Merge 3.11-rc3 into tty-next (cf204a1b) · Commits · e / devices / android_kernel_xiaomi_markw

Documentation/ABI/testing/sysfs-driver-xen-blkback

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+17 −0

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		What: /sys/module/xen_blkback/parameters/max_buffer_pages
		Date: March 2013
		KernelVersion: 3.11
		Contact: Roger Pau Monné <roger.pau@citrix.com>
		Description:
		Maximum number of free pages to keep in each block
		backend buffer.

		What: /sys/module/xen_blkback/parameters/max_persistent_grants
		Date: March 2013
		KernelVersion: 3.11
		Contact: Roger Pau Monné <roger.pau@citrix.com>
		Description:
		Maximum number of grants to map persistently in
		blkback. If the frontend tries to use more than
		max_persistent_grants, the LRU kicks in and starts
		removing 5% of max_persistent_grants every 100ms.

Documentation/ABI/testing/sysfs-driver-xen-blkfront

0 → 100644

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		What: /sys/module/xen_blkfront/parameters/max
		Date: June 2013
		KernelVersion: 3.11
		Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
		Description:
		Maximum number of segments that the frontend will negotiate
		with the backend for indirect descriptors. The default value
		is 32 - higher value means more potential throughput but more
		memory usage. The backend picks the minimum of the frontend
		and its default backend value.

Documentation/bcache.txt

+24 −13

Original line number	Diff line number	Diff line
		@@ -46,29 +46,33 @@ you format your backing devices and cache device at the same time, you won't
		have to manually attach:
		make-bcache -B /dev/sda /dev/sdb -C /dev/sdc

		To make bcache devices known to the kernel, echo them to /sys/fs/bcache/register:
		bcache-tools now ships udev rules, and bcache devices are known to the kernel
		immediately. Without udev, you can manually register devices like this:

		echo /dev/sdb > /sys/fs/bcache/register
		echo /dev/sdc > /sys/fs/bcache/register

		To register your bcache devices automatically, you could add something like
		this to an init script:
		Registering the backing device makes the bcache device show up in /dev; you can
		now format it and use it as normal. But the first time using a new bcache
		device, it'll be running in passthrough mode until you attach it to a cache.
		See the section on attaching.

		echo /dev/sd* > /sys/fs/bcache/register_quiet
		The devices show up as:

		It'll look for bcache superblocks and ignore everything that doesn't have one.
		/dev/bcache<N>

		Registering the backing device makes the bcache show up in /dev; you can now
		format it and use it as normal. But the first time using a new bcache device,
		it'll be running in passthrough mode until you attach it to a cache. See the
		section on attaching.
		As well as (with udev):

		The devices show up at /dev/bcacheN, and can be controlled via sysfs from
		/sys/block/bcacheN/bcache:
		/dev/bcache/by-uuid/<uuid>
		/dev/bcache/by-label/<label>

		To get started:

		mkfs.ext4 /dev/bcache0
		mount /dev/bcache0 /mnt

		You can control bcache devices through sysfs at /sys/block/bcache<N>/bcache .

		Cache devices are managed as sets; multiple caches per set isn't supported yet
		but will allow for mirroring of metadata and dirty data in the future. Your new
		cache set shows up as /sys/fs/bcache/<UUID>
		@@ -80,11 +84,11 @@ must be attached to your cache set to enable caching. Attaching a backing
		device to a cache set is done thusly, with the UUID of the cache set in
		/sys/fs/bcache:

		echo <UUID> > /sys/block/bcache0/bcache/attach
		echo <CSET-UUID> > /sys/block/bcache0/bcache/attach

		This only has to be done once. The next time you reboot, just reregister all
		your bcache devices. If a backing device has data in a cache somewhere, the
		/dev/bcache# device won't be created until the cache shows up - particularly
		/dev/bcache<N> device won't be created until the cache shows up - particularly
		important if you have writeback caching turned on.

		If you're booting up and your cache device is gone and never coming back, you
		@@ -191,6 +195,9 @@ want for getting the best possible numbers when benchmarking.

		SYSFS - BACKING DEVICE:

		Available at /sys/block/<bdev>/bcache, /sys/block/bcache*/bcache and
		(if attached) /sys/fs/bcache/<cset-uuid>/bdev*

		attach
		Echo the UUID of a cache set to this file to enable caching.

		@@ -300,6 +307,8 @@ cache_readaheads

		SYSFS - CACHE SET:

		Available at /sys/fs/bcache/<cset-uuid>

		average_key_size
		Average data per key in the btree.

		@@ -390,6 +399,8 @@ trigger_gc

		SYSFS - CACHE DEVICE:

		Available at /sys/block/<cdev>/bcache

		block_size
		Minimum granularity of writes - should match hardware sector size.

Documentation/devicetree/bindings/clock/imx27-clock.txt

+1 −0

Original line number	Diff line number	Diff line
		@@ -98,6 +98,7 @@ clocks and IDs.
		fpm 83
		mpll_osc_sel 84
		mpll_sel 85
		spll_gate 86

		Examples:

Documentation/devicetree/bindings/vendor-prefixes.txt

+2 −0

Original line number	Diff line number	Diff line
		@@ -26,6 +26,7 @@ est ESTeem Wireless Modems
		fsl Freescale Semiconductor
		GEFanuc GE Fanuc Intelligent Platforms Embedded Systems, Inc.
		gef GE Fanuc Intelligent Platforms Embedded Systems, Inc.
		hisilicon Hisilicon Limited.
		hp Hewlett Packard
		ibm International Business Machines (IBM)
		idt Integrated Device Technologies, Inc.
		@@ -43,6 +44,7 @@ nxp NXP Semiconductors
		onnn ON Semiconductor Corp.
		picochip Picochip Ltd
		powervr PowerVR (deprecated, use img)
		qca Qualcomm Atheros, Inc.
		qcom Qualcomm, Inc.
		ralink Mediatek/Ralink Technology Corp.
		ramtron Ramtron International