Commit Graph

760 Commits

Author SHA1 Message Date
Tao Huang
495fe343ce Merge tag 'v6.1.99'
This is the 6.1.99 stable release

* tag 'v6.1.99': (1975 commits)
  Linux 6.1.99
  Revert "usb: xhci: prevent potential failure in handle_tx_event() for Transfer events without TRB"
  Linux 6.1.98
  nilfs2: fix incorrect inode allocation from reserved inodes
  null_blk: Do not allow runt zone with zone capacity smaller then zone size
  spi: cadence: Ensure data lines set to low during dummy-cycle period
  nfc/nci: Add the inconsistency check between the input data length and count
  kbuild: fix short log for AS in link-vmlinux.sh
  nvmet: fix a possible leak when destroy a ctrl during qp establishment
  platform/x86: touchscreen_dmi: Add info for the EZpad 6s Pro
  platform/x86: touchscreen_dmi: Add info for GlobalSpace SolT IVW 11.6" tablet
  regmap-i2c: Subtract reg size from max_write
  nvme: adjust multiples of NVME_CTRL_PAGE_SIZE in offset
  dma-mapping: benchmark: avoid needless copy_to_user if benchmark fails
  nvme-multipath: find NUMA path only for online numa-node
  ALSA: hda/realtek: Enable headset mic of JP-IK LEAP W502 with ALC897
  fs/ntfs3: Mark volume as dirty if xattr is broken
  i2c: pnx: Fix potential deadlock warning from del_timer_sync() call in isr
  clk: mediatek: mt8183: Only enable runtime PM on mt8183-mfgcfg
  clk: mediatek: clk-mtk: Register MFG notifier in mtk_clk_simple_probe()
  ...

Change-Id: Ibf9c2caa3bbffb7a960e82ec6c2b0b497753778c

Conflicts:
	arch/arm64/boot/dts/rockchip/rk3328.dtsi
	drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
	drivers/phy/rockchip/phy-rockchip-snps-pcie3.c
	drivers/pinctrl/pinctrl-rockchip.c
	drivers/usb/gadget/function/u_audio.c
	include/linux/usb/quirks.h
	mm/cma.c
	sound/soc/rockchip/rockchip_i2s_tdm.c
2024-10-25 17:51:39 +08:00
Tao Huang
b453658077 Merge tag 'v6.1.84'
This is the 6.1.84 stable release

* tag 'v6.1.84': (1865 commits)
  Linux 6.1.84
  tools/resolve_btfids: fix build with musl libc
  USB: core: Fix deadlock in usb_deauthorize_interface()
  x86/sev: Skip ROM range scans and validation for SEV-SNP guests
  scsi: libsas: Fix disk not being scanned in after being removed
  scsi: libsas: Add a helper sas_get_sas_addr_and_dev_type()
  scsi: lpfc: Correct size for wqe for memset()
  scsi: lpfc: Correct size for cmdwqe/rspwqe for memset()
  tls: fix use-after-free on failed backlog decryption
  x86/cpu: Enable STIBP on AMD if Automatic IBRS is enabled
  scsi: qla2xxx: Delay I/O Abort on PCI error
  scsi: qla2xxx: Change debug message during driver unload
  scsi: qla2xxx: Fix double free of fcport
  scsi: qla2xxx: Fix command flush on cable pull
  scsi: qla2xxx: NVME|FCP prefer flag not being honored
  scsi: qla2xxx: Update manufacturer detail
  scsi: qla2xxx: Split FCE|EFT trace control
  scsi: qla2xxx: Fix N2N stuck connection
  scsi: qla2xxx: Prevent command send on chip reset
  usb: typec: ucsi: Clear UCSI_CCI_RESET_COMPLETE before reset
  ...

Change-Id: If6edd552c88012d97f5eefc5e1d97a4f1683f171

Conflicts:
	drivers/gpu/drm/bridge/sii902x.c
	drivers/gpu/drm/rockchip/rockchip_lvds.c
	drivers/media/i2c/imx335.c
	drivers/usb/dwc3/gadget.c
	drivers/usb/host/xhci-plat.c
	sound/soc/rockchip/rockchip_i2s_tdm.c
2024-08-17 17:42:29 +08:00
Ingo Molnar
6d6fe13cca smp: Provide 'setup_max_cpus' definition on UP too
commit 3c2f8859ae1ce53f2a89c8e4ca4092101afbff67 upstream.

This was already defined locally by init/main.c, but let's make
it generic, as arch/x86/kernel/cpu/topology.c is going to make
use of it to have more uniform code.

Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-06-16 13:41:42 +02:00
Tao Huang
fce55f8eb2 Merge tag 'v6.1.75'
This is the 6.1.75 stable release

* tag 'v6.1.75': (2623 commits)
  Linux 6.1.75
  Revert "Revert "md/raid5: Wait for MD_SB_CHANGE_PENDING in raid5d""
  arm64: dts: armada-3720-turris-mox: set irq type for RTC
  Revert "KEYS: encrypted: Add check for strsep"
  riscv: Fix wrong usage of lm_alias() when splitting a huge linear mapping
  block: Remove special-casing of compound pages
  i2c: s3c24xx: fix transferring more than one message in polling mode
  i2c: s3c24xx: fix read transfers in polling mode
  ipv6: mcast: fix data-race in ipv6_mc_down / mld_ifc_work
  selftests: mlxsw: qos_pfc: Adjust the test to support 8 lanes
  mlxsw: spectrum_acl_erp: Fix error flow of pool allocation failure
  loop: fix the the direct I/O support check when used on top of block devices
  ethtool: netlink: Add missing ethnl_ops_begin/complete
  kdb: Fix a potential buffer overflow in kdb_local()
  ipvs: avoid stat macros calls from preemptible context
  netfilter: nf_tables: reject NFT_SET_CONCAT with not field length description
  netfilter: nf_tables: skip dead set elements in netlink dump
  netfilter: nf_tables: do not allow mismatch field size and set key length
  netfilter: bridge: replace physindev with physinif in nf_bridge_info
  netfilter: propagate net to nf_bridge_get_physindev
  ...

