Commit a3479c7f authored by Andreas Gruenbacher's avatar Andreas Gruenbacher
Browse files

Merge branch 'iomap-write' into linux-gfs2/for-next 



Pull in the gfs2 iomap-write changes: Tweak the existing code to
properly support iomap write and eliminate an unnecessary special case
in gfs2_block_map.  Implement iomap write support for buffered and
direct I/O.  Simplify some of the existing code and eliminate code that
is no longer used:

  gfs2: Remove gfs2_write_{begin,end}
  gfs2: iomap direct I/O support
  gfs2: gfs2_extent_length cleanup
  gfs2: iomap buffered write support
  gfs2: Further iomap cleanups

This is based on the following changes on the xfs 'iomap-4.19-merge'
branch:

  iomap: add private pointer to struct iomap
  iomap: add a page_done callback
  iomap: generic inline data handling
  iomap: complete partial direct I/O writes synchronously
  iomap: mark newly allocated buffer heads as new
  fs: factor out a __generic_write_end helper

Signed-off-by: default avatarAndreas Gruenbacher <agruenba@redhat.com>
parents 109dbb1e 025d0e7f

Documentation/ABI/obsolete/sysfs-gpio

+1 −1
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@@ -11,7 +11,7 @@ Description: 
  Kernel code may export it for complete or partial access.



  GPIOs are identified as they are inside the kernel, using integers in

  the range 0..INT_MAX.  See Documentation/gpio/gpio.txt for more information.

  the range 0..INT_MAX.  See Documentation/gpio for more information.



    /sys/class/gpio

	/export ... asks the kernel to export a GPIO to userspace

Documentation/ABI/testing/sysfs-bus-rpmsg

+20 −0
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@@ -73,3 +73,23 @@ Description: 
		This sysfs entry tells us whether the channel is a local

		server channel that is announced (values are either

		true or false).



What:		/sys/bus/rpmsg/devices/.../driver_override

Date:		April 2018

KernelVersion:	4.18

Contact:	Bjorn Andersson <bjorn.andersson@linaro.org>

Description:

		Every rpmsg device is a communication channel with a remote

		processor. Channels are identified by a textual name (see

		/sys/bus/rpmsg/devices/.../name above) and have a local

		("source") rpmsg address, and remote ("destination") rpmsg

		address.



		The listening entity (or client) which communicates with a

		remote processor is referred as rpmsg driver. The rpmsg device

		and rpmsg driver are matched based on rpmsg device name and

		rpmsg driver ID table.



		This sysfs entry allows the rpmsg driver for a rpmsg device

		to be specified which will override standard OF, ID table

		and name matching.

Documentation/ABI/testing/sysfs-devices-system-cpu

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@@ -238,9 +238,6 @@ Description: Discover and change clock speed of CPUs 


		See files in Documentation/cpu-freq/ for more information.



		In particular, read Documentation/cpu-freq/user-guide.txt

		to learn how to control the knobs.





What:		/sys/devices/system/cpu/cpu#/cpufreq/freqdomain_cpus

Date:		June 2013

Documentation/ABI/testing/sysfs-fs-f2fs

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@@ -101,6 +101,7 @@ Date: February 2015 
Contact:	"Jaegeuk Kim" <jaegeuk@kernel.org>

Description:

		 Controls the trimming rate in batch mode.

		 <deprecated>



What:		/sys/fs/f2fs/<disk>/cp_interval

Date:		October 2015
@@ -140,7 +141,7 @@ Contact: "Shuoran Liu" <liushuoran@huawei.com> 
Description:

		 Shows total written kbytes issued to disk.



What:		/sys/fs/f2fs/<disk>/feature

What:		/sys/fs/f2fs/<disk>/features

Date:		July 2017

Contact:	"Jaegeuk Kim" <jaegeuk@kernel.org>

Description:

Documentation/ABI/testing/sysfs-platform-ideapad-laptop

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@@ -25,3 +25,16 @@ Description: 
		Control touchpad mode.

			* 1 -> Switched On

			* 0 -> Switched Off



What:		/sys/bus/pci/devices/<bdf>/<device>/VPC2004:00/fn_lock

Date:		May 2018

KernelVersion:	4.18

Contact:	"Oleg Keri <ezhi99@gmail.com>"

Description:

		Control fn-lock mode.

			* 1 -> Switched On

			* 0 -> Switched Off



		For example:

		# echo "0" >	\

		/sys/bus/pci/devices/0000:00:1f.0/PNP0C09:00/VPC2004:00/fn_lock

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