forked from Minki/linux
b5331379bc
947031 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Will Deacon
|
b5331379bc |
KVM: arm64: Only reschedule if MMU_NOTIFIER_RANGE_BLOCKABLE is not set
When an MMU notifier call results in unmapping a range that spans multiple
PGDs, we end up calling into cond_resched_lock() when crossing a PGD boundary,
since this avoids running into RCU stalls during VM teardown. Unfortunately,
if the VM is destroyed as a result of OOM, then blocking is not permitted
and the call to the scheduler triggers the following BUG():
| BUG: sleeping function called from invalid context at arch/arm64/kvm/mmu.c:394
| in_atomic(): 1, irqs_disabled(): 0, non_block: 1, pid: 36, name: oom_reaper
| INFO: lockdep is turned off.
| CPU: 3 PID: 36 Comm: oom_reaper Not tainted 5.8.0 #1
| Hardware name: QEMU QEMU Virtual Machine, BIOS 0.0.0 02/06/2015
| Call trace:
| dump_backtrace+0x0/0x284
| show_stack+0x1c/0x28
| dump_stack+0xf0/0x1a4
| ___might_sleep+0x2bc/0x2cc
| unmap_stage2_range+0x160/0x1ac
| kvm_unmap_hva_range+0x1a0/0x1c8
| kvm_mmu_notifier_invalidate_range_start+0x8c/0xf8
| __mmu_notifier_invalidate_range_start+0x218/0x31c
| mmu_notifier_invalidate_range_start_nonblock+0x78/0xb0
| __oom_reap_task_mm+0x128/0x268
| oom_reap_task+0xac/0x298
| oom_reaper+0x178/0x17c
| kthread+0x1e4/0x1fc
| ret_from_fork+0x10/0x30
Use the new 'flags' argument to kvm_unmap_hva_range() to ensure that we
only reschedule if MMU_NOTIFIER_RANGE_BLOCKABLE is set in the notifier
flags.
Cc: <stable@vger.kernel.org>
Fixes:
|
||
|
Will Deacon
|
fdfe7cbd58 |
KVM: Pass MMU notifier range flags to kvm_unmap_hva_range()
The 'flags' field of 'struct mmu_notifier_range' is used to indicate
whether invalidate_range_{start,end}() are permitted to block. In the
case of kvm_mmu_notifier_invalidate_range_start(), this field is not
forwarded on to the architecture-specific implementation of
kvm_unmap_hva_range() and therefore the backend cannot sensibly decide
whether or not to block.
Add an extra 'flags' parameter to kvm_unmap_hva_range() so that
architectures are aware as to whether or not they are permitted to block.
Cc: <stable@vger.kernel.org>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: James Morse <james.morse@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
Message-Id: <20200811102725.7121-2-will@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
|
||
Jim Mattson
|
cb957adb4e |
kvm: x86: Toggling CR4.PKE does not load PDPTEs in PAE mode
See the SDM, volume 3, section 4.4.1:
If PAE paging would be in use following an execution of MOV to CR0 or
MOV to CR4 (see Section 4.1.1) and the instruction is modifying any of
CR0.CD, CR0.NW, CR0.PG, CR4.PAE, CR4.PGE, CR4.PSE, or CR4.SMEP; then
the PDPTEs are loaded from the address in CR3.
Fixes:
|
||
|
Jim Mattson
|
427890aff8 |
kvm: x86: Toggling CR4.SMAP does not load PDPTEs in PAE mode
See the SDM, volume 3, section 4.4.1:
If PAE paging would be in use following an execution of MOV to CR0 or
MOV to CR4 (see Section 4.1.1) and the instruction is modifying any of
CR0.CD, CR0.NW, CR0.PG, CR4.PAE, CR4.PGE, CR4.PSE, or CR4.SMEP; then
the PDPTEs are loaded from the address in CR3.
Fixes:
|
||
Paolo Bonzini
|
19cf4b7eef |
KVM: x86: fix access code passed to gva_to_gpa
The PK bit of the error code is computed dynamically in permission_fault
and therefore need not be passed to gva_to_gpa: only the access bits
(fetch, user, write) need to be passed down.
Not doing so causes a splat in the pku test:
WARNING: CPU: 25 PID: 5465 at arch/x86/kvm/mmu.h:197 paging64_walk_addr_generic+0x594/0x750 [kvm]
Hardware name: Intel Corporation WilsonCity/WilsonCity, BIOS WLYDCRB1.SYS.0014.D62.2001092233 01/09/2020
RIP: 0010:paging64_walk_addr_generic+0x594/0x750 [kvm]
Code: <0f> 0b e9 db fe ff ff 44 8b 43 04 4c 89 6c 24 30 8b 13 41 39 d0 89
RSP: 0018:ff53778fc623fb60 EFLAGS: 00010202
RAX: 0000000000000001 RBX: ff53778fc623fbf0 RCX: 0000000000000007
RDX: 0000000000000001 RSI: 0000000000000002 RDI: ff4501efba818000
RBP: 0000000000000020 R08: 0000000000000005 R09: 00000000004000e7
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000007
R13: ff4501efba818388 R14: 10000000004000e7 R15: 0000000000000000
FS: 00007f2dcf31a700(0000) GS:ff4501f1c8040000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000001dea475005 CR4: 0000000000763ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
paging64_gva_to_gpa+0x3f/0xb0 [kvm]
kvm_fixup_and_inject_pf_error+0x48/0xa0 [kvm]
handle_exception_nmi+0x4fc/0x5b0 [kvm_intel]
kvm_arch_vcpu_ioctl_run+0x911/0x1c10 [kvm]
kvm_vcpu_ioctl+0x23e/0x5d0 [kvm]
ksys_ioctl+0x92/0xb0
__x64_sys_ioctl+0x16/0x20
do_syscall_64+0x3e/0xb0
entry_SYSCALL_64_after_hwframe+0x44/0xa9
---[ end trace d17eb998aee991da ]---
Reported-by: Sean Christopherson <sean.j.christopherson@intel.com>
Fixes:
|
||
Yang Weijiang
|
98b0bf0273 |
selftests: kvm: Use a shorter encoding to clear RAX
If debug_regs.c is built with newer binutils, the resulting binary is "optimized"
by the assembler:
asm volatile("ss_start: "
"xor %%rax,%%rax\n\t"
"cpuid\n\t"
"movl $0x1a0,%%ecx\n\t"
"rdmsr\n\t"
: : : "rax", "ecx");
is translated to :
000000000040194e <ss_start>:
40194e: 31 c0 xor %eax,%eax <----- rax->eax?
401950: 0f a2 cpuid
401952: b9 a0 01 00 00 mov $0x1a0,%ecx
401957: 0f 32 rdmsr
As you can see rax is replaced with eax in target binary code.
This causes a difference is the length of xor instruction (2 Byte vs 3 Byte),
and makes the hard-coded instruction length check fail:
/* Instruction lengths starting at ss_start */
int ss_size[4] = {
3, /* xor */ <-------- 2 or 3?
2, /* cpuid */
5, /* mov */
2, /* rdmsr */
};
Encode the shorter version directly and, while at it, fix the "clobbers"
of the asm.
Cc: stable@vger.kernel.org
Signed-off-by: Yang Weijiang <weijiang.yang@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
|
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Xingxing Su
|
e792415c5d |
KVM: MIPS/VZ: Fix build error caused by 'kvm_run' cleanup
Commit
|
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Jon Doron
|
99b48ecc8e |
x86/kvm/hyper-v: Synic default SCONTROL MSR needs to be enabled
Based on an analysis of the HyperV firmwares (Gen1 and Gen2) it seems like the SCONTROL is not being set to the ENABLED state as like we have thought. Also from a test done by Vitaly Kuznetsov, running a nested HyperV it was concluded that the first access to the SCONTROL MSR with a read resulted with the value of 0x1, aka HV_SYNIC_CONTROL_ENABLE. It's important to note that this diverges from the value states in the HyperV TLFS of 0. Signed-off-by: Jon Doron <arilou@gmail.com> Message-Id: <20200717125238.1103096-2-arilou@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Jiaxun Yang
|
f40a4b0512 |
MIPS: KVM: Convert a fallthrough comment to fallthrough
There is a fallthrough comment being forgotten,
GCC complains about it:
arch/mips/kvm/emulate.c: In function kvm_mips_emulate_load:
arch/mips/kvm/emulate.c:1936:21: error: this statement may fall through
1936 | vcpu->mmio_needed = 1; /* unsigned */
| ~~~~~~~~~~~~~~~~~~^~~
arch/mips/kvm/emulate.c:1939:2: note: here
1939 | case lw_op:
Just fix it.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Huacai Chen <chenhc@lemote.com>
Message-Id: <20200810011749.3211128-1-jiaxun.yang@flygoat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
|
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Huacai Chen
|
cf99c505cf |
MIPS: VZ: Only include loongson_regs.h for CPU_LOONGSON64
Only Loongson64 platform has and needs loongson_regs.h, including it
unconditionally will cause build errors.
