mirror of https://gitee.com/openkylin/linux.git
692758 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Linus Torvalds
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a64c40e79f |
sound fixes for 4.13-rc4
Now we hit the usual ASoC-fix-flood in the middle of release. Most of changes are trivial and device-specific, while one significant change is the fix for unbalanced of_graph_*() refcounts. This involved with the change in the graph API itself that had been a bit messy. -----BEGIN PGP SIGNATURE----- iQJCBAABCAAsFiEECxfAB4MH3rD5mfB6bDGAVD0pKaQFAlmESFAOHHRpd2FpQHN1 c2UuZGUACgkQbDGAVD0pKaQ6ow/6A2PhAU8+WfUR0d/EWwJ5Gd+iEnp79jEIvPmX 1tqBFRhft7yVUxK7TDQ0HSQCktDKbmHszUxOga8EU9j6BjNyrvUdr3OY7X8kSCbP kpVQ9R/sHd/0iRDA8Cn+PazO6io3PpqKAvlrMf5p9uSZ+Ic6+MCQAUb5dHgqjOQq kLGIgyOxoziKpMkb7SuLGbxFTJiioe0HFyMSPTHHC5jB4B0pyBhMaIUXlKypnOdk IHt68GuhNG+k20jAqlfRV/HCKPTgMvlZAcU+KNB1KqUpcjTy53Myi1yQ4A/ngfgj rbEObaluJF1G+3texjMRatpzsBwNOitrdtK5yqTncXyrbOR4YUSFxdM0FF7jcvzn tnHpZTCNOAvosQ3K8AuFy4j+kypYEB3MycPMGOFk+BwslFgBME6vBzKyxzGann7y d+2imj7NC/uPor5qpAqw01xpsg57QKOGCzPWO3r/rZg7u20ejiJjVFhRH6hKnS7W NfTpug8O1aedvzOSChYid7ujFrHZhscwDLvqn1qKce5za68cHSNpTDxG0RkwRwAD fBzHTi3yEQKt74Mfb2K7MaY9g9W/oFpNIQBnNyrTYWh8AyumjUoBpq34MiJl5iMm ZV64z7r79ANkE31qNKG8EXLDR8LEymGj2JfMdDuBiVyXkjjEulCzY5KIA5rxQJfG X+4GZmg= =k+0o -----END PGP SIGNATURE----- Merge tag 'sound-4.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "Now we hit the usual ASoC-fix-flood in the middle of release. Most of the changes are trivial and device-specific, while one significant change is the fix for unbalanced of_graph_*() refcounts. This involved a change in the graph API itself that had been a bit messy" * tag 'sound-4.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda - Fix speaker output from VAIO VPCL14M1R device property: Fix usecount for of_graph_get_port_parent() ASoC: rt5665: fix wrong register for bclk ratio control ASoC: Intel: Use MCLK instead of BLCK as the sysclock for RT5514 codec on kabylake platform ASoC: Intel: Enabling ASRC for RT5663 codec on kabylake platform ASoC: codecs: msm8916-analog: fix DIG_CLK_CTL_RXD3_CLK_EN define ASoC: Intel: Skylake: Fix missing sentinels in sst_acpi_mach ASoC: sh: hac: add missing "int ret" ASoC: samsung: odroid: Fix EPLL frequency values ASoC: sgtl5000: Use snd_soc_kcontrol_codec() ASoC: rt5665: fix GPIO6 pin function define ASoC: ux500: Restore platform DAI assignments ASoC: fix pcm-creation regression ASoC: do not close shared backend dailink ASoC: pxa: SND_PXA2XX_SOC should depend on HAS_DMA ASoC: Intel: Skylake: Fix default dma_buffer_size ASoC: rt5663: Update the HW default values based on the shipping version ASoC: imx-ssi: add check on platform_get_irq return value |
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Linus Torvalds
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83b89ea4ad |
IOMMU Fixes for Linux v4.13-rc3
Including: - Fix a scheduling-while-atomic bug in the AMD IOMMU driver. It was found after the checker was enabled earlier. - A fix for the virtual APIC code in the AMD IOMMU driver which delivers device interrupts directly into KVM guests for assigned devices. - Fixes for the recently merged lock-less page-table code for ARM. The redundant TLB syncs got reverted and locks added again around the TLB sync code. - Fix for error handling in arm_smmu_add_device() - Address sanitization fix for arm io-pgtable code -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABAgAGBQJZhDD/AAoJECvwRC2XARrj3YkP/2+yZgffkQj9Xp2izSMgQYyI VqqYj2/oaolcbYqY5iv6OqU/W2soutU9x6Qf/PlJ4aHD+iQMlRwKqWwkiI/k5JKA 7t1qZwzHucygBgrckjZBtNhU8sfGsCPDeu1Vw6o2rLHQvYUBEI6Hk/jS//YKIhrt 453N2z/ABXtjFHYVLtYPrJBvSrhnKHcR55enT1AQL1nKYhF3ZqlDwiv28P6S4JhJ i3OWX8S2jy59Jw3H5FggNBAP4oTN3PrLdnR9EzIB7kkWXC0CJgOmlFiRfNTrh25U +GPXL6NHEt2EuqP+qjH2UV+Lb3IY+uekSusDLemMTIVh1Zs5U/cm5cglHZtaWzBZ tt+ZsGuErFAaJt26ubWOk96+9WQchgfQVedAoIise7sT6OlThQUPba7pyHAiA2/X umm8Fu/78cNDLQNssWNC87xvpV3TqwJVceXqIRmw8oRwTWzMfkkerOZzDhyGO/am UqyulMX7QQrBygmgSzd4qZvOVqRBGO2caSVdsvmrSzYeRXxBlnMrdv+gTxt65Wju m6MkWuFym6CbvWdHg9nUSwuX4eOIP0PpME2zXMlg7DMFJ8AJoABxLdar1cCEOKGi 6Vq5hHQQ8pGKDIVw5Cz3YC45Fg2XOr6RjsTiDZf8gYJsEqhDHZ8XYnZ1GaFsjvVX +653QdN/pqWCdukUC4jc =Z9oV -----END PGP SIGNATURE----- Merge tag 'iommu-fixes-v4.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull IOMMU fixes from Joerg Roedel: - fix a scheduling-while-atomic bug in the AMD IOMMU driver. It was found after the checker was enabled earlier. - a fix for the virtual APIC code in the AMD IOMMU driver which delivers device interrupts directly into KVM guests for assigned devices. - fixes for the recently merged lock-less page-table code for ARM. The redundant TLB syncs got reverted and locks added again around the TLB sync code. - fix for error handling in arm_smmu_add_device() - address sanitization fix for arm io-pgtable code * tag 'iommu-fixes-v4.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu/amd: Fix schedule-while-atomic BUG in initialization code iommu/amd: Enable ga_log_intr when enabling guest_mode iommu/io-pgtable: Sanitise map/unmap addresses iommu/arm-smmu: Fix the error path in arm_smmu_add_device Revert "iommu/io-pgtable: Avoid redundant TLB syncs" iommu/mtk: Avoid redundant TLB syncs locally iommu/arm-smmu: Reintroduce locking around TLB sync operations |
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Linus Torvalds
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8145f373ae |
MMC core:
- Fix NULL pointer dereference for block I/O during hotplug MMC host: - sdhci-of-at91: Fix card detect for non-removable cards -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJZhC3oAAoJEP4mhCVzWIwpaAEP+wbSa4FrPIdpMMy8VWtrvD/m K9GkfcrCbObE7Cmdff7Hy2OhhqNsWBtE0oxsfgf5ynneIGcwXILQAqmNcGEWlHUO 8uR5hI4+Y+ErR6YoNrupPw9rkWeaSiMyeZwlG3DkK1mrdc4P5R6m2UuOPexMWdGS B9rXsCYHa7xKFAgcjaCMbljEUBCfItEEy/JJ7scly4KOJ7MBrGagcS0wYJBXilD+ DMU1ycjxDYQWjwMzY7WPb9N5iu6Juxpj8Tp7vQDHOWSHb1P7HZJ02dkBvDRf63Cz bYpsCrmgGrddo+zSDAoGRiElOzYZPiLU8zT7TuvcVvXrXx1a1u5zAFzbrmasiOpi ChmRn8wBrJTkpdIk38jHpq7eyxPRl21Kif07PL916tVpG6cRqKEozNJiWx8h8SI3 H1uG/MMKqnhygzkG1ComgBxoncE+ZVlTBnn85AgM9M1loYdOLeGKhjFIhFFEITWM amKodARXWpuO21nfd+86sH/9z0rFEQYUlkcJKU8pMRE4ZEWZ70vyP4U9g8RdGR+I nC36393gvjAB3a6TUvcwzjyRdiHLWKxSYarZ88EB2ezqlhnqIiMm49B7/0sBELUd wc6qjRoSLoLzn5Hm6EzmPaYgJ6pBhIVelEnJbNkmM+3aFfWeRewbSnCXG9qq89oa HuY5mse4UVMOlMRUGLWC =VpnQ -----END PGP SIGNATURE----- Merge tag 'mmc-v4.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc Pull MMC fixes from Ulf Hansson: "A couple of mmc fixes intended for v4.13-rc4. MMC core: - Fix NULL pointer dereference for block I/O during hotplug MMC host: - sdhci-of-at91: Fix card detect for non-removable cards" * tag 'mmc-v4.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: block: bypass the queue even if usage is present for hotplug mmc: sdhci-of-at91: force card detect value for non removable devices |
