Merge branch 'for-4.1/drivers' of git://git.kernel.dk/linux-block

Pull block driver updates from Jens Axboe:
 "This is the block driver pull request for 4.1.  As with the core bits,
  this is a relatively slow round.  This pull request contains:

   - Various fixes and cleanups for NVMe, from Alexey Khoroshilov, Chong
     Yuan, myself, Keith Busch, and Murali Iyer.

   - Documentation and code cleanups for nbd from Markus Pargmann.

   - Change of brd maintainer to me, from Ross Zwisler.  At least the
     email doesn't bounce anymore then.

   - Two xen-blkback fixes from Tao Chen"

* 'for-4.1/drivers' of git://git.kernel.dk/linux-block: (23 commits)
  NVMe: Meta data handling through submit io ioctl
  NVMe: Add translation for block limits
  NVMe: Remove check for null
  NVMe: Fix error handling of class_create("nvme")
  xen-blkback: define pr_fmt macro to avoid the duplication of DRV_PFX
  xen-blkback: enlarge the array size of blkback name
  nbd: Return error pointer directly
  nbd: Return error code directly
  nbd: Remove fixme that was already fixed
  nbd: Restructure debugging prints
  nbd: Fix device bytesize type
  nbd: Replace kthread_create with kthread_run
  nbd: Remove kernel internal header
  Documentation: nbd: Add list of module parameters
  Documentation: nbd: Reformat to allow more documentation
  NVMe: increase depth of admin queue
  nvme: Fix PRP list calculation for non-4k system page size
  NVMe: Fix blk-mq hot cpu notification
  NVMe: embedded iod mask cleanup
  NVMe: Freeze admin queue on device failure
  ...

1 files changed, 31 insertions, 17 deletions

diff --git a/Documentation/blockdev/nbd.txt b/Documentation/blockdev/nbd.txt
index 271e607304da..db242ea2bce8 100644
--- a/Documentation/blockdev/nbd.txt
+++ b/Documentation/blockdev/nbd.txt
@@ -1,17 +1,31 @@
-                      Network Block Device (TCP version)
-                                       
-   What is it: With this compiled in the kernel (or as a module), Linux
-   can use a remote server as one of its block devices. So every time
-   the client computer wants to read, e.g., /dev/nb0, it sends a
-   request over TCP to the server, which will reply with the data read.
-   This can be used for stations with low disk space (or even diskless)
-   to borrow disk space from another computer.
-   Unlike NFS, it is possible to put any filesystem on it, etc.
-
-   For more information, or to download the nbd-client and nbd-server
-   tools, go to http://nbd.sf.net/.
-
-   The nbd kernel module need only be installed on the client
-   system, as the nbd-server is completely in userspace. In fact,
-   the nbd-server has been successfully ported to other operating
-   systems, including Windows.
+Network Block Device (TCP version)
+==================================
+
+1) Overview
+-----------
+
+What is it: With this compiled in the kernel (or as a module), Linux
+can use a remote server as one of its block devices. So every time
+the client computer wants to read, e.g., /dev/nb0, it sends a
+request over TCP to the server, which will reply with the data read.
+This can be used for stations with low disk space (or even diskless)
+to borrow disk space from another computer.
+Unlike NFS, it is possible to put any filesystem on it, etc.
+
+For more information, or to download the nbd-client and nbd-server
+tools, go to http://nbd.sf.net/.
+
+The nbd kernel module need only be installed on the client
+system, as the nbd-server is completely in userspace. In fact,
+the nbd-server has been successfully ported to other operating
+systems, including Windows.
+
+A) NBD parameters
+-----------------
+
+max_part
+        Number of partitions per device (default: 0).
+
+nbds_max
+        Number of block devices that should be initialized (default: 16).
+