Fixes:
|
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|
Paolo Bonzini
|
3ff0327899 |
PPC KVM update for 5.9
- Improvements and bug-fixes for secure VM support, giving reduced startup time and memory hotplug support. - Locking fixes in nested KVM code - Increase number of guests supported by HV KVM to 4094 - Preliminary POWER10 support -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAABCAAGBQJfH7NMAAoJEJ2a6ncsY3GfkZoH/1be9wpKse2wTke3UcgqGnuX WkOXMqvTG/1goHIuPKm0QP9O3RU3m2EnXqGJjkg71zVYierzMONhJblfU4XDdk2E FbD2tjNEGuQGNXp8mrHFuwAB6zRQTQevsxsIPYU7KDZ8wKavSAKtayJNEfAf2inI YB49Vj8N5djmH3Y+T41XsKx8ut4n1o82MTQsuiHwbtZt1GVO9N7OXW4SZvYbu18v CUp3GIkiFU+VVQv+9a1a1c0w7DendNGL2mNF18tQohwV+NOFv0wsP4ZOONBE8c70 myo9SAuxpOZfeENxk7Cw323kZ2095e/6IDSUeQ91xp/FYmq6YTXmAvc//MKKaow= =Lnvu -----END PGP SIGNATURE----- Merge tag 'kvm-ppc-next-5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into kvm-next-5.6 PPC KVM update for 5.9 - Improvements and bug-fixes for secure VM support, giving reduced startup time and memory hotplug support. - Locking fixes in nested KVM code - Increase number of guests supported by HV KVM to 4094 - Preliminary POWER10 support |
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Paolo Bonzini
|
43bd9ef42b |
x86: Expose SERIALIZE for supported cpuid
The SERIALIZE instruction is supported by Tntel processors, like Sapphire Rapids. SERIALIZE is a faster serializing instruction which does not modify registers, arithmetic flags or memory, will not cause VM exit. It's availability is indicated by CPUID.(EAX=7,ECX=0):ECX[bit 14]. Expose it in KVM supported CPUID. This way, KVM could pass this information to guests and they can make use of these features accordingly. Signed-off-by: Cathy Zhang <cathy.zhang@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Paolo Bonzini
|
0378daef0c |
KVM/arm64 updates for Linux 5.9:
- Split the VHE and nVHE hypervisor code bases, build the EL2 code separately, allowing for the VHE code to now be built with instrumentation - Level-based TLB invalidation support - Restructure of the vcpu register storage to accomodate the NV code - Pointer Authentication available for guests on nVHE hosts - Simplification of the system register table parsing - MMU cleanups and fixes - A number of post-32bit cleanups and other fixes -----BEGIN PGP SIGNATURE----- iQJDBAABCgAtFiEEn9UcU+C1Yxj9lZw9I9DQutE9ekMFAl8q5DEPHG1hekBrZXJu ZWwub3JnAAoJECPQ0LrRPXpDQFAP/jtscnC5OxEOoGNW1gvg/1QI/BuU4zLvqQL1 OEW72fUQlil7tmF/CbLLKnsBpxKmzO02C3wDdg3oaRi884bRtTXdok0nsFuCvrZD u/wrlMnP0zTjjk1uwIFfZJTx+nnUiT0jC6ffvGxB/jnTJk/8atvOUFL7ODFEfixz mS5g1jwwJkRmWKESFg7KGSghKuwXTvo4HVWCfME+t1rQwAa03stXFV8H5tkU6+cG BRIssxo7BkAV2AozwL7hgl/M6wd6QvbOrYJqgb67+sQ8qts0YNne96NN3InMedb1 RENyDssXlA+VI0HoYyEbYnPtFy1Hoj1lOGDZLEZAEH1qcmWrV+hApnoSXSmuofvn QlfOWCyd92CZySu21MALRUVXbrKkA3zT2b9R93A5z7iEBPY+Wk0ryJCO6IxdZzF8 48LNjtzb/Kd0SMU/issJlw+u6fJvLbpnSzXNsYYhiiTMUE9cbu2SEkq0SkonH0a4 d3V8UifZyeffXsOfOAG0DJZOu/fWZp1/I3tfzujtG9rCb+jTQueJ4E1cFYrwSO6b sFNyiI1AzlwcCippG08zSUX61nGfKXBuMXuhIlMRk7GeiF95DmSXuxEgYndZX9I+ E6zJr1iQk/1lrip41svDIIOBHuMbIeD/w1bsOKi7Zoa270MxB4r2Z3IqRMgosoE5 l4YO9pl1 =Ukr4 -----END PGP SIGNATURE----- Merge tag 'kvmarm-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into kvm-next-5.6 KVM/arm64 updates for Linux 5.9: - Split the VHE and nVHE hypervisor code bases, build the EL2 code separately, allowing for the VHE code to now be built with instrumentation - Level-based TLB invalidation support - Restructure of the vcpu register storage to accomodate the NV code - Pointer Authentication available for guests on nVHE hosts - Simplification of the system register table parsing - MMU cleanups and fixes - A number of post-32bit cleanups and other fixes |
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Sean Christopherson
|
05487215e6 |
KVM: x86: Don't attempt to load PDPTRs when 64-bit mode is enabled
Don't attempt to load PDPTRs if EFER.LME=1, i.e. if 64-bit mode is
enabled. A recent change to reload the PDTPRs when CR0.CD or CR0.NW is
toggled botched the EFER.LME handling and sends KVM down the PDTPR path
when is_paging() is true, i.e. when the guest toggles CD/NW in 64-bit
mode.
Split the CR0 checks for 64-bit vs. 32-bit PAE into separate paths. The
64-bit path is specifically checking state when paging is toggled on,
i.e. CR0.PG transititions from 0->1. The PDPTR path now needs to run if
the new CR0 state has paging enabled, irrespective of whether paging was
already enabled. Trying to shave a few cycles to make the PDPTR path an
"else if" case is a mess.
Fixes:
|
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Linus Torvalds
|
06a81c1c7d |
- Fix tegra194-cpufreq module build failure caused __cpu_logical_map
not exported. - Improve fixed_addresses comment regarding the fixmap buffer sizes. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE5RElWfyWxS+3PLO2a9axLQDIXvEFAl8vB4EACgkQa9axLQDI XvE34xAArDxskJ8/CtZXTVtePJBydqmzikF5Su7G4USvGVw8AYmLuKIyPd+HzlHD tC0GGGDn4VAm9zFAr3wU07heaVNENZajvw1s7esDtdVEw030gsrm4YwqfMM/e9HR RB6rg3YktC1KaYwoM7cz9HMjnlUeWzjSnb3jKgxhgcC5TXFWlYJNOPVT2atI8I9i JmxKfUH2h8mig97zChWGeWjkB2vWGeSe4qOj+EIAVazbN++b03HYi04A8vJcjZS3 gRiG6AzCddHWNfidxlygSvevc6rmqybTjGxwTja2WKHuGNaVUDAFlg6LV+sseQPg JpxD52kQv0j/dgtJ6udfhSrKL4y6dYHETr+yLdWfjcPx3bkpIMoM9UfIDsbEigNo HBZe0Im5l7QUO0ZG7fgkgbVbJGvfQau2y3VQdD/9QI7IcW2C2xfcoNhcd+5FX2b3 8LRRnk/XY38yaS/w/XvRyr6d6R9+K77UfEnXSCFwXS4HpR+IJzH1PwWtaPhTQ0+k aH3iikyymDPoOCt6GwewmirBasqqkrDABbUQxoHtYsL0yeFwXAw2TJXfjh1GMq+z 38EU1BITJ3vVO6NeE8qOJ4H9pSYuo6Mp1z3XqAZ7RfgE/9jFDGmbo0oYzApdEvYB 99rV/yDyTluZ2xOrkYiyCAmJAt44tpfTdjXS0/iMqfT5i/YOJWU= =2nNf -----END PGP SIGNATURE----- Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Catalin Marinas: - Fix tegra194-cpufreq module build failure caused by __cpu_logical_map not being exported. - Improve fixed_addresses comment regarding the fixmap buffer sizes. * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: Fix __cpu_logical_map undefined issue arm64/fixmap: make notes of fixed_addresses more precisely |
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Kefeng Wang
|
eaecca9e77 |
arm64: Fix __cpu_logical_map undefined issue
The __cpu_logical_map undefined issue occued when the new tegra194-cpufreq drvier building as a module. ERROR: modpost: "__cpu_logical_map" [drivers/cpufreq/tegra194-cpufreq.ko] undefined! The driver using cpu_logical_map() macro which will expand to __cpu_logical_map, we can't access it in a drvier. Let's turn cpu_logical_map() into a C wrapper and export it to fix the build issue. Also create a function set_cpu_logical_map(cpu, hwid) when assign a value to cpu_logical_map(cpu). Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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Pingfan Liu
|
489577d708 |
arm64/fixmap: make notes of fixed_addresses more precisely
These 'compile-time allocated' memory buffers can occupy more than one page and each enum increment is page-sized. So improve the note about it. Signed-off-by: Pingfan Liu <kernelfans@gmail.com> Cc: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/1596460720-19243-1-git-send-email-kernelfans@gmail.com To: linux-arm-kernel@lists.infradead.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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Linus Torvalds