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Linus Torvalds
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47d47585d0 |
just some lonely amd fixes
-----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJZhBe5AAoJEAx081l5xIa+NR8P/02fl5JHVXaPpSvR+VmFzaCD 05yYdc56QhWv81lUWAHEP+pFJTMv49y8qyekqDdEDI4CCP8uU+Sc4zPQ/BgW/62c 9Yqy7RwigEp8FqqttEb3s6RW2OnLTfgXnwvLzXRDyMUkUUBOtL545lgOG/Vrz3Id c+uRrNXlxYuSfoSjoiqP6VsBXXEYI0eZS9oWWlnTsGAvCI3JK/pSTfj9m9nfdXZ/ ByghEEB+PE59m2nP/egp5CJd/3fJ5GVXqK7ROObpz1Hkd7dSZjVALtLE+KB3bUuV OvCfStGwfEHs3lMmjxahIn4fBWOeBh0OtQd3j36It7i0aeTPVpXH+o/O1EseT7Ka gQjr7miBGlZPSJ+EkqObG3Dv2EL3/2S8dDVOLaXbtHXsZHIebumDJ3ogDNq0xPpU mZjtNBvlDbwzmm7dSw6r9rHZBUzCfCEefmYkVS4tVBl2vMoXQJA6FrYGtgVV2eZO xUNEgTcmLqMcP38q9/UWC0ZBOQJLoEY5SfVVaLzIIKqHSBJjAbVJXmrrIuVSmnFT Kie0eBOtMcsToJh7yUR+vvTAByZg4bl8j3hZlX0PtyRwxpavzMvBiHYa4gE2CpU3 EwU7JjqF346CdMvgiRZHpBZXKnGKSrVSDtdnlFrR5C5H7XWTJO3rRPKexcyrCc1F bNo/diEu4KmywYrXA1tT =nQKg -----END PGP SIGNATURE----- Merge tag 'drm-fixes-for-v4.13-rc4' of git://people.freedesktop.org/~airlied/linux Pull drm fixes from Dave Airlie: "Either my email ate everything or everyone is on holidays, either way all I can find is some lonely AMD fixes" [ Europe might be on vacation, and the Pacific NW is too hot for work. ] * tag 'drm-fixes-for-v4.13-rc4' of git://people.freedesktop.org/~airlied/linux: drm/amdgpu: Use list_del_init in amdgpu_mn_unregister drm/amdgpu: Fix undue fallthroughs in golden registers initialization drm/amdgpu: fix header on gfx9 clear state |
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Linus Torvalds
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841fe95303 |
powerpc fixes for 4.13 #5
Fixes for recently merged code:
- a fix for the _PAGE_DEVMAP support, which was breaking KVM on Power9 radix
- avoid a (harmless) lockdep warning in the early SMP code
- return failure for some uses of dma_set_mask() rather than falling back to 32-bits
- fix stack setup in watchdog soft_nmi_common() to use emergency stack
- fix of_irq_to_resource() error check in of_fsl_spi_probe()
Two fixes going to stable:
- fix saving of Transactional Memory SPRs in core dump
- fix __check_irq_replay missing decrementer interrupt
And two misc:
- fix 64-bit boot wrapper build with non-biarch compiler
- work around a POWER9 PMU hang after state-loss idle
Thanks to:
Alistair Popple, Aneesh Kumar K.V, Cyril Bur, Gustavo Romero, Jose Ricardo
Ziviani, Laurent Vivier, Nicholas Piggin, Oliver O'Halloran, Sergei Shtylyov,
Suraj Jitindar Singh, Thomas Gleixner.
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Merge tag 'powerpc-4.13-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Fixes for recently merged code:
- a fix for the _PAGE_DEVMAP support, which was breaking KVM on
Power9 radix
- avoid a (harmless) lockdep warning in the early SMP code
- return failure for some uses of dma_set_mask() rather than falling
back to 32-bits
- fix stack setup in watchdog soft_nmi_common() to use emergency
stack
- fix of_irq_to_resource() error check in of_fsl_spi_probe()
Two fixes going to stable:
- fix saving of Transactional Memory SPRs in core dump
- fix __check_irq_replay missing decrementer interrupt
And two misc:
- fix 64-bit boot wrapper build with non-biarch compiler
- work around a POWER9 PMU hang after state-loss idle
Thanks to: Alistair Popple, Aneesh Kumar K.V, Cyril Bur, Gustavo
Romero, Jose Ricardo Ziviani, Laurent Vivier, Nicholas Piggin, Oliver
O'Halloran, Sergei Shtylyov, Suraj Jitindar Singh, Thomas Gleixner"
* tag 'powerpc-4.13-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/64: Fix __check_irq_replay missing decrementer interrupt
powerpc/perf: POWER9 PMU stops after idle workaround
powerpc/83xx/mpc832x_rdb: fix of_irq_to_resource() error check
powerpc/64s: Fix stack setup in watchdog soft_nmi_common()
powerpc/powernv/pci: Return failure for some uses of dma_set_mask()
powerpc/boot: Fix 64-bit boot wrapper build with non-biarch compiler
powerpc/smp: Call smp_ops->setup_cpu() directly on the boot CPU
powerpc/tm: Fix saving of TM SPRs in core dump
powerpc/mm: Fix pmd/pte_devmap() on non-leaf entries
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David S. Miller
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0ede1c4013 |
sparc64: Fix exception handling in UltraSPARC-III memcpy.
Mikael Pettersson reported that some test programs in the strace-4.18
testsuite cause an OOPS.
After some debugging it turns out that garbage values are returned
when an exception occurs, causing the fixup memset() to be run with
bogus arguments.
The problem is that two of the exception handler stubs write the
successfully copied length into the wrong register.
Fixes:
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Nick Desaulniers
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82cd588052 |
arm64: avoid overflow in VA_START and PAGE_OFFSET
The bitmask used to define these values produces overflow, as seen by
this compiler warning:
arch/arm64/kernel/head.S:47:8: warning:
integer overflow in preprocessor expression
#elif (PAGE_OFFSET & 0x1fffff) != 0
^~~~~~~~~~~
arch/arm64/include/asm/memory.h:52:46: note:
expanded from macro 'PAGE_OFFSET'
#define PAGE_OFFSET (UL(0xffffffffffffffff) << (VA_BITS -
1))
~~~~~~~~~~~~~~~~~~ ^
It would be preferrable to use GENMASK_ULL() instead, but it's not set
up to be used from assembly (the UL() macro token pastes UL suffixes
when not included in assembly sources).
Suggested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Suggested-by: Yury Norov <ynorov@caviumnetworks.com>
Suggested-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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Catalin Marinas
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6d332747fa |
arm64: Fix potential race with hardware DBM in ptep_set_access_flags()
In a system with DBM (dirty bit management) capable agents there is a
possible race between a CPU executing ptep_set_access_flags() (maybe
non-DBM capable) and a hardware update of the dirty state (clearing of
PTE_RDONLY). The scenario:
a) the pte is writable (PTE_WRITE set), clean (PTE_RDONLY set) and old
(PTE_AF clear)
b) ptep_set_access_flags() is called as a result of a read access and it
needs to set the pte to writable, clean and young (PTE_AF set)
c) a DBM-capable agent, as a result of a different write access, is
marking the entry as young (setting PTE_AF) and dirty (clearing
PTE_RDONLY)
The current ptep_set_access_flags() implementation would set the
PTE_RDONLY bit in the resulting value overriding the DBM update and
losing the dirty state.
This patch fixes such race by setting PTE_RDONLY to the most permissive
(lowest value) of the current entry and the new one.
Fixes:
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Arnd Bergmann
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41c454fa0e |
Drop unused VPIF endpoints from device-tree.
