974b9b2c68
All architectures define pte_index() as (address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1) and all architectures define pte_offset_kernel() as an entry in the array of PTEs indexed by the pte_index(). For the most architectures the pte_offset_kernel() implementation relies on the availability of pmd_page_vaddr() that converts a PMD entry value to the virtual address of the page containing PTEs array. Let's move x86 definitions of the PTE accessors to the generic place in <linux/pgtable.h> and then simply drop the respective definitions from the other architectures. The architectures that didn't provide pmd_page_vaddr() are updated to have that defined. The generic implementation of pte_offset_kernel() can be overridden by an architecture and alpha makes use of this because it has special ordering requirements for its version of pte_offset_kernel(). [rppt@linux.ibm.com: v2] Link: http://lkml.kernel.org/r/20200514170327.31389-11-rppt@kernel.org [rppt@linux.ibm.com: update] Link: http://lkml.kernel.org/r/20200514170327.31389-12-rppt@kernel.org [rppt@linux.ibm.com: update] Link: http://lkml.kernel.org/r/20200514170327.31389-13-rppt@kernel.org [akpm@linux-foundation.org: fix x86 warning] [sfr@canb.auug.org.au: fix powerpc build] Link: http://lkml.kernel.org/r/20200607153443.GB738695@linux.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Cain <bcain@codeaurora.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Zankel <chris@zankel.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Ungerer <gerg@linux-m68k.org> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Guo Ren <guoren@kernel.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Ley Foon Tan <ley.foon.tan@intel.com> Cc: Mark Salter <msalter@redhat.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Nick Hu <nickhu@andestech.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Richard Weinberger <richard@nod.at> Cc: Rich Felker <dalias@libc.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vincent Chen <deanbo422@gmail.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Will Deacon <will@kernel.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Link: http://lkml.kernel.org/r/20200514170327.31389-10-rppt@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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.. | ||
bitops | ||
vdso | ||
asm-offsets.h | ||
asm-prototypes.h | ||
atomic64.h | ||
atomic-instrumented.h | ||
atomic-long.h | ||
atomic.h | ||
audit_change_attr.h | ||
audit_dir_write.h | ||
audit_read.h | ||
audit_signal.h | ||
audit_write.h | ||
barrier.h | ||
bitops.h | ||
bitsperlong.h | ||
bug.h | ||
bugs.h | ||
cache.h | ||
cacheflush.h | ||
checksum.h | ||
cmpxchg-local.h | ||
cmpxchg.h | ||
compat.h | ||
current.h | ||
delay.h | ||
device.h | ||
div64.h | ||
dma-contiguous.h | ||
dma-mapping.h | ||
dma.h | ||
early_ioremap.h | ||
emergency-restart.h | ||
error-injection.h | ||
exec.h | ||
export.h | ||
extable.h | ||
fb.h | ||
fixmap.h | ||
flat.h | ||
ftrace.h | ||
futex.h | ||
getorder.h | ||
gpio.h | ||
hardirq.h | ||
hugetlb.h | ||
hw_irq.h | ||
hyperv-tlfs.h | ||
ide_iops.h | ||
int-ll64.h | ||
io.h | ||
ioctl.h | ||
iomap.h | ||
irq_regs.h | ||
irq_work.h | ||
irq.h | ||
irqflags.h | ||
Kbuild | ||
kdebug.h | ||
kmap_types.h | ||
kprobes.h | ||
kvm_para.h | ||
linkage.h | ||
local64.h | ||
local.h | ||
mcs_spinlock.h | ||
memory_model.h | ||
mm_hooks.h | ||
mm-arch-hooks.h | ||
mmiowb_types.h | ||
mmiowb.h | ||
mmu_context.h | ||
mmu.h | ||
module.h | ||
mshyperv.h | ||
msi.h | ||
page.h | ||
param.h | ||
parport.h | ||
pci_iomap.h | ||
pci.h | ||
percpu.h | ||
pgalloc.h | ||
pgtable_uffd.h | ||
pgtable-nop4d.h | ||
pgtable-nopmd.h | ||
pgtable-nopud.h | ||
preempt.h | ||
qrwlock_types.h | ||
qrwlock.h | ||
qspinlock_types.h | ||
qspinlock.h | ||
resource.h | ||
seccomp.h | ||
sections.h | ||
serial.h | ||
set_memory.h | ||
shmparam.h | ||
signal.h | ||
simd.h | ||
spinlock.h | ||
statfs.h | ||
string.h | ||
switch_to.h | ||
syscall.h | ||
syscalls.h | ||
termios-base.h | ||
termios.h | ||
timex.h | ||
tlb.h | ||
tlbflush.h | ||
topology.h | ||
trace_clock.h | ||
uaccess.h | ||
unaligned.h | ||
user.h | ||
vermagic.h | ||
vga.h | ||
vmlinux.lds.h | ||
vtime.h | ||
word-at-a-time.h | ||
xor.h |