|
11030fe96b |
Minor cleanups to the IPMI driver for 5.9
Nothing of any major consequence. Duplicate code, some missing \n's in sysfs files, some documentation and comment changes. -corey -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE/Q1c5nzg9ZpmiCaGYfOMkJGb/4EFAl8um4MACgkQYfOMkJGb /4HGRw/7BMvFWb7n90R2ncF/vv0G9OTo7R7L06wzxCgB+yKsQVud6F868v31qOYW 7nTuYucnZZkZAb0aBlmKE1ZOKeF65q7M3fB/VrdZDHyKkgBQHzUNSm+VVZ6S6p1p xYdzisAeKacV/RXlC0IXdFOvZQ7tgPwRDrN3kacu4+xfboQBDIk96xDjPRMqg5Vm DzVx9ReGtD+lgloZfVQlkAFhz2JDJLaW+k77sNpxiuvLJy5DrBMldt7/44hIxaXY GQ/H8Zq+zF+25M3lVNMHFSnZ+PADq182AvehPvnqEL+vnOJJ2eOSkIoruC4VlgPG Du7a63GWZySj1r2IiV2UzigFHE0EkIWv7Yk5g6O1fpENM+BLuwE4WX3xXpXLy5xg L9EOJfRlhP8tNJTXg+HlRFtJEp0DejxFN7R4CDHbirVokesjo/raKcTGxNflFDjE WuZoGwzzlnkbbuZvOVSjv+XAC+AgE6hiMTR6WxOhTgdof6z3QDNK7Eu5qr8tWAj2 LJL0UEACJpwSa48RpkUHxoXKtq66c8tg+H/Bfcbef8OXtFmXrUekuEFLp7iimIre Zd7fEdOyDlkroy/XCEL8LeLMWVmWASZb1s62A/wJawXV7YxpkQ7ye/VXqSw6ukFG +PjT/be4LO2xPiFxWZgnG2wKODF/9Kqq5uj/TH0DTyCrp95D0L4= =TmGm -----END PGP SIGNATURE----- Merge tag 'for-linus-5.9-1' of git://github.com/cminyard/linux-ipmi Pull IPMI updates from Corey Minyard: "Minor cleanups to the IPMI driver for 5.9 Nothing of any major consequence. Duplicate code, some missing \n's in sysfs files, some documentation and comment changes" * tag 'for-linus-5.9-1' of git://github.com/cminyard/linux-ipmi: ipmi/watchdog: add missing newlines when printing parameters by sysfs ipmi: remve duplicate code in __ipmi_bmc_register() ipmi: ssif: Remove finished TODO comment about SMBus alert Doc: driver-api: ipmi: Add description of alerts_broken module param |
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Linus Torvalds
|
449dc8c970 |
power supply and reset changes for the v5.9 series
power-supply core: * add COOL/WARM/HOT state from JEITA JISC8712:2015 specification * convert simple-battery DT binding to YAML * add long-life charging mode battery/charger drivers: * bq25150: new charger driver * bq27xxx: add support for BQ27z561 and BQ28z610 * max17040: support CAPACITY_ALERT_MIN * sbs-battery: add PEC support * wilco-ec: support long-life charging mode * bq25890: fix DT binding * misc. fixes and cleanups reset drivers: * linkstation: new reset driver -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE72YNB0Y/i3JqeVQT2O7X88g7+poFAl8rMawACgkQ2O7X88g7 +prspw/8CkZiTCl+tnaVdWNvzSQjalKjKeYegKlEolwfZjSQIokeLfz8KSqN2R8q t+TTEJLuO+Y7ZRlpR+inD3UbeAI4XUL9PE8ZwrKycpwUbwIsjICZT5XEbDCjkyIo tXBsB4ainkGy4SD2Yn1/tMQB+S4blqiz7ryhii1OWI8+MMLfR25m0cQQDMm1VlAn WgWza/wRTX+7NpCPSoHkMN4lk2hZz4Ai7X+z8W7TtId91gk+1vQBGOllinG9yd5F bik6Q2qBgHP8ICB6p+9YUenozvvFfEK79euMW99YnZM91DCb0v0YSDm56wIpV58r JGDXN2pHeYxjuDM6pXMbQV31u/NbMKSHMolBYdAtPbxPMS7iHefgoPYUOZDamRte ovjW+pXhEyKkFORp61rwwza3EDBBdKsF2C8OVGywAK8kOZ2y0a6wPEre62Dq2r3U A6eYT+UD+EYV9eunX6Nvx45hi/Vl3R35vJGhU+M77N5YcpW1jSJxWVZJ5AlbwDQK +6Di8GUYrZLZ17+z0bkF8RKnJlfHPVcrvbKty/ePtyYW/DgDpwH9/QQWPIF7BbMG f5csOE5A/MWIENeOWClYtKGMjxzTrKZ5BbjPWYzSo+Gw36fM5pCB1rG6/s+kmGM3 HeGyWMr5fe4eoRBTcM/LFqyM8C1wYXGIMd8u65/RsYh592fgfgw= =SWyv -----END PGP SIGNATURE----- Merge tag 'for-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply Pull power supply and reset updates from Sebastian Reichel: "Power-supply core: - add COOL/WARM/HOT state from JEITA JISC8712:2015 specification - convert simple-battery DT binding to YAML - add long-life charging mode Battery/charger drivers: - bq25150: new charger driver - bq27xxx: add support for BQ27z561 and BQ28z610 - max17040: support CAPACITY_ALERT_MIN - sbs-battery: add PEC support - wilco-ec: support long-life charging mode - bq25890: fix DT binding - misc. fixes and cleanups Reset drivers: - linkstation: new reset driver" * tag 'for-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (32 commits) power: supply: wilco_ec: Add long life charging mode power: supply: bq27xxx_battery: Add the BQ28z610 Battery monitor dt-bindings: power: Add BQ28z610 compatible power: supply: bq27xxx_battery: Add the BQ27Z561 Battery monitor dt-bindings: power: Add BQ27Z561 compatible power: supply: test_power: Fix battery_current initial value power: supply: Fix kerneldoc of power_supply_temp2resist_simple() power: supply: cpcap-battery: Fix kerneldoc of cpcap_battery_read_accumulated() dt-bindings: power: Convert battery.txt to battery.yaml power: supply: rt5033_battery: Fix error code in rt5033_battery_probe() power: supply: max17040: Add POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN power: supply: check if calc_soc succeeded in pm860x_init_battery power: supply: bq2xxxx: Replace HTTP links with HTTPS ones power: reset: add driver for LinkStation power off power: supply: sc27xx: prevent adc * 1000 from overflow math64: New DIV_S64_ROUND_CLOSEST helper power: fix duplicated words in bq2415x_charger.h power: Convert to DEFINE_SHOW_ATTRIBUTE power: reset: keystone-reset: Replace HTTP links with HTTPS ones power: supply: bq25150 introduce the bq25150 ... |
||
|
Linus Torvalds
|
b79675e15a |
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc vfs updates from Al Viro:
"No common topic whatsoever in those, sorry"
* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fs: define inode flags using bit numbers
iov_iter: Move unnecessary inclusion of crypto/hash.h
dlmfs: clean up dlmfs_file_{read,write}() a bit
|
||
|
Linus Torvalds
|
d57b2b5bc4 |
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull mount leak fix from Al Viro: "Regression fix for the syscalls-for-init series - fix a leak of a 'struct path'" * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fs: fix a struct path leak in path_umount |
||
|
Linus Torvalds
|
049eb096da |
pci-v5.9-changes
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Merge tag 'pci-v5.9-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Enumeration:
- Fix pci_cfg_wait queue locking problem (Bjorn Helgaas)
- Convert PCIe capability PCIBIOS errors to errno (Bolarinwa Olayemi
Saheed)
- Align PCIe capability and PCI accessor return values (Bolarinwa
Olayemi Saheed)
- Fix pci_create_slot() reference count leak (Qiushi Wu)
- Announce device after early fixups (Tiezhu Yang)
PCI device hotplug:
- Make rpadlpar functions static (Wei Yongjun)
Driver binding:
- Add device even if driver attach failed (Rajat Jain)
Virtualization:
- xen: Remove redundant initialization of irq (Colin Ian King)
IOMMU:
- Add pci_pri_supported() to check device or associated PF (Ashok Raj)
- Release IVRS table in AMD ACS quirk (Hanjun Guo)
- Mark AMD Navi10 GPU rev 0x00 ATS as broken (Kai-Heng Feng)
- Treat "external-facing" devices themselves as internal (Rajat Jain)
MSI:
- Forward MSI-X error code in pci_alloc_irq_vectors_affinity() (Piotr
Stankiewicz)
Error handling:
- Clear PCIe Device Status errors only if OS owns AER (Jonathan
Cameron)
- Log correctable errors as warning, not error (Matt Jolly)
- Use 'pci_channel_state_t' instead of 'enum pci_channel_state' (Luc
Van Oostenryck)
Peer-to-peer DMA:
- Allow P2PDMA on AMD Zen and newer CPUs (Logan Gunthorpe)
ASPM:
- Add missing newline in sysfs 'policy' (Xiongfeng Wang)
Native PCIe controllers:
- Convert to devm_platform_ioremap_resource_byname() (Dejin Zheng)
- Convert to devm_platform_ioremap_resource() (Dejin Zheng)
