tree 1f6499d6a822195a74cb8ed7f284013654293cbf
parent bc8a309e88a86205fc3e17f06e42a2e56fc6f807
author Weston Andros Adamson <dros@primarydata.com> 1407510055 -0400
committer Trond Myklebust <trond.myklebust@primarydata.com> 1408745083 -0400

nfs: use blocking page_group_lock in add_request

__nfs_pageio_add_request was calling nfs_page_group_lock nonblocking, but
this can return -EAGAIN which would end up passing -EIO to the application.

There is no reason not to block in this path, so change the two calls to
do so. Also, there is no need to check the return value of
nfs_page_group_lock when nonblock=false, so remove the error handling code.

Signed-off-by: Weston Andros Adamson <dros@primarydata.com>
Reviewed-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>