Commit fb437bc8 authored by Ingo Molnar's avatar Ingo Molnar
Browse files

Merge tag 'v4.19-rc5' into perf/core, to pick up fixes 



Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parents 49e73246 6bf4ca7f

Documentation/ABI/stable/sysfs-devices-system-xen_memory

+9 −0
Original line number Diff line number Diff line
@@ -75,3 +75,12 @@ Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> 
Description:

		Amount (in KiB) of low (or normal) memory in the

		balloon.



What:		/sys/devices/system/xen_memory/xen_memory0/scrub_pages

Date:		September 2018

KernelVersion:	4.20

Contact:	xen-devel@lists.xenproject.org

Description:

		Control scrubbing pages before returning them to Xen for others domains

		use. Can be set with xen_scrub_pages cmdline

		parameter. Default value controlled with CONFIG_XEN_SCRUB_PAGES_DEFAULT.

Documentation/admin-guide/kernel-parameters.txt

+6 −0
Original line number Diff line number Diff line
@@ -5000,6 +5000,12 @@ 
			Disables the PV optimizations forcing the HVM guest to

			run as generic HVM guest with no PV drivers.



	xen_scrub_pages=	[XEN]

			Boolean option to control scrubbing pages before giving them back

			to Xen, for use by other domains. Can be also changed at runtime

			with /sys/devices/system/xen_memory/xen_memory0/scrub_pages.

			Default value controlled with CONFIG_XEN_SCRUB_PAGES_DEFAULT.



	xirc2ps_cs=	[NET,PCMCIA]

			Format:

			<irq>,<irq_mask>,<io>,<full_duplex>,<do_sound>,<lockup_hack>[,<irq2>[,<irq3>[,<irq4>]]]

Documentation/device-mapper/dm-raid.txt

+4 −0
Original line number Diff line number Diff line
@@ -348,3 +348,7 @@ Version History 
1.13.1  Fix deadlock caused by early md_stop_writes().  Also fix size an

	state races.

1.13.2  Fix raid redundancy validation and avoid keeping raid set frozen

1.14.0  Fix reshape race on small devices.  Fix stripe adding reshape

	deadlock/potential data corruption.  Update superblock when

	specific devices are requested via rebuild.  Fix RAID leg

	rebuild errors.

Documentation/devicetree/bindings/net/macb.txt

+1 −0
Original line number Diff line number Diff line
@@ -10,6 +10,7 @@ Required properties: 
  Use "cdns,pc302-gem" for Picochip picoXcell pc302 and later devices based on

  the Cadence GEM, or the generic form: "cdns,gem".

  Use "atmel,sama5d2-gem" for the GEM IP (10/100) available on Atmel sama5d2 SoCs.

  Use "atmel,sama5d3-macb" for the 10/100Mbit IP available on Atmel sama5d3 SoCs.

  Use "atmel,sama5d3-gem" for the Gigabit IP available on Atmel sama5d3 SoCs.

  Use "atmel,sama5d4-gem" for the GEM IP (10/100) available on Atmel sama5d4 SoCs.

  Use "cdns,zynq-gem" Xilinx Zynq-7xxx SoC.

Documentation/filesystems/vfs.txt

+19 −2
Original line number Diff line number Diff line
@@ -848,7 +848,7 @@ struct file_operations 
----------------------



This describes how the VFS can manipulate an open file. As of kernel

4.1, the following members are defined:

4.18, the following members are defined:



struct file_operations {

	struct module *owner;
@@ -858,11 +858,11 @@ struct file_operations { 
	ssize_t (*read_iter) (struct kiocb *, struct iov_iter *);

	ssize_t (*write_iter) (struct kiocb *, struct iov_iter *);

	int (*iterate) (struct file *, struct dir_context *);

	int (*iterate_shared) (struct file *, struct dir_context *);

	__poll_t (*poll) (struct file *, struct poll_table_struct *);

	long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);

	long (*compat_ioctl) (struct file *, unsigned int, unsigned long);

	int (*mmap) (struct file *, struct vm_area_struct *);

	int (*mremap)(struct file *, struct vm_area_struct *);

	int (*open) (struct inode *, struct file *);

	int (*flush) (struct file *, fl_owner_t id);

	int (*release) (struct inode *, struct file *);
@@ -882,6 +882,10 @@ struct file_operations { 
#ifndef CONFIG_MMU

	unsigned (*mmap_capabilities)(struct file *);

#endif

	ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);

	int (*clone_file_range)(struct file *, loff_t, struct file *, loff_t, u64);

	int (*dedupe_file_range)(struct file *, loff_t, struct file *, loff_t, u64);

	int (*fadvise)(struct file *, loff_t, loff_t, int);

};



Again, all methods are called without any locks being held, unless
@@ -899,6 +903,9 @@ otherwise noted. 


  iterate: called when the VFS needs to read the directory contents



  iterate_shared: called when the VFS needs to read the directory contents

	when filesystem supports concurrent dir iterators



  poll: called by the VFS when a process wants to check if there is

	activity on this file and (optionally) go to sleep until there

	is activity. Called by the select(2) and poll(2) system calls
@@ -951,6 +958,16 @@ otherwise noted. 


  fallocate: called by the VFS to preallocate blocks or punch a hole.



  copy_file_range: called by the copy_file_range(2) system call.



  clone_file_range: called by the ioctl(2) system call for FICLONERANGE and

	FICLONE commands.



  dedupe_file_range: called by the ioctl(2) system call for FIDEDUPERANGE

	command.



  fadvise: possibly called by the fadvise64() system call.



Note that the file operations are implemented by the specific

filesystem in which the inode resides. When opening a device node

(character or block special) most filesystems will call special