Conflicts:
	drivers/clk/rockchip/clk-rk3568.c
	drivers/devfreq/event/rockchip-dfi.c
	drivers/gpu/drm/rockchip/rockchip_drm_vop.c
	drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
	drivers/i2c/busses/i2c-rk3x.c
	drivers/i2c/i2c-core-base.c
	drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
	drivers/nvme/host/nvme.h

Change-Id: I9649ece83925659bca59cced0be24f0bd165822a
Signed-off-by: Sandy Huang <hjc@rock-chips.com>
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
2024-05-08 11:14:32 +08:00
Yuntao Wang
76c2f4d426 init/main.c: Fix potential static_command_line memory overflow
commit 46dad3c1e57897ab9228332f03e1c14798d2d3b9 upstream.

We allocate memory of size 'xlen + strlen(boot_command_line) + 1' for
static_command_line, but the strings copied into static_command_line are
extra_command_line and command_line, rather than extra_command_line and
boot_command_line.

When strlen(command_line) > strlen(boot_command_line), static_command_line
will overflow.

This patch just recovers strlen(command_line) which was miss-consolidated
with strlen(boot_command_line) in the commit f5c7310ac7 ("init/main: add
checks for the return value of memblock_alloc*()")

Link: https://lore.kernel.org/all/20240412081733.35925-2-ytcoode@gmail.com/

Fixes: f5c7310ac7 ("init/main: add checks for the return value of memblock_alloc*()")
Cc: stable@vger.kernel.org
Signed-off-by: Yuntao Wang <ytcoode@gmail.com>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-04-27 17:07:16 +02:00
Changbin Du
c550f0055c modules: wait do_free_init correctly
[ Upstream commit 8f8cd6c0a43ed637e620bbe45a8d0e0c2f4d5130 ]

The synchronization here is to ensure the ordering of freeing of a module
init so that it happens before W+X checking.  It is worth noting it is not
that the freeing was not happening, it is just that our sanity checkers
raced against the permission checkers which assume init memory is already
gone.

Commit 1a7b7d9220 ("modules: Use vmalloc special flag") moved calling
do_free_init() into a global workqueue instead of relying on it being
called through call_rcu(..., do_free_init), which used to allowed us call
do_free_init() asynchronously after the end of a subsequent grace period.
The move to a global workqueue broke the gaurantees for code which needed
to be sure the do_free_init() would complete with rcu_barrier().  To fix
this callers which used to rely on rcu_barrier() must now instead use
flush_work(&init_free_wq).

Without this fix, we still could encounter false positive reports in W+X
checking since the rcu_barrier() here can not ensure the ordering now.

Even worse, the rcu_barrier() can introduce significant delay.  Eric
Chanudet reported that the rcu_barrier introduces ~0.1s delay on a
PREEMPT_RT kernel.

  [    0.291444] Freeing unused kernel memory: 5568K
  [    0.402442] Run /sbin/init as init process

With this fix, the above delay can be eliminated.

Link: https://lkml.kernel.org/r/20240227023546.2490667-1-changbin.du@huawei.com
Fixes: 1a7b7d9220 ("modules: Use vmalloc special flag")
Signed-off-by: Changbin Du <changbin.du@huawei.com>
Tested-by: Eric Chanudet <echanude@redhat.com>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Cc: Xiaoyi Su <suxiaoyi@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-26 18:20:52 -04:00
Tao Huang
8ca3ffc967 init: Add CONFIG_ROCKCHIP_THUNDER_BOOT_DEFER_FREE_MEMBLOCK
Allow defer free large memblock to Buddy allocator work on
!CONFIG_ROCKCHIP_THUNDER_BOOT.

Change-Id: I30f851f648b007d1629eed27ba464ad2d7425577
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
2024-03-01 15:46:23 +08:00
Tao Huang
b3471d8054 Merge tag 'v6.1.57'
This is the 6.1.57 stable release

* tag 'v6.1.57': (2054 commits)
  Linux 6.1.57
  xen/events: replace evtchn_rwlock with RCU
  ipv6: remove one read_lock()/read_unlock() pair in rt6_check_neigh()
  btrfs: file_remove_privs needs an exclusive lock in direct io write
  netlink: remove the flex array from struct nlmsghdr
  btrfs: fix fscrypt name leak after failure to join log transaction
  btrfs: fix an error handling path in btrfs_rename()
  vrf: Fix lockdep splat in output path
  ipv6: remove nexthop_fib6_nh_bh()
  parisc: Restore __ldcw_align for PA-RISC 2.0 processors
  ksmbd: fix uaf in smb20_oplock_break_ack
  ksmbd: fix race condition between session lookup and expire
  x86/sev: Use the GHCB protocol when available for SNP CPUID requests
  RDMA/mlx5: Fix NULL string error
  RDMA/mlx5: Fix mutex unlocking on error flow for steering anchor creation
  RDMA/siw: Fix connection failure handling
  RDMA/srp: Do not call scsi_done() from srp_abort()
  RDMA/uverbs: Fix typo of sizeof argument
  RDMA/cma: Fix truncation compilation warning in make_cma_ports
  RDMA/cma: Initialize ib_sa_multicast structure to 0 when join
  ...

Change-Id: I79b925ca5822e02e0b9f497b1db93fef0e1dadd3

Conflicts:
	drivers/gpu/drm/rockchip/rockchip_drm_vop.c
	drivers/iommu/rockchip-iommu.c
	drivers/power/supply/rk817_charger.c
	drivers/scsi/sd.c
	include/linux/pci.h
2024-01-02 14:38:47 +08:00
Krister Johansen
5b2352c64c proc: sysctl: prevent aliased sysctls from getting passed to init
commit 8001f49394e353f035306a45bcf504f06fca6355 upstream.

The code that checks for unknown boot options is unaware of the sysctl
alias facility, which maps bootparams to sysctl values.  If a user sets
an old value that has a valid alias, a message about an invalid
parameter will be printed during boot, and the parameter will get passed
to init.  Fix by checking for the existence of aliased parameters in the
unknown boot parameter code.  If an alias exists, don't return an error
or pass the value to init.

Signed-off-by: Krister Johansen <kjlx@templeofstupid.com>
Cc: stable@vger.kernel.org
Fixes: 0a477e1ae2 ("kernel/sysctl: support handling command line aliases")
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-11-28 17:07:08 +00:00
Peter Zijlstra
051f5dcf14 x86/mm: Initialize text poking earlier
commit 5b93a83649c7cba3a15eb7e8959b250841acb1b1 upstream.

Move poking_init() up a bunch; specifically move it right after
mm_init() which is right before ftrace_init().

