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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
..
fpu License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
trace License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kbuild Remove Mysterious Macro Intended to Obscure Weird Behaviours (mmiowb()) 2019-05-06 16:57:52 -07:00
airq.h s390/airq: use DMA memory for adapter interrupts 2019-06-15 12:25:05 +02:00
alternative-asm.h s390: add assembler macros for CPU alternatives 2018-03-28 08:38:27 +02:00
alternative.h s390: add a few more SPDX identifiers 2017-12-05 07:51:09 +01:00
ap.h s390/zcrypt: Fix wrong dispatching for control domain CPRBs 2019-05-28 14:49:38 +02:00
appldata.h s390/appldata: pass parameter list pointer to appldata_asm 2018-10-09 11:20:50 +02:00
archrandom.h s390/archrandom: Rework arch random implementation. 2018-05-30 11:18:04 +02:00
asm-prototypes.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
atomic.h locking/atomic, s390: Use s64 for atomic64 2019-06-03 12:32:56 +02:00
atomic_ops.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2017-11-13 11:47:01 -08:00
barrier.h s390: add optimized array_index_mask_nospec 2018-02-05 07:51:41 +01:00
bitops.h s390/kasan: add bitops instrumentation 2019-07-23 10:46:14 +02:00
boot_data.h s390/ipl: read IPL report at early boot 2019-04-26 12:34:05 +02:00
bug.h s390/bug: add entry size to the __bug_table section 2019-05-02 13:54:11 +02:00
bugs.h s390: add a few more SPDX identifiers 2017-12-05 07:51:09 +01:00
cache.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ccwdev.h s390/cio: add basic protected virtualization support 2019-06-15 12:25:00 +02:00
ccwgroup.h s390/ccwgroup: add get_ccwgroupdev_by_busid() 2018-10-08 09:09:59 +02:00
checksum.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
chpid.h s390/cio: rename struct channel_path_desc 2018-03-26 16:13:11 +02:00
cio.h s390/cio: move struct node_descriptor to cio.h 2019-06-19 17:54:27 +02:00
clp.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cmb.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cmpxchg.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
compat.h asm-generic: Move common compat types to asm-generic/compat.h 2018-08-29 15:42:20 +02:00
cpacf.h s390/crypto: Support for SHA3 via CPACF (MSA6) 2019-09-13 12:18:50 +02:00
cpcmd.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cpu.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cpu_mcf.h s390/cpum_cf_diag: Add support for s390 counter facility diagnostic trace 2019-02-22 09:19:56 +01:00
cpu_mf-insn.h s390/cpu_mf: add store cpu counter multiple instruction support 2019-02-22 09:19:52 +01:00
cpu_mf.h s390/cpu_mf: replace stcctm5() with the stcctm() function 2019-02-22 09:19:53 +01:00
cpufeature.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cputime.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
crw.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
css_chars.h s390/cio: sanitize css_general_characteristics definition 2018-06-12 15:14:05 +02:00
ctl_reg.h arch: replace _BITUL() in kernel-space headers with BIT() 2019-07-16 19:23:22 -07:00
current.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
debug.h docs: s390: unify and update s390dbf kdocs at debug.c 2019-07-05 13:42:22 +02:00
delay.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
diag.h s390/kernel: introduce .dma sections 2019-04-29 10:47:10 +02:00
dis.h s390/tools: generate header files in arch/s390/include/generated/ 2018-01-23 07:36:53 +01:00
dma.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dwarf.h s390/vdso: revise CFI annotations of vDSO functions 2017-12-13 10:51:36 +01:00
eadm.h s390/eadm: fix CONFIG_BLOCK include dependency 2018-02-02 10:47:14 +01:00
ebcdic.h s390: fix clang -Wpointer-sign warnigns in boot code 2019-05-03 17:17:58 +02:00
elf.h s390: report new CPU capabilities 2019-04-25 15:34:10 +02:00
