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linux/drivers
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Mathieu Desnoyers 902ccb86ed dax: fix incorrect list of data cache aliasing architectures 
commit d92576f116 ("dax: does not work correctly with virtual aliasing caches")
prevents DAX from building on architectures with virtually aliased
dcache with:

  depends on !(ARM || MIPS || SPARC)

This check is too broad (e.g. recent ARMv7 don't have virtually aliased
dcaches), and also misses many other architectures with virtually
aliased data cache.

This is a regression introduced in the v4.0 Linux kernel where the
dax mount option is removed for 32-bit ARMv7 boards which have no data
cache aliasing, and therefore should work fine with FS_DAX.

This was turned into the following check in alloc_dax() by a preparatory
change:

        if (ops && (IS_ENABLED(CONFIG_ARM) ||
            IS_ENABLED(CONFIG_MIPS) ||
            IS_ENABLED(CONFIG_SPARC)))
                return NULL;

Use cpu_dcache_is_aliasing() instead to figure out whether the environment
has aliasing data caches.

Link: https://lkml.kernel.org/r/20240215144633.96437-10-mathieu.desnoyers@efficios.com
Fixes: d92576f116 ("dax: does not work correctly with virtual aliasing caches")
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Alasdair Kergon <agk@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: kernel test robot <lkp@intel.com>
Cc: Michael Sclafani <dm-devel@lists.linux.dev>
Cc: Mike Snitzer <snitzer@kernel.org>
Cc: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-02-22 15:27:20 -08:00
..
accel accel/ivpu: Fix DevTLB errors on suspend/resume and recovery 2024-02-12 09:00:44 +01:00
accessibility
acpi cxl/cper: Fix errant CPER prints for CXL events 2024-02-03 18:31:17 +01:00
amba
android binder: signal epoll threads of self-work 2024-01-31 14:08:28 -08:00
ata ahci: Extend ASM1061 43-bit DMA address quirk to other ASM106x parts 2024-01-31 12:09:34 +01:00
atm atm: idt77252: fix a memleak in open_card_ubr0 2024-02-03 12:46:13 +00:00
auxdisplay drm-next for 6.8: 2024-01-12 11:32:19 -08:00
base mm and cache_info: remove unnecessary CPU cache info update 2024-02-22 10:24:41 -08:00
bcma
block zram: do not allocate physically contiguous strm buffers 2024-02-22 10:24:59 -08:00
bluetooth USB / Thunderbolt changes for 6.8-rc1 2024-01-18 11:43:55 -08:00
bus Char/Misc and other Driver changes for 6.8-rc1 2024-01-17 16:47:17 -08:00
cache
cdrom
cdx cdx: Unlock on error path in rescan_store() 2024-01-04 17:01:14 +01:00
char TTY/Serial changes for 6.8-rc1 2024-01-18 11:37:24 -08:00
clk clk: qcom: gcc-x1e80100: Replace of_device.h with explicit includes 2024-01-19 08:17:28 -06:00
clocksource clocksource/drivers/ep93xx: Fix error handling during probe 2023-12-27 15:37:11 +01:00
comedi
connector connector/cn_proc: revert "connector: Fix proc_event_num_listeners count not cleared" 2024-02-13 11:15:44 +01:00
counter
cpufreq cpufreq/amd-pstate: Fix setting scaling max/min freq values 2024-01-22 20:35:58 +01:00
cpuidle x86/mm: delete unused cpu argument to leave_mm() 2024-02-22 10:24:41 -08:00
crypto crypto: ccp - Fix null pointer dereference in __sev_platform_shutdown_locked 2024-02-02 18:08:12 +08:00
cxl EFI fixes for v6.8 #1 2024-02-09 10:40:50 -08:00