This will allow simplifying ftrace text poking which currently has
a bunch of exceptions for early boot.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20221025201057.881703081@infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-08-08 20:03:49 +02:00
Peter Zijlstra
e0fd83a193 mm: Move mm_cachep initialization to mm_init()
commit af80602799681c78f14fbe20b6185a56020dedee upstream.

In order to allow using mm_alloc() much earlier, move initializing
mm_cachep into mm_init().

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20221025201057.751153381@infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-08-08 20:03:49 +02:00
Thomas Gleixner
b0837880fa init, x86: Move mem_encrypt_init() into arch_cpu_finalize_init()
commit 439e17576eb47f26b78c5bbc72e344d4206d2327 upstream

Invoke the X86ism mem_encrypt_init() from X86 arch_cpu_finalize_init() and
remove the weak fallback from the core code.

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20230613224545.670360645@linutronix.de
Signed-off-by: Daniel Sneddon <daniel.sneddon@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-08-08 20:03:47 +02:00
Thomas Gleixner
8183a89caf init: Invoke arch_cpu_finalize_init() earlier
commit 9df9d2f0471b4c4702670380b8d8a45b40b23a7d upstream

X86 is reworking the boot process so that initializations which are not
required during early boot can be moved into the late boot process and out
of the fragile and restricted initial boot phase.

arch_cpu_finalize_init() is the obvious place to do such initializations,
but arch_cpu_finalize_init() is invoked too late in start_kernel() e.g. for
initializing the FPU completely. fork_init() requires that the FPU is
initialized as the size of task_struct on X86 depends on the size of the
required FPU register buffer.

Fortunately none of the init calls between calibrate_delay() and
arch_cpu_finalize_init() is relevant for the functionality of
arch_cpu_finalize_init().

Invoke it right after calibrate_delay() where everything which is relevant
for arch_cpu_finalize_init() has been set up already.

No functional change intended.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Link: https://lore.kernel.org/r/20230613224545.612182854@linutronix.de
Signed-off-by: Daniel Sneddon <daniel.sneddon@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-08-08 20:03:47 +02:00
Thomas Gleixner
a3342c60dc init: Remove check_bugs() leftovers
commit 61235b24b9cb37c13fcad5b9596d59a1afdcec30 upstream

Everything is converted over to arch_cpu_finalize_init(). Remove the
check_bugs() leftovers including the empty stubs in asm-generic, alpha,
parisc, powerpc and xtensa.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Link: https://lore.kernel.org/r/20230613224545.553215951@linutronix.de
Signed-off-by: Daniel Sneddon <daniel.sneddon@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-08-08 20:03:47 +02:00
Thomas Gleixner
d5501f2ff8 init: Provide arch_cpu_finalize_init()
commit 7725acaa4f0c04fbefb0e0d342635b967bb7d414 upstream

check_bugs() has become a dumping ground for all sorts of activities to
finalize the CPU initialization before running the rest of the init code.

Most are empty, a few do actual bug checks, some do alternative patching
and some cobble a CPU advertisement string together....

Aside of that the current implementation requires duplicated function
declaration and mostly empty header files for them.

Provide a new function arch_cpu_finalize_init(). Provide a generic
declaration if CONFIG_ARCH_HAS_CPU_FINALIZE_INIT is selected and a stub
inline otherwise.

This requires a temporary #ifdef in start_kernel() which will be removed
along with check_bugs() once the architectures are converted over.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20230613224544.957805717@linutronix.de
Signed-off-by: Daniel Sneddon <daniel.sneddon@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-08-08 20:03:46 +02:00
Tao Huang
daf2796321 Merge commit '52f971ee6e023d89d24f9e3cd145d86d707e459c'
* commit '52f971ee6e023d89d24f9e3cd145d86d707e459c': (84565 commits)
  arm64: dts: rockchip: rk3562: Enable viLKsvPwrActive for soc bus
  mtd: spi-nor: esmt: Support New devices
  mtd: spi-nor: fmsh: Support New devices
  mtd: spi-nor: gigadevice: Support New devices
  mtd: spinand: gsto: Add code
  mtd: spinand: hyf: Support new devices
  mmc: convert thunder boot dependency
  ARM: dts: rockchip: rv1106: add node for system sleep
  ARM: rockchip: support rv1106 suspend
  ARM: rockchip: add some pm-related functions
  video: rockchip: mpp: fix rk3528 avsd not probe issue
  arm64: dts: rockchip: rk3588-vehicle-maxim-serdes: Add BOE AV156FHT L83 support
  arm64: rockchip_defconfig: Enable CONFIG_DRM_PANEL_MAXIM_MAX96752F
  drm/panel: Add panel driver for Maxim MAX96752F based LCDs
  media: i2c: techpoint: add support 4 channel 2 lane mode
  drm/rockchip: dsi2: fix NULL in component_ops .unbind helper
  media: rockchip: vicap: fixes cma can not alloc when capture raw
  media: rockchip: vicap: fixed vc err for multi channel
  media: rockchip: hdmirx: fix timing info for interlaced resolution
  media: rockchip: hdmirx: fix code error for cec register failed
  ...