exec.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
extable.h s390/kernel: introduce .dma sections 2019-04-29 10:47:10 +02:00
extmem.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
facility.h s390: fix stfle zero padding 2019-06-19 17:54:27 +02:00
fcx.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ftrace.h s390/ftrace: use HAVE_FUNCTION_GRAPH_RET_ADDR_PTR 2019-05-02 13:54:11 +02:00
futex.h s390: remove all code using the access register mode 2017-11-14 11:01:47 +01:00
gmap.h s390/mm: use refcount_t for refcount 2019-08-21 12:41:43 +02:00
hardirq.h softirq/s390: Move default mutators of overwritten softirq mask to s390 2018-05-14 11:25:28 +02:00
hugetlb.h hugetlb: allow to free gigantic pages regardless of the configuration 2019-05-14 09:47:47 -07:00
hw_irq.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
idals.h s390/idal: use struct_size() in kmalloc() 2019-06-04 15:03:18 +02:00
idle.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
io.h s390/pci: provide support for MIO instructions 2019-04-29 10:47:01 +02:00
ipl.h s390/kernel: introduce .dma sections 2019-04-29 10:47:10 +02:00
irq.h s390/pci: gather statistics for floating vs directed irqs 2019-04-29 10:47:01 +02:00
irqflags.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
isc.h KVM: s390: add gib_alert_irq_handler() 2019-02-05 14:29:23 +01:00
itcw.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
jump_label.h s390/jump_label: Use "jdd" constraint on gcc9 2019-02-20 09:48:26 +01:00
kasan.h s390/kasan: add option for 4-level paging support 2018-10-09 11:21:29 +02:00
kdebug.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
kexec.h s390/kernel: build a relocatable kernel 2019-04-29 10:47:10 +02:00
kprobes.h s390/kprobes: Remove jprobe implementation 2018-06-21 12:33:10 +02:00
kvm_host.h ARM: 2019-07-12 15:35:14 -07:00
kvm_para.h KVM: Introduce paravirtualization hints and KVM_HINTS_DEDICATED 2018-03-06 18:40:44 +01:00
linkage.h s390/kernel: introduce .dma sections 2019-04-29 10:47:10 +02:00
livepatch.h livepatch: Remove klp_check_compiler_support() 2019-05-10 17:53:29 -04:00
lowcore.h s390: fix clang -Wpointer-sign warnigns in boot code 2019-05-03 17:17:58 +02:00
mem_detect.h s390/mem_detect: provide single get_mem_detect_end 2019-08-26 12:51:18 +02:00
mem_encrypt.h s390/mm: Remove sev_active() function 2019-08-09 22:52:11 +10:00
mmu.h s390/vdso: avoid 64-bit vdso mapping for compat tasks 2018-09-20 13:20:29 +02:00
mmu_context.h s390/vdso: correct vdso mapping for compat tasks 2019-01-11 17:12:02 +01:00
mmzone.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
module.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nmi.h arch: replace _BITUL() in kernel-space headers with BIT() 2019-07-16 19:23:22 -07:00
nospec-branch.h s390: correct nospec auto detection init order 2018-04-11 17:46:00 +02:00
nospec-insn.h s390/nospec: rename assembler generated expoline thunks 2019-05-02 13:54:11 +02:00
numa.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
os_info.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
page-states.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
page.h s390/dma: provide proper ARCH_ZONE_DMA_BITS value 2019-07-26 13:36:12 +02:00
pci.h s390/pci: deal with devices that have no support for MIO instructions 2019-07-04 13:13:57 +02:00
pci_clp.h s390/pci: fix struct definition for set PCI function 2019-05-28 14:49:29 +02:00
pci_debug.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2017-11-13 11:47:01 -08:00
pci_dma.h s390: move s390_pci_dma_ops to asm/pci_dma.h 2018-01-10 16:41:19 +01:00
pci_insn.h s390: fix setting of mio addressing control 2019-07-11 20:40:02 +02:00
pci_io.h s390/pci: move io address mapping code to pci_insn.c 2019-04-29 10:47:01 +02:00
percpu.h s390: enforce CONFIG_SMP 2019-06-07 10:09:37 +02:00
perf_event.h s390/cpum_cf_diag: Add support for s390 counter facility diagnostic trace 2019-02-22 09:19:56 +01:00