- Remove duplicate error message from devm_pci_remap_cfg_resource()
callers (Dejin Zheng)
- Fix runtime PM imbalance on error (Dinghao Liu)
- Remove dev_err() when handing an error from platform_get_irq()
(Krzysztof Wilczyński)
- Use pci_host_bridge.windows list directly instead of splicing in a
temporary list for cadence, mvebu, host-common (Rob Herring)
- Use pci_host_probe() instead of open-coding all the pieces for
altera, brcmstb, iproc, mobiveil, rcar, rockchip, tegra, v3,
versatile, xgene, xilinx, xilinx-nwl (Rob Herring)
- Default host bridge parent device to the platform device (Rob
Herring)
- Use pci_is_root_bus() instead of tracking root bus number
separately in aardvark, designware (imx6, keystone,
designware-host), mobiveil, xilinx-nwl, xilinx, rockchip, rcar (Rob
Herring)
- Set host bridge bus number in pci_scan_root_bus_bridge() instead of
each driver for aardvark, designware-host, host-common, mediatek,
rcar, tegra, v3-semi (Rob Herring)
- Move DT resource setup into devm_pci_alloc_host_bridge() (Rob
Herring)
- Set bridge map_irq and swizzle_irq to default functions; drivers
that don't support legacy IRQs (iproc) need to undo this (Rob
Herring)
ARM Versatile PCIe controller driver:
- Drop flag PCI_ENABLE_PROC_DOMAINS (Rob Herring)
Cadence PCIe controller driver:
- Use "dma-ranges" instead of "cdns,no-bar-match-nbits" property
(Kishon Vijay Abraham I)
- Remove "mem" from reg binding (Kishon Vijay Abraham I)
- Fix cdns_pcie_{host|ep}_setup() error path (Kishon Vijay Abraham I)
- Convert all r/w accessors to perform only 32-bit accesses (Kishon
Vijay Abraham I)
- Add support to start link and verify link status (Kishon Vijay
Abraham I)
- Allow pci_host_bridge to have custom pci_ops (Kishon Vijay Abraham I)
- Add new *ops* for CPU addr fixup (Kishon Vijay Abraham I)
- Fix updating Vendor ID and Subsystem Vendor ID register (Kishon
Vijay Abraham I)
- Use bridge resources for outbound window setup (Rob Herring)
- Remove private bus number and range storage (Rob Herring)
Cadence PCIe endpoint driver:
- Add MSI-X support (Alan Douglas)
HiSilicon PCIe controller driver:
- Remove non-ECAM HiSilicon hip05/hip06 driver (Rob Herring)
Intel VMD host bridge driver:
- Use Shadow MEMBAR registers for QEMU/KVM guests (Jon Derrick)
Loongson PCIe controller driver:
- Use DECLARE_PCI_FIXUP_EARLY for bridge_class_quirk() (Tiezhu Yang)
Marvell Aardvark PCIe controller driver:
- Indicate error in 'val' when config read fails (Pali Rohár)
- Don't touch PCIe registers if no card connected (Pali Rohár)
Marvell MVEBU PCIe controller driver:
- Setup BAR0 in order to fix MSI (Shmuel Hazan)
Microsoft Hyper-V host bridge driver:
- Fix a timing issue which causes kdump to fail occasionally (Wei Hu)
- Make some functions static (Wei Yongjun)
NVIDIA Tegra PCIe controller driver:
- Revert tegra124 raw_violation_fixup (Nicolas Chauvet)
- Remove PLL power supplies (Thierry Reding)
Qualcomm PCIe controller driver:
- Change duplicate PCI reset to phy reset (Abhishek Sahu)
- Add missing ipq806x clocks in PCIe driver (Ansuel Smith)
- Add missing reset for ipq806x (Ansuel Smith)
- Add ext reset (Ansuel Smith)
- Use bulk clk API and assert on error (Ansuel Smith)
- Add support for tx term offset for rev 2.1.0 (Ansuel Smith)
- Define some PARF params needed for ipq8064 SoC (Ansuel Smith)
- Add ipq8064 rev2 variant (Ansuel Smith)
- Support PCI speed set for ipq806x (Sham Muthayyan)
Renesas R-Car PCIe controller driver:
- Use devm_pci_alloc_host_bridge() (Rob Herring)
- Use struct pci_host_bridge.windows list directly (Rob Herring)
- Convert rcar-gen2 to use modern host bridge probe functions (Rob
Herring)
TI J721E PCIe driver:
- Add TI J721E PCIe host and endpoint driver (Kishon Vijay Abraham I)
Xilinx Versal CPM PCIe controller driver:
- Add Versal CPM Root Port driver and YAML schema (Bharat Kumar
Gogada)
MicroSemi Switchtec management driver:
- Add missing __iomem and __user tags to fix sparse warnings (Logan
Gunthorpe)
Miscellaneous:
- Replace http:// links with https:// (Alexander A. Klimov)
- Replace lkml.org, spinics, gmane with lore.kernel.org (Bjorn
Helgaas)
- Remove unused pci_lost_interrupt() (Heiner Kallweit)
- Move PCI_VENDOR_ID_REDHAT definition to pci_ids.h (Huacai Chen)
- Fix kerneldoc warnings (Krzysztof Kozlowski)"
* tag 'pci-v5.9-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (113 commits)
PCI: Fix kerneldoc warnings
PCI: xilinx-cpm: Add Versal CPM Root Port driver
PCI: xilinx-cpm: Add YAML schemas for Versal CPM Root Port
PCI: Set bridge map_irq and swizzle_irq to default functions
PCI: Move DT resource setup into devm_pci_alloc_host_bridge()
PCI: rcar-gen2: Convert to use modern host bridge probe functions
PCI: Remove dev_err() when handing an error from platform_get_irq()
MAINTAINERS: Add Kishon Vijay Abraham I for TI J721E SoC PCIe
misc: pci_endpoint_test: Add J721E in pci_device_id table
PCI: j721e: Add TI J721E PCIe driver
PCI: switchtec: Add missing __iomem tag to fix sparse warnings
PCI: switchtec: Add missing __iomem and __user tags to fix sparse warnings
PCI: rpadlpar: Make functions static
PCI/P2PDMA: Allow P2PDMA on AMD Zen and newer CPUs
PCI: Release IVRS table in AMD ACS quirk
PCI: Announce device after early fixups
PCI: Mark AMD Navi10 GPU rev 0x00 ATS as broken
PCI: Remove unused pci_lost_interrupt()
dt-bindings: PCI: Add EP mode dt-bindings for TI's J721E SoC
dt-bindings: PCI: Add host mode dt-bindings for TI's J721E SoC
...
|
||
|
Linus Torvalds
|
32663c78c1 |
Tracing updates for 5.9
- The biggest news in that the tracing ring buffer can now time events that
interrupted other ring buffer events. Before this change, if an interrupt
came in while recording another event, and that interrupt also had an
event, those events would all have the same time stamp as the event it
interrupted. Now, with the new design, those events will have a unique time
stamp and rightfully display the time for those events that were recorded
while interrupting another event.
- Bootconfig how has an "override" operator that lets the users have a
default config, but then add options to override the default.
- A fix was made to properly filter function graph tracing to the ftrace
PIDs. This came in at the end of the -rc cycle, and needs to be backported.
- Several clean ups, performance updates, and minor fixes as well.
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Merge tag 'trace-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
- The biggest news in that the tracing ring buffer can now time events
that interrupted other ring buffer events.
Before this change, if an interrupt came in while recording another
event, and that interrupt also had an event, those events would all
have the same time stamp as the event it interrupted.
Now, with the new design, those events will have a unique time stamp
and rightfully display the time for those events that were recorded
while interrupting another event.
- Bootconfig how has an "override" operator that lets the users have a
default config, but then add options to override the default.
- A fix was made to properly filter function graph tracing to the
ftrace PIDs. This came in at the end of the -rc cycle, and needs to
be backported.
- Several clean ups, performance updates, and minor fixes as well.
