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Song Liu 559089e0a9 vmalloc: replace VM_NO_HUGE_VMAP with VM_ALLOW_HUGE_VMAP 
Huge page backed vmalloc memory could benefit performance in many cases.
However, some users of vmalloc may not be ready to handle huge pages for
various reasons: hardware constraints, potential pages split, etc.
VM_NO_HUGE_VMAP was introduced to allow vmalloc users to opt-out huge
pages.  However, it is not easy to track down all the users that require
the opt-out, as the allocation are passed different stacks and may cause
issues in different layers.

To address this issue, replace VM_NO_HUGE_VMAP with an opt-in flag,
VM_ALLOW_HUGE_VMAP, so that users that benefit from huge pages could ask
specificially.

Also, remove vmalloc_no_huge() and add opt-in helper vmalloc_huge().

Fixes: fac54e2bfb ("x86/Kconfig: Select HAVE_ARCH_HUGE_VMALLOC with HAVE_ARCH_HUGE_VMAP")
Link: https://lore.kernel.org/netdev/14444103-d51b-0fb3-ee63-c3f182f0b546@molgen.mpg.de/"
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Song Liu <song@kernel.org>
Reviewed-by: Rik van Riel <riel@surriel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-04-19 12:08:57 -07:00
..
ptrace ptrace: Cleanups for v5.18 2022-03-28 17:29:53 -07:00
syscalls arch: syscalls: simplify uapi/kapi directory creation 2022-03-31 12:03:46 +09:00
trace powerpc: Move C prototypes out of asm-prototypes.h 2022-03-08 22:06:25 +11:00
vdso powerpc/vdso: Move cvdso_call macro into gettimeofday.S 2022-02-12 22:47:44 +11:00
.gitignore
align.c powerpc/inst: Define ppc_inst_t 2021-12-09 22:41:21 +11:00
asm-offsets.c powerpc/ftrace: Add support for livepatch to PPC32 2022-02-07 21:03:10 +11:00
audit.c Revert "powerpc/audit: Convert powerpc to AUDIT_ARCH_COMPAT_GENERIC" 2021-10-27 22:30:32 +11:00
btext.c powerpc/kernel: Add __init attribute to eligible functions 2021-12-23 22:33:10 +11:00
cacheinfo.c powerpc/cacheinfo: use default_groups in kobj_type 2022-01-05 10:58:23 +11:00
cacheinfo.h
compat_audit.c Revert "powerpc/audit: Convert powerpc to AUDIT_ARCH_COMPAT_GENERIC" 2021-10-27 22:30:32 +11:00
cpu_setup_6xx.S
cpu_setup_44x.S
cpu_setup_fsl_booke.S
cpu_setup_pa6t.S
cpu_setup_power.c powerpc/64s: Always set PMU control registers to frozen/disabled when not in use 2021-11-24 21:08:57 +11:00
cpu_setup_ppc970.S
cputable.c
crash_dump.c powerpc: Don't use 'struct ppc_inst' to reference instruction location 2021-06-17 00:09:00 +10:00
dawr.c powerpc: rename powerpc_debugfs_root to arch_debugfs_dir 2021-08-13 22:04:26 +10:00
dbell.c powerpc/64s/interrupt: Don't enable MSR[EE] in irq handlers unless perf is in use 2021-12-16 21:31:45 +11:00
dma-iommu.c powerpc/iommu: Report the correct most efficient DMA mask for PCI devices 2021-09-30 17:10:17 +10:00
dma-mask.c
dma-swiotlb.c
dt_cpu_ftrs.c powerpc/kernel: Add __init attribute to eligible functions 2021-12-23 22:33:10 +11:00
early_32.c powerpc: Move C prototypes out of asm-prototypes.h 2022-03-08 22:06:25 +11:00
