aoe: various enhancements and cleanup from v50 to v60

This patch series is based on linux-next/akpm from 11 Oct.

The patch that modifies aoenet.c:tx to print a warning does not affect locking but nonetheless causes a new sparse context warning to appear. Before a bug in sparse suppressed the warning. We will soon be able to use the new __must_hold() macro that now appears only in (not linux-next/akpm but) mm, making the warning go away by telling sparse that the tx function enters and exits with a lock held.

Ed L. Cashin (9):
aoe: describe the behavior of the "err" character device
aoe: print warning regarding a common reason for dropped transmits
aoe: update cap on outstanding commands based on config query
response
aoe: support the forgetting (flushing) of a user-specified AoE target
aoe: support larger I/O requests via aoe_maxsectors module param
aoe: "payload" sysfs file exports per-AoE-command data transfer size
aoe: cleanup: remove unused ata_scnt function
aoe: whitespace cleanup
aoe: update driver-internal version number to 60

 drivers/block/aoe/aoe.h     |   10 ++++----
 drivers/block/aoe/aoeblk.c  |   19 ++++++++++++++++++
 drivers/block/aoe/aoechr.c  |    7 +++++-
 drivers/block/aoe/aoecmd.c  |   22 +++++++-------------
 drivers/block/aoe/aoedev.c  |   44 +++++++++++++++++++++++++++++++++++++-----
 drivers/block/aoe/aoemain.c |    2 +-
 drivers/block/aoe/aoenet.c  |   15 ++++++++++---
 7 files changed, 88 insertions(+), 31 deletions(-)