pgalloc.h mm: treewide: remove unused address argument from pte_alloc functions 2019-01-04 13:13:47 -08:00
pgtable.h mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
pkey.h s390/pkey: pkey cleanup: narrow in-kernel API, fix some variable types 2019-08-21 12:58:53 +02:00
pnet.h s390/net: move pnet constants 2019-02-07 18:06:18 -08:00
preempt.h preempt: Move PREEMPT_NEED_RESCHED definition into arch code 2018-12-07 12:35:46 +00:00
processor.h s390/base: remove unused s390_base_mcck_handler 2019-09-03 13:53:56 +02:00
ptrace.h arch: replace _BITUL() in kernel-space headers with BIT() 2019-07-16 19:23:22 -07:00
purgatory.h s390/purgatory: Remove duplicate variable definitions 2018-07-06 08:47:51 +02:00
qdio.h s390/qeth: add TX NAPI support for IQD devices 2019-08-24 16:39:18 -07:00
runtime_instr.h s390/runtime instrumentation: provide uapi header file 2018-02-02 10:47:15 +01:00
schid.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sclp.h s390/ipl: Fix detection of has_secure attribute 2019-07-11 20:40:02 +02:00
scsw.h s390: fix comment for scsw_cmd_is_valid_sctl 2018-02-22 15:31:24 +01:00
seccomp.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sections.h locking/lockdep: check for freed initmem in static_obj() 2019-04-29 10:47:10 +02:00
serial.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
set_memory.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
setup.h s390 updates for the 5.4 merge window 2019-09-17 14:04:43 -07:00
shmparam.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
signal.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sigp.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
smp.h s390: enforce CONFIG_HOTPLUG_CPU 2019-06-07 10:09:42 +02:00
sparsemem.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
spinlock.h s390: enforce CONFIG_SMP 2019-06-07 10:09:37 +02:00
spinlock_types.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2017-11-13 11:47:01 -08:00
stacktrace.h s390/unwind: correct stack switching during unwind 2019-06-07 15:20:44 +02:00
stp.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
string.h s390/kasan: provide uninstrumented __strlen 2019-08-21 12:58:52 +02:00
switch_to.h s390: always save and restore all registers on context switch 2017-12-05 07:51:08 +01:00
syscall.h audit/stable-5.2 PR 20190507 2019-05-07 19:06:04 -07:00
syscall_wrapper.h s390: syscall_wrapper: avoid clang warning 2019-04-11 13:36:51 +02:00
sysinfo.h s390/sysinfo: add and display licensed internal code identifier 2018-02-02 10:47:15 +01:00
termios.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
thread_info.h arch: replace _BITUL() in kernel-space headers with BIT() 2019-07-16 19:23:22 -07:00
timex.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
tlb.h s390/tlb: Convert to generic mmu_gather 2019-04-03 10:32:57 +02:00
tlbflush.h s390: enforce CONFIG_SMP 2019-06-07 10:09:37 +02:00
topology.h s390/topology: fix compile error in file arch/s390/kernel/smp.c 2017-11-20 08:51:01 +01:00
uaccess.h s390/kasan: fix strncpy_from_user kasan checks 2019-04-24 13:28:46 +02:00
unistd.h s390: wire up clone3 system call 2019-07-23 10:45:53 +02:00
unwind.h s390/unwind: cleanup unused READ_ONCE_TASK_STACK 2019-07-02 16:00:27 +02:00
uprobes.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
user.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
uv.h s390/uv: introduce guest side ultravisor code 2019-04-10 17:47:21 +02:00
vdso.h s390/vdso: add missing boot_vdso_data declaration 2017-11-14 22:07:49 +01:00
vga.h s390: add a few more SPDX identifiers 2017-12-05 07:51:09 +01:00
vmlinux.lds.h s390: introduce .boot.preserved.data section 2019-04-10 17:47:09 +02:00
vtime.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vtimer.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vx-insn.h s390: add alignment hints to vector load and store 2019-02-07 11:57:10 +01:00
xor.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00