Block bits for 3.0-rc2

Hi Linus,

A collection of smallish fixes for -rc2.

- One bio documentation improvement, that I see Al already pushed out. Should be identical, if not I'm sure you are up to the merge.

- Two bug fixes for the XEN blkback driver.

- A revert of a patch that caused a regression in sysfs discard alignment display.

- Further patches from Namhyung Kim, giving nbd the same fixup treatment for max_part oopsable conditions. Also fixes an ancient bug in there were the recvmsg() flags aren't correctly passed in.

- Two fixes from Paul Bolle, removing an if that was always false and correcting usage of list_entry() to hlist_entry() (cosmetical).

- A blkdev_get() fixup from Tejun.

Please pull.

git://git.kernel.dk/linux-block.git for-linus

Andreas Gruenbacher (1):
block: improve the bio_add_page() and bio_add_pc_page() descriptions

Dan Carpenter (1):
xen/blkback: potential null dereference in error handling

Jens Axboe (2):
Revert "block: Remove extra discard_alignment from hd_struct."
Merge branch 'for-jens/xen-blkback.fixes' of git://git.kernel.org/.../konrad/xen into for-linus

Kyungmin Park (1):
CFQ: Fix typo and remove unnecessary semicolon

Laszlo Ersek (1):
xen/blkback: don't call vbd_size() if bd_disk is NULL

Namhyung Kim (4):
nbd: pass MSG_* flags to kernel_recvmsg()
nbd: limit module parameters to a sane value
nbd: adjust 'max_part' according to part_shift
block: remove unwanted semicolons

Paul Bolle (2):
cfq-iosched: Remove bogus check in queue_fail path
block: Use hlist_entry() for io_context.cic_list.first

Tejun Heo (1):

      block: blkdev_get() should access ->bd_disk only after success

 block/blk-ioc.c                     |    4 ++--
 block/cfq-iosched.c                 |   11 ++++-------
 drivers/block/nbd.c                 |   22 ++++++++++++++++++++--
 drivers/block/xen-blkback/blkback.c |   10 ++++++----
 drivers/block/xen-blkback/xenbus.c  |    3 +--
 fs/bio.c                            |   16 ++++++++--------
 fs/block_dev.c                      |    4 ++--
 fs/partitions/check.c               |   10 +++-------
 include/linux/blkdev.h              |    4 ++--
 include/linux/genhd.h               |    1 +
 10 files changed, 49 insertions(+), 36 deletions(-)

Jens Axboe