +153,7 @@ static void nfs_readpage_release(struct nfs_page *req) /* * Set up the NFS read request struct */ -static void nfs_read_rpcsetup(struct nfs_page *req, struct nfs_read_data *data, +static int nfs_read_rpcsetup(struct nfs_page *req, struct nfs_read_data *data, const struct rpc_call_ops *call_ops, unsigned int count, unsigned int offset) { @@ -202,8 +202,10 @@ static void nfs_read_rpcsetup(struct nfs_page *req, struct nfs_read_data *data, (unsigned long long)data->args.offset); task = rpc_run_task(&task_setup_data); - if (!IS_ERR(task)) - rpc_put_task(task); + if (IS_ERR(task)) + return PTR_ERR(task); + rpc_put_task(task); + return 0; } static void @@ -240,6 +242,7 @@ static int nfs_pagein_multi(struct inode *inode, struct list_head *head, unsigne size_t rsize = NFS_SERVER(inode)->rsize, nbytes; unsigned int offset; int requests = 0; + int ret = 0; LIST_HEAD(list); nfs_list_remove_request(req); @@ -261,6 +264,8 @@ static int nfs_pagein_multi(struct inode *inode, struct list_head *head, unsigne offset = 0; nbytes = count; do { + int ret2; + data = list_entry(list.next, struct nfs_read_data, pages); list_del_init(&data->pages); @@ -268,13 +273,15 @@ static int nfs_pagein_multi(struct inode *inode, struct list_head *head, unsigne if (nbytes < rsize) rsize = nbytes; - nfs_read_rpcsetup(req, data, &nfs_read_partial_ops, + ret2 = nfs_read_rpcsetup(req, data, &nfs_read_partial_ops, rsize, offset); + if (ret == 0) + ret = ret2; offset += rsize; nbytes -= rsize; } while (nbytes != 0); - return 0; + return ret; out_bad: while (!list_empty(&list)) { @@ -292,6 +299,7 @@ static int nfs_pagein_one(struct inode *inode, struct list_head *head, unsigned struct nfs_page *req; struct page **pages; struct nfs_read_data *data; + int ret = -ENOMEM; data = nfs_readdata_alloc(npages); if (!data) @@ -307,11 +315,10 @@ static int nfs_pagein_one(struct inode *inode, struct list_head *head, unsigned } req = nfs_list_entry(data->pages.next); - nfs_read_rpcsetup(req, data, &nfs_read_full_ops, count, 0); - return 0; + return nfs_read_rpcsetup(req, data, &nfs_read_full_ops, count, 0); out_bad: nfs_async_read_error(head); - return -ENOMEM; + return ret; } /* -- cgit v1.2.3