linux/arch
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
..
alpha mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
arc mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
arm mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
arm64 mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
c6x dma-mapping: remove CONFIG_ARCH_NO_COHERENT_DMA_MMAP 2019-09-04 11:13:18 +02:00
csky mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
h8300
hexagon mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
ia64 mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
m68k mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
microblaze mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
mips mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
nds32 mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
nios2 mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
openrisc mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
parisc mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
powerpc mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
riscv mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
s390 mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
sh mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
sparc mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
um mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
unicore32 mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
x86 mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
xtensa mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
.gitignore
Kconfig powerpc updates for 5.4 2019-09-20 11:48:06 -07:00