linux_dsm_epyc7002/arch/arm
Linus Torvalds eac7078a0f pidfd patches for v5.2-rc1
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Merge tag 'pidfd-v5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux

Pull pidfd updates from Christian Brauner:
 "This patchset makes it possible to retrieve pidfds at process creation
  time by introducing the new flag CLONE_PIDFD to the clone() system
  call. Linus originally suggested to implement this as a new flag to
  clone() instead of making it a separate system call.

  After a thorough review from Oleg CLONE_PIDFD returns pidfds in the
  parent_tidptr argument. This means we can give back the associated pid
  and the pidfd at the same time. Access to process metadata information
  thus becomes rather trivial.

  As has been agreed, CLONE_PIDFD creates file descriptors based on
  anonymous inodes similar to the new mount api. They are made
  unconditional by this patchset as they are now needed by core kernel
  code (vfs, pidfd) even more than they already were before (timerfd,
  signalfd, io_uring, epoll etc.). The core patchset is rather small.
  The bulky looking changelist is caused by David's very simple changes
  to Kconfig to make anon inodes unconditional.

  A pidfd comes with additional information in fdinfo if the kernel
  supports procfs. The fdinfo file contains the pid of the process in
  the callers pid namespace in the same format as the procfs status
  file, i.e. "Pid:\t%d".

  To remove worries about missing metadata access this patchset comes
  with a sample/test program that illustrates how a combination of
  CLONE_PIDFD and pidfd_send_signal() can be used to gain race-free
  access to process metadata through /proc/<pid>.

  Further work based on this patchset has been done by Joel. His work
  makes pidfds pollable. It finished too late for this merge window. I
  would prefer to have it sitting in linux-next for a while and send it
  for inclusion during the 5.3 merge window"

