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Nicholas Piggin 13224794cb mm: remove quicklist page table caches 
Patch series "mm: remove quicklist page table caches".

A while ago Nicholas proposed to remove quicklist page table caches [1].

I've rebased his patch on the curren upstream and switched ia64 and sh to
use generic versions of PTE allocation.

[1] https://lore.kernel.org/linux-mm/20190711030339.20892-1-npiggin@gmail.com

This patch (of 3):

Remove page table allocator "quicklists".  These have been around for a
long time, but have not got much traction in the last decade and are only
used on ia64 and sh architectures.

The numbers in the initial commit look interesting but probably don't
apply anymore.  If anybody wants to resurrect this it's in the git
history, but it's unhelpful to have this code and divergent allocator
behaviour for minor archs.

Also it might be better to instead make more general improvements to page
allocator if this is still so slow.

Link: http://lkml.kernel.org/r/1565250728-21721-2-git-send-email-rppt@linux.ibm.com
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2019-09-24 15:54:09 -07:00
..
Kbuild treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
asm-offsets.h kbuild: move asm-offsets.h to include/generated 2009-12-12 13:08:14 +01:00
asm-uaccess.h get rid of legacy 'get_ds()' function 2019-03-04 10:50:14 -08:00
asmmacro.h xtensa: abstract 'entry' and 'retw' in assembly code 2019-07-08 10:04:48 -07:00
atomic.h xtensa: add exclusive atomics support 2019-05-07 10:36:31 -07:00
barrier.h xtensa: add exclusive atomics support 2019-05-07 10:36:31 -07:00
bitops.h xtensa: add exclusive atomics support 2019-05-07 10:36:31 -07:00
bootparam.h xtensa: split bootparam and kernel meminfo 2014-04-02 01:35:51 +04:00
bugs.h
…
cache.h xtensa: replace variant/core.h with asm/core.h 2019-05-06 17:48:55 -07:00
cacheasm.h xtensa: increase ranges in ___invalidate_{i,d}cache_all 2018-08-13 20:08:01 -07:00
cacheflush.h docs: Fix some broken references 2018-06-15 18:10:01 -03:00
checksum.h xtensa: replace variant/core.h with asm/core.h 2019-05-06 17:48:55 -07:00
cmpxchg.h xtensa: add exclusive atomics support 2019-05-07 10:36:31 -07:00
coprocessor.h xtensa: replace variant/core.h with asm/core.h 2019-05-06 17:48:55 -07:00
core.h xtensa: implement initialize_cacheattr for MPU cores 2019-05-07 10:36:34 -07:00
current.h xtensa: consolidate kernel stack size related definitions 2017-12-10 14:48:55 -08:00
delay.h xtensa: implement ndelay 2014-01-15 00:28:11 +04:00
dma.h Fix common misspellings 2011-03-31 11:26:23 -03:00
elf.h xtensa: enable CORE_DUMP_USE_REGSET 2018-12-17 13:48:22 -08:00
fixmap.h xtensa: move fixmap and kmap just above the KSEG 2017-12-16 22:37:12 -08:00
flat.h binfmt_flat: remove the persistent argument from flat_get_addr_from_rp 2019-06-24 09:16:47 +10:00
ftrace.h ftrace: Make CALLER_ADDRx macros more generic 2014-05-21 03:10:32 -04:00
futex.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
highmem.h xtensa: move fixmap and kmap just above the KSEG 2017-12-16 22:37:12 -08:00
hw_breakpoint.h perf/hw_breakpoint: Remove default hw_breakpoint_arch_parse() 2018-06-26 09:07:58 +02:00
hw_irq.h
…