They should be used only when an actual remote-endpoint is connected. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJZectgAAoJEGFBu2jqvgRNZdkP/27ovOMGuzleyl18PiLotyXn 98qxZvnFYyEw258vkUJj0N7Rmf3gMnrfbrRIOGXyOIBpZNBkgEqjGlagXn9Z+o8F QOERxzDT5JiM6BbR+tRPOmKc07uuccVskOCoYOZ1mk4c336b/m9dNppdWGGY83LC WJ0OeoFP8k8gUMYqSyKscXyfryP82KbryZH5s5tmSVAnEHf6psUzAUUdQf7An5v2 Up5nD4ljF+leGX6PG8rAFRbMGy/jTHOQi7QafVx3rC+p8SydoUnEWhPTrtkDzRTb bXtpjSUId7n80qKtyI/vD3ABDBajr4RUzYjuXGfSf32A5uvk7xjzUk8QfwWogxv5 fdOga6ogEOUjgB1L+u2uegHQl3CGSZK5sXufoQivcndBgXqA5S9VkQk/FNjAM9vJ twyC+s3pgC7cBrHGmM4QFToubYQthmXOevKmKlbRvXyNFHW6BcIPcbq+6t4IDakd DU7iYRzR+AxVK5fezWOhBxxL2aRK533r/gc1ZOBklRN1gD+5AWLfaQJMNDDdVePJ 8AH+PAZZz2ETXLvMH+D4XSPF6t7gDyZ6Jroh+YJ3i0Y0vOO16Jr2LvJlAClFfQNM +TRjhaGd4WFrUVnpiyPU9l2MrTOmSu4VgEnWvf28KqyHq8fEA3ew9u+vRZhcV/2X SwJX0rE5626UDsieIVGP =rgNN -----END PGP SIGNATURE----- Merge tag 'davinci-fixes-for-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into fixes Pull "DaVinci fixes for v4.13" from Sekhar Nori: Drop unused VPIF endpoints from device-tree. They should be used only when an actual remote-endpoint is connected. * tag 'davinci-fixes-for-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci: ARM: dts: da850-lcdk: drop unused VPIF endpoints ARM: dts: da850-evm: drop unused VPIF endpoints |
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Arnd Bergmann
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ae119859a1 |
Allwinner fixes for 4.13
Two fixes to correct the EMAC blocks memory region size to match the datasheet. One that converts raw A83T clock indices to macros from the clk dt-binding header, completing the A83T sunxi-ng clk driver. -----BEGIN PGP SIGNATURE----- iQJCBAABCgAsFiEE2nN1m/hhnkhOWjtHOJpUIZwPJDAFAll566wOHHdlbnNAY3Np ZS5vcmcACgkQOJpUIZwPJDBBhw//RK8UpKhviq1kdn6yDNKe3dVYxRTGtISvpjJL oPXpstt1b28DdbVjeIzh6jqF2HjjNmfFlLphOoOj1H7qKqhobr9+Cll05BNWbCmH CIL6qL8FT7QyK8yw5sPLcdlNLkNil+KfgnrBf76Crdw0R1HXGENsw+gVE2lVX+tJ yRqhguaQjWNLA5v+nfK4la+Ip1ddgKgiBmkpkq9tuR8hUDe33LHFZxur28EChHb/ P1HXL1DHUn2uO/tyk1TDhpYkNbOGiER4neOeQt21uaKLDaRMmkRlaNHgGg4CQ/fR OYs24Sm0XB9oFVKzz2GttkIkdWTOqRI99VlXHEd3bU3Rc2PdClrdky615qkDn/90 CCjz7ibhnkri5+1/MWVC1iF/sotYnlCKjptXMZNRmqoyC2ol+tkNy84MoHvuWBCU /IzCNuU8sGqC5/PjGNo2LwQNmzkFsk78s0MQAUyxG0isJwMrGQaSXGtOpSLJzUPv MRBqYyK2CQk7gZtDyeZPepUUeQta/bAFIUROeozgTstvib86ywYrflrjkBTEyPar Q+ptcoEgw1FVZZ4cQCGQWkg16dtFPSBMbGAbjlh/9DJXbZU/DVF5XRpTj8FthWm7 Vw/QQx4A18O+oS5/CkBjdltAb4RZIcF2ijAupRbwPIG+pzNVJVJ7JN7BzdVAFAyF cf/Btkw= =aFvT -----END PGP SIGNATURE----- Merge tag 'sunxi-fixes-for-4.13' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into fixes Pull "Allwinner fixes for 4.13" from Chen-Yu Tsai: Two fixes to correct the EMAC blocks memory region size to match the datasheet. One that converts raw A83T clock indices to macros from the clk dt-binding header, completing the A83T sunxi-ng clk driver. * tag 'sunxi-fixes-for-4.13' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: ARM: dts: sun8i: a83t: Switch to CCU device tree binding macros arm64: allwinner: sun50i-a64: Correct emac register size ARM: dts: sunxi: h3/h5: Correct emac register size |
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Arnd Bergmann
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3d8db0a889 |
Qualcomm ARM64 based defconfig Fixes for v4.13-rc2
* Enable missing HWSPINLOCK -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJZerrIAAoJEFKiBbHx2RXVMFMQAKrBeXhmKtlqyVbq4/LWTVt+ uSTbRGOwzQKPpZaaXPZAddL508zNKw/aVyOrWGth7WmAAEHbCsywWLlIie6YhyK0 gck0d6FI2f2U0lG7QrYrGKktQgB8YhFg5XYzuol97jYL7W/NzkXcpOv3NFIGzu2S nyYIO0MeTNinYuQylalbyY5ifT6ckxYgoYc4gvHXoDkIKg8beDYGrEZq5s/l15sO tXEcfJLqd2FL6/jkKQsZCoLtPAUKJBl4ziKCJkQIh2Cm8nikjtRXzSIY5WJC5dNG uE53FMdYdo4yiRU8hqrItXKUh2RyraiNQdWufP3VjOULN2ffVkckMPB7tzLjes24 Ah0joCA1tlpiIEtu1rKM8e4Opn/EgKXXrwr1oxEM12HME/Ph5DX8I5D6g8LhmxB4 9ZI3Lox1dnfr+Rr9xR19hbOG5vF2fQQlneMb5QDmg9kT7+xgQnponCZBSCBtS1rL 0EbpN/qb0+N+/aUTj/1Lvmhi9AY/4+aD5tOWN8XanIahhWKyDRKbT9zELdr80e4z wPK4uPNNaJcFTrCvsOT4C6DBoNE46Ii9GOexGvdK75NoTspe92L/IIGGMLk6l32g eksX9EOyYLs9WZEAX4kYjf5umJvbIMkFQToD0gnA2xsrft5z+xoa5Rgw2CxVaI0w rTHgJbPQ1gyHAlInrBHv =dA4+ -----END PGP SIGNATURE----- Merge tag 'qcom-arm64-defconfig-fixes-for-4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux into fixes Pull "Qualcomm ARM64 based defconfig Fixes for v4.13-rc2" from Andy Gross: * Enable missing HWSPINLOCK * tag 'qcom-arm64-defconfig-fixes-for-4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux: arm64: defconfig: enable missing HWSPINLOCK |
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Marc Gonzalez
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985333b0ee |
ARM: dts: tango4: Request RGMII RX and TX clock delays
RX and TX clock delays are required. Request them explicitly.
