On Tue, 2012-05-15 at 23:38 +0800, Peng Tao wrote:
> Signed-off-by: Peng Tao <tao.peng@xxxxxxx>
> ---
> fs/nfs/direct.c | 3 +++
> 1 files changed, 3 insertions(+), 0 deletions(-)
>
> diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
> index a485560..2cf3b45 100644
> --- a/fs/nfs/direct.c
> +++ b/fs/nfs/direct.c
> @@ -866,6 +866,7 @@ ssize_t nfs_file_direct_read(struct kiocb *iocb, const struct iovec *iov,
> ssize_t retval = -EINVAL;
> struct file *file = iocb->ki_filp;
> struct address_space *mapping = file->f_mapping;
> + struct blk_plug plug;
> size_t count;
>
> count = iov_length(iov, nr_segs);
> @@ -886,7 +887,9 @@ ssize_t nfs_file_direct_read(struct kiocb *iocb, const struct iovec *iov,
>
> task_io_account_read(count);
>
> + blk_start_plug(&plug);
> retval = nfs_direct_read(iocb, iov, nr_segs, pos);
> + blk_finish_plug(&plug);
> if (retval > 0)
> iocb->ki_pos = pos + retval;
>
Ditto. This is not generic...
--
Trond Myklebust
Linux NFS client maintainer
NetApp
Trond.Myklebust@xxxxxxxxxx
www.netapp.com
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