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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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.. | ||
arcregs.h | ||
asm-offsets.h | ||
asserts.h | ||
atomic.h | ||
barrier.h | ||
bitops.h | ||
bug.h | ||
cache.h | ||
cacheflush.h | ||
checksum.h | ||
cmpxchg.h | ||
current.h | ||
delay.h | ||
disasm.h | ||
dma.h | ||
dsp-impl.h | ||
dsp.h | ||
dwarf.h | ||
elf.h | ||
entry-arcv2.h | ||
entry-compact.h | ||
entry.h | ||
exec.h | ||
fb.h | ||
fpu.h | ||
futex.h | ||
highmem.h | ||
hugepage.h | ||
io.h | ||
irq.h | ||
irqflags-arcv2.h | ||
irqflags-compact.h | ||
irqflags.h | ||
jump_label.h | ||
Kbuild | ||
kdebug.h | ||
kgdb.h | ||
kmap_types.h | ||
kprobes.h | ||
linkage.h | ||
mach_desc.h | ||
mmu.h | ||
mmu_context.h | ||
mmzone.h | ||
module.h | ||
page.h | ||
pci.h | ||
perf_event.h | ||
pgalloc.h | ||
pgtable.h | ||
processor.h | ||
ptrace.h | ||
sections.h | ||
segment.h | ||
serial.h | ||
setup.h | ||
shmparam.h | ||
smp.h | ||
spinlock.h | ||
spinlock_types.h | ||
stacktrace.h | ||
string.h | ||
switch_to.h | ||
syscall.h | ||
syscalls.h | ||
thread_info.h | ||
timex.h | ||
tlb-mmu1.h | ||
tlb.h | ||
tlbflush.h | ||
uaccess.h | ||
unaligned.h | ||
unwind.h | ||
vermagic.h | ||
vmalloc.h |