Fixes:
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Masahiro Yamada
|
2f4233ee13 |
bus: uniphier-system-bus: set up registers when resuming
When resuming, set up registers that have been lost in the sleep state. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> |
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Arnd Bergmann
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264e22afa3 |
Third Round of Renesas ARM Based SoC Fixes for v4.13
Fix deadlock in regulator quirk for R-Car Gen 2 SoCs The da9063/da9210 regulator quirk for R-Car Gen2 boards uses a bus notifier, and unregisters the notifier when it is no longer needed. However, a notifier must not be unregistered from within the call chain. This bug went unnoticed, as blocking_notifier_chain_unregister() didn't take the semaphore during early boot. This is no longer the case as of upstream commit |
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Arnd Bergmann
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48cb953e6d |
mvebu fixes for 4.13 (part 2)
All the fixes are for ARM64 mvebu:
- Fix the RTC interrupt on A7K/A8K which was missed when switching
from GIC to ICU
- Mark the A7K/A8K crypto engine as dma coherent
- Fix the number of GPIO on south bridge on Armada 3700
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Merge tag 'mvebu-fixes-4.13-2' of git://git.infradead.org/linux-mvebu into fixes
Pull "mvebu fixes for 4.13 (part 2)" from Gregory CLEMENT:
All the fixes are for ARM64 mvebu:
- Fix the RTC interrupt on A7K/A8K which was missed when switching
from GIC to ICU
- Mark the A7K/A8K crypto engine as dma coherent
- Fix the number of GPIO on south bridge on Armada 3700
* tag 'mvebu-fixes-4.13-2' of git://git.infradead.org/linux-mvebu:
ARM64: dts: marvell: armada-37xx: Fix the number of GPIO on south bridge
arm64: dts: marvell: mark the cp110 crypto engine as dma coherent
arm64: dts: marvell: use ICU for the CP110 slave RTC
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Arnd Bergmann
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b99bba09a5 |
Amlogic fixes for v4.13-rc
- 2 minor DT fixes -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABCAAGBQJZf0PMAAoJEFk3GJrT+8ZlJskP/0JXcJt1I4myJv9A9z/+t0nh 7vT8H/ZwSyvK+/Iq1ccrf0Abe/c3445yHCwnF0T87R14A+oVVML5+uDolHIRZjlf Wka34OoZFR9qTjphsFfQdZ0YcId7+a3BXNyvdkIWytWB+tzy/gpvlExBd54wJy0c rceTEJsdmyObBFTmMTdlTzKQYLvurWoZ7d/N+T81UD3g0Xmq0EIOk0pEHSThK4SS yQQWfRu7PCWDfXVu7qImalniaSa6wriHFC8hnrmaLfm2a9axfrTpvVknYuZUROlj 3T0Hgq3YHYe+BpS1P1Wryh60Yc8umbGy5JYg4GFOlNEGT9lBflk7nyG25aAbtwXY BUU/r1cA1K+wR3XbUK9dpxW0GeCDTsQkHY9SA6+Aj5utNcMVhlnmGAHxJX9j1a8n OhZtk339oCuBaf2Eg67OLvNGCPN21LAr2PL22LEGWkKSEUI61/1ZP1jjuCjN8Yk0 spXdFshdkYJyMqA4VuR05R5sBgqO25hXVDB2RYE4OuKINvAOfckgY9XpUhndxuYx VVfX1up4bwoAUzVR+7XIsVrHaDR8pNS/Uv6kbhfB3X2c/jyPD1/Rc3T8p5DYirt7 DUPv8MJm/cwEC6uinQyqHTgB0tYLTWEY2+sv8NI2u8geYoJZO+Kt/12f3gcx296e 82LIlHnYKfYqUaqFwRRJ =Z5d3 -----END PGP SIGNATURE----- Merge tag 'amlogic-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into fixes Pull "Amlogic fixes for v4.13-rc" from Kevin Hilman: - 2 minor DT fixes * tag 'amlogic-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic: ARM64: dts: meson-gxl-s905x-libretech-cc: fixup board definition ARM64: dts: meson-gx: use specific compatible for the AO pwms |
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Arnd Bergmann
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e86c86bc8e |
Fix for the recently added mali dt support. The example
showed a wrong value, so fix it before it gets copy-pasted to much. -----BEGIN PGP SIGNATURE----- iQFEBAABCAAuFiEE7v+35S2Q1vLNA3Lx86Z5yZzRHYEFAlmEM5wQHGhlaWtvQHNu dGVjaC5kZQAKCRDzpnnJnNEdgVn+B/9Xy9km3t8cFVQ//SjNm1MEfiyVrgCnH6TH trLit6AKq19LTIfeyI2RQucEXB0Csw2+YNh4q9Td6utnc0S3OpzueFsfKfAD9xif WpRR6MJjCSlIQfhd09XuKyWoDwwNmnidv+Xd/H3M83dTOzoPmy0aDkn/shc1I+Tw gL0CbLPz1HuHuG55S5EkxcBNi/Mj34qI5e3O8hrqzpfzmc1CdQ38zblfkiyu94v7 f/sVUv8p2YHyfvIJ1n1DxQx7lvAxGzo3Q7fXqS9D1jJx4iDWWFaraLMPu3NztLcv 1XrawJTdGZ9vTJSmzcEwH7JeAUHX41wIWjf/jEx9iE2R9EY0lyLo =B0nU -----END PGP SIGNATURE----- Merge tag 'v4.13-rockchip-dts32fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into fixes Pull "Rockchip dts32 fixes for 4.13" from Heiko Stübner: Fix for the recently added mali dt support. The example showed a wrong value, so fix it before it gets copy-pasted to much. * tag 'v4.13-rockchip-dts32fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip: ARM: dts: rockchip: fix mali gpu node on rk3288 dt-bindings: gpu: drop wrong compatible from midgard binding example |
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Nicholas Piggin
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3db40c312c |
powerpc/64: Fix __check_irq_replay missing decrementer interrupt
If the decrementer wraps again and de-asserts the decrementer
exception while hard-disabled, __check_irq_replay() has a test to
notice the wrap when interrupts are re-enabled.
The decrementer check must be done when clearing the PACA_IRQ_HARD_DIS
flag, not when the PACA_IRQ_DEC flag is tested. Previously this worked
because the decrementer interrupt was always the first one checked
after clearing the hard disable flag, but HMI check was moved ahead of
that, which introduced this bug.
This can cause a missed decrementer interrupt if we soft-disable
interrupts then take an HMI which is recorded in irq_happened, then
hard-disable interrupts for > 4s to wrap the decrementer.
Fixes:
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Nicholas Piggin
|
09539f9b12 |
powerpc/perf: POWER9 PMU stops after idle workaround
POWER9 DD2 PMU can stop after a state-loss idle in some conditions. A solution is to set then clear MMCRA[60] after wake from state-loss idle. MMCRA[60] is a non-architected bit, see the user manual for details. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Acked-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Reviewed-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com> Acked-by: Anton Blanchard <anton@samba.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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Dave Airlie
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5669b9989e |
Merge branch 'drm-fixes-4.13' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Just a few small fixes for 4.13. * 'drm-fixes-4.13' of git://people.freedesktop.org/~agd5f/linux: drm/amdgpu: Use list_del_init in amdgpu_mn_unregister drm/amdgpu: Fix undue fallthroughs in golden registers initialization drm/amdgpu: fix header on gfx9 clear state |
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Linus Torvalds
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869c058fbe |
VFIO fixes for v4.13-rc4
- SPAPR/EEH config build fix (Murilo Opsfelder Araujo) - Fix possible device lock deadlock (Alex Williamson) - Correctly size integrated endpoint PCIe capabilities (Alex Williamson) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (GNU/Linux) iQIcBAABAgAGBQJZg5dIAAoJECObm247sIsijNgP/3bcd0y1JQD5n6aCgZGdUxI1 RY/n1guN3RiiQFKpG3sGKGNOg1GL6HdoP9ifSH44ZCpTdVogGNok5ZPlyl8AkbHA r5hAhxKAaSC/PCNusVxAqTFHH2wQoAKe3AVpoWsUJ2sdWmIYBZURdgxKkdHwV+UN 66ndlUodmmVylVpMdhpEh/T07D4rIDcAIf3fQeXT2ajNr7qL1ObTEyBnR0CL2kAL w6DeUOVXp2sKFTA4yVApjb2hIGCass9tlW2fWcieJd06+PGz2ExMrMGZpCqRsQJt UonMDzXRav/IFxkK+x2kwE9C4537bmg2DPvKhXd91pt3La2senSCzYGteYIL4/Uc madQgUPpVDx5NcqeKW3f1isCK+3qulfw6BtEckQiRqvJI/ftdZf/T93moLEUtQd7 axbExt2lLh1RS0xiqm2wmpO34oW/UbHhBX435/YPbh8JrmqiHvVtoJAzIq17buPR f4z+We3JvyOJ9kX5TgKT+lfobz7ZNYwK9WtmVh7mTNv7WYvfiZtJgQqqsOVXL8ql KVecEfbTpfG07ofBxUCQkWHCyH4tglyzyaCz2uh37G2mtLvaW6CWDk8A5SMpFAd+ ActM4icBiFLwUXIAAtnA3cDqJlYdXVGWynSs4MJAUJZtra5nNSTuGvd4Eil2SaFf dRVpner34sWYWGBRLlTo =dF3c -----END PGP SIGNATURE----- Merge tag 'vfio-v4.13-rc4' of git://github.com/awilliam/linux-vfio Pull VFIO fixes from Alex Williamson: - SPAPR/EEH config build fix (Murilo Opsfelder Araujo) - Fix possible device lock deadlock (Alex Williamson) - Correctly size integrated endpoint PCIe capabilities (Alex Williamson) * tag 'vfio-v4.13-rc4' of git://github.com/awilliam/linux-vfio: vfio/pci: Fix handling of RC integrated endpoint PCIe capability size vfio/pci: Use pci_try_reset_function() on initial open include/linux/vfio.h: Guard powerpc-specific functions with CONFIG_VFIO_SPAPR_EEH |
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Linus Torvalds
|
995d03ae26 |
Merge branch 'akpm' (patches from Andrew)
Merge misc fixes from Andrew Morton: "15 fixes" [ This does not merge the "fortify: use WARN instead of BUG for now" patch, which needs a bit of extra work to build cleanly with all configurations. Arnd is on it. - Linus ] * emailed patches from Andrew Morton <akpm@linux-foundation.org>: ocfs2: don't clear SGID when inheriting ACLs mm: allow page_cache_get_speculative in interrupt context userfaultfd: non-cooperative: flush event_wqh at release time ipc: add missing container_of()s for randstruct cpuset: fix a deadlock due to incomplete patching of cpusets_enabled() userfaultfd_zeropage: return -ENOSPC in case mm has gone mm: take memory hotplug lock within numa_zonelist_order_handler() mm/page_io.c: fix oops during block io poll in swapin path zram: do not free pool->size_class kthread: fix documentation build warning kasan: avoid -Wmaybe-uninitialized warning userfaultfd: non-cooperative: notify about unmap of destination during mremap mm, mprotect: flush TLB if potentially racing with a parallel reclaim leaving stale TLB entries pid: kill pidhash_size in pidhash_init() mm/hugetlb.c: __get_user_pages ignores certain follow_hugetlb_page errors |
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Linus Torvalds
|
8d3fe85f07 |
ACPI fixes for v4.13-rc4
- Fix a device ID of Hisilicon Hip07/08 in the ACPI APD (AMD SoC)
driver (Hanjun Guo).