dax dax: fix incorrect list of data cache aliasing architectures 2024-02-22 15:27:20 -08:00
dca
devfreq
dio
dma dmaengine: at_hdmac: add missing kernel-doc style description 2024-02-02 17:16:55 +01:00
dma-buf dma-buf: heaps: Don't track CMA dma-buf pages under RssFile 2024-01-31 19:54:58 +05:30
dpll dpll: fix possible deadlock during netlink dump operation 2024-02-08 18:29:21 -08:00
edac Driver core changes for 6.8-rc1 2024-01-18 09:48:40 -08:00
eisa
extcon
firewire firewire: core: send bus reset promptly on gap count error 2024-02-07 08:20:02 +09:00
firmware EFI fixes for v6.8 #1 2024-02-09 10:40:50 -08:00
fpga Char/Misc and other Driver changes for 6.8-rc1 2024-01-17 16:47:17 -08:00
fsi
gnss TTY/Serial changes for 6.8-rc1 2024-01-18 11:37:24 -08:00
gpio gpio: remove GPIO device from the list unconditionally in error path 2024-02-08 10:33:03 +01:00
gpu Merge tag 'drm-msm-fixes-2024-02-15' of https://gitlab.freedesktop.org/drm/msm into drm-fixes 2024-02-16 15:47:15 +10:00
greybus TTY/Serial changes for 6.8-rc1 2024-01-18 11:37:24 -08:00
hid HID: wacom: generic: Avoid reporting a serial of '0' to userspace 2024-02-13 11:40:23 +01:00
hsi
hte
hv
hwmon hwmon: (coretemp) Enlarge per package core count limit 2024-02-04 06:43:45 -08:00
hwspinlock
hwtracing
i2c i2c: i801: Fix block process call transactions 2024-02-14 22:15:38 +01:00
i3c i3c: master: cdns: Update maximum prescaler value for i2c clock 2024-01-08 00:51:36 +01:00
idle Power management updates for 6.8-rc1 2024-01-09 16:32:11 -08:00
iio iio: adc: ad4130: only set GPIO_CTRL if pin is unused 2024-02-10 16:52:39 +00:00
infiniband RDMA v6.8 merge window 2024-01-12 13:52:21 -08:00
input Input updates for v6.8-rc2 2024-02-02 12:52:44 -08:00
interconnect interconnect: qcom: x1e80100: Add missing ACV enable_mask 2024-02-04 23:36:06 +02:00
iommu iommu: Allow ops->default_domain to work when !CONFIG_IOMMU_DMA 2024-02-01 13:16:17 +01:00
ipack TTY/Serial changes for 6.8-rc1 2024-01-18 11:37:24 -08:00
irqchip irqchip/gic-v3-its: Fix GICv4.1 VPE affinity update 2024-02-13 11:29:52 +01:00
isdn
leds - New Drivers 2024-01-17 15:25:27 -08:00
macintosh
mailbox mediatek: add CMDQ support for mt8188 2024-01-17 15:39:32 -08:00
mcb
md dm: treat alloc_dax() -EOPNOTSUPP failure as non-fatal 2024-02-22 15:27:19 -08:00
media media: pwm-ir-tx: Depend on CONFIG_HIGH_RES_TIMERS 2024-02-01 13:49:39 +01:00
memory IOMMU Updates for Linux v6.8 2024-01-18 15:16:57 -08:00
memstick
message
mfd TTY/Serial changes for 6.8-rc1 2024-01-18 11:37:24 -08:00
misc misc: open-dice: Fix spurious lockdep warning 2024-01-30 16:20:54 -08:00
mmc mmc: slot-gpio: Allow non-sleeping GPIO ro 2024-02-06 12:35:44 +01:00
most
mtd This pull request contains updates for UBI and UBIFS: 2024-01-17 10:27:13 -08:00
mux mux: mmio: use reg property when parent device is not a syscon 2024-01-04 17:01:14 +01:00
net Merge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue 2024-02-15 08:06:51 -08:00
nfc
ntb
nubus nubus: Make nubus_bus_type static and constant 2024-01-03 13:33:59 +01:00
nvdimm nvdimm/pmem: Treat alloc_dax() -EOPNOTSUPP failure as non-fatal 2024-02-22 15:27:19 -08:00
nvme nvmet: remove superfluous initialization 2024-02-13 15:42:44 -08:00
nvmem nvmem: include bit index in cell sysfs file name 2024-02-14 16:28:16 +01:00
of Devicetree fixes for v6.8: 2024-02-15 10:19:55 -08:00