Change-Id: Ia7ac365455d87a295e62bbf481d80694a9712f30

Conflicts:
	.gitignore
	Documentation/devicetree/bindings/clock/rockchip,px30-cru.txt
	Documentation/devicetree/bindings/connector/usb-connector.yaml
	Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt
	Documentation/devicetree/bindings/hwmon/pwm-fan.txt
	Documentation/devicetree/bindings/iio/light/vl6180.txt
	Documentation/devicetree/bindings/iommu/rockchip,iommu.txt
	Documentation/devicetree/bindings/mtd/rockchip,nand-controller.yaml
	Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
	Documentation/devicetree/bindings/net/snps,dwmac.yaml
	Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.yaml
	Documentation/devicetree/bindings/power/rockchip-io-domain.txt
	Documentation/devicetree/bindings/regulator/fan53555.txt
	Documentation/devicetree/bindings/soc/rockchip/power_domain.txt
	Documentation/devicetree/bindings/sound/rockchip,pdm.yaml
	Documentation/devicetree/bindings/sound/rockchip-spdif.yaml
	Documentation/devicetree/bindings/spi/spi-rockchip.yaml
	Documentation/devicetree/bindings/thermal/rockchip-thermal.txt
	Documentation/devicetree/bindings/usb/usb-xhci.txt
	Documentation/filesystems/erofs.rst
	arch/arm/Kconfig
	arch/arm/Makefile
	arch/arm/boot/compressed/head.S
	arch/arm/boot/dts/rk3036.dtsi
	arch/arm/boot/dts/rk3066a-rayeager.dts
	arch/arm/boot/dts/rk3066a.dtsi
	arch/arm/boot/dts/rk322x.dtsi
	arch/arm/boot/dts/rk3288.dtsi
	arch/arm/boot/dts/rk3xxx.dtsi
	arch/arm64/boot/dts/rockchip/Makefile
	arch/arm64/boot/dts/rockchip/px30.dtsi
	arch/arm64/boot/dts/rockchip/rk3308.dtsi
	arch/arm64/boot/dts/rockchip/rk3399-opp.dtsi
	arch/arm64/boot/dts/rockchip/rk3399.dtsi
	arch/arm64/boot/dts/rockchip/rk3566.dtsi
	arch/arm64/boot/dts/rockchip/rk3568-pinctrl.dtsi
	arch/arm64/boot/dts/rockchip/rk3568.dtsi
	arch/arm64/boot/dts/rockchip/rockchip-pinconf.dtsi
	arch/arm64/kernel/process.c
	arch/arm64/mm/Makefile
	arch/arm64/mm/fault.c
	arch/arm64/mm/init.c
	drivers/Kconfig
	drivers/Makefile
	drivers/android/Kconfig
	drivers/ata/ahci_platform.c
	drivers/char/hw_random/Kconfig
	drivers/char/hw_random/Makefile
	drivers/clk/clk.c
	drivers/clk/rockchip/Kconfig
	drivers/clk/rockchip/Makefile
	drivers/clk/rockchip/clk-cpu.c
	drivers/clk/rockchip/clk-rk3036.c
	drivers/clk/rockchip/clk-rk3188.c
	drivers/clk/rockchip/clk-rk3308.c
	drivers/clk/rockchip/clk-rk3399.c
	drivers/clk/rockchip/clk-rk3568.c
	drivers/clk/rockchip/clk-rv1126.c
	drivers/clk/rockchip/clk.c
	drivers/clk/rockchip/clk.h
	drivers/cpufreq/cpufreq-dt.c
	drivers/crypto/Kconfig
	drivers/devfreq/Makefile
	drivers/devfreq/devfreq.c
	drivers/dma-buf/dma-buf.c
	drivers/dma-buf/heaps/Makefile
	drivers/dma/pl330.c
	drivers/firmware/Kconfig
	drivers/gpio/Kconfig
	drivers/gpio/Makefile
	drivers/gpio/gpio-rockchip.c
	drivers/gpu/Makefile
	drivers/gpu/drm/Kconfig
	drivers/gpu/drm/Makefile
	drivers/gpu/drm/bridge/Kconfig
	drivers/gpu/drm/bridge/Makefile
	drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
	drivers/gpu/drm/bridge/analogix/analogix_dp_core.h
	drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
	drivers/gpu/drm/bridge/display-connector.c
	drivers/gpu/drm/bridge/sii902x.c
	drivers/gpu/drm/bridge/synopsys/Makefile
	drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
	drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
	drivers/gpu/drm/drm_atomic_helper.c
	drivers/gpu/drm/drm_crtc_internal.h
	drivers/gpu/drm/drm_edid.c
	drivers/gpu/drm/panel/panel-simple.c
	drivers/gpu/drm/rockchip/Kconfig
	drivers/gpu/drm/rockchip/Makefile
	drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
	drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
	drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
	drivers/gpu/drm/rockchip/inno_hdmi.c
	drivers/gpu/drm/rockchip/rockchip_drm_drv.c
	drivers/gpu/drm/rockchip/rockchip_drm_drv.h
	drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c
	drivers/gpu/drm/rockchip/rockchip_drm_gem.c
	drivers/gpu/drm/rockchip/rockchip_drm_vop.c
	drivers/gpu/drm/rockchip/rockchip_drm_vop.h
	drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
	drivers/gpu/drm/rockchip/rockchip_lvds.c
	drivers/gpu/drm/rockchip/rockchip_rgb.c
	drivers/gpu/drm/rockchip/rockchip_vop2_reg.c
	drivers/gpu/drm/rockchip/rockchip_vop_reg.c
	drivers/gpu/drm/rockchip/rockchip_vop_reg.h
	drivers/hwmon/pwm-fan.c
	drivers/hwspinlock/Kconfig
	drivers/hwspinlock/Makefile
	drivers/i2c/busses/i2c-rk3x.c
	drivers/i2c/i2c-core-base.c
	drivers/iio/adc/Kconfig
	drivers/iio/adc/rockchip_saradc.c
	drivers/iio/industrialio-event.c
	drivers/input/touchscreen/Makefile
	drivers/iommu/iommu.c
	drivers/iommu/rockchip-iommu.c
	drivers/irqchip/irq-gic-v3-its.c
	drivers/leds/Makefile
	drivers/mailbox/Kconfig
	drivers/media/common/videobuf2/Makefile
	drivers/media/i2c/Kconfig
	drivers/media/i2c/Makefile
	drivers/media/i2c/dw9714.c
	drivers/media/i2c/hi556.c
	drivers/media/i2c/imx214.c
	drivers/media/i2c/imx258.c
	drivers/media/i2c/imx334.c
	drivers/media/i2c/imx335.c
	drivers/media/i2c/ov5648.c
	drivers/media/i2c/ov5670.c
	drivers/media/i2c/ov5695.c
	drivers/media/i2c/ov7251.c
	drivers/media/platform/Kconfig
	drivers/media/platform/Makefile
	drivers/media/platform/rockchip/Kconfig
	drivers/media/spi/Kconfig
	drivers/media/spi/Makefile
	drivers/media/usb/uvc/uvc_driver.c
	drivers/media/usb/uvc/uvcvideo.h
	drivers/media/v4l2-core/v4l2-async.c
	drivers/media/v4l2-core/v4l2-ioctl.c
	drivers/mfd/rk808.c