- Fix list corruption (introduced during the 4.11 cycle) in the ACPI
LPSS (Intel SoC) driver (Hans de Goede).
- Fix PCC mailbox handling code crash during initialization when
PCCT is not present and PCC channel 0 is requested (Hoan Tran).
- Fix a WDAT watchdog initialization issue causing platform device
creation to fail due to partially overlapping address ranges in
resources (Ryan Kennedy).
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Merge tag 'acpi-4.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These fix two issues in the ACPI SoC drivers (Intel LPSS and AMD APD),
a crash in the PCC mailbox initialization code and a WDAT watchdog
initialization failure.
Specifics:
- Fix a device ID of Hisilicon Hip07/08 in the ACPI APD (AMD SoC)
driver (Hanjun Guo).
- Fix list corruption (introduced during the 4.11 cycle) in the ACPI
LPSS (Intel SoC) driver (Hans de Goede).
- Fix PCC mailbox handling code crash during initialization when PCCT
is not present and PCC channel 0 is requested (Hoan Tran).
- Fix a WDAT watchdog initialization issue causing platform device
creation to fail due to partially overlapping address ranges in
resources (Ryan Kennedy)"
* tag 'acpi-4.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: APD: Fix HID for Hisilicon Hip07/08
mailbox: pcc: Fix crash when request PCC channel 0
ACPI / watchdog: Fix init failure with overlapping register regions
ACPI / LPSS: Only call pwm_add_table() for the first PWM controller
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Linus Torvalds
|
73784fb73b |
Power management fixes for v4.13-rc4
- Fix the handling of the scaling_cur_freq cpufreq policy attribute
on x86 systems with the MPERF/APERF registers present to make it
behave more as expected after recent changes (Rafael Wysocki).
- Drop a leftover callback from the intel_pstate driver which also
prevents the cpuinfo_cur_freq cpufreq policy attribute from being
incorrectly exposed when intel_pstate works in the active mode
(Rafael Wysocki).
- Add a missing piece describing the cpuinfo_cur_freq policy
attribute to cpufreq documentation (Rafael Wysocki).
- Fix up a recently added part of the Thunderbolt driver to avoid
aborting system suspends if its mailbox commands time out (Rafael
Wysocki).
- Update device runtime PM framework documentation to reflect the
current behavior of the code (Johan Hovold).
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Merge tag 'pm-4.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix two cpufreq issues, one introduced recently and one related
to recent changes, fix cpufreq documentation, fix up recently added
code in the Thunderbolt driver and update runtime PM framework
documentation.
Specifics:
- Fix the handling of the scaling_cur_freq cpufreq policy attribute
on x86 systems with the MPERF/APERF registers present to make it
behave more as expected after recent changes (Rafael Wysocki).
- Drop a leftover callback from the intel_pstate driver which also
prevents the cpuinfo_cur_freq cpufreq policy attribute from being
incorrectly exposed when intel_pstate works in the active mode
(Rafael Wysocki).
- Add a missing piece describing the cpuinfo_cur_freq policy
attribute to cpufreq documentation (Rafael Wysocki).
- Fix up a recently added part of the Thunderbolt driver to avoid
aborting system suspends if its mailbox commands time out (Rafael
Wysocki).
- Update device runtime PM framework documentation to reflect the
current behavior of the code (Johan Hovold)"
* tag 'pm-4.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thunderbolt: icm: Ignore mailbox errors in icm_suspend()
cpufreq: x86: Make scaling_cur_freq behave more as expected
PM / runtime: Document new pm_runtime_set_suspended() constraint
cpufreq: docs: Add missing cpuinfo_cur_freq description
cpufreq: intel_pstate: Drop ->get from intel_pstate structure
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Rafael J. Wysocki
|
3de559d4df |
Merge branches 'acpi-soc', 'acpi-wdat' and 'acpi-cppc'
* acpi-soc: ACPI: APD: Fix HID for Hisilicon Hip07/08 ACPI / LPSS: Only call pwm_add_table() for the first PWM controller * acpi-wdat: ACPI / watchdog: Fix init failure with overlapping register regions * acpi-cppc: mailbox: pcc: Fix crash when request PCC channel 0 |
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Rafael J. Wysocki
|
78aa904a77 |
Merge branches 'pm-core' and 'pm-misc'
* pm-core: PM / runtime: Document new pm_runtime_set_suspended() constraint * pm-misc: thunderbolt: icm: Ignore mailbox errors in icm_suspend() |
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|
Rafael J. Wysocki
|
8a05c3115d |
Merge branches 'pm-cpufreq-x86', 'pm-cpufreq-docs' and 'intel_pstate'
* pm-cpufreq-x86: cpufreq: x86: Make scaling_cur_freq behave more as expected * pm-cpufreq-docs: cpufreq: docs: Add missing cpuinfo_cur_freq description * intel_pstate: cpufreq: intel_pstate: Drop ->get from intel_pstate structure |
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Radim Krčmář
|
53a5abd839 |
KVM/ARM Fixes for v4.13-rc4
- Yet another race with VM destruction plugged - A set of small vgic fixes -----BEGIN PGP SIGNATURE----- iQJJBAABCAAzFiEEn9UcU+C1Yxj9lZw9I9DQutE9ekMFAlmDOZ4VHG1hcmMuenlu Z2llckBhcm0uY29tAAoJECPQ0LrRPXpDnwQP/ji7d7bbWybmeuWKXm8TYt6CNPBr JC57OQHytU1+ccagjeUPaAgUAqWSQWOwfbqPuS1afshJu1ZZsN851QNmcr5W6bXQ EwjICGWcAdKSMLnhRDdf+uXQbFSkkcaxsXnJWjmD0EE8ylaXCCkdV278xhTx0hVO yiov/xWNzLMa3O3W/l4SIKQ4UNyeQ7f+Od1Vkf7iUpaaFcz6s3RNsPAOwc7Thq7L eLk4SgXMLDNHz5HwdLoOp3RwQsNe9A7uh05z9VOav0YAyLG5vf29JhMroCO/4P/x 1HgWvpGwzxAUqUcHbW4FSOsbydEltlWMdfSoAF7BtPCLudmmsxfMJJlK3FKLvV+P MsO2FdXiz6/ZLI9/ds7YJDOfc1cGSVK07Efx+SLXD5FAnkFYq4SElmI4sK8BWc5U Dugw3j8u9M6jTiVKBioFo7yRT5iHG9O0A+6DtsMQ0iREfLolC7EEzpfGB/vWpKk5 BbdwDUiu6JxXEBJJqyP948iGfuIrikAx2mcf3dmEHVKhEnKi+MN/H5c9BKGAJ3sf Fm1xF99IG+m3L3zXiukQ11OqsCx32kqLiXaejVttscFg/C33OYmGOhsk066hHCzx LtoxrHUl7rwF+ssnKHq4Az2mYzZtquEq13O5tgleQcVwH/2+6EgWDf3mDSy1em0h 5IXgqk+PsaQ5n0jL =TMR9 -----END PGP SIGNATURE----- Merge tag 'kvm-arm-for-v4.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm KVM/ARM Fixes for v4.13-rc4 - Yet another race with VM destruction plugged - A set of small vgic fixes |
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|
Christoffer Dall
|
3af4e414af |
KVM: arm/arm64: vgic: Use READ_ONCE fo cmpxchg
There is a small chance that the compiler could generate separate loads for the dist->propbaser which could be modified from another CPU. As we want to make sure we atomically update the entire value, and don't race with other updates, guarantee that the cmpxchg operation compares against the original value. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Christoffer Dall <cdall@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> |
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|
Wanpeng Li
|
6550c4df7e |
KVM: nVMX: Fix interrupt window request with "Acknowledge interrupt on exit"
------------[ cut here ]------------ WARNING: CPU: 5 PID: 2288 at arch/x86/kvm/vmx.c:11124 nested_vmx_vmexit+0xd64/0xd70 [kvm_intel] CPU: 5 PID: 2288 Comm: qemu-system-x86 Not tainted 4.13.0-rc2+ #7 RIP: 0010:nested_vmx_vmexit+0xd64/0xd70 [kvm_intel] Call Trace: vmx_check_nested_events+0x131/0x1f0 [kvm_intel] ? vmx_check_nested_events+0x131/0x1f0 [kvm_intel] kvm_arch_vcpu_ioctl_run+0x5dd/0x1be0 [kvm] ? vmx_vcpu_load+0x1be/0x220 [kvm_intel] ? kvm_arch_vcpu_load+0x62/0x230 [kvm] kvm_vcpu_ioctl+0x340/0x700 [kvm] ? kvm_vcpu_ioctl+0x340/0x700 [kvm] ? __fget+0xfc/0x210 do_vfs_ioctl+0xa4/0x6a0 ? __fget+0x11d/0x210 SyS_ioctl+0x79/0x90 do_syscall_64+0x8f/0x750 ? trace_hardirqs_on_thunk+0x1a/0x1c entry_SYSCALL64_slow_path+0x25/0x25 This can be reproduced by booting L1 guest w/ 'noapic' grub parameter, which means that tells the kernel to not make use of any IOAPICs that may be present in the system. Actually external_intr variable in nested_vmx_vmexit() is the req_int_win variable passed from vcpu_enter_guest() which means that the L0's userspace requests an irq window. I observed the scenario (!kvm_cpu_has_interrupt(vcpu) && L0's userspace reqeusts an irq window) is true, so there is no interrupt which L1 requires to inject to L2, we should not attempt to emualte "Acknowledge interrupt on exit" for the irq window requirement in this scenario. This patch fixes it by not attempt to emulate "Acknowledge interrupt on exit" if there is no L1 requirement to inject an interrupt to L2. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Radim Krčmář <rkrcmar@redhat.com> Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com> [Added code comment to make it obvious that the behavior is not correct. We should do a userspace exit with open interrupt window instead of the nested VM exit. This patch still improves the behavior, so it was accepted as a (temporary) workaround.] Signed-off-by: Radim Krčmář <rkrcmar@redhat.com> |
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Shawn Lin
|
7c84b8b43d |
mmc: block: bypass the queue even if usage is present for hotplug
The commit |
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|
Ludovic Desroches
|
7a1e3f1431 |
mmc: sdhci-of-at91: force card detect value for non removable devices
When the device is non removable, the card detect signal is often used
for another purpose i.e. muxed to another SoC peripheral or used as a
GPIO. It could lead to wrong behaviors depending the default value of
this signal if not muxed to the SDHCI controller.