* tag 'trace-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (39 commits)
tracing: Add trace_array_init_printk() to initialize instance trace_printk() buffers
kprobes: Fix compiler warning for !CONFIG_KPROBES_ON_FTRACE
tracing: Use trace_sched_process_free() instead of exit() for pid tracing
bootconfig: Fix to find the initargs correctly
Documentation: bootconfig: Add bootconfig override operator
tools/bootconfig: Add testcases for value override operator
lib/bootconfig: Add override operator support
kprobes: Remove show_registers() function prototype
tracing/uprobe: Remove dead code in trace_uprobe_register()
kprobes: Fix NULL pointer dereference at kprobe_ftrace_handler
ftrace: Fix ftrace_trace_task return value
tracepoint: Use __used attribute definitions from compiler_attributes.h
tracepoint: Mark __tracepoint_string's __used
trace : Have tracing buffer info use kvzalloc instead of kzalloc
tracing: Remove outdated comment in stack handling
ftrace: Do not let direct or IPMODIFY ftrace_ops be added to module and set trampolines
ftrace: Setup correct FTRACE_FL_REGS flags for module
tracing/hwlat: Honor the tracing_cpumask
tracing/hwlat: Drop the duplicate assignment in start_kthread()
tracing: Save one trace_event->type by using __TRACE_LAST_TYPE
...
|
||
Michael Ellerman
|
7b9de97711 |
powerpc/ptrace: Fix build error in pkey_get()
The merge resolution in commit |
||
Christoph Hellwig
|
25ccd24ffd |
fs: fix a struct path leak in path_umount
Make sure we also put the dentry and vfsmnt in the illegal flags
and !may_umount cases.
Fixes:
|
||
Steven Rostedt (VMware)
|
38ce2a9e33 |
tracing: Add trace_array_init_printk() to initialize instance trace_printk() buffers
As trace_array_printk() used with not global instances will not add noise to the main buffer, they are OK to have in the kernel (unlike trace_printk()). This require the subsystem to create their own tracing instance, and the trace_array_printk() only writes into those instances. Add trace_array_init_printk() to initialize the trace_printk() buffers without printing out the WARNING message. Reported-by: Sean Paul <sean@poorly.run> Reviewed-by: Sean Paul <sean@poorly.run> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
||
|
Linus Torvalds
|
30185b69a2 |
It looks like a smaller batch of clk updates this time around. In the core
framework we just have some minor tweaks and a debugfs feature, so not much to
see there. The driver updates are fairly well split between AT91 and Qualcomm
clk support. Adding those two drivers together equals about 50% of the
diffstat. Otherwise, the big amount of work this time was on supporting
Broadcom's Raspberry Pi firmware clks. See below for some more highlights.
Core:
- Document clk_hw_round_rate() so it gets some more use
- Remove unused __clk_get_flags()
- Add a prepare/enable debugfs feature similar to rate setting
New Drivers:
- Add support for SAMA7G5 SoC clks
- Enable CPU clks on Qualcomm IPQ6018 SoCs
- Enable CPU clks on Qualcomm MSM8996 SoCs
- GPU clk support for Qualcomm SM8150 and SM8250 SoCs
- Audio clks on Qualcomm SC7180 SoCs
- Microchip Sparx5 DPLL clk
- Add support for the new Renesas RZ/G2H (R8A774E1) SoC
Updates:
- Make defines for bcm63xx-gate clks to use in DT
- Support BCM2711 SoC firmware clks
- Add HDMI clks for BCM2711 SoCs
- Add RTC related clks on Ingenic SoCs
- Support USB PHY clks on Ingenic SoCs
- Support gate clks on BCM6318 SoCs
- RMU and DMAC/GPIO clock support for Actions Semi S500 SoCs
- Use poll_timeout functions in Rockchip clk driver
- Support Rockchip rk3288w SoC variant
- Mark mac_lbtest critical on Rockchip rk3188
- Add CAAM clock support for i.MX vf610 driver
- Add MU root clock support for i.MX imx8mp driver
- Amlogic g12: add neural network accelerator clock sources
- Amlogic meson8: remove critical flag for main PLL divider
- Amlogic meson8: add video decoder clock gates
- Convert one more Renesas DT binding to json-schema
- Enhance critical clock handling on Renesas platforms to only consider
clocks that were enabled at boot time
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"It looks like a smaller batch of clk updates this time around.
In the core framework we just have some minor tweaks and a debugfs
feature, so not much to see there. The driver updates are fairly well
split between AT91 and Qualcomm clk support. Adding those two drivers
together equals about 50% of the diffstat.
Otherwise, the big amount of work this time was on supporting
Broadcom's Raspberry Pi firmware clks.
Highlights:
Core:
- Document clk_hw_round_rate() so it gets some more use
- Remove unused __clk_get_flags()
- Add a prepare/enable debugfs feature similar to rate setting
New Drivers:
- Add support for SAMA7G5 SoC clks
- Enable CPU clks on Qualcomm IPQ6018 SoCs
- Enable CPU clks on Qualcomm MSM8996 SoCs
- GPU clk support for Qualcomm SM8150 and SM8250 SoCs
- Audio clks on Qualcomm SC7180 SoCs
- Microchip Sparx5 DPLL clk
- Add support for the new Renesas RZ/G2H (R8A774E1) SoC
Updates:
- Make defines for bcm63xx-gate clks to use in DT
- Support BCM2711 SoC firmware clks
- Add HDMI clks for BCM2711 SoCs
- Add RTC related clks on Ingenic SoCs
- Support USB PHY clks on Ingenic SoCs
- Support gate clks on BCM6318 SoCs
- RMU and DMAC/GPIO clock support for Actions Semi S500 SoCs
- Use poll_timeout functions in Rockchip clk driver
- Support Rockchip rk3288w SoC variant
- Mark mac_lbtest critical on Rockchip rk3188
- Add CAAM clock support for i.MX vf610 driver
- Add MU root clock support for i.MX imx8mp driver
- Amlogic g12: add neural network accelerator clock sources
- Amlogic meson8: remove critical flag for main PLL divider
- Amlogic meson8: add video decoder clock gates
- Convert one more Renesas DT binding to json-schema
- Enhance critical clock handling on Renesas platforms to only
consider clocks that were enabled at boot time"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (79 commits)
clk: qcom: gcc: Make disp gpll0 branch aon for sc7180/sdm845
ipq806x: gcc: add support for child probe
clk: qcom: msm8996: Make symbol 'cpu_msm8996_clks' static
clk: qcom: ipq8074: Add correct index for PCIe clocks
clk: <linux/clk-provider.h>: drop a duplicated word
clk: renesas: cpg-mssr: Add r8a774e1 support
dt-bindings: clock: renesas,cpg-mssr: Document r8a774e1
clk: Drop duplicate selection in Kconfig
clk: qcom: smd: Add support for MSM8992/4 rpm clocks
clk: qcom: ipq8074: Add missing clocks for pcie
dt-bindings: clock: qcom: ipq8074: Add missing bindings for PCIe
Replace HTTP links with HTTPS ones: Common CLK framework
clk: qcom: Add CPU clock driver for msm8996
dt-bindings: clk: qcom: Add bindings for CPU clock for msm8996
soc: qcom: Separate kryo l2 accessors from PMU driver
clk: meson: meson8b: add the vclk2_en gate clock
clk: meson: meson8b: add the vclk_en gate clock
clk: qcom: Fix return value check in apss_ipq6018_probe()
clk: bcm: dvp: Add missing module informations
clk: meson: meson8b: Drop CLK_IS_CRITICAL from fclk_div2
...
|
||
|
Linus Torvalds
|
0f43283be7 |
Merge branch 'work.fdpic' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull fdpick coredump update from Al Viro: "Switches fdpic coredumps away from original aout dumping primitives to the same kind of regset use as regular elf coredumps do" * 'work.fdpic' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: [elf-fdpic] switch coredump to regsets [elf-fdpic] use elf_dump_thread_status() for the dumper thread as well [elf-fdpic] move allocation of elf_thread_status into elf_dump_thread_status() [elf-fdpic] coredump: don't bother with cyclic list for per-thread objects kill elf_fpxregs_t take fdpic-related parts of elf_prstatus out unexport linux/elfcore.h |
||
|
Linus Torvalds
|
6ba0d2e4fc |
Fix sysfs module section output overflow
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||
|
Linus Torvalds
|
1fa2c0a0c8 |
Fix SCM_RIGHTS compat mode
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||
|
Linus Torvalds
|
f6235eb189 |
More power management updates for 5.9-rc1
- Add adaptive voltage scaling (AVS) support to the brcmstb cpufreq
driver and clean it up (Florian Fainelli, Markus Mayer).
- Add a new Tegra cpufreq driver and clean up the existing one (Jon
Hunter, Sumit Gupta).
- Add bandwidth level support to the Qcom cpufreq driver along with
OPP changes (Sibi Sankar).
- Clean up the sti, cpufreq-dt, ap806, CPPC cpufreq drivers (Viresh
Kumar, Lee Jones, Ivan Kokshaysky, Sven Auhagen, Xin Hao).
