Christoph Hellwig <milosz@xxxxxxxxx> writes:
Hrm, you're not Christoph...
> Acked-by: Milosz Tanski <milosz@xxxxxxxxx>
> ---
> fs/ceph/file.c | 2 ++
> fs/cifs/file.c | 6 ++++++
> fs/nfs/file.c | 5 ++++-
> fs/ocfs2/file.c | 6 ++++++
> fs/pipe.c | 3 ++-
> fs/read_write.c | 17 +++++++++++------
> fs/xfs/xfs_file.c | 4 ++++
> mm/shmem.c | 4 ++++
> 8 files changed, 39 insertions(+), 8 deletions(-)
>
> diff --git a/fs/ceph/file.c b/fs/ceph/file.c
> index 4776257..b62e3a5 100644
> --- a/fs/ceph/file.c
> +++ b/fs/ceph/file.c
> @@ -808,6 +808,8 @@ again:
> if ((got & (CEPH_CAP_FILE_CACHE|CEPH_CAP_FILE_LAZYIO)) == 0 ||
> (iocb->ki_filp->f_flags & O_DIRECT) ||
> (fi->flags & CEPH_F_SYNC)) {
> + if (flags & O_NONBLOCK)
> + return -EAGAIN;
Again, the right return value for the O_DIRECT case is EINVAL.
> diff --git a/fs/nfs/file.c b/fs/nfs/file.c
> index 4072f3a..116bed2 100644
> --- a/fs/nfs/file.c
> +++ b/fs/nfs/file.c
> @@ -170,8 +170,11 @@ nfs_file_read(struct kiocb *iocb, struct iov_iter *to, int flags)
> struct inode *inode = file_inode(iocb->ki_filp);
> ssize_t result;
>
> - if (iocb->ki_filp->f_flags & O_DIRECT)
> + if (iocb->ki_filp->f_flags & O_DIRECT) {
> + if (flags & O_NONBLOCK)
> + return -EAGAIN;
> return nfs_file_direct_read(iocb, to, iocb->ki_pos, true);
> + }
And here. I stopped looking for that case at this point.
Cheers,
Jeff
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