Fixes:
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|
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Linus Torvalds
|
19ec50a438 |
Two more NFS client bugfixes for 4.13
Stable fix: - Fix EXCHANGE_ID corrupt verifier issue Other fix: - Fix double frees in nfs4_test_session_trunk() -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEnZ5MQTpR7cLU7KEp18tUv7ClQOsFAlmCNJAACgkQ18tUv7Cl QOvlKhAAjjKMtdwYDV7B3SJvDfa5KNH9nNaMjKoD/OzWavDL7jRVRUWayeJiy4sf wJAMsG280ztag1Mr/OnClESZThWNrHTnKjq/P8kuefJz+pPvWP+AaQ/8QSM/rulM Y7qfh+FZb2t7lK80VAZTXEi4bvQzlkIV2285a34VIUm3VTpwl3HvltkBMLFztDSb sdaQh+N48FOYdG9RMncxpzFfRvUILzP9GFMg6WAFAcbr1wSsT9MfLqd+ANgOidE8 X2Ch9l0jN51m1dFGmMUZ5HMmuhUh2m50SXhmUOTpS7fj+k11OWsV2IIWHKPk/LjI 5E0aUPDU2TOE9noLSfkguAyxvqAGeAHPDIE7QM9vTGgktzXWGzh++ODeSzkIDp+5 iZ+cYLkme1lOg1nEqj1/SrIZXHP7ZCvK8iqNgoqT8rIp6zE1tLPnNAbRDmnwC/VH PrfINATV8llN/3vFojWJfD1enDe3+dALPINLVQOjwjafq6d5/hzRdCGqWpCDjmlU esDoCkoWGUjadIr6EZGtDAzSZgafsUx6d6QnGtkIUsz1d0FIXH6holB5EKaQpOLf dVb9iO5R2EcVP+WvB3KjA5y6MCNvoVqebxMvLBPCYsu3fI8fQ0sgSjgSJXi0fRzg G7DUsKcBGVKarDMXTUReL2G6lN7h0f5EsM1WnA9KF0TV9aah/ZE= =Ddq9 -----END PGP SIGNATURE----- Merge tag 'nfs-for-4.13-4' of git://git.linux-nfs.org/projects/anna/linux-nfs Pull NFS client fixes from Anna Schumaker: "Two fixes from Trond this time, now that he's back from his vacation. The first is a stable fix for the EXCHANGE_ID issue on the mailing list, and the other fixes a double-free situation that he found at the same time. Stable fix: - Fix EXCHANGE_ID corrupt verifier issue Other fix: - Fix double frees in nfs4_test_session_trunk()" * tag 'nfs-for-4.13-4' of git://git.linux-nfs.org/projects/anna/linux-nfs: NFSv4: Fix double frees in nfs4_test_session_trunk() NFSv4: Fix EXCHANGE_ID corrupt verifier issue |
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Annie Cherkaev
|
9f5af546e6 |
isdn/i4l: fix buffer overflow
This fixes a potential buffer overflow in isdn_net.c caused by an
unbounded strcpy.
[ ISDN seems to be effectively unmaintained, and the I4L driver in
particular is long deprecated, but in case somebody uses this..
- Linus ]
Signed-off-by: Jiten Thakkar <jitenmt@gmail.com>
Signed-off-by: Annie Cherkaev <annie.cherk@gmail.com>
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: Kees Cook <keescook@chromium.org>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Tero Kristo
|
f54d2cd3c1 |
clk: keystone: sci-clk: Fix sci_clk_get
Currently a bug in the sci_clk_get implementation causes it to always
return a clock belonging to the last device in the static list of clock
data. This is due to a bug in the init code that causes the array
used by sci_clk_get to only be populated with the clocks for the last
device, as each device overwrites the entire array with its own clocks.
Fix this by calculating the actual number of clocks for the SoC, and
allocating the whole array in one go. Also, we don't need the handle
to the init data array anymore after doing this, instead we can
just compare the dev_id / clk_id against the registered clocks and
use binary search for speed.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Reported-by: Dave Gerlach <d-gerlach@ti.com>
Fixes:
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|
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Jan Kara
|
19ec8e4858 |
ocfs2: don't clear SGID when inheriting ACLs
When new directory 'DIR1' is created in a directory 'DIR0' with SGID bit
set, DIR1 is expected to have SGID bit set (and owning group equal to
the owning group of 'DIR0'). However when 'DIR0' also has some default
ACLs that 'DIR1' inherits, setting these ACLs will result in SGID bit on
'DIR1' to get cleared if user is not member of the owning group.
Fix the problem by moving posix_acl_update_mode() out of ocfs2_set_acl()
into ocfs2_iop_set_acl(). That way the function will not be called when
inheriting ACLs which is what we want as it prevents SGID bit clearing
and the mode has been properly set by posix_acl_create() anyway. Also
posix_acl_chmod() that is calling ocfs2_set_acl() takes care of updating
mode itself.
Fixes:
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Kan Liang
|
1ee1c3f5b5 |
mm: allow page_cache_get_speculative in interrupt context
Kernel panic when calling the IRQ-safe __get_user_pages_fast in NMI handler. The bug was introduced by commit |
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Mike Rapoport
|
5a18b64e3f |
userfaultfd: non-cooperative: flush event_wqh at release time
There may still be threads waiting on event_wqh at the time the
userfault file descriptor is closed. Flush the events wait-queue to
prevent waiting threads from hanging.
Link: http://lkml.kernel.org/r/1501398127-30419-1-git-send-email-rppt@linux.vnet.ibm.com
Fixes:
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|
|
Kees Cook
|
ade9f91b32 |
ipc: add missing container_of()s for randstruct
When building with the randstruct gcc plugin, the layout of the IPC
structs will be randomized, which requires any sub-structure accesses to
use container_of(). The proc display handlers were missing the needed
container_of()s since the iterator is passing in the top-level struct
kern_ipc_perm.
This would lead to crashes when running the "lsipc" program after the
system had IPC registered (e.g. after starting up Gnome):
general protection fault: 0000 [#1] PREEMPT SMP
...
RIP: 0010:shm_add_rss_swap.isra.1+0x13/0xa0
...
Call Trace:
sysvipc_shm_proc_show+0x5e/0x150
sysvipc_proc_show+0x1a/0x30
seq_read+0x2e9/0x3f0
...
Link: http://lkml.kernel.org/r/20170730205950.GA55841@beast
Fixes:
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|
|
Dima Zavin
|
89affbf5d9 |
cpuset: fix a deadlock due to incomplete patching of cpusets_enabled()
In codepaths that use the begin/retry interface for reading
mems_allowed_seq with irqs disabled, there exists a race condition that
stalls the patch process after only modifying a subset of the
static_branch call sites.
This problem manifested itself as a deadlock in the slub allocator,
inside get_any_partial. The loop reads mems_allowed_seq value (via
read_mems_allowed_begin), performs the defrag operation, and then
verifies the consistency of mem_allowed via the read_mems_allowed_retry
and the cookie returned by xxx_begin.