	drivers/mmc/core/block.c
	drivers/mmc/core/host.c
	drivers/mmc/core/mmc.c
	drivers/mmc/core/mmc_ops.c
	drivers/mmc/host/Makefile
	drivers/mmc/host/dw_mmc-rockchip.c
	drivers/mmc/host/dw_mmc.c
	drivers/mmc/host/dw_mmc.h
	drivers/mmc/host/sdhci-of-dwcmshc.c
	drivers/mtd/nand/Makefile
	drivers/mtd/nand/raw/Kconfig
	drivers/mtd/nand/raw/Makefile
	drivers/mtd/nand/raw/rockchip-nand-controller.c
	drivers/mtd/nand/spi/Makefile
	drivers/mtd/nand/spi/core.c
	drivers/mtd/nand/spi/gigadevice.c
	drivers/mtd/nand/spi/macronix.c
	drivers/mtd/nand/spi/xtx.c
	drivers/mtd/spi-nor/Kconfig
	drivers/mtd/spi-nor/Makefile
	drivers/mtd/spi-nor/core.c
	drivers/mtd/spi-nor/core.h
	drivers/mtd/spi-nor/eon.c
	drivers/mtd/spi-nor/esmt.c
	drivers/mtd/spi-nor/gigadevice.c
	drivers/mtd/spi-nor/macronix.c
	drivers/mtd/spi-nor/winbond.c
	drivers/mtd/spi-nor/xmc.c
	drivers/net/ethernet/stmicro/stmmac/Makefile
	drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
	drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
	drivers/net/ethernet/stmicro/stmmac/stmmac.h
	drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
	drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
	drivers/net/phy/Kconfig
	drivers/net/phy/motorcomm.c
	drivers/net/phy/phy_device.c
	drivers/nvmem/Kconfig
	drivers/nvmem/Makefile
	drivers/pci/controller/dwc/Makefile
	drivers/pci/controller/dwc/pcie-designware-host.c
	drivers/pci/controller/dwc/pcie-dw-rockchip.c
	drivers/pci/controller/pcie-rockchip-host.c
	drivers/pci/controller/pcie-rockchip.h
	drivers/pci/pci-sysfs.c
	drivers/pci/pcie/Makefile
	drivers/phy/rockchip/Kconfig
	drivers/phy/rockchip/Makefile
	drivers/phy/rockchip/phy-rockchip-inno-dsidphy.c
	drivers/phy/rockchip/phy-rockchip-inno-usb2.c
	drivers/phy/rockchip/phy-rockchip-naneng-combphy.c
	drivers/phy/rockchip/phy-rockchip-snps-pcie3.c
	drivers/phy/rockchip/phy-rockchip-typec.c
	drivers/pinctrl/Kconfig
	drivers/pinctrl/Makefile
	drivers/pinctrl/pinctrl-rk805.c
	drivers/pinctrl/pinctrl-rockchip.c
	drivers/pinctrl/pinctrl-rockchip.h
	drivers/power/supply/Kconfig
	drivers/power/supply/Makefile
	drivers/power/supply/bq25890_charger.c
	drivers/power/supply/rk817_charger.c
	drivers/pwm/core.c
	drivers/pwm/pwm-rockchip.c
	drivers/regulator/fan53555.c
	drivers/regulator/rk808-regulator.c
	drivers/rtc/rtc-hym8563.c
	drivers/soc/rockchip/Kconfig
	drivers/soc/rockchip/Makefile
	drivers/soc/rockchip/grf.c
	drivers/soc/rockchip/io-domain.c
	drivers/soc/rockchip/pm_domains.c
	drivers/spi/Kconfig
	drivers/spi/spi-rockchip-sfc.c
	drivers/spi/spi-rockchip.c
	drivers/spi/spidev.c
	drivers/staging/android/ion/heaps/ion_system_heap.c
	drivers/thermal/rockchip_thermal.c
	drivers/tty/serial/8250/8250_dma.c
	drivers/tty/serial/8250/8250_dw.c
	drivers/tty/serial/8250/8250_dwlib.c
	drivers/tty/serial/8250/8250_port.c
	drivers/usb/dwc2/platform.c
	drivers/usb/dwc3/core.c
	drivers/usb/dwc3/core.h
	drivers/usb/dwc3/ep0.c
	drivers/usb/dwc3/gadget.c
	drivers/usb/gadget/configfs.c
	drivers/usb/gadget/function/f_fs.c
	drivers/usb/gadget/function/f_uvc.c
	drivers/usb/gadget/function/uvc.h
	drivers/usb/gadget/function/uvc_configfs.c
	drivers/usb/gadget/function/uvc_queue.c
	drivers/usb/gadget/function/uvc_v4l2.c
	drivers/usb/gadget/function/uvc_video.c
	drivers/usb/gadget/udc/core.c
	drivers/usb/host/ehci-hcd.c
	drivers/usb/host/ehci-platform.c
	drivers/usb/storage/unusual_uas.h
	drivers/usb/typec/altmodes/Kconfig
	drivers/usb/typec/altmodes/displayport.c
	drivers/usb/typec/class.c
	drivers/usb/typec/tcpm/tcpm.c
	fs/Kconfig
	fs/cifs/inode.c
	fs/dax.c
	fs/erofs/data.c
	fs/erofs/inode.c
	fs/erofs/internal.h
	fs/erofs/super.c
	fs/f2fs/super.c
	fs/fuse/dev.c
	include/drm/bridge/dw_hdmi.h
	include/drm/drm_connector.h
	include/drm/drm_edid.h
	include/dt-bindings/clock/rk3568-cru.h
	include/dt-bindings/power/rk3568-power.h
	include/dt-bindings/power/rk3588-power.h
	include/linux/clk-provider.h
	include/linux/cma.h
	include/linux/dma-buf.h
	include/linux/dma-heap.h
	include/linux/mfd/rk808.h
	include/linux/mtd/spi-nor.h
	include/linux/mtd/spinand.h
	include/linux/phy/pcie.h
	include/linux/pwm.h
	include/linux/sched/sysctl.h
	include/linux/slub_def.h
	include/linux/stmmac.h
	include/linux/usb/typec.h
	include/media/v4l2-async.h
	include/soc/rockchip/pm_domains.h
	include/uapi/drm/drm_fourcc.h
	include/uapi/linux/iio/types.h
	include/uapi/linux/media-bus-format.h
	init/Kconfig
	init/main.c
	kernel/printk/printk.c
	kernel/rcu/Kconfig.debug
	kernel/rcu/tree_stall.h
	kernel/sched/core.c
	kernel/sched/cpufreq_schedutil.c
	kernel/sched/fair.c
	kernel/sched/pelt.c
	kernel/sched/rt.c
	kernel/sched/sched.h
	kernel/softirq.c
	kernel/sysctl.c
	mm/Makefile
	mm/cma.c
	mm/page_alloc.c
	mm/slub.c
	scripts/.gitignore
	scripts/headers_install.sh
	sound/soc/codecs/Kconfig
	sound/soc/codecs/Makefile
	sound/soc/codecs/es8326.c
	sound/soc/codecs/es8326.h
	sound/soc/codecs/hdmi-codec.c
	sound/soc/codecs/rk817_codec.c
	sound/soc/rockchip/Kconfig
	sound/soc/rockchip/Makefile
	sound/soc/rockchip/rockchip_i2s.c
	sound/soc/rockchip/rockchip_i2s_tdm.c
	sound/soc/rockchip/rockchip_i2s_tdm.h
	sound/soc/rockchip/rockchip_pdm.c
	sound/soc/rockchip/rockchip_spdif.c
	sound/soc/soc-generic-dmaengine-pcm.c
	tools/iio/iio_event_monitor.c
2023-05-20 18:57:29 +08:00
Tao Huang
cc17504307 Merge tag 'android12-5.10-2023-02_r1' of https://android.googlesource.com/kernel/common
android12-5.10 February 2023 release 1

