linux-toradex.git/drivers/block, branch v3.19-rc5

NVMe: Fix locking on abort handling

2015-01-08T16:02:23+00:00

The queues and device need to be locked when messing with them.

Signed-off-by: Keith Busch 
Signed-off-by: Jens Axboe

NVMe: Start and stop h/w queues on reset

2015-01-08T16:02:20+00:00

This freezes and stops all the queues on device shutdown and restarts
them on resume. This fixes hotplug and reset issues when the controller
is actively being used.

Signed-off-by: Keith Busch 
Signed-off-by: Jens Axboe

NVMe: Command abort handling fixes

2015-01-08T16:02:18+00:00

Aborts all requeued commands prior to killing the request_queue. For
commands that time out on a dying request queue, set the "Do Not Retry"
bit on the command status so the command cannot be requeued. Finanally, if
the driver is requested to abort a command it did not start, do nothing.

Signed-off-by: Keith Busch 
Signed-off-by: Jens Axboe

NVMe: Admin queue removal handling

2015-01-08T16:02:08+00:00

This protects admin queue access on shutdown. When the controller is
disabled, the queue is frozen to prevent new entry, and unfrozen on
resume, and fixes cq_vector signedness to not suspend a queue twice.

Since unfreezing the queue makes it available for commands, it requires
the queue be initialized, so this moves this part after that.

Special handling is done when the device is unresponsive during
shutdown. This can be optimized to not require subsequent commands to
timeout, but saving that fix for later.

This patch also removes the kill signals in this path that were left-over
artifacts from the blk-mq conversion and no longer necessary.

Signed-off-by: Keith Busch 
Signed-off-by: Jens Axboe

NVMe: Reference count admin queue usage

2015-01-08T16:00:32+00:00

Since there is no gendisk associated with the admin queue, the driver
needs to hold a reference to it until all open references to the
controller are closed.

This also combines queue cleanup with freeing the tag set since these
should not be separate.

Signed-off-by: Keith Busch 
Signed-off-by: Jens Axboe

NVMe: Start all requests

2015-01-08T16:00:29+00:00

Once the nvme callback is set for a request, the driver can start it
and make it available for timeout handling. For timed out commands on a
device that is not initialized, this fixes potential deadlocks that can
occur on startup and shutdown when a device is unresponsive since they
can now be cancelled.

Asynchronous requests do not have any expected timeout, so these are
using the new "REQ_NO_TIMEOUT" request flags.

Signed-off-by: Keith Busch 
Signed-off-by: Jens Axboe

block: fix checking return value of blk_mq_init_queue

2015-01-02T17:32:02+00:00

Check IS_ERR_OR_NULL(return value) instead of just return value.

Signed-off-by: Ming Lei 

Reduced to IS_ERR() by me, we never return NULL.
Signed-off-by: Jens Axboe

NVMe: Fix double free irq

2014-12-22T19:59:04+00:00

Sets the vector to an invalid value after it's freed so we don't free
it twice.

Signed-off-by: Keith Busch 
Signed-off-by: Jens Axboe

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client

2014-12-18T00:03:12+00:00

Pull ceph updates from Sage Weil:
 "The big item here is support for inline data for CephFS and for
  message signatures from Zheng.  There are also several bug fixes,
  including interrupted flock request handling, 0-length xattrs, mksnap,
  cached readdir results, and a message version compat field.  Finally
  there are several cleanups from Ilya, Dan, and Markus.

  Note that there is another series coming soon that fixes some bugs in
  the RBD 'lingering' requests, but it isn't quite ready yet"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (27 commits)
  ceph: fix setting empty extended attribute
  ceph: fix mksnap crash
  ceph: do_sync is never initialized
  libceph: fixup includes in pagelist.h
  ceph: support inline data feature
  ceph: flush inline version
  ceph: convert inline data to normal data before data write
  ceph: sync read inline data
  ceph: fetch inline data when getting Fcr cap refs
  ceph: use getattr request to fetch inline data
  ceph: add inline data to pagecache
  ceph: parse inline data in MClientReply and MClientCaps
  libceph: specify position of extent operation
  libceph: add CREATE osd operation support
  libceph: add SETXATTR/CMPXATTR osd operations support
  rbd: don't treat CEPH_OSD_OP_DELETE as extent op
  ceph: remove unused stringification macros
  libceph: require cephx message signature by default
  ceph: introduce global empty snap context
  ceph: message versioning fixes
  ...

rbd: don't treat CEPH_OSD_OP_DELETE as extent op

2014-12-17T17:09:51+00:00

CEPH_OSD_OP_DELETE is not an extent op, stop treating it as such.  This
sneaked in with discard patches - it's one of the three osd ops (the
other two are CEPH_OSD_OP_TRUNCATE and CEPH_OSD_OP_ZERO) that discard
is implemented with.

Signed-off-by: Ilya Dryomov 
Reviewed-by: Alex Elder