The issue here is that both begin and retry first check if cpusets are
enabled via cpusets_enabled() static branch. This branch can be
rewritted dynamically (via cpuset_inc) if a new cpuset is created. The
x86 jump label code fully synchronizes across all CPUs for every entry
it rewrites. If it rewrites only one of the callsites (specifically the
one in read_mems_allowed_retry) and then waits for the
smp_call_function(do_sync_core) to complete while a CPU is inside the
begin/retry section with IRQs off and the mems_allowed value is changed,
we can hang.
This is because begin() will always return 0 (since it wasn't patched
yet) while retry() will test the 0 against the actual value of the seq
counter.
The fix is to use two different static keys: one for begin
(pre_enable_key) and one for retry (enable_key). In cpuset_inc(), we
first bump the pre_enable key to ensure that cpuset_mems_allowed_begin()
always return a valid seqcount if are enabling cpusets. Similarly, when
disabling cpusets via cpuset_dec(), we first ensure that callers of
cpuset_mems_allowed_retry() will start ignoring the seqcount value
before we let cpuset_mems_allowed_begin() return 0.
The relevant stack traces of the two stuck threads:
CPU: 1 PID: 1415 Comm: mkdir Tainted: G L 4.9.36-00104-g540c51286237 #4
Hardware name: Default string Default string/Hardware, BIOS 4.29.1-20170526215256 05/26/2017
task: ffff8817f9c28000 task.stack: ffffc9000ffa4000
RIP: smp_call_function_many+0x1f9/0x260
Call Trace:
smp_call_function+0x3b/0x70
on_each_cpu+0x2f/0x90
text_poke_bp+0x87/0xd0
arch_jump_label_transform+0x93/0x100
__jump_label_update+0x77/0x90
jump_label_update+0xaa/0xc0
static_key_slow_inc+0x9e/0xb0
cpuset_css_online+0x70/0x2e0
online_css+0x2c/0xa0
cgroup_apply_control_enable+0x27f/0x3d0
cgroup_mkdir+0x2b7/0x420
kernfs_iop_mkdir+0x5a/0x80
vfs_mkdir+0xf6/0x1a0
SyS_mkdir+0xb7/0xe0
entry_SYSCALL_64_fastpath+0x18/0xad
...
CPU: 2 PID: 1 Comm: init Tainted: G L 4.9.36-00104-g540c51286237 #4
Hardware name: Default string Default string/Hardware, BIOS 4.29.1-20170526215256 05/26/2017
task: ffff8818087c0000 task.stack: ffffc90000030000
RIP: int3+0x39/0x70
Call Trace:
<#DB> ? ___slab_alloc+0x28b/0x5a0
<EOE> ? copy_process.part.40+0xf7/0x1de0
__slab_alloc.isra.80+0x54/0x90
copy_process.part.40+0xf7/0x1de0
copy_process.part.40+0xf7/0x1de0
kmem_cache_alloc_node+0x8a/0x280
copy_process.part.40+0xf7/0x1de0
_do_fork+0xe7/0x6c0
_raw_spin_unlock_irq+0x2d/0x60
trace_hardirqs_on_caller+0x136/0x1d0
entry_SYSCALL_64_fastpath+0x5/0xad
do_syscall_64+0x27/0x350
SyS_clone+0x19/0x20
do_syscall_64+0x60/0x350
entry_SYSCALL64_slow_path+0x25/0x25
Link: http://lkml.kernel.org/r/20170731040113.14197-1-dmitriyz@waymo.com
Fixes:
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Mike Rapoport
|
9d95aa4bad |
userfaultfd_zeropage: return -ENOSPC in case mm has gone
In the non-cooperative userfaultfd case, the process exit may race with
outstanding mcopy_atomic called by the uffd monitor. Returning -ENOSPC
instead of -EINVAL when mm is already gone will allow uffd monitor to
distinguish this case from other error conditions.
Unfortunately I overlooked userfaultfd_zeropage when updating
userfaultd_copy().
Link: http://lkml.kernel.org/r/1501136819-21857-1-git-send-email-rppt@linux.vnet.ibm.com
Fixes:
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|
Heiko Carstens
|
167d0f258f |
mm: take memory hotplug lock within numa_zonelist_order_handler()
Andre Wild reported the following warning: WARNING: CPU: 2 PID: 1205 at kernel/cpu.c:240 lockdep_assert_cpus_held+0x4c/0x60 Modules linked in: CPU: 2 PID: 1205 Comm: bash Not tainted 4.13.0-rc2-00022-gfd2b2c57ec20 #10 Hardware name: IBM 2964 N96 702 (z/VM 6.4.0) task: 00000000701d8100 task.stack: 0000000073594000 Krnl PSW : 0704f00180000000 0000000000145e24 (lockdep_assert_cpus_held+0x4c/0x60) ... Call Trace: lockdep_assert_cpus_held+0x42/0x60) stop_machine_cpuslocked+0x62/0xf0 build_all_zonelists+0x92/0x150 numa_zonelist_order_handler+0x102/0x150 proc_sys_call_handler.isra.12+0xda/0x118 proc_sys_write+0x34/0x48 __vfs_write+0x3c/0x178 vfs_write+0xbc/0x1a0 SyS_write+0x66/0xc0 system_call+0xc4/0x2b0 locks held by bash/1205: #0: (sb_writers#4){.+.+.+}, at: vfs_write+0xa6/0x1a0 #1: (zl_order_mutex){+.+...}, at: numa_zonelist_order_handler+0x44/0x150 #2: (zonelists_mutex){+.+...}, at: numa_zonelist_order_handler+0xf4/0x150 Last Breaking-Event-Address: lockdep_assert_cpus_held+0x48/0x60 This can be easily triggered with e.g. echo n > /proc/sys/vm/numa_zonelist_order In commit |
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|
Tetsuo Handa
|
b0ba2d0faf |
mm/page_io.c: fix oops during block io poll in swapin path
When a thread is OOM-killed during swap_readpage() operation, an oops
occurs because end_swap_bio_read() is calling wake_up_process() based on
an assumption that the thread which called swap_readpage() is still
alive.
Out of memory: Kill process 525 (polkitd) score 0 or sacrifice child
Killed process 525 (polkitd) total-vm:528128kB, anon-rss:0kB, file-rss:4kB, shmem-rss:0kB
oom_reaper: reaped process 525 (polkitd), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC
Modules linked in: nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ipt_REJECT nf_reject_ipv4 ip6t_REJECT nf_reject_ipv6 xt_conntrack ip_set nfnetlink ebtable_nat ebtable_broute bridge stp llc ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_raw iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_raw ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter coretemp ppdev pcspkr vmw_balloon sg shpchp vmw_vmci parport_pc parport i2c_piix4 ip_tables xfs libcrc32c sd_mod sr_mod cdrom ata_generic pata_acpi vmwgfx ahci libahci drm_kms_helper ata_piix syscopyarea sysfillrect sysimgblt fb_sys_fops mptspi scsi_transport_spi ttm e1000 mptscsih drm mptbase i2c_core libata serio_raw
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.13.0-rc2-next-20170725 #129
Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 07/31/2013
task: ffffffffb7c16500 task.stack: ffffffffb7c00000
RIP: 0010:__lock_acquire+0x151/0x12f0
Call Trace:
<IRQ>
lock_acquire+0x59/0x80
_raw_spin_lock_irqsave+0x3b/0x4f
try_to_wake_up+0x3b/0x410
wake_up_process+0x10/0x20
end_swap_bio_read+0x6f/0xf0
bio_endio+0x92/0xb0
blk_update_request+0x88/0x270
scsi_end_request+0x32/0x1c0
scsi_io_completion+0x209/0x680
scsi_finish_command+0xd4/0x120
scsi_softirq_done+0x120/0x140
__blk_mq_complete_request_remote+0xe/0x10
flush_smp_call_function_queue+0x51/0x120
generic_smp_call_function_single_interrupt+0xe/0x20
smp_trace_call_function_single_interrupt+0x22/0x30
smp_call_function_single_interrupt+0x9/0x10
call_function_single_interrupt+0xa7/0xb0
</IRQ>
RIP: 0010:native_safe_halt+0x6/0x10
default_idle+0xe/0x20
arch_cpu_idle+0xa/0x10
default_idle_call+0x1e/0x30
do_idle+0x187/0x200
cpu_startup_entry+0x6e/0x70
rest_init+0xd0/0xe0
start_kernel+0x456/0x477
x86_64_start_reservations+0x24/0x26
x86_64_start_kernel+0xf7/0x11a
secondary_startup_64+0xa5/0xa5
Code: c3 49 81 3f 20 9e 0b b8 41 bc 00 00 00 00 44 0f 45 e2 83 fe 01 0f 87 62 ff ff ff 89 f0 49 8b 44 c7 08 48 85 c0 0f 84 52 ff ff ff <f0> ff 80 98 01 00 00 8b 3d 5a 49 c4 01 45 8b b3 18 0c 00 00 85
RIP: __lock_acquire+0x151/0x12f0 RSP: ffffa01f39e03c50
---[ end trace 6c441db499169b1e ]---
Kernel panic - not syncing: Fatal exception in interrupt
Kernel Offset: 0x36000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
---[ end Kernel panic - not syncing: Fatal exception in interrupt
Fix it by holding a reference to the thread.
