linux.git/include/linux/tty.h, branch v3.14-rc2

Merge tag 'usb-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

2014-01-21T00:13:02+00:00

Pull USB updates from Greg KH:
 "Here's the big USB pull request for 3.14-rc1

  Lots of little things all over the place, and the usual USB gadget
  updates, and XHCI fixes (some for an issue reported by a lot of
  people).  USB PHY updates as well as chipidea updates and fixes.

  All of these have been in the linux-next tree with no reported issues"

* tag 'usb-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (318 commits)
  usb: chipidea: udc: using MultO at TD as real mult value for ISO-TX
  usb: chipidea: need to mask INT_STATUS when write otgsc
  usb: chipidea: put hw_phymode_configure before ci_usb_phy_init
  usb: chipidea: Fix Internal error: : 808 [#1] ARM related to STS flag
  usb: chipidea: imx: set CI_HDRC_IMX28_WRITE_FIX for imx28
  usb: chipidea: add freescale imx28 special write register method
  usb: ehci: add freescale imx28 special write register method
  usb: core: check for valid id_table when using the RefId feature
  usb: cdc-wdm: resp_count can be 0 even if WDM_READ is set
  usb: core: bail out if user gives an unknown RefId when using new_id
  usb: core: allow a reference device for new_id
  usb: core: add sanity checks when using bInterfaceClass with new_id
  USB: image: correct spelling mistake in comment
  USB: c67x00: correct spelling mistakes in comments
  usb: delete non-required instances of include 
  usb:hub set hub->change_bits when over-current happens
  Revert "usb: chipidea: imx: set CI_HDRC_IMX28_WRITE_FIX for imx28"
  xhci: Set scatter-gather limit to avoid failed block writes.
  xhci: Avoid infinite loop when sg urb requires too many trbs
  usb: gadget: remove unused variable in gr_queue_int()
  ...

tty: Add C_CMSPAR(tty)

2014-01-03T20:32:32+00:00

Add the missing C_CMSPAR(tty) macro.

Signed-off-by: Andrew Lunn 
Signed-off-by: Johan Hovold 
Signed-off-by: Greg Kroah-Hartman

tty: Removing the deprecated function tty_vhangup_locked()

2013-12-19T00:59:11+00:00

The function tty_vhangup_locked() was deprecated, removed it
from the tty.h also.

Signed-off-by: Liu, Chuansheng 
Signed-off-by: Greg Kroah-Hartman

tty: Halve flip buffer GFP_ATOMIC memory consumption

2013-12-09T19:09:24+00:00

tty flip buffers use GFP_ATOMIC allocations for received data
which is to be processed by the line discipline. For each byte
received, an extra byte is used to indicate the error status of
that byte.

Instead, if the received data is error-free, encode the entire
buffer without status bytes.

Signed-off-by: Peter Hurley 
Signed-off-by: Greg Kroah-Hartman

tty: Rename tty buffer memory_used field

2013-12-09T00:57:38+00:00

Trim up the memory_used field name to mem_used.

Signed-off-by: Peter Hurley 
Signed-off-by: Greg Kroah-Hartman

tty: Enable configurable tty flip buffer limit

2013-12-09T00:57:38+00:00

Allow driver to configure its maximum flip buffer memory
consumption/limit. This is necessary for very-high speed line
rates (in excess of 10MB/sec) because the flip buffers can
be saturated before the line discipline has a chance to
throttle the input.

Signed-off-by: Peter Hurley 
Signed-off-by: Greg Kroah-Hartman

Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-11-12T01:20:12+00:00

Pull scheduler changes from Ingo Molnar:
 "The main changes in this cycle are:

   - (much) improved CONFIG_NUMA_BALANCING support from Mel Gorman, Rik
     van Riel, Peter Zijlstra et al.  Yay!

   - optimize preemption counter handling: merge the NEED_RESCHED flag
     into the preempt_count variable, by Peter Zijlstra.

   - wait.h fixes and code reorganization from Peter Zijlstra

   - cfs_bandwidth fixes from Ben Segall

   - SMP load-balancer cleanups from Peter Zijstra

   - idle balancer improvements from Jason Low

   - other fixes and cleanups"

* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (129 commits)
  ftrace, sched: Add TRACE_FLAG_PREEMPT_RESCHED
  stop_machine: Fix race between stop_two_cpus() and stop_cpus()
  sched: Remove unnecessary iteration over sched domains to update nr_busy_cpus
  sched: Fix asymmetric scheduling for POWER7
  sched: Move completion code from core.c to completion.c
  sched: Move wait code from core.c to wait.c
  sched: Move wait.c into kernel/sched/
  sched/wait: Fix __wait_event_interruptible_lock_irq_timeout()
  sched: Avoid throttle_cfs_rq() racing with period_timer stopping
  sched: Guarantee new group-entities always have weight
  sched: Fix hrtimer_cancel()/rq->lock deadlock
  sched: Fix cfs_bandwidth misuse of hrtimer_expires_remaining
  sched: Fix race on toggling cfs_bandwidth_used
  sched: Remove extra put_online_cpus() inside sched_setaffinity()
  sched/rt: Fix task_tick_rt() comment
  sched/wait: Fix build breakage
  sched/wait: Introduce prepare_to_wait_event()
  sched/wait: Add ___wait_cond_timeout() to wait_event*_timeout() too
  sched: Remove get_online_cpus() usage
  sched: Fix race in migrate_swap_stop()
  ...

sched/wait: Make the __wait_event*() interface more friendly

2013-10-04T08:16:25+00:00

Change all __wait_event*() implementations to match the corresponding
wait_event*() signature for convenience.

In particular this does away with the weird 'ret' logic. Since there
are __wait_event*() users this requires we update them too.

Reviewed-by: Oleg Nesterov 
Signed-off-by: Peter Zijlstra 
Link: http://lkml.kernel.org/r/20131002092529.042563462@infradead.org
Signed-off-by: Ingo Molnar

sched/wait: Collapse __wait_event_interruptible_tty()

2013-10-04T08:16:20+00:00

Reduce macro complexity by using the new ___wait_event() helper.
No change in behaviour, identical generated code.

Reviewed-by: Oleg Nesterov 
Signed-off-by: Peter Zijlstra 
Link: http://lkml.kernel.org/r/20131002092528.831085521@infradead.org
Signed-off-by: Ingo Molnar

sched/wait: Make the signal_pending() checks consistent

2013-10-04T08:14:44+00:00

There's two patterns to check signals in the __wait_event*() macros:

  if (!signal_pending(current)) {
	schedule();
	continue;
  }
  ret = -ERESTARTSYS;
  break;

And the more natural:

  if (signal_pending(current)) {
	ret = -ERESTARTSYS;
	break;
  }
  schedule();

Change them all into the latter form.

Reviewed-by: Oleg Nesterov 
Signed-off-by: Peter Zijlstra 
Link: http://lkml.kernel.org/r/20131002092527.956416254@infradead.org
Signed-off-by: Ingo Molnar