Commit 015dc089 authored by Peter Zijlstra's avatar Peter Zijlstra
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Merge branch 'sched/urgent'

parents 9d246053 d136122f
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@@ -90,11 +90,16 @@ Frank Rowand <frowand.list@gmail.com> <frank.rowand@sonymobile.com>
Frank Zago <fzago@systemfabricworks.com>
Gao Xiang <xiang@kernel.org> <gaoxiang25@huawei.com>
Gao Xiang <xiang@kernel.org> <hsiangkao@aol.com>
Gerald Schaefer <gerald.schaefer@linux.ibm.com> <gerald.schaefer@de.ibm.com>
Gerald Schaefer <gerald.schaefer@linux.ibm.com> <geraldsc@de.ibm.com>
Gerald Schaefer <gerald.schaefer@linux.ibm.com> <geraldsc@linux.vnet.ibm.com>
Greg Kroah-Hartman <greg@echidna.(none)>
Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman <greg@kroah.com>
Gregory CLEMENT <gregory.clement@bootlin.com> <gregory.clement@free-electrons.com>
Hanjun Guo <guohanjun@huawei.com> <hanjun.guo@linaro.org>
Heiko Carstens <hca@linux.ibm.com> <h.carstens@de.ibm.com>
Heiko Carstens <hca@linux.ibm.com> <heiko.carstens@de.ibm.com>
Henk Vergonet <Henk.Vergonet@gmail.com>
Henrik Kretzschmar <henne@nachtwindheim.de>
Henrik Rydberg <rydberg@bitmath.org>
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@@ -258,7 +258,7 @@ Configuring the kernel
Compiling the kernel
--------------------

 - Make sure you have at least gcc 4.6 available.
 - Make sure you have at least gcc 4.9 available.
   For more information, refer to :ref:`Documentation/process/changes.rst <changes>`.

   Please note that you can still run a.out user programs with this kernel.
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@@ -171,6 +171,7 @@ infrastructure:


  3) ID_AA64PFR1_EL1 - Processor Feature Register 1

     +------------------------------+---------+---------+
     | Name                         |  bits   | visible |
     +------------------------------+---------+---------+
@@ -181,6 +182,7 @@ infrastructure:


  4) MIDR_EL1 - Main ID Register

     +------------------------------+---------+---------+
     | Name                         |  bits   | visible |
     +------------------------------+---------+---------+
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@@ -492,13 +492,6 @@ set max_budget to higher values than those to which BFQ would have set
it with auto-tuning. An alternative way to achieve this goal is to
just increase the value of timeout_sync, leaving max_budget equal to 0.

weights
-------

Read-only parameter, used to show the weights of the currently active
BFQ queues.


4. Group scheduling with BFQ
============================

@@ -566,7 +559,7 @@ Parameters to set
For each group, there is only the following parameter to set.

weight (namely blkio.bfq.weight or io.bfq-weight): the weight of the
group inside its parent. Available values: 1..10000 (default 100). The
group inside its parent. Available values: 1..1000 (default 100). The
linear mapping between ioprio and weights, described at the beginning
of the tunable section, is still valid, but all weights higher than
IOPRIO_BE_NR*10 are mapped to ioprio 0.
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@@ -204,6 +204,14 @@ Returns the maximum size of a mapping for the device. The size parameter
of the mapping functions like dma_map_single(), dma_map_page() and
others should not be larger than the returned value.

::

	bool
	dma_need_sync(struct device *dev, dma_addr_t dma_addr);

Returns %true if dma_sync_single_for_{device,cpu} calls are required to
transfer memory ownership.  Returns %false if those calls can be skipped.

::

	unsigned long
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