[akpm@linux-foundation.org: add comment]
Fixes:
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|
|
Minchan Kim
|
3189c82056 |
zram: do not free pool->size_class
Mike reported kernel goes oops with ltp:zram03 testcase. zram: Added device: zram0 zram0: detected capacity change from 0 to 107374182400 BUG: unable to handle kernel paging request at 0000306d61727a77 IP: zs_map_object+0xb9/0x260 PGD 0 P4D 0 Oops: 0000 [#1] SMP Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: zram(E) xfs(E) libcrc32c(E) btrfs(E) xor(E) raid6_pq(E) loop(E) ebtable_filter(E) ebtables(E) ip6table_filter(E) ip6_tables(E) iptable_filter(E) ip_tables(E) x_tables(E) af_packet(E) br_netfilter(E) bridge(E) stp(E) llc(E) iscsi_ibft(E) iscsi_boot_sysfs(E) nls_iso8859_1(E) nls_cp437(E) vfat(E) fat(E) intel_powerclamp(E) coretemp(E) cdc_ether(E) kvm_intel(E) usbnet(E) mii(E) kvm(E) irqbypass(E) crct10dif_pclmul(E) crc32_pclmul(E) crc32c_intel(E) iTCO_wdt(E) ghash_clmulni_intel(E) bnx2(E) iTCO_vendor_support(E) pcbc(E) ioatdma(E) ipmi_ssif(E) aesni_intel(E) i5500_temp(E) i2c_i801(E) aes_x86_64(E) lpc_ich(E) shpchp(E) mfd_core(E) crypto_simd(E) i7core_edac(E) dca(E) glue_helper(E) cryptd(E) ipmi_si(E) button(E) acpi_cpufreq(E) ipmi_devintf(E) pcspkr(E) ipmi_msghandler(E) nfsd(E) auth_rpcgss(E) nfs_acl(E) lockd(E) grace(E) sunrpc(E) ext4(E) crc16(E) mbcache(E) jbd2(E) sd_mod(E) ata_generic(E) i2c_algo_bit(E) ata_piix(E) drm_kms_helper(E) ahci(E) syscopyarea(E) sysfillrect(E) libahci(E) sysimgblt(E) fb_sys_fops(E) uhci_hcd(E) ehci_pci(E) ttm(E) ehci_hcd(E) libata(E) drm(E) megaraid_sas(E) usbcore(E) sg(E) dm_multipath(E) dm_mod(E) scsi_dh_rdac(E) scsi_dh_emc(E) scsi_dh_alua(E) scsi_mod(E) efivarfs(E) autofs4(E) [last unloaded: zram] CPU: 6 PID: 12356 Comm: swapon Tainted: G E 4.13.0.g87b2c3f-default #194 Hardware name: IBM System x3550 M3 -[7944K3G]-/69Y5698 , BIOS -[D6E150AUS-1.10]- 12/15/2010 task: ffff880158d2c4c0 task.stack: ffffc90001680000 RIP: 0010:zs_map_object+0xb9/0x260 Call Trace: zram_bvec_rw.isra.26+0xe8/0x780 [zram] zram_rw_page+0x6e/0xa0 [zram] bdev_read_page+0x81/0xb0 do_mpage_readpage+0x51a/0x710 mpage_readpages+0x122/0x1a0 blkdev_readpages+0x1d/0x20 __do_page_cache_readahead+0x1b2/0x270 ondemand_readahead+0x180/0x2c0 page_cache_sync_readahead+0x31/0x50 generic_file_read_iter+0x7e7/0xaf0 blkdev_read_iter+0x37/0x40 __vfs_read+0xce/0x140 vfs_read+0x9e/0x150 SyS_read+0x46/0xa0 entry_SYSCALL_64_fastpath+0x1a/0xa5 Code: 81 e6 00 c0 3f 00 81 fe 00 00 16 00 0f 85 9f 01 00 00 0f b7 13 65 ff 05 5e 07 dc 7e 66 c1 ea 02 81 e2 ff 01 00 00 49 8b 54 d4 08 <8b> 4a 48 41 0f af ce 81 e1 ff 0f 00 00 41 89 c9 48 c7 c3 a0 70 RIP: zs_map_object+0xb9/0x260 RSP: ffffc90001683988 CR2: 0000306d61727a77 He bisected the problem is [1]. After commit |
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Jonathan Corbet
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d16977f3a6 |
kthread: fix documentation build warning
The kerneldoc comment for kthread_create() had an incorrect argument name, leading to a warning in the docs build. Correct it, and make one more small step toward a warning-free build. Link: http://lkml.kernel.org/r/20170724135916.7f486c6f@lwn.net Signed-off-by: Jonathan Corbet <corbet@lwn.net> Cc: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Arnd Bergmann
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e7701557bf |
kasan: avoid -Wmaybe-uninitialized warning
gcc-7 produces this warning:
mm/kasan/report.c: In function 'kasan_report':
mm/kasan/report.c:351:3: error: 'info.first_bad_addr' may be used uninitialized in this function [-Werror=maybe-uninitialized]
print_shadow_for_address(info->first_bad_addr);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
mm/kasan/report.c:360:27: note: 'info.first_bad_addr' was declared here
The code seems fine as we only print info.first_bad_addr when there is a
shadow, and we always initialize it in that case, but this is relatively
hard for gcc to figure out after the latest rework.
Adding an intialization to the most likely value together with the other
struct members shuts up that warning.
Fixes: b235b9808664 ("kasan: unify report headers")
Link: https://patchwork.kernel.org/patch/9641417/
Link: http://lkml.kernel.org/r/20170725152739.4176967-1-arnd@arndb.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Suggested-by: Alexander Potapenko <glider@google.com>
Suggested-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Mike Rapoport
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b228237193 |
userfaultfd: non-cooperative: notify about unmap of destination during mremap
When mremap is called with MREMAP_FIXED it unmaps memory at the
destination address without notifying userfaultfd monitor.
If the destination were registered with userfaultfd, the monitor has no
way to distinguish between the old and new ranges and to properly relate
the page faults that would occur in the destination region.
Fixes:
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Mel Gorman
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3ea277194d |
mm, mprotect: flush TLB if potentially racing with a parallel reclaim leaving stale TLB entries
Nadav Amit identified a theoritical race between page reclaim and
mprotect due to TLB flushes being batched outside of the PTL being held.
He described the race as follows:
CPU0 CPU1
---- ----
user accesses memory using RW PTE
[PTE now cached in TLB]
try_to_unmap_one()
==> ptep_get_and_clear()
==> set_tlb_ubc_flush_pending()
mprotect(addr, PROT_READ)
==> change_pte_range()
==> [ PTE non-present - no flush ]
user writes using cached RW PTE
...
try_to_unmap_flush()
The same type of race exists for reads when protecting for PROT_NONE and
also exists for operations that can leave an old TLB entry behind such
as munmap, mremap and madvise.
For some operations like mprotect, it's not necessarily a data integrity
issue but it is a correctness issue as there is a window where an
mprotect that limits access still allows access. For munmap, it's
potentially a data integrity issue although the race is massive as an
munmap, mmap and return to userspace must all complete between the
window when reclaim drops the PTL and flushes the TLB. However, it's
theoritically possible so handle this issue by flushing the mm if
reclaim is potentially currently batching TLB flushes.
Other instances where a flush is required for a present pte should be ok
as either the page lock is held preventing parallel reclaim or a page
reference count is elevated preventing a parallel free leading to
corruption. In the case of page_mkclean there isn't an obvious path
that userspace could take advantage of without using the operations that
are guarded by this patch. Other users such as gup as a race with
reclaim looks just at PTEs. huge page variants should be ok as they
don't race with reclaim. mincore only looks at PTEs. userfault also
should be ok as if a parallel reclaim takes place, it will either fault
the page back in or read some of the data before the flush occurs
triggering a fault.
Note that a variant of this patch was acked by Andy Lutomirski but this
was for the x86 parts on top of his PCID work which didn't make the 4.13
merge window as expected. His ack is dropped from this version and
there will be a follow-on patch on top of PCID that will include his
ack.
[akpm@linux-foundation.org: tweak comments]
[akpm@linux-foundation.org: fix spello]
Link: http://lkml.kernel.org/r/20170717155523.emckq2esjro6hf3z@suse.de
Reported-by: Nadav Amit <nadav.amit@gmail.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: <stable@vger.kernel.org> [v4.4+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Kefeng Wang
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27e37d84e5 |
pid: kill pidhash_size in pidhash_init()
After commit
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Daniel Jordan
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2be7cfed99 |
mm/hugetlb.c: __get_user_pages ignores certain follow_hugetlb_page errors
Commit |