Artifacts:
  https://ci.android.com/builds/submitted/9611440/kernel_aarch64/latest

* tag 'android12-5.10-2023-02_r1': (5560 commits)
  ANDROID: GKI: Enable ARM64_ERRATUM_2454944
  ANDROID: dma-ops: Add restricted vendor hook
  ANDROID: arm64: Work around Cortex-A510 erratum 2454944
  ANDROID: mm/vmalloc: Add override for lazy vunmap
  ANDROID: cpuidle-psci: Fix suspicious RCU usage
  ANDROID: ABI: update allowed list for galaxy
  FROMGIT: f2fs: add sysfs nodes to set last_age_weight
  FROMGIT: f2fs: fix wrong calculation of block age
  ANDROID: struct io_uring ABI preservation hack for 5.10.162 changes
  ANDROID: fix up struct task_struct ABI change in 5.10.162
  ANDROID: add flags variable back to struct proto_ops
  UPSTREAM: io_uring: pass in EPOLL_URING_WAKE for eventfd signaling and wakeups
  UPSTREAM: eventfd: provide a eventfd_signal_mask() helper
  UPSTREAM: eventpoll: add EPOLL_URING_WAKE poll wakeup flag
  UPSTREAM: Revert "proc: don't allow async path resolution of /proc/self components"
  UPSTREAM: Revert "proc: don't allow async path resolution of /proc/thread-self components"
  UPSTREAM: net: remove cmsg restriction from io_uring based send/recvmsg calls
  UPSTREAM: task_work: unconditionally run task_work from get_signal()
  UPSTREAM: signal: kill JOBCTL_TASK_WORK
  UPSTREAM: io_uring: import 5.15-stable io_uring
  ...

Change-Id: I2b16474d6e3a91f1d702486ec6d1565a7bc310e3

Conflicts:
	Documentation/ABI/testing/configfs-usb-gadget-uac2
	Documentation/usb/gadget-testing.rst
	Makefile
	arch/arm/boot/dts/rk3288-evb-act8846.dts
	arch/arm64/mm/Makefile
	drivers/dma-buf/dma-buf.c
	drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
	drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
	drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
	drivers/gpu/drm/rockchip/rockchip_drm_vop.c
	drivers/mmc/core/mmc.c
	drivers/pci/controller/dwc/pcie-designware-host.c
	drivers/pinctrl/pinctrl-rockchip.c
	drivers/regulator/core.c
	drivers/usb/dwc3/ep0.c
	drivers/usb/dwc3/gadget.c
	drivers/usb/gadget/function/f_hid.c
	drivers/usb/gadget/function/f_uac1.c
	drivers/usb/gadget/function/f_uac2.c
	drivers/usb/gadget/function/u_audio.c
	drivers/usb/gadget/function/u_audio.h
	drivers/usb/gadget/function/u_uac2.h
	drivers/usb/host/xhci.h
	drivers/usb/storage/unusual_uas.h
	drivers/usb/typec/altmodes/displayport.c
	include/linux/page_ext.h
	mm/cma.c
	mm/page_ext.c
	sound/core/pcm_dmaengine.c
	sound/soc/codecs/hdmi-codec.c
	include/linux/stmmac.h
	sound/drivers/aloop.c
	drivers/pci/controller/dwc/pcie-designware.h
2023-03-14 09:44:51 +08:00
Linus Torvalds
676cb49573 Merge tag 'mm-nonmm-stable-2022-10-11' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:

 - hfs and hfsplus kmap API modernization (Fabio Francesco)

 - make crash-kexec work properly when invoked from an NMI-time panic
   (Valentin Schneider)

 - ntfs bugfixes (Hawkins Jiawei)

 - improve IPC msg scalability by replacing atomic_t's with percpu
   counters (Jiebin Sun)

 - nilfs2 cleanups (Minghao Chi)

 - lots of other single patches all over the tree!

* tag 'mm-nonmm-stable-2022-10-11' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (71 commits)
  include/linux/entry-common.h: remove has_signal comment of arch_do_signal_or_restart() prototype
  proc: test how it holds up with mapping'less process
  mailmap: update Frank Rowand email address
  ia64: mca: use strscpy() is more robust and safer
  init/Kconfig: fix unmet direct dependencies
  ia64: update config files
  nilfs2: replace WARN_ONs by nilfs_error for checkpoint acquisition failure
  fork: remove duplicate included header files
  init/main.c: remove unnecessary (void*) conversions
  proc: mark more files as permanent
  nilfs2: remove the unneeded result variable
  nilfs2: delete unnecessary checks before brelse()
  checkpatch: warn for non-standard fixes tag style
  usr/gen_init_cpio.c: remove unnecessary -1 values from int file
  ipc/msg: mitigate the lock contention with percpu counter
  percpu: add percpu_counter_add_local and percpu_counter_sub_local
  fs/ocfs2: fix repeated words in comments
  relay: use kvcalloc to alloc page array in relay_alloc_page_array
  proc: make config PROC_CHILDREN depend on PROC_FS
  fs: uninline inode_maybe_inc_iversion()
  ...
2022-10-12 11:00:22 -07:00
Linus Torvalds
27bc50fc90 Merge tag 'mm-stable-2022-10-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:

 - Yu Zhao's Multi-Gen LRU patches are here. They've been under test in
   linux-next for a couple of months without, to my knowledge, any
   negative reports (or any positive ones, come to that).