eeh.c pci-v5.16-changes 2021-11-06 14:36:12 -07:00
eeh_cache.c powerpc/kernel: Add __init attribute to eligible functions 2021-12-23 22:33:10 +11:00
eeh_driver.c powerpc/eeh: Use a goto for recovery failures 2021-11-25 11:25:31 +11:00
eeh_event.c
eeh_pe.c
eeh_sysfs.c
entry_32.S powerpc/config: Add CONFIG_BOOKE_OR_40x 2021-12-09 22:41:19 +11:00
entry_64.S powerpc/64s: Move hash MMU support code under CONFIG_PPC_64S_HASH_MMU 2021-12-09 22:41:13 +11:00
epapr_hcalls.S
epapr_paravirt.c powerpc/inst: Define ppc_inst_t 2021-12-09 22:41:21 +11:00
exceptions-64e.S powerpc: flexible GPR range save/restore macros 2021-11-29 23:15:20 +11:00
exceptions-64s.S KVM: PPC: Book3S PR: Disable SCV when AIL could be disabled 2022-03-08 13:13:58 +11:00
fadump.c powerpc updates for 5.18 2022-03-25 09:39:36 -07:00
firmware.c powerpc: fix unbalanced node refcount in check_kvm_guest() 2021-10-09 00:15:59 +11:00
fpu.S powerpc/64s/interrupt: handle MSR EE and RI in interrupt entry wrapper 2021-12-16 21:31:45 +11:00
fsl_booke_entry_mapping.S powerpc/booke: Avoid link stack corruption in several places 2021-08-25 13:35:47 +10:00
head_8xx.S powerpc/32: Remove _ENTRY() macro 2022-02-07 21:03:10 +11:00
head_32.h powerpc updates for 5.17 2022-01-14 15:17:26 +01:00
head_40x.S powerpc/32: Remove _ENTRY() macro 2022-02-07 21:03:10 +11:00
head_44x.S powerpc/32: Remove _ENTRY() macro 2022-02-07 21:03:10 +11:00
head_64.S powerpc/64/asm: Do not reassign labels 2021-12-23 22:35:12 +11:00
head_book3s_32.S powerpc updates for 5.18 2022-03-25 09:39:36 -07:00
head_booke.h powerpc: flexible GPR range save/restore macros 2021-11-29 23:15:20 +11:00
head_fsl_booke.S powerpc/32: Remove _ENTRY() macro 2022-02-07 21:03:10 +11:00
hw_breakpoint.c powerpc/inst: Define ppc_inst_t 2021-12-09 22:41:21 +11:00
hw_breakpoint_constraints.c powerpc/inst: Define ppc_inst_t 2021-12-09 22:41:21 +11:00
idle.c powerpc/mm: Switch obsolete dssall to .long 2021-12-23 22:35:13 +11:00
idle_6xx.S powerpc/mm: Switch obsolete dssall to .long 2021-12-23 22:35:13 +11:00
idle_book3e.S
idle_book3s.S powerpc/idle: Don't corrupt back chain when going idle 2021-10-20 21:37:58 +11:00
idle_e500.S
ima_arch.c
interrupt.c powerpc: Move C prototypes out of asm-prototypes.h 2022-03-08 22:06:25 +11:00
interrupt_64.S powerpc/64s: Mask SRR0 before checking against the masked NIP 2022-01-18 10:25:18 +11:00
io-workarounds.c powerpc: Fix reverse map real-mode address lookup with huge vmalloc 2021-05-28 22:54:27 +10:00
io.c
iomap.c
iommu.c powerpc updates for 5.15 2021-09-03 11:22:50 -07:00
irq.c powerpc: Move C prototypes out of asm-prototypes.h 2022-03-08 22:06:25 +11:00
isa-bridge.c mm/vmalloc: remove unmap_kernel_range 2021-04-30 11:20:40 -07:00
jump_label.c powerpc: Don't use 'struct ppc_inst' to reference instruction location 2021-06-17 00:09:00 +10:00
kdebugfs.c powerpc: rename powerpc_debugfs_root to arch_debugfs_dir 2021-08-13 22:04:26 +10:00