initialize_mmu.h docs: xtensa: convert to ReST 2019-07-15 09:20:26 -03:00
io.h xtensa: virt: move PCI root complex to KIO range 2019-09-02 00:09:30 -07:00
irq.h xtensa: replace variant/core.h with asm/core.h 2019-05-06 17:48:55 -07:00
irqflags.h xtensa: replace CONFIG_DEBUG_KERNEL with CONFIG_DEBUG_MISC 2019-05-14 19:52:50 -07:00
jump_label.h xtensa: implement jump_label support 2018-12-20 14:44:38 -08:00
kasan.h xtensa: fix build with KASAN 2018-02-11 09:18:12 -08:00
kmem_layout.h xtensa: platform-specific handling of coherent memory 2018-07-11 15:59:41 -07:00
linkage.h xtensa: clean up functions in assembly code 2017-12-10 14:48:54 -08:00
mmu.h xtensa: add SMP support 2014-01-14 10:19:58 -08:00
mmu_context.h xtensa: extract init_kio 2017-12-16 22:37:10 -08:00
module.h Make most arch asm/module.h files use asm-generic/module.h 2012-09-28 14:31:03 +09:30
mxregs.h xtensa: add MX irqchip 2014-01-14 10:19:58 -08:00
nommu_context.h xtensa: extract init_kio 2017-12-16 22:37:10 -08:00
page.h xtensa: rework {CONFIG,PLATFORM}_DEFAULT_MEM_START 2018-08-20 12:28:03 -07:00
pci-bridge.h xtensa: drop ifdef __KERNEL__ from kernel-only headers 2019-05-06 17:48:54 -07:00
pci.h xtensa: drop ifdef __KERNEL__ from kernel-only headers 2019-05-06 17:48:54 -07:00
perf_event.h xtensa: enable HAVE_PERF_EVENTS 2014-01-15 00:27:03 +04:00
pgalloc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
pgtable.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
platform.h xtensa: drop dead PCI support code 2019-06-16 23:31:28 -07:00
processor.h xtensa: add support for call0 ABI in userspace 2019-09-01 13:11:57 -07:00
ptrace.h xtensa: replace variant/core.h with asm/core.h 2019-05-06 17:48:55 -07:00
regs.h xtensa: clean up PS_WOE_BIT usage 2019-09-01 13:11:57 -07:00
serial.h
…
shmparam.h
…
signal.h consolidate kernel-side struct sigaction declarations 2013-02-03 15:09:22 -05:00
smp.h xtensa: implement CPU hotplug 2014-01-14 10:19:59 -08:00
spinlock.h xtensa: use generic spinlock/rwlock implementation 2019-02-07 12:24:20 -08:00
spinlock_types.h xtensa: use generic spinlock/rwlock implementation 2019-02-07 12:24:20 -08:00
stackprotector.h xtensa: enable stack protector 2017-12-16 22:37:07 -08:00
stacktrace.h xtensa: move oprofile stack tracing to stacktrace.c 2015-08-17 07:32:49 +03:00
string.h xtensa: shut up gcc-8 warnings 2018-01-02 03:25:41 -08:00
switch_to.h Disintegrate asm/system.h for Xtensa 2012-03-28 18:30:03 +01:00
syscall.h audit/stable-5.2 PR 20190507 2019-05-07 19:06:04 -07:00
sysmem.h xtensa: drop sysmem and switch to memblock 2016-07-24 06:34:00 +03:00
thread_info.h xtensa: drop unused definitions 2019-02-07 12:35:02 -08:00
timex.h xtensa: clean up WSR*/RSR*/get_sr/set_sr 2018-12-04 14:08:11 -08:00
tlb.h arch/tlb: Clean up simple architectures 2019-04-03 10:32:54 +02:00
tlbflush.h mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
traps.h xtensa: drop unused field from the struct exc_table 2018-12-03 01:39:22 -08:00
uaccess.h get rid of legacy 'get_ds()' function 2019-03-04 10:50:14 -08:00
ucontext.h
…
unaligned.h
…
unistd.h arch: handle arches who do not yet define clone3 2019-06-21 01:54:53 +02:00
user.h
…
vectors.h xtensa: replace variant/core.h with asm/core.h 2019-05-06 17:48:55 -07:00