opp OPP: Rename 'rate_clk_single' 2024-01-05 15:55:41 +05:30
parisc parisc/power: Fix power soft-off button emulation on qemu 2024-01-07 22:59:16 +01:00
parport
pci pci-v6.8-fixes-3 2024-02-17 08:06:20 -08:00
pcmcia
peci
perf perf/arm-cmn: Workaround AmpereOneX errata AC04_MESH_1 (incorrect child count) 2024-02-09 17:14:04 +00:00
phy phy: ti: phy-omap-usb2: Fix NULL pointer dereference for SRP 2024-01-30 22:41:11 +05:30
pinctrl pinctrl: amd: Add IRQF_ONESHOT to the interrupt request 2024-01-31 10:06:07 +01:00
platform platform/x86: touchscreen_dmi: Add info for the TECLAST X16 Plus tablet 2024-01-26 20:21:47 +01:00
pmdomain pmdomain: mediatek: fix race conditions with genpd 2024-01-23 13:19:15 +01:00
pnp More ACPI updates for 6.8-rc1 2024-01-17 14:37:40 -08:00
power Revert "power: supply: qcom_battmgr: Register the power supplies after PDR is up" 2024-01-26 22:45:58 +01:00
powercap
pps
ps3
ptp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-01-04 18:06:46 -08:00
pwm pwm: jz4740: Don't use dev_err_probe() in .request() 2024-01-12 18:25:05 +01:00
rapidio rapidio/tsi721: fix kernel-doc warnings 2023-12-20 15:02:57 -08:00
ras
regulator regulator (max5970): Fix IRQ handler 2024-01-30 15:27:16 +00:00
remoteproc
reset SoC: driver updates for 6.8 2024-01-11 11:31:46 -08:00
rpmsg
rtc rtc: nuvoton: Compatible with NCT3015Y-R and NCT3018Y-R 2024-01-18 01:05:33 +01:00
s390 dcssblk: handle alloc_dax() -EOPNOTSUPP failure 2024-02-22 15:27:19 -08:00
sbus
scsi scsi: fnic: Move fnic_fnic_flush_tx() to a work queue 2024-02-12 20:50:07 -05:00
sh maple: make maple_bus_type static and const 2024-01-04 14:37:17 +01:00
siox
slimbus
soc soc: apple: mailbox: error pointers are negative integers 2024-01-30 11:34:49 -08:00
soundwire soundwire updates for 6.7 2024-01-18 17:08:31 -08:00
spi spi-mxs: Fix chipselect glitch 2024-02-13 15:48:22 +00:00
spmi
ssb
staging Char/Misc changes for 6.8-rc5 2024-02-17 08:52:38 -08:00
target scsi: target: Fix unmap setup during configuration 2024-02-12 20:42:00 -05:00
tc
tee Another moderately busy cycle for documentation, including: 2024-01-11 19:46:52 -08:00
thermal thermal: intel: powerclamp: Remove dead code for target mwait value 2024-01-22 11:59:22 +01:00
thunderbolt thunderbolt: Fix setting the CNS bit in ROUTER_CS_5 2024-01-29 09:48:40 +02:00
tty serial: mxs-auart: fix tx 2024-02-06 14:42:11 +00:00
ufs scsi: ufs: core: Remove the ufshcd_release() in ufshcd_err_handling_prepare() 2024-02-05 16:31:18 -05:00
uio uio: Fix use-after-free in uio_open 2024-01-04 17:03:47 +01:00
usb Revert "usb: dwc3: Support EBC feature of DWC_usb31" 2024-02-09 10:26:08 +00:00
vdpa virtio: features, fixes 2024-01-18 16:44:03 -08:00
vfio VFIO updates for v6.8-rc1 2024-01-18 15:57:25 -08:00
vhost virtio: features, fixes 2024-01-18 16:44:03 -08:00
video fbdev: stifb: Fix crash in stifb_blank() 2024-01-23 09:13:24 +01:00
virt Char/Misc and other Driver changes for 6.8-rc1 2024-01-17 16:47:17 -08:00
virtio virtio: features, fixes 2024-01-18 16:44:03 -08:00
w1 w1: ds2433: add support for ds28ec20 eeprom 2023-12-20 09:25:25 +01:00
watchdog linux-watchdog 6.8-rc1 tag 2024-01-12 13:32:30 -08:00
xen xen/events: close evtchn after mapping cleanup 2024-02-13 10:12:47 +01:00
zorro
Kconfig
Makefile fbdev/intelfb: Remove driver 2024-01-12 12:38:37 +01:00