kgdb.c powerpc/config: Add CONFIG_BOOKE_OR_40x 2021-12-09 22:41:19 +11:00
kprobes-ftrace.c ftrace: disable preemption when recursion locked 2021-10-27 11:21:49 -04:00
kprobes.c x86/ibt,kprobes: Cure sym+0 equals fentry woes 2022-03-15 10:32:38 +01:00
kvm.c gup: Turn fault_in_pages_{readable,writeable} into fault_in_{readable,writeable} 2021-10-18 16:33:03 +02:00
kvm_emul.S
l2cr_6xx.S powerpc/mm: Switch obsolete dssall to .long 2021-12-23 22:35:13 +11:00
legacy_serial.c powerpc/legacy_serial: Fix UBSAN: array-index-out-of-bounds 2021-05-12 11:07:39 +10:00
Makefile powerpc/vdso: Merge vdso64 and vdso32 into a single directory 2022-02-12 22:47:43 +11:00
mce.c powerpc: Move C prototypes out of asm-prototypes.h 2022-03-08 22:06:25 +11:00
mce_power.c powerpc/inst: Define ppc_inst_t 2021-12-09 22:41:21 +11:00
misc.S powerpc: Avoid link stack corruption in misc asm functions 2021-08-25 13:35:47 +10:00
misc_32.S powerpc: Avoid link stack corruption in misc asm functions 2021-08-25 13:35:47 +10:00
misc_64.S powerpc: Avoid link stack corruption in misc asm functions 2021-08-25 13:35:47 +10:00
module.c vmalloc: replace VM_NO_HUGE_VMAP with VM_ALLOW_HUGE_VMAP 2022-04-19 12:08:57 -07:00
module_32.c powerpc/module_32: Fix livepatching for RO modules 2022-02-07 21:03:10 +11:00
module_64.c Merge branch 'topic/func-desc-lkdtm' into next 2022-03-07 23:34:32 +11:00
msi.c
note.S
nvram_64.c powerpc/kernel: Add __init attribute to eligible functions 2021-12-23 22:33:10 +11:00
of_platform.c
optprobes.c powerpc/inst: Define ppc_inst_t as u32 on PPC32 2021-12-09 22:41:21 +11:00
optprobes_head.S powerpc: flexible GPR range save/restore macros 2021-11-29 23:15:20 +11:00
paca.c powerpc/64s: Move hash MMU support code under CONFIG_PPC_64S_HASH_MMU 2021-12-09 22:41:13 +11:00
pci-common.c powerpc/kernel: Add __init attribute to eligible functions 2021-12-23 22:33:10 +11:00
pci-hotplug.c
pci_32.c powerpc/kernel: Add __init attribute to eligible functions 2021-12-23 22:33:10 +11:00
pci_64.c mm/vmalloc: remove unmap_kernel_range 2021-04-30 11:20:40 -07:00
pci_dn.c
pci_of_scan.c
pmc.c
ppc32.h
ppc_save_regs.S
proc_powerpc.c proc: remove PDE_DATA() completely 2022-01-22 08:33:37 +02:00
process.c powerpc/inst: Define ppc_inst_t 2021-12-09 22:41:21 +11:00
prom.c powerpc/64: Move paca allocation later in boot 2022-02-02 20:32:11 +11:00
prom_init.c powerpc/kernel: Add __init attribute to eligible functions 2021-12-23 22:33:10 +11:00
prom_init_check.sh
prom_parse.c
reloc_32.S powerpc: Avoid link stack corruption in misc asm functions 2021-08-25 13:35:47 +10:00
reloc_64.S powerpc/64: Add UADDR64 relocation support 2022-03-09 21:47:53 +11:00
rtas-proc.c
rtas-rtc.c powerpc/rtas-rtc: remove unused constant 2021-06-25 14:47:20 +10:00
rtas.c powerpc: Set crashkernel offset to mid of RMA region 2022-02-07 15:26:12 +11:00
rtas_flash.c
rtas_pci.c
rtasd.c powerpc/kernel: Add __init attribute to eligible functions 2021-12-23 22:33:10 +11:00