* tag 'pidfd-v5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
  samples: show race-free pidfd metadata access
  signal: support CLONE_PIDFD with pidfd_send_signal
  clone: add CLONE_PIDFD
  Make anon_inodes unconditional
2019-05-07 12:30:24 -07:00
..
boot A small number of ARM fixes 2019-04-28 10:50:57 -07:00
common ARM: 8847/1: pm: fix HYP/SVC mode mismatch when MCPM is used 2019-02-26 11:32:54 +00:00
configs ARM: imx_v4_v5_defconfig: enable PWM driver 2019-03-22 09:56:11 +08:00
crypto crypto: shash - remove shash_desc::flags 2019-04-25 15:38:12 +08:00
firmware
include arm64 updates for 5.2 2019-05-06 17:54:22 -07:00
kernel Merge branch 'core-stacktrace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-05-06 13:11:48 -07:00
kvm Make anon_inodes unconditional 2019-04-19 14:03:11 +02:00
lib ARM: 8844/1: use unified assembler in assembly files 2019-02-26 11:26:07 +00:00
mach-actions ARM: actions: remove boot_lock and pen_release 2019-02-01 21:59:15 +00:00
mach-alpine PCI: consolidate PCI config entry in drivers/pci 2018-11-23 11:45:34 +09:00
mach-artpec
mach-asm9260
mach-aspeed
mach-at91 arm/mach-at91/pm : fix possible object reference leak 2019-04-04 12:00:24 +02:00
mach-axxia
mach-bcm bcm2835-pm: Move bcm2835-watchdog's DT probe to an MFD. 2019-01-09 16:55:06 +01:00
mach-berlin
mach-clps711x
mach-cns3xxx irqchip updates for 5.1, take #2 2019-03-21 12:30:54 +01:00
mach-davinci Power management updates for 5.1-rc1 2019-03-06 12:59:46 -08:00
mach-digicolor
mach-dove
mach-ebsa110
mach-efm32
mach-ep93xx spi: ep93xx: Convert to use CS GPIO descriptors 2019-05-02 10:37:59 +09:00
mach-exynos ARM updates for 5.1-rc1 2019-03-15 14:37:46 -07:00
mach-footbridge PCI: consolidate PCI config entry in drivers/pci 2018-11-23 11:45:34 +09:00
mach-gemini
mach-highbank
mach-hisi
mach-imx Printk changes for 5.2 2019-05-07 09:18:12 -07:00
mach-integrator ARM: integrator: impd1: use struct_size() in devm_kzalloc() 2019-01-11 13:33:00 +01:00
mach-iop13xx ARM: iop: don't use using 64-bit DMA masks 2019-04-07 15:19:49 -07:00
mach-iop32x ARM: iop32x/n2100: fix PCI IRQ mapping 2019-01-30 11:34:42 +01:00
mach-iop33x
mach-ixp4xx PCI: consolidate PCI config entry in drivers/pci 2018-11-23 11:45:34 +09:00
mach-keystone
mach-ks8695 ARM: 8844/1: use unified assembler in assembly files 2019-02-26 11:26:07 +00:00
mach-lpc18xx
mach-lpc32xx ARM: lpc32xx: remove platform data of ARM PL111 LCD controller 2019-02-03 21:40:41 +02:00
mach-mediatek arm: mediatek: add MT7629 smp bring up code 2019-02-07 17:59:16 +01:00
mach-meson ARM: meson: remove COMMON_CLK_AMLOGIC selection 2019-02-06 19:53:02 -08:00
mach-milbeaut ARM: milbeaut: fix build with !CONFIG_HOTPLUG_CPU 2019-04-07 15:29:55 -07:00
mach-mmp regulator: fixed/gpio: Pull inversion/OD into gpiolib 2019-02-06 15:58:29 +00:00
mach-moxart
mach-mv78xx0 PCI: consolidate PCI config entry in drivers/pci 2018-11-23 11:45:34 +09:00
mach-mvebu PCI: consolidate PCI config entry in drivers/pci 2018-11-23 11:45:34 +09:00
mach-mxs
mach-netx
mach-nomadik
mach-npcm
mach-nspire
mach-omap1 ARM: OMAP1: ams-delta: Fix broken GPIO ID allocation 2019-03-22 15:30:20 -07:00
mach-omap2 ARM: OMAP2+: add missing of_node_put after of_device_is_available 2019-03-22 15:30:32 -07:00
mach-orion5x ARM: orion5x: Include platform_data/dsa.h 2019-01-17 11:31:24 -08:00
mach-oxnas ARM: oxnas: remove CPU hotplug implementation 2019-02-01 21:59:15 +00:00
mach-picoxcell
mach-prima2 ARM: smp: remove arch-provided "pen_release" 2019-02-01 22:05:23 +00:00
mach-pxa ARM: SoC platform updates for 5.1 2019-03-06 09:33:05 -08:00
mach-qcom ARM: qcom: remove unnecessary boot_lock 2019-02-01 21:59:15 +00:00
mach-rda ARM: Prepare RDA8810PL SoC 2018-12-31 13:09:39 -08:00
mach-realview ARM: vexpress/realview: consolidate immitation CPU hotplug 2018-12-14 14:44:59 +00:00
mach-rockchip
mach-rpc
mach-s3c24xx ARM: s3c24xx: Fix boolean expressions in osiris_dvs_notify 2019-01-07 20:41:01 +01:00
mach-s3c64xx regulator: wm8994: Pass descriptor instead of GPIO number 2018-11-15 11:42:08 -08:00
mach-s5pv210 ARM: s5pv210: Remove legacy setting of external wakeup interrupts 2018-11-12 21:19:48 +01:00
mach-sa1100 This is the bulk of GPIO changes for the v5.1 cycle: 2019-03-08 10:09:53 -08:00
mach-shmobile ARM: shmobile: Fix R-Car Gen2 regulator quirk 2019-01-07 13:24:07 +01:00
mach-socfpga reset: socfpga: declare socfpga_reset_init in a header file 2019-01-28 11:16:04 +01:00
mach-spear ARM: smp: remove arch-provided "pen_release" 2019-02-01 22:05:23 +00:00
mach-sti ARM: sti: remove pen_release and boot_lock 2018-12-20 14:32:15 +01:00
mach-stm32
mach-sunxi reset: sunxi: declare sun6i_reset_init in a header file 2019-01-28 11:16:04 +01:00
mach-tango ARM: tango: Improve ARCH_MULTIPLATFORM compatibility 2019-01-30 11:45:10 +01:00
mach-tegra ARM updates for 5.1-rc1 2019-03-15 14:37:46 -07:00
mach-u300
mach-uniphier
mach-ux500
mach-versatile
mach-vexpress ARM: vexpress/realview: consolidate immitation CPU hotplug 2018-12-14 14:44:59 +00:00
mach-vt8500
mach-w90x900
mach-zx
mach-zynq
mm Printk changes for 5.2 2019-05-07 09:18:12 -07:00
net arm: bpf: implement jitting of JMP32 2019-01-26 13:33:02 -08:00
nwfpe treewide: Switch printk users from %pf and %pF to %ps and %pS, respectively 2019-04-09 14:19:06 +02:00
oprofile Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
plat-iop ARM: iop: don't use using 64-bit DMA masks 2019-04-07 15:19:49 -07:00
plat-omap ARM: Kconfig: remove useless "default n" 2018-11-08 10:53:09 +00:00
plat-orion ARM: orion: don't use using 64-bit DMA masks 2019-04-07 15:19:42 -07:00
plat-pxa ARM: pxa: ssp: unneeded to free devm_ allocated data 2019-01-23 21:32:01 +01:00
plat-samsung ARM: samsung: Limit SAMSUNG_PM_DEBUG config option to non-Exynos platforms 2018-11-18 15:11:27 +01:00
plat-versatile ARM: versatile: rename and comment SMP implementation 2018-12-14 14:44:59 +00:00
probes ARM: 8834/1: Fix: kprobes: optimized kprobes illegal instruction 2019-02-12 15:20:58 +00:00
tools arch: add pidfd and io_uring syscalls everywhere 2019-04-15 16:31:17 +02:00
vdso ARM: vdso: Remove dependency with the arch_timer driver internals 2019-04-30 16:09:07 +01:00
vfp Merge branches 'misc', 'sa1100-for-next' and 'spectre' into for-linus 2019-01-02 10:37:05 +00:00
xen get rid of legacy 'get_ds()' function 2019-03-04 10:50:14 -08:00
Kconfig Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-05-06 13:50:15 -07:00
Kconfig-nommu ARM: 8832/1: NOMMU: Limit visibility for CONFIG_FLASH_{MEM_BASE,SIZE} 2019-02-01 21:44:46 +00:00
Kconfig.debug ARM: fix function graph tracer and unwinder dependencies 2019-04-23 17:28:32 +01:00
Makefile ARM updates for 5.1-rc1 2019-03-15 14:37:46 -07:00