linux/include
Paolo Bonzini 3f9fbe7031 mm: provide a saner PTE walking API for modules
commit 9fd6dad1261a541b3f5fa7dc5b152222306e6702 upstream.

Currently, the follow_pfn function is exported for modules but
follow_pte is not.  However, follow_pfn is very easy to misuse,
because it does not provide protections (so most of its callers
assume the page is writable!) and because it returns after having
already unlocked the page table lock.

Provide instead a simplified version of follow_pte that does
not have the pmdpp and range arguments.  The older version
survives as follow_invalidate_pte() for use by fs/dax.c.

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-26 10:10:28 +01:00
..
acpi PM: ACPI: PCI: Drop acpi_pm_set_bridge_wakeup() 2020-12-30 11:51:32 +01:00
asm-generic firmware_loader: align .builtin_fw to 8 2021-02-17 10:35:18 +01:00
clocksource
crypto crypto: algif_aead - Only wake up when ctx->more is zero 2020-08-21 13:05:30 +02:00
drm iommu/vt-d: Move intel_iommu_gfx_mapped to Intel IOMMU header 2020-11-24 13:29:17 +01:00
dt-bindings
keys KEYS: Don't write out to userspace while holding key semaphore 2020-04-23 10:36:45 +02:00
kvm
linux mm: provide a saner PTE walking API for modules 2021-02-26 10:10:28 +01:00
math-emu
media media: v4l2-fwnode: Return -EINVAL for invalid bus-type 2020-12-30 11:51:08 +01:00
misc
net net: sched: replaced invalid qdisc tree flush helper in qdisc_replace 2021-02-10 09:25:33 +01:00
pcmcia
ras
rdma RDMA/umem: Fix signature of stub ib_umem_find_best_pgsz() 2020-10-29 09:57:47 +01:00
scsi scsi: libiscsi: Fix NOP race condition 2020-12-02 08:49:49 +01:00
soc irqchip/eznps: Fix build error for !ARC700 builds 2020-09-17 13:47:47 +02:00
sound ALSA: hda: fix jack detection with Realtek codecs when in D3 2020-10-29 09:57:25 +01:00
target
trace writeback: Drop I_DIRTY_TIME_EXPIRE 2021-01-30 13:54:11 +01:00
uapi ICMPv6: Add ICMPv6 Parameter Problem, code 3 definition 2021-02-03 23:25:55 +01:00
vdso
video
xen Xen/gntdev: correct error checking in gntdev_map_grant_pages() 2021-02-23 15:02:26 +01:00