secure_boot.c
security.c powerpc: add link stack flush mitigation status in debugfs. 2022-01-31 13:45:23 +11:00
secvar-ops.c
secvar-sysfs.c powerpc/secvar: fix refcount leak in format_show() 2022-03-08 22:07:41 +11:00
setup-common.c powerpc: Fix debug print in smp_setup_cpu_maps 2022-02-03 20:24:59 +11:00
setup.h powerpc/config: Add CONFIG_BOOKE_OR_40x 2021-12-09 22:41:19 +11:00
setup_32.c powerpc/inst: Define ppc_inst_t 2021-12-09 22:41:21 +11:00
setup_64.c Merge branch 'topic/ppc-kvm' into next 2022-03-28 21:11:24 +11:00
signal.c resume_user_mode: Move to resume_user_mode.h 2022-03-10 16:51:50 -06:00
signal.h powerpc/signal32: Fix sigset_t copy 2021-11-16 21:24:16 +11:00
signal_32.c powerpc/signal32: Use struct_group() to zero spe regs 2021-12-02 10:39:00 +11:00
signal_64.c powerpc: Move and rename func_descr_t 2022-02-16 23:25:10 +11:00
smp-tbsync.c
smp.c powerpc: Move C prototypes out of asm-prototypes.h 2022-03-08 22:06:25 +11:00
stacktrace.c kprobes: treewide: Make it harder to refer kretprobe_trampoline directly 2021-09-30 21:24:06 -04:00
static_call.c powerpc/32: Add support for out-of-line static calls 2021-10-22 15:22:05 +11:00
suspend.c
swsusp.c
swsusp_32.S powerpc/mm: Switch obsolete dssall to .long 2021-12-23 22:35:13 +11:00
swsusp_64.c powerpc/machdep: Remove stale functions from ppc_md structure 2021-10-22 15:22:05 +11:00
swsusp_asm64.S powerpc/mm: Switch obsolete dssall to .long 2021-12-23 22:35:13 +11:00
swsusp_booke.S
sys_ppc32.c
syscalls.c powerpc: Move C prototypes out of asm-prototypes.h 2022-03-08 22:06:25 +11:00
sysfs.c drivers/base/node: consolidate node device subsystem initialization in node_dev_init() 2022-03-22 15:57:10 -07:00
systbl.S
systbl_chk.sh
tau_6xx.c powerpc: Move C prototypes out of asm-prototypes.h 2022-03-08 22:06:25 +11:00
time.c powerpc/time: improve decrementer clockevent processing 2022-03-16 16:55:23 +11:00
tm.S powerpc/tm: Fix more userspace r13 corruption 2022-03-16 11:59:24 +11:00
traps.c exit: Add and use make_task_dead. 2021-12-13 12:04:45 -06:00
ucall.S
udbg.c isystem: ship and use stdarg.h 2021-08-19 09:02:55 +09:00
udbg_16550.c powerpc/kernel: Add __init attribute to eligible functions 2021-12-23 22:33:10 +11:00
uprobes.c powerpc/64s: avoid reloading (H)SRR registers if they are still valid 2021-06-25 00:06:55 +10:00
vdso.c
vdso32_wrapper.S powerpc/vdso: Merge vdso64 and vdso32 into a single directory 2022-02-12 22:47:43 +11:00
vdso64_wrapper.S powerpc/vdso: Merge vdso64 and vdso32 into a single directory 2022-02-12 22:47:43 +11:00
vecemu.c powerpc/inst: Define ppc_inst_t 2021-12-09 22:41:21 +11:00
vector.S powerpc/64s/interrupt: handle MSR EE and RI in interrupt entry wrapper 2021-12-16 21:31:45 +11:00
vmlinux.lds.S powerpc/64: Add UADDR64 relocation support 2022-03-09 21:47:53 +11:00
watchdog.c powerpc/watchdog: help remote CPUs to flush NMI printk output 2021-11-29 23:08:43 +11:00