- Make schedutil the default governor for ARM (Valentin Schneider).
- Fix dependency issues for the imx cpufreq driver (Walter Lozano).
- Clean up cached_resolved_idx handlihng in the cpufreq core (Viresh
Kumar).
- Fix the intel_pstate driver to use the correct maximum frequency
value when MSR_TURBO_RATIO_LIMIT is 0 (Srinivas Pandruvada).
- Provide kenrneldoc comments for multiple runtime PM helpers and
improve the pm_runtime_get_if_active() kerneldoc (Rafael Wysocki).
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Merge tag 'pm-5.9-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"These are mostly ARM cpufreq driver updates plus a cpufreq core
cleanup, an ARM-wide change to make schedutil the default scaling
governor, an intel_pstate driver fix and some runtime PM changes
regarding kerneldoc comments.
Specifics:
- Add adaptive voltage scaling (AVS) support to the brcmstb cpufreq
driver and clean it up (Florian Fainelli, Markus Mayer).
- Add a new Tegra cpufreq driver and clean up the existing one (Jon
Hunter, Sumit Gupta).
- Add bandwidth level support to the Qcom cpufreq driver along with
OPP changes (Sibi Sankar).
- Clean up the sti, cpufreq-dt, ap806, CPPC cpufreq drivers (Viresh
Kumar, Lee Jones, Ivan Kokshaysky, Sven Auhagen, Xin Hao).
- Make schedutil the default governor for ARM (Valentin Schneider).
- Fix dependency issues for the imx cpufreq driver (Walter Lozano).
- Clean up cached_resolved_idx handlihng in the cpufreq core (Viresh
Kumar).
- Fix the intel_pstate driver to use the correct maximum frequency
value when MSR_TURBO_RATIO_LIMIT is 0 (Srinivas Pandruvada).
- Provide kenrneldoc comments for multiple runtime PM helpers and
improve the pm_runtime_get_if_active() kerneldoc (Rafael Wysocki)"
* tag 'pm-5.9-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (22 commits)
cpufreq: intel_pstate: Fix cpuinfo_max_freq when MSR_TURBO_RATIO_LIMIT is 0
PM: runtime: Improve kerneldoc of pm_runtime_get_if_active()
PM: runtime: Add kerneldoc comments to multiple helpers
cpufreq: make schedutil the default for arm and arm64
cpufreq: cached_resolved_idx can not be negative
cpufreq: Add Tegra194 cpufreq driver
dt-bindings: arm: Add NVIDIA Tegra194 CPU Complex binding
cpufreq: imx: Select NVMEM_IMX_OCOTP
cpufreq: sti-cpufreq: Fix some formatting and misspelling issues
cpufreq: tegra186: Simplify probe return path
cpufreq: CPPC: Reuse caps variable in few routines
cpufreq: ap806: fix cpufreq driver needs ap cpu clk
cpufreq: cppc: Reorder code and remove apply_hisi_workaround variable
cpufreq: dt: fix oops on armada37xx
cpufreq: brcmstb-avs-cpufreq: send S2_ENTER / S2_EXIT commands to AVS
cpufreq: brcmstb-avs-cpufreq: Support polling AVS firmware
cpufreq: brcmstb-avs-cpufreq: more flexible interface for __issue_avs_command()
cpufreq: qcom: Disable fast switch when scaling DDR/L3
cpufreq: qcom: Update the bandwidth levels on frequency change
OPP: Add and export helper to set bandwidth
...
|
||
|
Linus Torvalds
|
2f12d44085 |
- DM multipath locking fixes around m->flags tests and improvements to
bio-based code so that it follows patterns established by request-based code. - Request-based DM core improvement to eliminate unnecessary call to blk_mq_queue_stopped(). - Add "panic_on_corruption" error handling mode to DM verity target. - DM bufio fix to to perform buffer cleanup from a workqueue rather than wait for IO in reclaim context from shrinker. - DM crypt improvement to optionally avoid async processing via workqueues for reads and/or writes -- via "no_read_workqueue" and "no_write_workqueue" features. This more direct IO processing improves latency and throughput with faster storage. Avoiding workqueue IO submission for writes (DM_CRYPT_NO_WRITE_WORKQUEUE) is a requirement for adding zoned block device support to DM crypt. - Add zoned block device support to DM crypt. Makes use of DM_CRYPT_NO_WRITE_WORKQUEUE and a new optional feature (DM_CRYPT_WRITE_INLINE) that allows write completion to wait for encryption to complete. This allows write ordering to be preserved, which is needed for zoned block devices. - Fix DM ebs target's check for REQ_OP_FLUSH. - Fix DM core's report zones support to not report more zones than were requested. - A few small compiler warning fixes. - DM dust improvements to return output directly to the user rather than require they scrape the system log for output. -----BEGIN PGP SIGNATURE----- iQFHBAABCAAxFiEEJfWUX4UqZ4x1O2wixSPxCi2dA1oFAl8tdOQTHHNuaXR6ZXJA cmVkaGF0LmNvbQAKCRDFI/EKLZ0DWvDlB/sF8svagDqeqs27xTxCiUPykD29cMmS OGPr0Mp/BntZOBpSaTPM9s5XucP3WJhPsxet5qeoyM3OViSFx+O55PqPjn8C65y0 eGMa4zknd9eO1933+ijmyQu6VNr4sf/6nusX4xSGqv00UR22dJ+3pHtfN9ANDXYX AAYA0Ve6UuOwAbGUCnRGI/2780aYY0B8Ok+cF21CskqryF+RpmbZ6BsR07+Hk4cy LX5EaHUqezW12cibLq2f0l7TLLJ86OscvqyU9lGVIxiV57e2i5c2S1HvhKZu+Wn3 6CUmlOhGI0viCKgM1ArekZ+zOw9ROIaAKKPzC5mspqx9yuuCqdY8k8xV =X3tt -----END PGP SIGNATURE----- Merge tag 'for-5.9/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper updates from Mike Snitzer: - DM multipath locking fixes around m->flags tests and improvements to bio-based code so that it follows patterns established by request-based code. - Request-based DM core improvement to eliminate unnecessary call to blk_mq_queue_stopped(). - Add "panic_on_corruption" error handling mode to DM verity target. - DM bufio fix to to perform buffer cleanup from a workqueue rather than wait for IO in reclaim context from shrinker. - DM crypt improvement to optionally avoid async processing via workqueues for reads and/or writes -- via "no_read_workqueue" and "no_write_workqueue" features. This more direct IO processing improves latency and throughput with faster storage. Avoiding workqueue IO submission for writes (DM_CRYPT_NO_WRITE_WORKQUEUE) is a requirement for adding zoned block device support to DM crypt. - Add zoned block device support to DM crypt. Makes use of DM_CRYPT_NO_WRITE_WORKQUEUE and a new optional feature (DM_CRYPT_WRITE_INLINE) that allows write completion to wait for encryption to complete. This allows write ordering to be preserved, which is needed for zoned block devices. - Fix DM ebs target's check for REQ_OP_FLUSH. - Fix DM core's report zones support to not report more zones than were requested. - A few small compiler warning fixes. - DM dust improvements to return output directly to the user rather than require they scrape the system log for output. * tag 'for-5.9/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm: don't call report zones for more than the user requested dm ebs: Fix incorrect checking for REQ_OP_FLUSH dm init: Set file local variable static dm ioctl: Fix compilation warning dm raid: Remove empty if statement dm verity: Fix compilation warning dm crypt: Enable zoned block device support dm crypt: add flags to optionally bypass kcryptd workqueues dm bufio: do buffer cleanup from a workqueue dm rq: don't call blk_mq_queue_stopped() in dm_stop_queue() dm dust: add interface to list all badblocks dm dust: report some message results directly back to user dm verity: add "panic_on_corruption" error handling mode dm mpath: use double checked locking in fast path dm mpath: rename current_pgpath to pgpath in multipath_prepare_ioctl dm mpath: rework __map_bio() dm mpath: factor out multipath_queue_bio dm mpath: push locking down to must_push_back_rq() dm mpath: take m->lock spinlock when testing QUEUE_IF_NO_PATH dm mpath: changes from initial m->flags locking audit |
||
|
Linus Torvalds
|
fa73e21231 |
media updates for v5.9-rc1
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||
|
Linus Torvalds
|
75dee3b6de |
- mediatek :
add support for mt6779 gce
shutdown cleanup and address shift support
- qcom :
add msm8994 apcs and sdm660 hmss compatibility
- imx :
mark PM funcs __maybe
- pcc :
put acpi table before bailout
- misc:
replace http with https links
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Merge tag 'mailbox-v5.9' of git://git.linaro.org/landing-teams/working/fujitsu/integration
Pull mailbox updates from Jassi Brar:
"mediatek:
- add support for mt6779 gce
- shutdown cleanup and address shift support
qcom:
- add msm8994 apcs and sdm660 hmss compatibility
imx:
- mark PM funcs __maybe
pcc:
- put acpi table before bailout
misc:
- replace http with https links"
* tag 'mailbox-v5.9' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
mailbox: mediatek: cmdq: clear task in channel before shutdown
mailbox: cmdq: support mt6779 gce platform definition
mailbox: cmdq: variablize address shift in platform
dt-binding: gce: add gce header file for mt6779
mailbox: qcom: Add msm8994 apcs compatible
mailbox: qcom: Add sdm660 hmss compatible
mailbox: imx: Mark PM functions as __maybe_unused
mailbox: pcc: Put the PCCT table for error path
mailbox: Replace HTTP links with HTTPS ones
|
||
Kees Cook
|
16b89f6953 |
net/scm: Fix typo in SCM_RIGHTS compat refactoring
When refactoring the SCM_RIGHTS code, I accidentally mis-merged my
native/compat diffs, which entirely broke using SCM_RIGHTS in compat
mode. Use the correct helper.
