Sync up feature bits and enable CEPH_FEATURE_CRUSH_V4.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

Signed-off-by: Yan, Zheng <zyan@redhat.com>

No need to do single_open()'s job ourselves.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

Add a client_options attribute for showing libceph options.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

Split ceph_show_options() into two pieces and move the piece
responsible for printing client (libceph) options into net/ceph.  This
way people adding a libceph option wouldn't have to remember to update
code in fs/ceph.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

To avoid possible interleaving, add missing '\n' to formats.

Convert pr_warning to pr_warn while there.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

TCP_NODELAY socket option set on connection sockets,
disables Nagle’s algorithm and improves latency characteristics.
tcp_nodelay(default)/notcp_nodelay option flags provided to
enable/disable setting the socket option.

Signed-off-by: Chaitanya Huilgol <chaitanya.huilgol@sandisk.com>
[idryomov@redhat.com: NO_TCP_NODELAY -> TCP_NODELAY, minor adjustments]
Signed-off-by: Ilya Dryomov <idryomov@redhat.com>

mark session as readonly and wake up all cap waiters.

Signed-off-by: Yan, Zheng <zyan@redhat.com>

On Mon, Dec 22, 2014 at 5:35 PM, Sage Weil <sage@newdream.net> wrote:
> On Mon, 22 Dec 2014, Ilya Dryomov wrote:
>> Actually, pool op stuff has been unused for over two years - looks like
>> it was added for rbd create_snap and that got ripped out in 2012.  It's
>> unlikely we'd ever need to manage pools or snaps from the kernel client
>> so I think it makes sense to nuke it.  Sage?
>
> Yep!

Signed-off-by: Ilya Dryomov <idryomov@redhat.com>

The only real issue is the one in auth_x.c and it came with
3.19-rc1 merge.

Signed-off-by: Ilya Dryomov <idryomov@redhat.com>