mpage: Use writeback_iter() instead of write_cache_pages()

Using the iterator directly adds a little type safety, converts
an indirect call into a direct call and may allow the compiler
to inline __mpage_writepage() into mpage_writepages().

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>

fs: Remove aops->writepage

All callers and implementations are now removed, so remove the operation
and update the documentation to match.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>

mm: Remove swap_writepage() and shmem_writepage()

Call swap_writeout() and shmem_writeout() from pageout() instead.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>

ttm: Call shmem_writeout() from ttm_backup_backup_page()

The ->writepage operation is being removed.  Since this function
exclusively deals with shmem folios, we can call shmem_writeout()
to write it.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>

i915: Use writeback_iter()

Convert from an inefficient loop to the standard writeback iterator.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>

shmem: Add shmem_writeout()

This will be the replacement for shmem_writepage().

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>

writeback: Remove writeback_use_writepage()

The ->writepage operation is going away.  Remove this alternative to
calling ->writepages.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>

migrate: Remove call to ->writepage

The writepage callback is going away; filesystems must implement
migrate_folio or else dirty folios will not be migratable.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>

vboxsf: Convert to writepages

If we add a migrate_folio operation, we can convert the writepage
operation to writepages.  Further, this lets us optimise by using
the same write handle for multiple folios.  The large folio support here
is illusory; we would need to kmap each page in turn for proper support.
But we do remove a few hidden calls to compound_head().

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>

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