 - Also the Maple Tree from Liam Howlett. An overlapping range-based
   tree for vmas. It it apparently slightly more efficient in its own
   right, but is mainly targeted at enabling work to reduce mmap_lock
   contention.

   Liam has identified a number of other tree users in the kernel which
   could be beneficially onverted to mapletrees.

   Yu Zhao has identified a hard-to-hit but "easy to fix" lockdep splat
   at [1]. This has yet to be addressed due to Liam's unfortunately
   timed vacation. He is now back and we'll get this fixed up.

 - Dmitry Vyukov introduces KMSAN: the Kernel Memory Sanitizer. It uses
   clang-generated instrumentation to detect used-unintialized bugs down
   to the single bit level.

   KMSAN keeps finding bugs. New ones, as well as the legacy ones.

 - Yang Shi adds a userspace mechanism (madvise) to induce a collapse of
   memory into THPs.

 - Zach O'Keefe has expanded Yang Shi's madvise(MADV_COLLAPSE) to
   support file/shmem-backed pages.

 - userfaultfd updates from Axel Rasmussen

 - zsmalloc cleanups from Alexey Romanov

 - cleanups from Miaohe Lin: vmscan, hugetlb_cgroup, hugetlb and
   memory-failure

 - Huang Ying adds enhancements to NUMA balancing memory tiering mode's
   page promotion, with a new way of detecting hot pages.

 - memcg updates from Shakeel Butt: charging optimizations and reduced
   memory consumption.

 - memcg cleanups from Kairui Song.

 - memcg fixes and cleanups from Johannes Weiner.

 - Vishal Moola provides more folio conversions

 - Zhang Yi removed ll_rw_block() :(

 - migration enhancements from Peter Xu

 - migration error-path bugfixes from Huang Ying

 - Aneesh Kumar added ability for a device driver to alter the memory
   tiering promotion paths. For optimizations by PMEM drivers, DRM
   drivers, etc.

 - vma merging improvements from Jakub Matěn.

 - NUMA hinting cleanups from David Hildenbrand.

 - xu xin added aditional userspace visibility into KSM merging
   activity.

 - THP & KSM code consolidation from Qi Zheng.

 - more folio work from Matthew Wilcox.

 - KASAN updates from Andrey Konovalov.

 - DAMON cleanups from Kaixu Xia.

 - DAMON work from SeongJae Park: fixes, cleanups.

 - hugetlb sysfs cleanups from Muchun Song.

 - Mike Kravetz fixes locking issues in hugetlbfs and in hugetlb core.

Link: https://lkml.kernel.org/r/CAOUHufZabH85CeUN-MEMgL8gJGzJEWUrkiM58JkTbBhh-jew0Q@mail.gmail.com [1]

* tag 'mm-stable-2022-10-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (555 commits)
  hugetlb: allocate vma lock for all sharable vmas
  hugetlb: take hugetlb vma_lock when clearing vma_lock->vma pointer
  hugetlb: fix vma lock handling during split vma and range unmapping
  mglru: mm/vmscan.c: fix imprecise comments
  mm/mglru: don't sync disk for each aging cycle
  mm: memcontrol: drop dead CONFIG_MEMCG_SWAP config symbol
  mm: memcontrol: use do_memsw_account() in a few more places
  mm: memcontrol: deprecate swapaccounting=0 mode
  mm: memcontrol: don't allocate cgroup swap arrays when memcg is disabled
  mm/secretmem: remove reduntant return value
  mm/hugetlb: add available_huge_pages() func
  mm: remove unused inline functions from include/linux/mm_inline.h
  selftests/vm: add selftest for MADV_COLLAPSE of uffd-minor memory
  selftests/vm: add file/shmem MADV_COLLAPSE selftest for cleared pmd
  selftests/vm: add thp collapse shmem testing
  selftests/vm: add thp collapse file and tmpfs testing
  selftests/vm: modularize thp collapse memory operations
  selftests/vm: dedup THP helpers
  mm/khugepaged: add tracepoint to hpage_collapse_scan_file()
  mm/madvise: add file and shmem support to MADV_COLLAPSE
  ...
2022-10-10 17:53:04 -07:00
Zhou jie
374d6cda79 init/main.c: remove unnecessary (void*) conversions
The void pointer object can be directly assigned to different structure
objects, it does not need to be cast.

Link: https://lkml.kernel.org/r/20220928014539.11046-1-zhoujie@nfschina.com
Signed-off-by: Zhou jie <zhoujie@nfschina.com>
Reviewed-by: Andrew Halaney <ahalaney@redhat.com>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-10-03 14:21:45 -07:00
Alexander Potapenko
3c20650982 init: kmsan: call KMSAN initialization routines
kmsan_init_shadow() scans the mappings created at boot time and creates
metadata pages for those mappings.

When the memblock allocator returns pages to pagealloc, we reserve 2/3 of
those pages and use them as metadata for the remaining 1/3.  Once KMSAN
starts, every page allocated by pagealloc has its associated shadow and
origin pages.

kmsan_initialize() initializes the bookkeeping for init_task and enables
KMSAN.

Link: https://lkml.kernel.org/r/20220915150417.722975-18-glider@google.com
Signed-off-by: Alexander Potapenko <glider@google.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Eric Biggers <ebiggers@google.com>
Cc: Eric Biggers <ebiggers@kernel.org>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Ilya Leoshkevich <iii@linux.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Marco Elver <elver@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Vegard Nossum <vegard.nossum@oracle.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-10-03 14:03:21 -07:00
Jason A. Donenfeld
f62384995e random: split initialization into early step and later step
The full RNG initialization relies on some timestamps, made possible
with initialization functions like time_init() and timekeeping_init().
However, these are only available rather late in initialization.
Meanwhile, other things, such as memory allocator functions, make use of
the RNG much earlier.

So split RNG initialization into two phases. We can provide arch
randomness very early on, and then later, after timekeeping and such are
available, initialize the rest.

This ensures that, for example, slabs are properly randomized if RDRAND
is available. Without this, CONFIG_SLAB_FREELIST_RANDOM=y loses a degree
of its security, because its random seed is potentially deterministic,
since it hasn't yet incorporated RDRAND. It also makes it possible to
use a better seed in kfence, which currently relies on only the cycle
counter.

Another positive consequence is that on systems with RDRAND, running
with CONFIG_WARN_ALL_UNSEEDED_RANDOM=y results in no warnings at all.