Reported-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Link: https://lists.ozlabs.org/pipermail/linuxppc-dev/2020-August/216156.html
Reported-by: "Alex Xu (Hello71)" <alex_y_xu@yahoo.ca>
Link: https://lore.kernel.org/lkml/1596812929.lz7fuo8r2w.none@localhost/
Suggested-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Fixes:
|
||
|
Linus Torvalds
|
ce615f5c1f |
dmaengine updates for v5.9-rc1
Core: - Support out of order dma completion - Support for repeating transaction New controllers: - Support for Actions S700 DMA engine - Renesas R8A774E1, r8a7742 controller binding - New driver for Xilinx DPDMA controller Others: - Support of out of order dma completion in idxd driver - W=1 warning cleanup of subsystem - Updates to ti-k3-dma, dw, idxd drivers -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE+vs47OPLdNbVcHzyfBQHDyUjg0cFAl8s6voACgkQfBQHDyUj g0f7Aw/+NjqyWAMZ4WpP6p2AN+5Evs7MY0fhhJMkU7ShbQlBM1GKrrNpMhaOaMw2 KB7xWvsfMnpKhxcq5LL2ymMnzJgJHVi0Zp9aRwNQXmJfHyCTDoqv54ljd5ADaL/O XLBLBWc6h5WbAsWmpiovb/EQ58RAU/bvlPD7gntK9Y8n5ha32c+jFnOg+Fd3uINl x9uSHKUOWFVRvIJgOrFcFwl2eT0erFcme7WyCWuNfSFDZlJqOdfVf1TfTVcfyAYY 8r6VWPOyiAc97SPN1hVYMUqqTtRAEDlsPRfeyvUm2pnRJnbyJdHbvbA0l/OMvzH5 3q5SBXz6NgoZsO6GPiSEV679K0nsuZOCqfevNb6+UQUrO7f5JyEbwGTrWju6F3fg UVTENto8XW7KCE+oTkJBgZ6utbDtK5dpoKghX59lN3nKogqzGi3JUlgTtlSIF+AY CnmESWM37f1jw1Ew58gmSYRFfKQV2fLwcAePnaV4HaNV70uFoYnhPvVenSvgYeky 24D8O5fzzhRHsSqUPTLTZ/u4cGJtOiBzQWdWcUXig/mfHKpu9i4nejHmuA2x64l0 oFc3nKwd7XrGVg2l4XMx1T0x69+1dlc0eEkZ7lRGzZgDCMKeHEsLOBGaid+bMO09 4IMzxoQxINui6l8csX5ctbRdXfUFZKZaZU36RxQeysidLE6QDGk= =OfZv -----END PGP SIGNATURE----- Merge tag 'dmaengine-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine Pull dmaengine updates from Vinod Koul: "Core: - Support out of order dma completion - Support for repeating transaction New controllers: - Support for Actions S700 DMA engine - Renesas R8A774E1, r8a7742 controller binding - New driver for Xilinx DPDMA controller Other: - Support of out of order dma completion in idxd driver - W=1 warning cleanup of subsystem - Updates to ti-k3-dma, dw, idxd drivers" * tag 'dmaengine-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (68 commits) dmaengine: dw: Don't include unneeded header to platform data header dmaengine: Actions: Add support for S700 DMA engine dmaengine: Actions: get rid of bit fields from dma descriptor dt-bindings: dmaengine: convert Actions Semi Owl SoCs bindings to yaml dmaengine: idxd: add missing invalid flags field to completion dmaengine: dw: Initialize max_sg_burst capability dmaengine: dw: Introduce max burst length hw config dmaengine: dw: Initialize min and max burst DMA device capability dmaengine: dw: Set DMA device max segment size parameter dmaengine: dw: Take HC_LLP flag into account for noLLP auto-config dmaengine: Introduce DMA-device device_caps callback dmaengine: Introduce max SG burst capability dmaengine: Introduce min burst length capability dt-bindings: dma: dw: Add max burst transaction length property dt-bindings: dma: dw: Convert DW DMAC to DT binding dmaengine: ti: k3-udma: Query throughput level information from hardware dmaengine: ti: k3-udma: Use defines for capabilities register parsing dmaengine: xilinx: dpdma: Fix kerneldoc warning dmaengine: xilinx: dpdma: add missing kernel doc dmaengine: xilinx: dpdma: remove comparison of unsigned expression ... |
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Linus Torvalds
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81e11336d9 |
Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton:
- a few MM hotfixes
- kthread, tools, scripts, ntfs and ocfs2
- some of MM
Subsystems affected by this patch series: kthread, tools, scripts, ntfs,
ocfs2 and mm (hofixes, pagealloc, slab-generic, slab, slub, kcsan,
debug, pagecache, gup, swap, shmem, memcg, pagemap, mremap, mincore,
sparsemem, vmalloc, kasan, pagealloc, hugetlb and vmscan).
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (162 commits)
mm: vmscan: consistent update to pgrefill
mm/vmscan.c: fix typo
khugepaged: khugepaged_test_exit() check mmget_still_valid()
khugepaged: retract_page_tables() remember to test exit
khugepaged: collapse_pte_mapped_thp() protect the pmd lock
khugepaged: collapse_pte_mapped_thp() flush the right range
mm/hugetlb: fix calculation of adjust_range_if_pmd_sharing_possible
mm: thp: replace HTTP links with HTTPS ones
mm/page_alloc: fix memalloc_nocma_{save/restore} APIs
mm/page_alloc.c: skip setting nodemask when we are in interrupt
mm/page_alloc: fallbacks at most has 3 elements
mm/page_alloc: silence a KASAN false positive
mm/page_alloc.c: remove unnecessary end_bitidx for [set|get]_pfnblock_flags_mask()
mm/page_alloc.c: simplify pageblock bitmap access
mm/page_alloc.c: extract the common part in pfn_to_bitidx()
mm/page_alloc.c: replace the definition of NR_MIGRATETYPE_BITS with PB_migratetype_bits
mm/shuffle: remove dynamic reconfiguration
mm/memory_hotplug: document why shuffle_zone() is relevant
mm/page_alloc: remove nr_free_pagecache_pages()
mm: remove vm_total_pages
...
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Shakeel Butt
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912c05720f |
mm: vmscan: consistent update to pgrefill
The vmstat pgrefill is useful together with pgscan and pgsteal stats to measure the reclaim efficiency. However vmstat's pgrefill is not updated consistently at system level. It gets updated for both global and memcg reclaim however pgscan and pgsteal are updated for only global reclaim. So, update pgrefill only for global reclaim. If someone is interested in the stats representing both system level as well as memcg level reclaim, then consult the root memcg's memory.stat instead of /proc/vmstat. Signed-off-by: Shakeel Butt <shakeelb@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Yafang Shao <laoar.shao@gmail.com> Acked-by: Roman Gushchin <guro@fb.com> Acked-by: Chris Down <chris@chrisdown.name> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Link: http://lkml.kernel.org/r/20200711011459.1159929-1-shakeelb@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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dylan-meiners
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238c30468f |
mm/vmscan.c: fix typo
Change "optizimation" to "optimization". Signed-off-by: dylan-meiners <spacct.spacct@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: David Hildenbrand <david@redhat.com> Link: http://lkml.kernel.org/r/20200609185144.10049-1-spacct.spacct@gmail.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Hugh Dickins
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bbe98f9cad |
khugepaged: khugepaged_test_exit() check mmget_still_valid()
Move collapse_huge_page()'s mmget_still_valid() check into
khugepaged_test_exit() itself. collapse_huge_page() is used for anon THP
only, and earned its mmget_still_valid() check because it inserts a huge
pmd entry in place of the page table's pmd entry; whereas
collapse_file()'s retract_page_tables() or collapse_pte_mapped_thp()
merely clears the page table's pmd entry. But core dumping without mmap
lock must have been as open to mistaking a racily cleared pmd entry for a
page table at physical page 0, as exit_mmap() was. And we certainly have
no interest in mapping as a THP once dumping core.
