intel_th: avoid using deprecated page->mapping, index fields

The struct page->mapping, index fields are deprecated and soon to be only
available as part of a folio.

It is likely the intel_th code which sets page->mapping, index is was
implemented out of concern that some aspect of the page fault logic may
encounter unexpected problems should they not.

However, the appropriate interface for inserting kernel-allocated memory is
vm_insert_page() in a VM_MIXEDMAP. By using the helper function
vmf_insert_mixed() we can do this with minimal churn in the existing fault
handler.

By doing so, we bypass the remainder of the faulting logic. The pages are
still pinned so there is no possibility of anything unexpected being done
with the pages once established.

It would also be reasonable to pre-map everything on fault, however to
minimise churn we retain the fault handler.

We also eliminate all code which clears page->mapping on teardown as this
has now become unnecessary.

The MSU code relies on faulting to function correctly, so is by definition
dependent on CONFIG_MMU. We avoid spurious reports about compilation
failure for unsupported platforms by making this requirement explicit in
Kconfig as part of this change too.

Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>

Add linux-next specific files for 20250317

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

Revert "pidfs: ensure that PIDFS_INFO_EXIT is available"

This reverts commit b0f4119d8b2a680c8cd019f41c64e8b5444c6b83.

Merge branch 'crc-next' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux.git

Merge branch 'next' of https://git.kernel.org/pub/scm/linux/kernel/git/wufan/ipe.git

Merge branch 'caps-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sergeh/linux.git

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux.git

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd.git

Merge branch 'for-next/kspp' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git

Merge branch 'bitmap-for-next' of https://github.com/norov/linux.git

Merge branch 'for-next/execve' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git

Merge branch 'sysctl-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sysctl/sysctl.git

# Conflicts:
# include/linux/mm.h
# kernel/sysctl.c
# mm/filemap.c

Merge branch 'hrtimer-next' of https://github.com/Rust-for-Linux/linux.git

next-20250314/rust

# Conflicts:
# drivers/gpu/drm/drm_panic_qr.rs

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux.git

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random.git

Merge branch 'slab/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab.git

# Conflicts:
# kernel/rcu/tiny.c

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git

Merge branch 'hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-auxdisplay.git

Merge branch 'hyperv-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux.git

Merge branch 'main' of git://git.infradead.org/users/willy/xarray.git

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/srini/nvmem.git

Merge branch 'for-next/seccomp' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git

Merge branch 'ntb-next' of https://github.com/jonmason/ntb.git

Merge branch 'libnvdimm-for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm.git

Merge branch 'rtc-next' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux.git

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching

Merge branch 'kunit' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git

# Conflicts:
# lib/Makefile

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git

Merge branch 'pwm/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux.git

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/samsung.git

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git

Merge branch 'gpio/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux.git

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux.git

Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git

# Conflicts:
# arch/arm64/boot/dts/rockchip/rk3576.dtsi
# drivers/scsi/scsi_debug.c

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine.git

# Conflicts:
# Documentation/devicetree/bindings/misc/atmel-ssc.txt

gpio: da9055: use new line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250310-gpiochip-set-conversion-v1-15-03798bb833eb@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: da9052: use new line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250310-gpiochip-set-conversion-v1-14-03798bb833eb@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: cs5535: use new line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250310-gpiochip-set-conversion-v1-13-03798bb833eb@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: crystalcove: use new line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250310-gpiochip-set-conversion-v1-12-03798bb833eb@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: cros-ec: use new line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Link: https://lore.kernel.org/r/20250310-gpiochip-set-conversion-v1-11-03798bb833eb@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: creg-snps: use new line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250310-gpiochip-set-conversion-v1-10-03798bb833eb@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: cgbc: use new line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250310-gpiochip-set-conversion-v1-9-03798bb833eb@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: bt8xx: use new line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250310-gpiochip-set-conversion-v1-8-03798bb833eb@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: bt8xx: use lock guards

Reduce the code complexity by using automatic lock guards with the
spinlock.

Link: https://lore.kernel.org/r/20250310-gpiochip-set-conversion-v1-7-03798bb833eb@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: bt8xx: allow to build the module with COMPILE_TEST=y

Link: https://lore.kernel.org/r/20250310-gpiochip-set-conversion-v1-6-03798bb833eb@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: bd9571mwv: use new line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com>
Link: https://lore.kernel.org/r/20250310-gpiochip-set-conversion-v1-5-03798bb833eb@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: bd71828: use new line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com>
Link: https://lore.kernel.org/r/20250310-gpiochip-set-conversion-v1-4-03798bb833eb@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: bd71815: use new line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com>
Link: https://lore.kernel.org/r/20250310-gpiochip-set-conversion-v1-3-03798bb833eb@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: bcm-kona: use new line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250310-gpiochip-set-conversion-v1-2-03798bb833eb@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: bcm-kona: use lock guards

Reduce the code complexity by using automatic lock guards with the raw
spinlock.

Link: https://lore.kernel.org/r/20250310-gpiochip-set-conversion-v1-1-03798bb833eb@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Merge tag 'v6.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into gpio/for-next

Linux 6.14-rc7

Merge branch 'staging-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git

Merge branch 'spmi-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sboyd/spmi.git

Merge branch 'next' of git://github.com/awilliam/linux-vfio.git

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire.git

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy.git

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/coresight/linux.git

Merge branch 'char-misc-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git

# Conflicts:
# drivers/regulator/dummy.c

Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git

Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial.git

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt.git

Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git

Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git

Merge branch 'for-leds-next' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds.git

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi.git

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux.git

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext.git

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git

Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git

Merge branch 'next' of https://github.com/kvm-x86/linux.git

Merge branch 'riscv_kvm_next' of https://github.com/kvm-riscv/linux.git

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git

# Conflicts:
# arch/arm64/kernel/cpufeature.c
# arch/arm64/kernel/proton-pack.c
# arch/arm64/kvm/arm.c
# arch/arm64/kvm/hypercalls.c
# drivers/perf/apple_m1_cpu_pmu.c

Merge branch 'non-rcu/next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux.git

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace.git

# Conflicts:
# include/linux/module.h

Merge branch 'edac-for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras.git

Merge branch 'timers/drivers/next' of https://git.linaro.org/people/daniel.lezcano/linux.git

next-20250303/tip

# Conflicts:
# arch/riscv/include/asm/io.h
# arch/x86/kernel/paravirt.c
# arch/x86/mm/pgtable.c
# drivers/gpu/drm/i915/i915_pmu.c
# drivers/mailbox/mailbox.c
# lib/vdso/datastore.c
# net/core/dev.c

Merge tag 'w1-drv-6.15' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/krzk/linux-w1 into char-misc-next

Krzysztof writes:

1-Wire bus drivers for v6.14

1. W1 UART: Fix theoretical NULL pointer dereference in probe due to
   serdev ops being set too late.  That's said such scenario is unlikely
   to happen as serdev read would need to happen before writing
   anything.

2. W1 therm: Simplify with HWMON_CHANNEL_INFO.

* tag 'w1-drv-6.15' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/krzk/linux-w1:
  w1: w1_therm: w1: Use HWMON_CHANNEL_INFO macro to simplify code
  w1: fix NULL pointer dereference in probe

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox.git

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-dt.git

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git

# Conflicts:
# drivers/of/of_private.h

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux.git

Merge branch 'master' of git://www.linux-watchdog.org/linux-watchdog-next.git

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd.git

Merge branch 'next' of git://github.com/cschaufler/smack-next

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux.git

Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity

Merge branch 'apparmor-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm.git

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply.git