One subtle side effect of this change is that on systems with no RDRAND,
RDTSC is now only queried by random_init() once, committing the moment
of the function call, instead of multiple times as before. This is
intentional, as the multiple RDTSCs in a loop before weren't
accomplishing very much, with jitter being better provided by
try_to_generate_entropy(). Plus, filling blocks with RDTSC is still
being done in extract_entropy(), which is necessarily called before
random bytes are served anyway.

Cc: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2022-09-29 21:36:27 +02:00
Liam R. Howlett
54a611b605 Maple Tree: add new data structure
Patch series "Introducing the Maple Tree"

The maple tree is an RCU-safe range based B-tree designed to use modern
processor cache efficiently.  There are a number of places in the kernel
that a non-overlapping range-based tree would be beneficial, especially
one with a simple interface.  If you use an rbtree with other data
structures to improve performance or an interval tree to track
non-overlapping ranges, then this is for you.

The tree has a branching factor of 10 for non-leaf nodes and 16 for leaf
nodes.  With the increased branching factor, it is significantly shorter
than the rbtree so it has fewer cache misses.  The removal of the linked
list between subsequent entries also reduces the cache misses and the need
to pull in the previous and next VMA during many tree alterations.

The first user that is covered in this patch set is the vm_area_struct,
where three data structures are replaced by the maple tree: the augmented
rbtree, the vma cache, and the linked list of VMAs in the mm_struct.  The
long term goal is to reduce or remove the mmap_lock contention.

The plan is to get to the point where we use the maple tree in RCU mode.
Readers will not block for writers.  A single write operation will be
allowed at a time.  A reader re-walks if stale data is encountered.  VMAs
would be RCU enabled and this mode would be entered once multiple tasks
are using the mm_struct.

Davidlor said

: Yes I like the maple tree, and at this stage I don't think we can ask for
: more from this series wrt the MM - albeit there seems to still be some
: folks reporting breakage.  Fundamentally I see Liam's work to (re)move
: complexity out of the MM (not to say that the actual maple tree is not
: complex) by consolidating the three complimentary data structures very
: much worth it considering performance does not take a hit.  This was very
: much a turn off with the range locking approach, which worst case scenario
: incurred in prohibitive overhead.  Also as Liam and Matthew have
: mentioned, RCU opens up a lot of nice performance opportunities, and in
: addition academia[1] has shown outstanding scalability of address spaces
: with the foundation of replacing the locked rbtree with RCU aware trees.

A similar work has been discovered in the academic press

	https://pdos.csail.mit.edu/papers/rcuvm:asplos12.pdf

Sheer coincidence.  We designed our tree with the intention of solving the
hardest problem first.  Upon settling on a b-tree variant and a rough
outline, we researched ranged based b-trees and RCU b-trees and did find
that article.  So it was nice to find reassurances that we were on the
right path, but our design choice of using ranges made that paper unusable
for us.

This patch (of 70):

The maple tree is an RCU-safe range based B-tree designed to use modern
processor cache efficiently.  There are a number of places in the kernel
that a non-overlapping range-based tree would be beneficial, especially
one with a simple interface.  If you use an rbtree with other data
structures to improve performance or an interval tree to track
non-overlapping ranges, then this is for you.

The tree has a branching factor of 10 for non-leaf nodes and 16 for leaf
nodes.  With the increased branching factor, it is significantly shorter
than the rbtree so it has fewer cache misses.  The removal of the linked
list between subsequent entries also reduces the cache misses and the need
to pull in the previous and next VMA during many tree alterations.

The first user that is covered in this patch set is the vm_area_struct,
where three data structures are replaced by the maple tree: the augmented
rbtree, the vma cache, and the linked list of VMAs in the mm_struct.  The
long term goal is to reduce or remove the mmap_lock contention.

The plan is to get to the point where we use the maple tree in RCU mode.
Readers will not block for writers.  A single write operation will be
allowed at a time.  A reader re-walks if stale data is encountered.  VMAs
would be RCU enabled and this mode would be entered once multiple tasks
are using the mm_struct.

There is additional BUG_ON() calls added within the tree, most of which
are in debug code.  These will be replaced with a WARN_ON() call in the
future.  There is also additional BUG_ON() calls within the code which
will also be reduced in number at a later date.  These exist to catch
things such as out-of-range accesses which would crash anyways.

Link: https://lkml.kernel.org/r/20220906194824.2110408-1-Liam.Howlett@oracle.com
Link: https://lkml.kernel.org/r/20220906194824.2110408-2-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Tested-by: David Howells <dhowells@redhat.com>
Tested-by: Sven Schnelle <svens@linux.ibm.com>
Tested-by: Yu Zhao <yuzhao@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: David Hildenbrand <david@redhat.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: SeongJae Park <sj@kernel.org>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-09-26 19:46:13 -07:00
Wolfram Sang
a1d3a6d9f2 init: move from strlcpy with unused retval to strscpy
Follow the advice of the below link and prefer 'strscpy' in this
subsystem.  Conversion is 1:1 because the return value is not used. 
Generated by a coccinelle script.

Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Link: https://lkml.kernel.org/r/20220818210200.8203-1-wsa+renesas@sang-engineering.com
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-09-11 21:55:10 -07:00
Li Zhe
c4f20f1479 page_ext: introduce boot parameter 'early_page_ext'
In commit 2f1ee0913c ("Revert "mm: use early_pfn_to_nid in
page_ext_init""), we call page_ext_init() after page_alloc_init_late() to
avoid some panic problem.  It seems that we cannot track early page
allocations in current kernel even if page structure has been initialized
early.

This patch introduces a new boot parameter 'early_page_ext' to resolve
this problem.  If we pass it to the kernel, page_ext_init() will be moved
up and the feature 'deferred initialization of struct pages' will be
disabled to initialize the page allocator early and prevent the panic
problem above.  It can help us to catch early page allocations.  This is
useful especially when we find that the free memory value is not the same
right after different kernel booting.

[akpm@linux-foundation.org: fix section issue by removing __meminitdata]
Link: https://lkml.kernel.org/r/20220825102714.669-1-lizhe.67@bytedance.com
Signed-off-by: Li Zhe <lizhe.67@bytedance.com>
Suggested-by: Michal Hocko <mhocko@suse.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mark-PK Tsai <mark-pk.tsai@mediatek.com>
Cc: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-09-11 20:26:02 -07:00