Fixes:
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Hugh Dickins
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18e77600f7 |
khugepaged: retract_page_tables() remember to test exit
Only once have I seen this scenario (and forgot even to notice what forced
the eventual crash): a sequence of "BUG: Bad page map" alerts from
vm_normal_page(), from zap_pte_range() servicing exit_mmap();
pmd:00000000, pte values corresponding to data in physical page 0.
The pte mappings being zapped in this case were supposed to be from a huge
page of ext4 text (but could as well have been shmem): my belief is that
it was racing with collapse_file()'s retract_page_tables(), found *pmd
pointing to a page table, locked it, but *pmd had become 0 by the time
start_pte was decided.
In most cases, that possibility is excluded by holding mmap lock; but
exit_mmap() proceeds without mmap lock. Most of what's run by khugepaged
checks khugepaged_test_exit() after acquiring mmap lock:
khugepaged_collapse_pte_mapped_thps() and hugepage_vma_revalidate() do so,
for example. But retract_page_tables() did not: fix that.
The fix is for retract_page_tables() to check khugepaged_test_exit(),
after acquiring mmap lock, before doing anything to the page table.
Getting the mmap lock serializes with __mmput(), which briefly takes and
drops it in __khugepaged_exit(); then the khugepaged_test_exit() check on
mm_users makes sure we don't touch the page table once exit_mmap() might
reach it, since exit_mmap() will be proceeding without mmap lock, not
expecting anyone to be racing with it.
Fixes:
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Hugh Dickins
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119a5fc161 |
khugepaged: collapse_pte_mapped_thp() protect the pmd lock
When retract_page_tables() removes a page table to make way for a huge
pmd, it holds huge page lock, i_mmap_lock_write, mmap_write_trylock and
pmd lock; but when collapse_pte_mapped_thp() does the same (to handle the
case when the original mmap_write_trylock had failed), only
mmap_write_trylock and pmd lock are held.
That's not enough. One machine has twice crashed under load, with "BUG:
spinlock bad magic" and GPF on 6b6b6b6b6b6b6b6b. Examining the second
crash, page_vma_mapped_walk_done()'s spin_unlock of pvmw->ptl (serving
page_referenced() on a file THP, that had found a page table at *pmd)
discovers that the page table page and its lock have already been freed by
the time it comes to unlock.
Follow the example of retract_page_tables(), but we only need one of huge
page lock or i_mmap_lock_write to secure against this: because it's the
narrower lock, and because it simplifies collapse_pte_mapped_thp() to know
the hpage earlier, choose to rely on huge page lock here.
Fixes:
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Hugh Dickins
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723a80dafe |
khugepaged: collapse_pte_mapped_thp() flush the right range
pmdp_collapse_flush() should be given the start address at which the huge
page is mapped, haddr: it was given addr, which at that point has been
used as a local variable, incremented to the end address of the extent.
Found by source inspection while chasing a hugepage locking bug, which I
then could not explain by this. At first I thought this was very bad;
then saw that all of the page translations that were not flushed would
actually still point to the right pages afterwards, so harmless; then
realized that I know nothing of how different architectures and models
cache intermediate paging structures, so maybe it matters after all -
particularly since the page table concerned is immediately freed.
Much easier to fix than to think about.
Fixes:
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Peter Xu
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75802ca663 |
mm/hugetlb: fix calculation of adjust_range_if_pmd_sharing_possible
This is found by code observation only.
Firstly, the worst case scenario should assume the whole range was covered
by pmd sharing. The old algorithm might not work as expected for ranges
like (1g-2m, 1g+2m), where the adjusted range should be (0, 1g+2m) but the
expected range should be (0, 2g).
Since at it, remove the loop since it should not be required. With that,
the new code should be faster too when the invalidating range is huge.
Mike said:
: With range (1g-2m, 1g+2m) within a vma (0, 2g) the existing code will only
: adjust to (0, 1g+2m) which is incorrect.
:
: We should cc stable. The original reason for adjusting the range was to
: prevent data corruption (getting wrong page). Since the range is not
: always adjusted correctly, the potential for corruption still exists.
:
: However, I am fairly confident that adjust_range_if_pmd_sharing_possible
: is only gong to be called in two cases:
:
: 1) for a single page
: 2) for range == entire vma
:
: In those cases, the current code should produce the correct results.
:
: To be safe, let's just cc stable.
Fixes:
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Alexander A. Klimov
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42742d9bde |
mm: thp: replace HTTP links with HTTPS ones
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.
Deterministic algorithm:
For each file:
If not .svg:
For each line:
If doesn't contain `xmlns`:
For each link, `http://[^# ]*(?:\w|/)`:
If neither `gnu\.org/license`, nor `mozilla\.org/MPL`:
If both the HTTP and HTTPS versions
return 200 OK and serve the same content:
Replace HTTP with HTTPS.
[akpm@linux-foundation.org: fix amd.com URL, per Vlastimil]
Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Link: http://lkml.kernel.org/r/20200713164345.36088-1-grandmaster@al2klimov.de
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Joonsoo Kim
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8510e69c8e |
mm/page_alloc: fix memalloc_nocma_{save/restore} APIs
Currently, memalloc_nocma_{save/restore} API that prevents CMA area
in page allocation is implemented by using current_gfp_context(). However,
there are two problems of this implementation.
First, this doesn't work for allocation fastpath. In the fastpath,
original gfp_mask is used since current_gfp_context() is introduced in
order to control reclaim and it is on slowpath. So, CMA area can be
allocated through the allocation fastpath even if
memalloc_nocma_{save/restore} APIs are used. Currently, there is just
one user for these APIs and it has a fallback method to prevent actual
problem.
Second, clearing __GFP_MOVABLE in current_gfp_context() has a side effect
to exclude the memory on the ZONE_MOVABLE for allocation target.
To fix these problems, this patch changes the implementation to exclude
CMA area in page allocation. Main point of this change is using the
alloc_flags. alloc_flags is mainly used to control allocation so it fits
for excluding CMA area in allocation.
Fixes:
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Muchun Song
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182f3d7a02 |
mm/page_alloc.c: skip setting nodemask when we are in interrupt
When we are in the interrupt context, it is irrelevant to the current task context. If we use current task's mems_allowed, we can be fair to alloc pages in the fast path and fall back to slow path memory allocation when the current node(which is the current task mems_allowed) does not have enough memory to allocate. In this case, it slows down the memory allocation speed of interrupt context. So we can skip setting the nodemask to allow any node to allocate memory, so that fast path allocation can success. Signed-off-by: Muchun Song <songmuchun@bytedance.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Pekka Enberg <penberg@kernel.org> Cc: David Hildenbrand <david@redhat.com> Link: http://lkml.kernel.org/r/20200706025921.53683-1-songmuchun@bytedance.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Wei Yang
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da41566399 |
mm/page_alloc: fallbacks at most has 3 elements
MIGRAGE_TYPES is used to be the mark of end and there are at most 3 elements for the one dimension array. Reduce to 3 to save little memory. Signed-off-by: Wei Yang <richard.weiyang@linux.alibaba.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: David Hildenbrand <david@redhat.com> Link: http://lkml.kernel.org/r/20200625231022.18784-1-richard.weiyang@linux.alibaba.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Qian Cai
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9e15afa5a8 |
mm/page_alloc: silence a KASAN false positive
kernel_init_free_pages() will use memset() on s390 to clear all pages from
kmalloc_order() which will override KASAN redzones because a redzone was
setup from the end of the allocation size to the end of the last page.
Silence it by not reporting it there. An example of the report is,
BUG: KASAN: slab-out-of-bounds in __free_pages_ok
Write of size 4096 at addr 000000014beaa000
Call Trace:
show_stack+0x152/0x210
dump_stack+0x1f8/0x248
print_address_description.isra.13+0x5e/0x4d0
kasan_report+0x130/0x178
check_memory_region+0x190/0x218
memset+0x34/0x60
__free_pages_ok+0x894/0x12f0
kfree+0x4f2/0x5e0
unpack_to_rootfs+0x60e/0x650
populate_rootfs+0x56/0x358
do_one_initcall+0x1f4/0xa20
kernel_init_freeable+0x758/0x7e8
kernel_init+0x1c/0x170
ret_from_fork+0x24/0x28
Memory state around the buggy address:
000000014bea9f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
000000014bea9f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>000000014beaa000: 03 fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
^
000000014beaa080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
000000014beaa100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe
Fixes:
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Wei Yang
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535b81e209 |
mm/page_alloc.c: remove unnecessary end_bitidx for [set|get]_pfnblock_flags_mask()
After previous cleanup, the end_bitidx is not necessary any more. Signed-off-by: Wei Yang <richard.weiyang@linux.alibaba.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Mel Gorman <mgorman@suse.de> Link: http://lkml.kernel.org/r/20200623124201.8199-4-richard.weiyang@linux.alibaba.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |