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5a5525b048
874079 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Heiko Carstens
|
5a5525b048 |
s390/vdso: fix getcpu
getcpu reads the required values for cpu and node with two instructions. This might lead to an inconsistent result if user space gets preempted and migrated to a different CPU between the two instructions. Fix this by using just a single instruction to read both values at once. This is currently rather a theoretical bug, since there is no real NUMA support available (except for NUMA emulation). Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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Heiko Carstens
|
a2308c11ec |
s390/smp,vdso: fix ASCE handling
When a secondary CPU is brought up it must initialize its control
registers. CPU A which triggers that a secondary CPU B is brought up
stores its control register contents into the lowcore of new CPU B,
which then loads these values on startup.
This is problematic in various ways: the control register which
contains the home space ASCE will correctly contain the kernel ASCE;
however control registers for primary and secondary ASCEs are
initialized with whatever values were present in CPU A.
Typically:
- the primary ASCE will contain the user process ASCE of the process
that triggered onlining of CPU B.
- the secondary ASCE will contain the percpu VDSO ASCE of CPU A.
Due to lazy ASCE handling we may also end up with other combinations.
When then CPU B switches to a different process (!= idle) it will
fixup the primary ASCE. However the problem is that the (wrong) ASCE
from CPU A was loaded into control register 1: as soon as an ASCE is
attached (aka loaded) a CPU is free to generate TLB entries using that
address space.
Even though it is very unlikey that CPU B will actually generate such
entries, this could result in TLB entries of the address space of the
process that ran on CPU A. These entries shouldn't exist at all and
could cause problems later on.
Furthermore the secondary ASCE of CPU B will not be updated correctly.
This means that processes may see wrong results or even crash if they
access VDSO data on CPU B. The correct VDSO ASCE will eventually be
loaded on return to user space as soon as the kernel executed a call
to strnlen_user or an atomic futex operation on CPU B.
Fix both issues by intializing the to be loaded control register
contents with the correct ASCEs and also enforce (re-)loading of the
ASCEs upon first context switch and return to user space.
Fixes:
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Harald Freudenberger
|
6733775a92 |
s390/zcrypt: handle new reply code FILTERED_BY_HYPERVISOR
This patch introduces support for a new architectured reply code 0x8B indicating that a hypervisor layer (if any) has rejected an ap message. Linux may run as a guest on top of a hypervisor like zVM or KVM. So the crypto hardware seen by the ap bus may be restricted by the hypervisor for example only a subset like only clear key crypto requests may be supported. Other requests will be filtered out - rejected by the hypervisor. The new reply code 0x8B will appear in such cases and needs to get recognized by the ap bus and zcrypt device driver zoo. Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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Ilya Leoshkevich
|
914d52e464 |
s390: implement perf_arch_fetch_caller_regs
On s390 bpf_get_stack_raw_tp() returns 0 entries for both kernel and user stacks. While there is no practical unwinding solution for userspace on s390 at this moment, there certainly is a kernel unwinder. However, it is not properly integrated with BPF. In order to start unwinding, bpf_get_stack_raw_tp() obtains the current kernel register values using perf_fetch_caller_regs(), which is not implemented for s390. The actual unwinding then happens by passing those registers to perf_callchain_kernel(). Implement perf_arch_fetch_caller_regs() for s390, where __builtin_frame_address(0) points to back_chain. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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Linus Torvalds
|
ea1f56fa16 |
s390 updates for the 5.5 merge window
- Adjust PMU device drivers registration to avoid WARN_ON and few other perf improvements. - Enhance tracing in vfio-ccw. - Few stack unwinder fixes and improvements, convert get_wchan custom stack unwinding to generic api usage. - Fixes for mm helpers issues uncovered with tests validating architecture page table helpers. - Fix noexec bit handling when hardware doesn't support it. - Fix memleak and unsigned value compared with zero bugs in crypto code. Minor code simplification. - Fix crash during kdump with kasan enabled kernel. - Switch bug and alternatives from asm to asm_inline to improve inlining decisions. - Use 'depends on cc-option' for MARCH and TUNE options in Kconfig, add z13s and z14 ZR1 to TUNE descriptions. - Minor head64.S simplification. - Fix physical to logical CPU map for SMT. - Several cleanups in qdio code. - Other minor cleanups and fixes all over the code. -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEE3QHqV+H2a8xAv27vjYWKoQLXFBgFAl3ahGYACgkQjYWKoQLX FBguwAgAig+FNos8zkd7Sr2wg4DPL2IlYERVP40fOLXfGuVUOnMLg8OTO6yDWDpH 5+cKAQS1wWgyvlfjWRUJ6anXLBAsgKRD1nyFIZTpn/wArGk/duCbnl/VFriDgrST 8KTQDJpZ9w9nXtQ7lA2QWaw5U2WG8I2T2JuQJCdLXze7RXi0bDVe8e6131NMaJ42 LLxqOqm8d8XDnd8oDVP04LT5IfhuI2cILoGBP/GyI2fqQk9Ems6M2gxuISq1COmy WORDLfwWyCLeF7gWKKjxf8Vo1HYcyoFvdXnxWiHb0TDZesQZJr/LLELTP03fbCW9 U4jbXncnnPA7kT4tlC95jT5M69yK5w== =+FxG -----END PGP SIGNATURE----- Merge tag 's390-5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Vasily Gorbik: - Adjust PMU device drivers registration to avoid WARN_ON and few other perf improvements. - Enhance tracing in vfio-ccw. - Few stack unwinder fixes and improvements, convert get_wchan custom stack unwinding to generic api usage. - Fixes for mm helpers issues uncovered with tests validating architecture page table helpers. - Fix noexec bit handling when hardware doesn't support it. - Fix memleak and unsigned value compared with zero bugs in crypto code. Minor code simplification. - Fix crash during kdump with kasan enabled kernel. - Switch bug and alternatives from asm to asm_inline to improve inlining decisions. - Use 'depends on cc-option' for MARCH and TUNE options in Kconfig, add z13s and z14 ZR1 to TUNE descriptions. - Minor head64.S simplification. - Fix physical to logical CPU map for SMT. - Several cleanups in qdio code. - Other minor cleanups and fixes all over the code. * tag 's390-5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (41 commits) s390/cpumf: Adjust registration of s390 PMU device drivers s390/smp: fix physical to logical CPU map for SMT s390/early: move access registers setup in C code s390/head64: remove unnecessary vdso_per_cpu_data setup s390/early: move control registers setup in C code s390/kasan: support memcpy_real with TRACE_IRQFLAGS s390/crypto: Fix unsigned variable compared with zero s390/pkey: use memdup_user() to simplify code s390/pkey: fix memory leak within _copy_apqns_from_user() s390/disassembler: don't hide instruction addresses s390/cpum_sf: Assign error value to err variable s390/cpum_sf: Replace function name in debug statements s390/cpum_sf: Use consistant debug print format for sampling s390/unwind: drop unnecessary code around calling ftrace_graph_ret_addr() s390: add error handling to perf_callchain_kernel s390: always inline current_stack_pointer() s390/mm: add mm_pxd_folded() checks to pxd_free() s390/mm: properly clear _PAGE_NOEXEC bit when it is not supported s390/mm: simplify page table helpers for large entries s390/mm: make pmd/pud_bad() report large entries as bad ... |
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Linus Torvalds
|
4ba380f616 |
arm64 updates for 5.5:
- On ARMv8 CPUs without hardware updates of the access flag, avoid
failing cow_user_page() on PFN mappings if the pte is old. The patches
introduce an arch_faults_on_old_pte() macro, defined as false on x86.
When true, cow_user_page() makes the pte young before attempting
__copy_from_user_inatomic().
- Covert the synchronous exception handling paths in
arch/arm64/kernel/entry.S to C.
- FTRACE_WITH_REGS support for arm64.
- ZONE_DMA re-introduced on arm64 to support Raspberry Pi 4
- Several kselftest cases specific to arm64, together with a MAINTAINERS
update for these files (moved to the ARM64 PORT entry).
- Workaround for a Neoverse-N1 erratum where the CPU may fetch stale
instructions under certain conditions.
- Workaround for Cortex-A57 and A72 errata where the CPU may
speculatively execute an AT instruction and associate a VMID with the
wrong guest page tables (corrupting the TLB).
- Perf updates for arm64: additional PMU topologies on HiSilicon
platforms, support for CCN-512 interconnect, AXI ID filtering in the
IMX8 DDR PMU, support for the CCPI2 uncore PMU in ThunderX2.
- GICv3 optimisation to avoid a heavy barrier when accessing the
ICC_PMR_EL1 register.
- ELF HWCAP documentation updates and clean-up.
- SMC calling convention conduit code clean-up.
- KASLR diagnostics printed during boot
- NVIDIA Carmel CPU added to the KPTI whitelist
- Some arm64 mm clean-ups: use generic free_initrd_mem(), remove stale
macro, simplify calculation in __create_pgd_mapping(), typos.
- Kconfig clean-ups: CMDLINE_FORCE to depend on CMDLINE, choice for
endinanness to help with allmodconfig.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
"Apart from the arm64-specific bits (core arch and perf, new arm64
selftests), it touches the generic cow_user_page() (reviewed by
Kirill) together with a macro for x86 to preserve the existing
behaviour on this architecture.
Summary:
- On ARMv8 CPUs without hardware updates of the access flag, avoid
failing cow_user_page() on PFN mappings if the pte is old. The
patches introduce an arch_faults_on_old_pte() macro, defined as
false on x86. When true, cow_user_page() makes the pte young before
attempting __copy_from_user_inatomic().
- Covert the synchronous exception handling paths in
arch/arm64/kernel/entry.S to C.
- FTRACE_WITH_REGS support for arm64.
- ZONE_DMA re-introduced on arm64 to support Raspberry Pi 4
- Several kselftest cases specific to arm64, together with a
MAINTAINERS update for these files (moved to the ARM64 PORT entry).
- Workaround for a Neoverse-N1 erratum where the CPU may fetch stale
instructions under certain conditions.
- Workaround for Cortex-A57 and A72 errata where the CPU may
speculatively execute an AT instruction and associate a VMID with
the wrong guest page tables (corrupting the TLB).
- Perf updates for arm64: additional PMU topologies on HiSilicon
platforms, support for CCN-512 interconnect, AXI ID filtering in
the IMX8 DDR PMU, support for the CCPI2 uncore PMU in ThunderX2.
- GICv3 optimisation to avoid a heavy barrier when accessing the
ICC_PMR_EL1 register.
- ELF HWCAP documentation updates and clean-up.
- SMC calling convention conduit code clean-up.
- KASLR diagnostics printed during boot
- NVIDIA Carmel CPU added to the KPTI whitelist
- Some arm64 mm clean-ups: use generic free_initrd_mem(), remove
stale macro, simplify calculation in __create_pgd_mapping(), typos.
- Kconfig clean-ups: CMDLINE_FORCE to depend on CMDLINE, choice for
endinanness to help with allmodconfig"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (93 commits)
arm64: Kconfig: add a choice for endianness
kselftest: arm64: fix spelling mistake "contiguos" -> "contiguous"
arm64: Kconfig: make CMDLINE_FORCE depend on CMDLINE
MAINTAINERS: Add arm64 selftests to the ARM64 PORT entry
arm64: kaslr: Check command line before looking for a seed
arm64: kaslr: Announce KASLR status on boot
kselftest: arm64: fake_sigreturn_misaligned_sp
kselftest: arm64: fake_sigreturn_bad_size
kselftest: arm64: fake_sigreturn_duplicated_fpsimd
kselftest: arm64: fake_sigreturn_missing_fpsimd
kselftest: arm64: fake_sigreturn_bad_size_for_magic0
kselftest: arm64: fake_sigreturn_bad_magic
kselftest: arm64: add helper get_current_context
kselftest: arm64: extend test_init functionalities
kselftest: arm64: mangle_pstate_invalid_mode_el[123][ht]
kselftest: arm64: mangle_pstate_invalid_daif_bits
kselftest: arm64: mangle_pstate_invalid_compat_toggle and common utils
kselftest: arm64: extend toplevel skeleton Makefile
drivers/perf: hisi: update the sccl_id/ccl_id for certain HiSilicon platform
arm64: mm: reserve CMA and crashkernel in ZONE_DMA32
...
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Linus Torvalds
|
e25645b181 |
linux-kselftest-5.5-rc1-kunit
This kselftest update for Linux 5.5-rc1 adds KUnit, a lightweight unit testing and mocking framework for the Linux kernel from Brendan Higgins. KUnit is not an end-to-end testing framework. It is currently supported on UML and sub-systems can write unit tests and run them in UML env. KUnit documentation is included in this update. In addition, this Kunit update adds 3 new kunit tests: - kunit test for proc sysctl from Iurii Zaikin - kunit test for the 'list' doubly linked list from David Gow - ext4 kunit test for decoding extended timestamps from Iurii Zaikin In the future KUnit will be linked to Kselftest framework to provide a way to trigger KUnit tests from user-space. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAl3YfBQACgkQCwJExA0N QxzTjxAAiFhaDMhlpLhn1DpIUNvfKrIgDjJgajQAyMMs6TJK3OrD6J4WbpVD7wGo aqF9l6o64sY18JAo3s00j6AcAmVwNH7qzEEuzIQPjJvQ8C4sCWL3esEP4JHgFb2F snlSn5KjSsdC1D9N7uQIhgW76xPSyDrTwWQpglvmB9TwmJVBIl9zhu+unp73ufFJ N+ieDg8A6W/wDGYSq5JBSkJbuI0gL+daNwUYzxEEZIskndhpovOc82WAldECRm6x TfI0u39zTbrEO0DHgmYpyGbTN8TB2mXjH5HMjwg+KbHfKVTKKGvTK7XFs8mWGQpO n2meypZuwuIsRPOPcAVs+Gt2dc0jFODJVIV1EzA0WSv6TEdPqyhM/d13tHdCqjm9 ic5wQ/hQQNEB1Dvg5ereXBaGGaoqP95y61ZpCS9vCXFXH+28E/B63Ebfs2IBIuqS Jv2KcoxabyZq3uGdjnn+mD7IM8rkvscRP4Ba31nXRgJIYDHAzqe7APN7y3on4NGx 1q7lBlA3XZZ8qgo0zpLST20ck/qaL3tk4k8E1f8emh6CuyrCWtazgrWkMIlyEX0O 8nre3uEAF9xUzB4+gZK4YmelN9Bld3Uv7Ippt1zTCiQ0FkEABQIMUrTZygy7Wfg6 6qi4dk8frWW4Kt63gOXsMxr9FWTqDk+Ys4GPAVDVm1d0dzERn8k= =0zEe -----END PGP SIGNATURE----- Merge tag 'linux-kselftest-5.5-rc1-kunit' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest KUnit support gtom Shuah Khan: "This adds KUnit, a lightweight unit testing and mocking framework for the Linux kernel from Brendan Higgins. KUnit is not an end-to-end testing framework. It is currently supported on UML and sub-systems can write unit tests and run them in UML env. KUnit documentation is included in this update. In addition, this Kunit update adds 3 new kunit tests: - proc sysctl test from Iurii Zaikin - the 'list' doubly linked list test from David Gow - ext4 tests for decoding extended timestamps from Iurii Zaikin In the future KUnit will be linked to Kselftest framework to provide a way to trigger KUnit tests from user-space" * tag 'linux-kselftest-5.5-rc1-kunit' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (23 commits) lib/list-test: add a test for the 'list' doubly linked list ext4: add kunit test for decoding extended timestamps Documentation: kunit: Fix verification command kunit: Fix '--build_dir' option kunit: fix failure to build without printk MAINTAINERS: add proc sysctl KUnit test to PROC SYSCTL section kernel/sysctl-test: Add null pointer test for sysctl.c:proc_dointvec() MAINTAINERS: add entry for KUnit the unit testing framework Documentation: kunit: add documentation for KUnit kunit: defconfig: add defconfigs for building KUnit tests kunit: tool: add Python wrappers for running KUnit tests kunit: test: add tests for KUnit managed resources kunit: test: add the concept of assertions kunit: test: add tests for kunit test abort kunit: test: add support for test abort objtool: add kunit_try_catch_throw to the noreturn list kunit: test: add initial tests lib: enable building KUnit in lib/ kunit: test: add the concept of expectations kunit: test: add assertion printing library ... |
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Linus Torvalds
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db7d275415 |
linux-kselftest-5.5-rc1-fixes
This kselftest fixes update for Linux 5.5-rc1 consists of several fixes to tests and framework. Masami Hiramatsu fixed several tests to build and run correctly on arm and other 32bit architectures. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAl3YLAsACgkQCwJExA0N QxySoxAAwTJgNDhyxWGLFzlReuILBitWuTbEg1KzlOMjKWHnDBHhO9GYqxScKt5Y fgjjwukvQyai0PGMKd4U+AXtxeSB+Wr9kID7AXuTeDyBOK1iu9Nr++vSkAByJla4 qSVYf+Ja3Zu8kWs3S9rC1zs8dvMutA4FrjW7ig77quFxfSncwqIsTufo53gpBo5e tJ/VakouWiMV7oyDDPzqrs7Uz01CMmEsJXAkyHzb/nc+6NjJUpewRhZGkYXi89Le 2nBvEUUpdLMphds+KxO51+e+5pnU0ZD4PtjGcQ4/SABWWrCvNKJ9Tn398AdcndYX NGQe9eohcSB47YKA+sNagi+B4UBfgz6GtYEsdAy8oNxxEGTg8apKygvIlfjmp8in EMcFF/r6Wwxufx4F9uRFLn48t4d/SAYqCne/RaSwb+IkAe+wyFKeTNP7bwqAwakE Uvfpjoya0n5IXBKV9v6MrJJZKwKw6J9mu51wahmx2MQveW8p4nqnzy3xZ8AWOqb/ BezRWOgs85Yank8ovXfbAtxcdqKfw3BpDDO379OM7syvTMWNbLcfhpZ9wbyxB108 lcPsjrvu2SNzMs21vsyoDkTE/CPl0byr2v4SWOfUq1YTbsxVIveP4qcy9B12C3aR m7vRGLG2HwMrlVZ1mvXY2Tz0Jjhx7S+0eyYYzEBMHGT4zRqxjwU= =KGOl -----END PGP SIGNATURE----- Merge tag 'linux-kselftest-5.5-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest fixes from Shuah Khan: "This consists of several fixes to tests and framework. Masami Hiramatsu fixed several tests to build and run correctly on arm and other 32bit architectures" * tag 'linux-kselftest-5.5-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests: sync: Fix cast warnings on arm selftests: net: Fix printf format warnings on arm selftests: net: Use size_t and ssize_t for counting file size selftests: vm: Build/Run 64bit tests only on 64bit arch selftests: proc: Make va_max 1MB kselftest: Fix NULL INSTALL_PATH for TARGETS runlist selftests: Move kselftest_module.sh into kselftest/ selftests: gen_kselftest_tar.sh: Do not clobber kselftest/ selftests: breakpoints: Fix a typo of function name selftests: Fix O= and KBUILD_OUTPUT handling for relative paths |
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Linus Torvalds
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1c1ff4836f |
fsverity updates for 5.5
Expose the fs-verity bit through statx(). -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQSacvsUNc7UX4ntmEPzXCl4vpKOKwUCXdtWqhQcZWJpZ2dlcnNA Z29vZ2xlLmNvbQAKCRDzXCl4vpKOK+C9AQCCf8C2KP6DynoGQb9KRYYreJk8js8G IgtlhazJ3j1RJAD/VijFbdwbxGCmiR1Y6BhKq5eaCYD1El68wSwkKuNO3ww= =7WpU -----END PGP SIGNATURE----- Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt Pull fsverity updates from Eric Biggers: "Expose the fs-verity bit through statx()" * tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt: docs: fs-verity: mention statx() support f2fs: support STATX_ATTR_VERITY ext4: support STATX_ATTR_VERITY statx: define STATX_ATTR_VERITY docs: fs-verity: document first supported kernel version |
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Linus Torvalds
|
ea4b71bc0b |
fscrypt updates for 5.5
- Add the IV_INO_LBLK_64 encryption policy flag which modifies the encryption to be optimized for UFS inline encryption hardware. - For AES-128-CBC, use the crypto API's implementation of ESSIV (which was added in 5.4) rather than doing ESSIV manually. - A few other cleanups. -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQSacvsUNc7UX4ntmEPzXCl4vpKOKwUCXdtVMxQcZWJpZ2dlcnNA Z29vZ2xlLmNvbQAKCRDzXCl4vpKOK8MVAP44iRzj8ZXu62BhqNOYYcF60s/58QfZ Jo1VdmvO/8MNrAD+P/jW5sqzcB5BLdNzS7pLKGIzsC55uMyp/79xyKK8wQc= =XKWV -----END PGP SIGNATURE----- Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt Pull fscrypt updates from Eric Biggers: - Add the IV_INO_LBLK_64 encryption policy flag which modifies the encryption to be optimized for UFS inline encryption hardware. - For AES-128-CBC, use the crypto API's implementation of ESSIV (which was added in 5.4) rather than doing ESSIV manually. - A few other cleanups. * tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt: f2fs: add support for IV_INO_LBLK_64 encryption policies ext4: add support for IV_INO_LBLK_64 encryption policies fscrypt: add support for IV_INO_LBLK_64 policies fscrypt: avoid data race on fscrypt_mode::logged_impl_name docs: ioctl-number: document fscrypt ioctl numbers fscrypt: zeroize fscrypt_info before freeing fscrypt: remove struct fscrypt_ctx fscrypt: invoke crypto API for ESSIV handling |
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Linus Torvalds
|
ae36607b66 |
affs-for-5.5-tag
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||
|
Linus Torvalds
|
97d0bf96a0 |
for-5.5-tag
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Merge tag 'for-5.5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"User visible changes:
- new block group profiles: RAID1 with 3- and 4- copies
- RAID1 in btrfs has always 2 copies, now add support for 3 and 4
- this is an incompat feature (named RAID1C34)
- recommended use of RAID1C3 is replacement of RAID6 profile on
metadata, this brings a more reliable resiliency against 2
device loss/damage
- support for new checksums
- per-filesystem, set at mkfs time
- fast hash (crc32c successor): xxhash, 64bit digest
- strong hashes (both 256bit): sha256 (slower, FIPS), blake2b
(faster)
- the blake2b module goes via the crypto tree, btrfs.ko has a
soft dependency
- speed up lseek, don't take inode locks unnecessarily, this can
speed up parallel SEEK_CUR/SEEK_SET/SEEK_END by 80%
- send:
- allow clone operations within the same file
- limit maximum number of sent clone references to avoid slow
backref walking
- error message improvements: device scan prints process name and PID
Core changes:
- cleanups
- remove unique workqueue helpers, used to provide a way to avoid
deadlocks in the workqueue code, now done in a simpler way
- remove lots of indirect function calls in compression code
- extent IO tree code moved out of extent_io.c
- cleanup backup superblock handling at mount time
- transaction life cycle documentation and cleanups
- locking code cleanups, annotations and documentation
- add more cold, const, pure function attributes
- removal of unused or redundant struct members or variables
- new tree-checker sanity tests
- try to detect missing INODE_ITEM, cross-reference checks of
DIR_ITEM, DIR_INDEX, INODE_REF, and XATTR_* items
- remove own bio scheduling code (used to avoid checksum submissions
being stuck behind other IO), replaced by cgroup controller-based
code to allow better control and avoid priority inversions in cases
where the custom and cgroup scheduling disagreed
Fixes:
- avoid getting stuck during cyclic writebacks
- fix trimming of ranges crossing block group boundaries
- fix rename exchange on subvolumes, all involved subvolumes need to
be recorded in the transaction"
* tag 'for-5.5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (137 commits)
btrfs: drop bdev argument from submit_extent_page
btrfs: remove extent_map::bdev
btrfs: drop bio_set_dev where not needed
btrfs: get bdev directly from fs_devices in submit_extent_page
btrfs: record all roots for rename exchange on a subvol
Btrfs: fix block group remaining RO forever after error during device replace
btrfs: scrub: Don't check free space before marking a block group RO
btrfs: change btrfs_fs_devices::rotating to bool
btrfs: change btrfs_fs_devices::seeding to bool
btrfs: rename btrfs_block_group_cache
btrfs: block-group: Reuse the item key from caller of read_one_block_group()
btrfs: block-group: Refactor btrfs_read_block_groups()
btrfs: document extent buffer locking
btrfs: access eb::blocking_writers according to ACCESS_ONCE policies
btrfs: set blocking_writers directly, no increment or decrement
btrfs: merge blocking_writers branches in btrfs_tree_read_lock
btrfs: drop incompat bit for raid1c34 after last block group is gone
btrfs: add incompat for raid1 with 3, 4 copies
btrfs: add support for 4-copy replication (raid1c4)
btrfs: add support for 3-copy replication (raid1c3)
...
|
||
|
Linus Torvalds
|
1b88176b9c |
MTD core:
* Dropped inactive maintainers, updated the repositories and added the IRC
channel.
* Debugfs functions improvements.
* Initialized of more structure parameters.
* Misc fixes reported by robots.
MTD devices:
* spear_smi: Fixed Write Burst mode
* New Intel IXP4xx flash probing hook.
Raw NAND core:
* Useless extra checks dropped.
* Updated the detection of the bad block markers position
Raw NAND controller drivers:
* Cadence : New driver
* Brcmnand: Support for flash-dma v0 + fixes
* Denali : Support for the legacy controller/chip DT representation
dropped
* Superfluous dev_err() calls removed
SPI NOR core changes:
* introduce 'struct spi_nor_controller_ops',
* clean the Register Operations methods,
* use dev_dbg insted of dev_err for low level info,
* fix retlen handling in sst_write(),
* fix silent truncations in spi_nor_read and spi_nor_read_raw(),
* fix the clearing of QE bit on lock()/unlock(),
* rework the disabling of the block write protection,
* rework the Quad Enable methods,
* make sure nor->spimem and nor->controller_ops are mutually exclusive,
* set default Quad Enable method for ISSI flashes,
* add support for few flashes.
SPI NOR controller drivers changes:
* intel-spi:
- support chips without software sequencer,
- add support for Intel Cannon Lake and Intel Comet Lake-H flashes.
CFI core changes:
* Code cleanups related useless initializers and coding style issues
* Fix for a possible double free problem in cfi_cmdset_0002
* Improved error reporting and handling in cfi_cmdset_0002 core for HyperFlash
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Merge tag 'mtd/for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull MTD updates from Miquel Raynal:
"MTD core:
- drop inactive maintainers, update the repositories and add IRC
channel
- debugfs functions improvements
- initialize more structure parameters
- misc fixes reported by robots
MTD devices:
- spear_smi: Fixed Write Burst mode
- new Intel IXP4xx flash probing hook
Raw NAND core:
- useless extra checks dropped
- update the detection of the bad block markers position
Raw NAND controller drivers:
- Cadence: new driver
- Brcmnand: support for flash-dma v0 + fixes
- Denali: drop support for the legacy controller/chip DT representation
- superfluous dev_err() calls removed
SPI NOR core changes:
- introduce 'struct spi_nor_controller_ops'
- clean the Register Operations methods
- use dev_dbg insted of dev_err for low level info
- fix retlen handling in sst_write()
- fix silent truncations in spi_nor_read and spi_nor_read_raw()
- fix the clearing of QE bit on lock()/unlock()
- rework the disabling of the block write protection
- rework the Quad Enable methods
- make sure nor->spimem and nor->controller_ops are mutually exclusive
- set default Quad Enable method for ISSI flashes
- add support for few flashes
SPI NOR controller drivers changes:
- intel-spi:
- support chips without software sequencer
- add support for Intel Cannon Lake and Intel Comet Lake-H flashes
CFI core changes:
- code cleanups related useless initializers and coding style issues
- fix for a possible double free problem in cfi_cmdset_0002
- improved HyperFlash error reporting and handling in cfi_cmdset_0002 core"
* tag 'mtd/for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (73 commits)
mtd: devices: fix mchp23k256 read and write
mtd: no need to check return value of debugfs_create functions
mtd: spi-nor: Set default Quad Enable method for ISSI flashes
mtd: spi-nor: Add support for is25wp256
mtd: spi-nor: Add support for w25q256jw
mtd: spi-nor: Move condition to avoid a NULL check
mtd: spi-nor: Make sure nor->spimem and nor->controller_ops are mutually exclusive
mtd: spi-nor: Rename Quad Enable methods
mtd: spi-nor: Merge spansion Quad Enable methods
mtd: spi-nor: Rename CR_QUAD_EN_SPAN to SR2_QUAD_EN_BIT1
mtd: spi-nor: Extend the SR Read Back test
mtd: spi-nor: Rework the disabling of block write protection
mtd: spi-nor: Fix clearing of QE bit on lock()/unlock()
mtd: cfi_cmdset_0002: fix delayed error detection on HyperFlash
mtd: cfi_cmdset_0002: only check errors when ready in cfi_check_err_status()
mtd: cfi_cmdset_0002: don't free cfi->cfiq in error path of cfi_amdstd_setup()
mtd: cfi_cmdset_*: kill useless 'ret' variable initializers
mtd: cfi_util: use DIV_ROUND_UP() in cfi_udelay()
mtd: spi-nor: Print debug message when the read back test fails
mtd: spi-nor: Check all the bits written, not just the BP ones
...
|
||
|
Linus Torvalds
|
eeee2827ae |
- Fix DM core to disallow stacking request-based DM on partitions.
- Fix DM raid target to properly resync raidset even if bitmap needed additional pages. - Fix DM crypt performance regression due to use of WQ_HIGHPRI for the IO and crypt workqueues. - Fix DM integrity metadata layout that was aligned on 128K boundary rather than the intended 4K boundary (removes 124K of wasted space for each metadata block). - Improve the DM thin, cache and clone targets to use spin_lock_irq rather than spin_lock_irqsave where possible. - Fix DM thin single thread performance that was lost due to needless workqueue wakeups. - Fix DM zoned target performance that was lost due to excessive backing device checks. - Add ability to trigger write failure with the DM dust test target. - Fix whitespace indentation in drivers/md/Kconfig. - Various smalls fixes and cleanups (e.g. use struct_size, fix uninitialized variable, variable renames, etc). -----BEGIN PGP SIGNATURE----- iQFHBAABCAAxFiEEJfWUX4UqZ4x1O2wixSPxCi2dA1oFAl3X/uUTHHNuaXR6ZXJA cmVkaGF0LmNvbQAKCRDFI/EKLZ0DWv4PCACAIapkVx6A+MCQMT1lFJ9Ad5RRE0jb xKjvte0KKozIsrabkLeRS/fOi6IVJwfdyF+rI5Q5BNxh6IzLrxvKvtcSatYyxY+O hd/ijcgntE7UBXU99nesBG9Vax66EXeAkXUU+UJWkijrIPikxAc62zkpl4KwK4c2 sVHRu7g7avYKSeN/CUl18WIPXKVGmKbKTUtWNd/R46V37y27EwNP2NXUGwQcrCHR G5TJBJIl3UL2nB14LbvbZ8+0nwLjiFgc6SJK72bTJwLOVQFA+0KrqxIejqtRxlGR fsEq9zfbm+9VdsQMESGYKAI89diq26uCLYBmBQe7OtJc7HBdBN0/Wkbe =CiR7 -----END PGP SIGNATURE----- Merge tag 'for-5.5/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper updates from Mike Snitzer: - Fix DM core to disallow stacking request-based DM on partitions. - Fix DM raid target to properly resync raidset even if bitmap needed additional pages. - Fix DM crypt performance regression due to use of WQ_HIGHPRI for the IO and crypt workqueues. - Fix DM integrity metadata layout that was aligned on 128K boundary rather than the intended 4K boundary (removes 124K of wasted space for each metadata block). - Improve the DM thin, cache and clone targets to use spin_lock_irq rather than spin_lock_irqsave where possible. - Fix DM thin single thread performance that was lost due to needless workqueue wakeups. - Fix DM zoned target performance that was lost due to excessive backing device checks. - Add ability to trigger write failure with the DM dust test target. - Fix whitespace indentation in drivers/md/Kconfig. - Various smalls fixes and cleanups (e.g. use struct_size, fix uninitialized variable, variable renames, etc). * tag 'for-5.5/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (22 commits) Revert "dm crypt: use WQ_HIGHPRI for the IO and crypt workqueues" dm: Fix Kconfig indentation dm thin: wakeup worker only when deferred bios exist dm integrity: fix excessive alignment of metadata runs dm raid: Remove unnecessary negation of a shift in raid10_format_to_md_layout dm zoned: reduce overhead of backing device checks dm dust: add limited write failure mode dm dust: change ret to r in dust_map_read and dust_map dm dust: change result vars to r dm cache: replace spin_lock_irqsave with spin_lock_irq dm bio prison: replace spin_lock_irqsave with spin_lock_irq dm thin: replace spin_lock_irqsave with spin_lock_irq dm clone: add bucket_lock_irq/bucket_unlock_irq helpers dm clone: replace spin_lock_irqsave with spin_lock_irq dm writecache: handle REQ_FUA dm writecache: fix uninitialized variable warning dm stripe: use struct_size() in kmalloc() dm raid: streamline rs_get_progress() and its raid_status() caller side dm raid: simplify rs_setup_recovery call chain dm raid: to ensure resynchronization, perform raid set grow in preresume ... |
||
|
Linus Torvalds
|
7e5192b93c |
for-5.5/disk-revalidate-20191122
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||
|
Linus Torvalds
|
464a47f45d |
for-5.5/zoned-20191122
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||
|
Linus Torvalds
|
323264eefb |
for-5.5/drivers-post-20191122
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Merge tag 'for-5.5/drivers-post-20191122' of git://git.kernel.dk/linux-block
Pull additional block driver updates from Jens Axboe:
"Here's another block driver update, done to avoid conflicts with the
zoned changes coming next.
This contains:
- Prepare SCSI sd for zone open/close/finish support
- Small NVMe pull request
- hwmon support (Akinobu)
- add new co-maintainer (Christoph)
- work-around for a discard issue on non-conformant drives
(Eduard)
- Small nbd leak fix"
* tag 'for-5.5/drivers-post-20191122' of git://git.kernel.dk/linux-block:
nbd: prevent memory leak
nvme: hwmon: add quirk to avoid changing temperature threshold
nvme: hwmon: provide temperature min and max values for each sensor
nvmet: add another maintainer
nvme: Discard workaround for non-conformant devices
nvme: Add hardware monitoring support
scsi: sd_zbc: add zone open, close, and finish support
|
||
|
Linus Torvalds
|
2d53943090 |
for-5.5/drivers-20191121
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||
|
Linus Torvalds
|
ff6814b078 |
for-5.5/block-20191121
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Merge tag 'for-5.5/block-20191121' of git://git.kernel.dk/linux-block
Pull core block updates from Jens Axboe:
"Due to more granular branches, this one is small and will be followed
with other core branches that add specific features. I meant to just
have a core and drivers branch, but external dependencies we ended up
adding a few more that are also core.
The changes are:
- Fixes and improvements for the zoned device support (Ajay, Damien)
- sed-opal table writing and datastore UID (Revanth)
- blk-cgroup (and bfq) blk-cgroup stat fixes (Tejun)
- Improvements to the block stats tracking (Pavel)
- Fix for overruning sysfs buffer for large number of CPUs (Ming)
- Optimization for small IO (Ming, Christoph)
- Fix typo in RWH lifetime hint (Eugene)
- Dead code removal and documentation (Bart)
- Reduction in memory usage for queue and tag set (Bart)
- Kerneldoc header documentation (André)
- Device/partition revalidation fixes (Jan)
- Stats tracking for flush requests (Konstantin)
- Various other little fixes here and there (et al)"
* tag 'for-5.5/block-20191121' of git://git.kernel.dk/linux-block: (48 commits)
Revert "block: split bio if the only bvec's length is > SZ_4K"
block: add iostat counters for flush requests
block,bfq: Skip tracing hooks if possible
block: sed-opal: Introduce SUM_SET_LIST parameter and append it using 'add_token_u64'
blk-cgroup: cgroup_rstat_updated() shouldn't be called on cgroup1
block: Don't disable interrupts in trigger_softirq()
sbitmap: Delete sbitmap_any_bit_clear()
blk-mq: Delete blk_mq_has_free_tags() and blk_mq_can_queue()
block: split bio if the only bvec's length is > SZ_4K
block: still try to split bio if the bvec crosses pages
blk-cgroup: separate out blkg_rwstat under CONFIG_BLK_CGROUP_RWSTAT
blk-cgroup: reimplement basic IO stats using cgroup rstat
blk-cgroup: remove now unused blkg_print_stat_{bytes|ios}_recursive()
blk-throtl: stop using blkg->stat_bytes and ->stat_ios
bfq-iosched: stop using blkg->stat_bytes and ->stat_ios
bfq-iosched: relocate bfqg_*rwstat*() helpers
block: add zone open, close and finish ioctl support
block: add zone open, close and finish operations
block: Simplify REQ_OP_ZONE_RESET_ALL handling
block: Remove REQ_OP_ZONE_RESET plugging
...
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Linus Torvalds
|
6e7b06a4c8 |
for-5.5/libata-20191121
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Linus Torvalds
|
fb4b3d3fd0 |
for-5.5/io_uring-20191121
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Merge tag 'for-5.5/io_uring-20191121' of git://git.kernel.dk/linux-block
Pull io_uring updates from Jens Axboe:
"A lot of stuff has been going on this cycle, with improving the
support for networked IO (and hence unbounded request completion
times) being one of the major themes. There's been a set of fixes done
this week, I'll send those out as well once we're certain we're fully
happy with them.
This contains:
- Unification of the "normal" submit path and the SQPOLL path (Pavel)
- Support for sparse (and bigger) file sets, and updating of those
file sets without needing to unregister/register again.
- Independently sized CQ ring, instead of just making it always 2x
the SQ ring size. This makes it more flexible for networked
applications.
- Support for overflowed CQ ring, never dropping events but providing
backpressure on submits.
- Add support for absolute timeouts, not just relative ones.
- Support for generic cancellations. This divorces io_uring from
workqueues as well, which additionally gets us one step closer to
generic async system call support.
- With cancellations, we can support grabbing the process file table
as well, just like we do mm context. This allows support for system
calls that create file descriptors, like accept4() support that's
built on top of that.
- Support for io_uring tracing (Dmitrii)
- Support for linked timeouts. These abort an operation if it isn't
completed by the time noted in the linke timeout.
- Speedup tracking of poll requests
- Various cleanups making the coder easier to follow (Jackie, Pavel,
Bob, YueHaibing, me)
- Update MAINTAINERS with new io_uring list"
* tag 'for-5.5/io_uring-20191121' of git://git.kernel.dk/linux-block: (64 commits)
io_uring: make POLL_ADD/POLL_REMOVE scale better
io-wq: remove now redundant struct io_wq_nulls_list
io_uring: Fix getting file for non-fd opcodes
io_uring: introduce req_need_defer()
io_uring: clean up io_uring_cancel_files()
io-wq: ensure free/busy list browsing see all items
io-wq: ensure we have a stable view of ->cur_work for cancellations
io_wq: add get/put_work handlers to io_wq_create()
io_uring: check for validity of ->rings in teardown
io_uring: fix potential deadlock in io_poll_wake()
io_uring: use correct "is IO worker" helper
io_uring: fix -ENOENT issue with linked timer with short timeout
io_uring: don't do flush cancel under inflight_lock
io_uring: flag SQPOLL busy condition to userspace
io_uring: make ASYNC_CANCEL work with poll and timeout
io_uring: provide fallback request for OOM situations
io_uring: convert accept4() -ERESTARTSYS into -EINTR
io_uring: fix error clear of ->file_table in io_sqe_files_register()
io_uring: separate the io_free_req and io_free_req_find_next interface
io_uring: keep io_put_req only responsible for release and put req
...
|
||
|
Linus Torvalds
|
54f0e54011 |
tpmdd update for Linux v5.5
-----BEGIN PGP SIGNATURE----- iJYEABYIAD4WIQRE6pSOnaBC00OEHEIaerohdGur0gUCXcsMpCAcamFya2tvLnNh a2tpbmVuQGxpbnV4LmludGVsLmNvbQAKCRAaerohdGur0pTtAP9+6nxJGXpr8eEA PJgcKiRenRpTeY3xqAsHKRtw6WqpywEAzFUlZvDKEogE15SEVA03vzk/KuP8jM0q pq8mHOdAnwQ= =xCn9 -----END PGP SIGNATURE----- Merge tag 'tpmdd-next-20191112' of git://git.infradead.org/users/jjs/linux-tpmdd Pull tpmd updates from Jarkko Sakkinen: - support for Cr50 fTPM - support for fTPM on AMD Zen+ CPUs - TPM 2.0 trusted keys code relocated from drivers/char/tpm to security/keys * tag 'tpmdd-next-20191112' of git://git.infradead.org/users/jjs/linux-tpmdd: KEYS: trusted: Remove set but not used variable 'keyhndl' tpm: Switch to platform_get_irq_optional() tpm_crb: fix fTPM on AMD Zen+ CPUs KEYS: trusted: Move TPM2 trusted keys code KEYS: trusted: Create trusted keys subsystem KEYS: Use common tpm_buf for trusted and asymmetric keys tpm: Move tpm_buf code to include/linux/ tpm: use GFP_KERNEL instead of GFP_HIGHMEM for tpm_buf tpm: add check after commands attribs tab allocation tpm: tpm_tis_spi: Drop THIS_MODULE usage from driver struct tpm: tpm_tis_spi: Cleanup includes tpm: tpm_tis_spi: Support cr50 devices tpm: tpm_tis_spi: Introduce a flow control callback tpm: Add a flag to indicate TPM power is managed by firmware dt-bindings: tpm: document properties for cr50 tpm_tis: override durations for STM tpm with firmware 1.2.8.28 tpm: provide a way to override the chip returned durations tpm: Remove duplicate code from caps_show() in tpm-sysfs.c |
||
|
Linus Torvalds
|
0be0ee7181 |
vfs: properly and reliably lock f_pos in fdget_pos()
fdget_pos() is used by file operations that will read and update f_pos:
things like "read()", "write()" and "lseek()" (but not, for example,
"pread()/pwrite" that get their file positions elsewhere).
However, it had two separate escape clauses for this, because not
everybody wants or needs serialization of the file position.
The first and most obvious case is the "file descriptor doesn't have a
position at all", ie a stream-like file. Except we didn't actually use
FMODE_STREAM, but instead used FMODE_ATOMIC_POS. The reason for that
was that FMODE_STREAM didn't exist back in the days, but also that we
didn't want to mark all the special cases, so we only marked the ones
that _required_ position atomicity according to POSIX - regular files
and directories.
The case one was intentionally lazy, but now that we _do_ have
FMODE_STREAM we could and should just use it. With the change to use
FMODE_STREAM, there are no remaining uses for FMODE_ATOMIC_POS, and all
the code to set it is deleted.
Any cases where we don't want the serialization because the driver (or
subsystem) doesn't use the file position should just be updated to do
"stream_open()". We've done that for all the obvious and common
situations, we may need a few more. Quoting Kirill Smelkov in the
original FMODE_STREAM thread (see link below for full email):
"And I appreciate if people could help at least somehow with "getting
rid of mixed case entirely" (i.e. always lock f_pos_lock on
!FMODE_STREAM), because this transition starts to diverge from my
particular use-case too far. To me it makes sense to do that
transition as follows:
- convert nonseekable_open -> stream_open via stream_open.cocci;
- audit other nonseekable_open calls and convert left users that
truly don't depend on position to stream_open;
- extend stream_open.cocci to analyze alloc_file_pseudo as well (this
will cover pipes and sockets), or maybe convert pipes and sockets
to FMODE_STREAM manually;
- extend stream_open.cocci to analyze file_operations that use
no_llseek or noop_llseek, but do not use nonseekable_open or
alloc_file_pseudo. This might find files that have stream semantic
but are opened differently;
- extend stream_open.cocci to analyze file_operations whose
.read/.write do not use ppos at all (independently of how file was
opened);
- ...
- after that remove FMODE_ATOMIC_POS and always take f_pos_lock if
!FMODE_STREAM;
- gather bug reports for deadlocked read/write and convert missed
cases to FMODE_STREAM, probably extending stream_open.cocci along
the road to catch similar cases
i.e. always take f_pos_lock unless a file is explicitly marked as
being stream, and try to find and cover all files that are streams"
We have not done the "extend stream_open.cocci to analyze
alloc_file_pseudo" as well, but the previous commit did manually handle
the case of pipes and sockets.
The other case where we can avoid locking f_pos is the "this file
descriptor only has a single user and it is us, and thus there is no
need to lock it".
The second test was correct, although a bit subtle and worth just
re-iterating here. There are two kinds of other sources of references
to the same file descriptor: file descriptors that have been explicitly
shared across fork() or with dup(), and file tables having elevated
reference counts due to threading (or explicit file sharing with
clone()).
The first case would have incremented the file count explicitly, and in
the second case the previous __fdget() would have incremented it for us
and set the FDPUT_FPUT flag.
But in both cases the file count would be greater than one, so the
"file_count(file) > 1" test catches both situations. Also note that if
file_count is 1, that also means that no other thread can have access to
the file table, so there also cannot be races with concurrent calls to
dup()/fork()/clone() that would increment the file count any other way.
Link: https://lore.kernel.org/linux-fsdevel/20190413184404.GA13490@deco.navytux.spb.ru
Cc: Kirill Smelkov <kirr@nexedi.com>
Cc: Eic Dumazet <edumazet@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Marco Elver <elver@google.com>
Cc: Andrea Parri <parri.andrea@gmail.com>
Cc: Paul McKenney <paulmck@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds
|
d8e464ecc1 |
vfs: mark pipes and sockets as stream-like file descriptors
In commit
|
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|
Linus Torvalds
|
219d54332a | Linux 5.4 | ||
|
Linus Torvalds
|
b8387f6f34 |
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull cramfs fix from Al Viro: "Regression fix, fallen through the cracks" * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: cramfs: fix usage on non-MTD device |
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Maxime Bizon
|
3e5aeec0e2 |
cramfs: fix usage on non-MTD device
When both CONFIG_CRAMFS_MTD and CONFIG_CRAMFS_BLOCKDEV are enabled, if
we fail to mount on MTD, we don't try on block device.
Note: this relies upon cramfs_mtd_fill_super() leaving no side
effects on fc state in case of failure; in general, failing
get_tree_...() does *not* mean "fine to try again"; e.g. parsed
options might've been consumed by fill_super callback and freed
on failure.
Fixes:
|
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|
Linus Torvalds
|
6b8a794678 |
virtio: last minute bugfixes
Minor bugfixes all over the place. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> -----BEGIN PGP SIGNATURE----- iQFDBAABCAAtFiEEXQn9CHHI+FuUyooNKB8NuNKNVGkFAl3U6E4PHG1zdEByZWRo YXQuY29tAAoJECgfDbjSjVRpi/oIAJwjsmGhheWTRa+vL/otHu1PjOQ4hziYwu/A n80gp3pmPMa4yV5CDZt72qL4jH8llXPpH4gErvXvSyKfrvmelkJBILB53mAa04pq BZWhkbcqldhMo35y3Ac+WcRk9zlkGq0NPuUcCb959h+pRXuZWtKWxQ2miwi413e1 1ecBRO64SvXSphflFfMMCB730aIXC/dsZAtBXqs8v+i4cIz9g8Z4fZS6c38nUA23 wBleNWylaxHn6UDRZAGRY12JFxFe3QxCP0RKTjwo0eF3HG7IZIGQKHnztjlqD4ko ZOQmxPYW2+96XnS8n7y+gA517u10OIVZBocD9FX10c3wvS+Lpxg= =KAuZ -----END PGP SIGNATURE----- Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost Pull last minute virtio bugfixes from Michael Tsirkin: "Minor bugfixes all over the place" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: virtio_balloon: fix shrinker count virtio_balloon: fix shrinker scan number of pages virtio_console: allocate inbufs in add_port() only if it is needed virtio_ring: fix return code on DMA mapping fails |
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Linus Torvalds
|
2027cabe6a |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fix from Dmitry Torokhov: "Just a single revert as RMI mode should not have been enabled for this model [yet?]" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Revert "Input: synaptics - enable RMI mode for X1 Extreme 2nd Generation" |
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Lyude Paul
|
8791663435 |
Revert "Input: synaptics - enable RMI mode for X1 Extreme 2nd Generation"
This reverts commit 68b9c5066e39af41d3448abfc887c77ce22dd64d. Ugh, I really dropped the ball on this one :\. So as it turns out RMI4 works perfectly fine on the X1 Extreme Gen 2 except for one thing I didn't notice because I usually use the trackpoint: clicking with the touchpad. Somehow this is broken, in fact we don't even seem to indicate BTN_LEFT as a valid event type for the RMI4 touchpad. And, I don't even see any RMI4 events coming from the touchpad when I press down on it. This only seems to work for PS/2 mode. Since that means we have a regression, and PS/2 mode seems to work fine for the time being - revert this for now. We'll have to do a more thorough investigation on this. Signed-off-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20191119234534.10725-1-lyude@redhat.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> |
||
|
Linus Torvalds
|
34c36f4564 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller:
1) Validate tunnel options length in act_tunnel_key, from Xin Long.
2) Fix DMA sync bug in gve driver, from Adi Suresh.
3) TSO kills performance on some r8169 chips due to HW issues, disable
by default in that case, from Corinna Vinschen.
4) Fix clock disable mismatch in fec driver, from Chubong Yuan.
5) Fix interrupt status bits define in hns3 driver, from Huazhong Tan.
6) Fix workqueue deadlocks in qeth driver, from Julian Wiedmann.
7) Don't napi_disable() twice in r8152 driver, from Hayes Wang.
8) Fix SKB extension memory leak, from Florian Westphal.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (54 commits)
r8152: avoid to call napi_disable twice
MAINTAINERS: Add myself as maintainer of virtio-vsock
udp: drop skb extensions before marking skb stateless
net: rtnetlink: prevent underflows in do_setvfinfo()
can: m_can_platform: remove unnecessary m_can_class_resume() call
can: m_can_platform: set net_device structure as driver data
hv_netvsc: Fix send_table offset in case of a host bug
hv_netvsc: Fix offset usage in netvsc_send_table()
net-ipv6: IPV6_TRANSPARENT - check NET_RAW prior to NET_ADMIN
sfc: Only cancel the PPS workqueue if it exists
nfc: port100: handle command failure cleanly
net-sysfs: fix netdev_queue_add_kobject() breakage
r8152: Re-order napi_disable in rtl8152_close
net: qca_spi: Move reset_count to struct qcaspi
net: qca_spi: fix receive buffer size check
net/ibmvnic: Ignore H_FUNCTION return from H_EOI to tolerate XIVE mode
Revert "net/ibmvnic: Fix EOI when running in XIVE mode"
net/mlxfw: Verify FSM error code translation doesn't exceed array size
net/mlx5: Update the list of the PCI supported devices
net/mlx5: Fix auto group size calculation
...
|
||
Marc Dionne
|
b485275f1a |
afs: Fix large file support
By default s_maxbytes is set to MAX_NON_LFS, which limits the usable file size to 2GB, enforced by the vfs. Commit |
||
|
Marc Dionne
|
cd340703c2 |
afs: Fix possible assert with callbacks from yfs servers
Servers sending callback breaks to the YFS_CM_SERVICE service may
send up to YFSCBMAX (1024) fids in a single RPC. Anything over
AFSCBMAX (50) will cause the assert in afs_break_callbacks to trigger.
Remove the assert, as the count has already been checked against
the appropriate max values in afs_deliver_cb_callback and
afs_deliver_yfs_cb_callback.
Fixes:
|
||
Hayes Wang
|
5b1d9c17a3 |
r8152: avoid to call napi_disable twice
Call napi_disable() twice would cause dead lock. There are three situations
may result in the issue.
1. rtl8152_pre_reset() and set_carrier() are run at the same time.
2. Call rtl8152_set_tunable() after rtl8152_close().
3. Call rtl8152_set_ringparam() after rtl8152_close().
For #1, use the same solution as commit
|
||
|
Linus Torvalds
|
cc079039c9 |
Merge branch 'akpm' (patches from Andrew)
Merge misc fixes from Andrew Morton: "Three fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: mm/ksm.c: don't WARN if page is still mapped in remove_stable_node() mm/memory_hotplug: don't access uninitialized memmaps in shrink_zone_span() Revert "fs: ocfs2: fix possible null-pointer dereferences in ocfs2_xa_prepare_entry()" |
||
David S. Miller
|
068299374c |
linux-can-fixes-for-5.4-20191122
-----BEGIN PGP SIGNATURE----- iQFHBAABCgAxFiEEmvEkXzgOfc881GuFWsYho5HknSAFAl3X9E0THG1rbEBwZW5n dXRyb25peC5kZQAKCRBaxiGjkeSdIIeQB/9EctdOAnM39+4vy22n9veOj/qEWW1S VbIgG2WG3eHRPhCVoA7d61QS3/Mdeme0HU6icUXG3AYomCEEDu/Rc0kaFL8G3Zj5 mfL7ypIrjwjC2aEvaRzWVk4+0RW2xAchWONLycaC3ubolmr2q04ETDoY/dmWgByG UpkhcCuy95kxD5e10do0g8UsP8xJwTEgRD91uPk2/M/f90LTJ1EVCh4nsntoYUDj PmhavZNoiRBQTjajaHzE6jBQp6kJFvImcbMpn1mFQOuqSnk/b0hWSkgtP40Mp6xD 1j9M2JuttE5ai0eWh8xk0m3/mbCuCeTvJyW4F+c2OQ/aPzl1FqNkrTqh =9oQw -----END PGP SIGNATURE----- Merge tag 'linux-can-fixes-for-5.4-20191122' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can Marc Kleine-Budde says: ==================== pull-request: can 2019-11-22 this is a pull request of 2 patches for net/master, if possible for the current release cycle. Otherwise these patches should hit v5.4 via the stable tree. Both patches of this pull request target the m_can driver. Pankaj Sharma fixes the fallout in the m_can_platform part, which appeared with the introduction of the m_can platform framework. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
||
Stefano Garzarella
|
efabb6c688 |
MAINTAINERS: Add myself as maintainer of virtio-vsock
Since I'm actively working on vsock and virtio/vhost transports, Stefan suggested to help him to maintain it. Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
||
Florian Westphal
|
677bf08cfd |
udp: drop skb extensions before marking skb stateless
Once udp stack has set the UDP_SKB_IS_STATELESS flag, later skb free
assumes all skb head state has been dropped already.
This will leak the extension memory in case the skb has extensions other
than the ipsec secpath, e.g. bridge nf data.
To fix this, set the UDP_SKB_IS_STATELESS flag only if we don't have
extensions or if the extension space can be free'd.
Fixes:
|
||
Dan Carpenter
|
ff08ddba3a |
net: rtnetlink: prevent underflows in do_setvfinfo()
The "ivm->vf" variable is a u32, but the problem is that a number of
drivers cast it to an int and then forget to check for negatives. An
example of this is in the cxgb4 driver.
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
2890 static int cxgb4_mgmt_get_vf_config(struct net_device *dev,
2891 int vf, struct ifla_vf_info *ivi)
^^^^^^
2892 {
2893 struct port_info *pi = netdev_priv(dev);
2894 struct adapter *adap = pi->adapter;
2895 struct vf_info *vfinfo;
2896
2897 if (vf >= adap->num_vfs)
^^^^^^^^^^^^^^^^^^^
2898 return -EINVAL;
2899 vfinfo = &adap->vfinfo[vf];
^^^^^^^^^^^^^^^^^^^^^^^^^^
There are 48 functions affected.
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c:8435 hclge_set_vf_vlan_filter() warn: can 'vfid' underflow 's32min-2147483646'
drivers/net/ethernet/freescale/enetc/enetc_pf.c:377 enetc_pf_set_vf_mac() warn: can 'vf' underflow 's32min-2147483646'
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c:2899 cxgb4_mgmt_get_vf_config() warn: can 'vf' underflow 's32min-254'
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c:2960 cxgb4_mgmt_set_vf_rate() warn: can 'vf' underflow 's32min-254'
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c:3019 cxgb4_mgmt_set_vf_rate() warn: can 'vf' underflow 's32min-254'
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c:3038 cxgb4_mgmt_set_vf_vlan() warn: can 'vf' underflow 's32min-254'
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c:3086 cxgb4_mgmt_set_vf_link_state() warn: can 'vf' underflow 's32min-254'
drivers/net/ethernet/chelsio/cxgb/cxgb2.c:791 get_eeprom() warn: can 'i' underflow 's32min-(-4),0,4-s32max'
drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c:82 bnxt_set_vf_spoofchk() warn: can 'vf_id' underflow 's32min-65534'
drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c:164 bnxt_set_vf_trust() warn: can 'vf_id' underflow 's32min-65534'
drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c:186 bnxt_get_vf_config() warn: can 'vf_id' underflow 's32min-65534'
drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c:228 bnxt_set_vf_mac() warn: can 'vf_id' underflow 's32min-65534'
drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c:264 bnxt_set_vf_vlan() warn: can 'vf_id' underflow 's32min-65534'
drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c:293 bnxt_set_vf_bw() warn: can 'vf_id' underflow 's32min-65534'
drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c:333 bnxt_set_vf_link_state() warn: can 'vf_id' underflow 's32min-65534'
drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c:2595 bnx2x_vf_op_prep() warn: can 'vfidx' underflow 's32min-63'
drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c:2595 bnx2x_vf_op_prep() warn: can 'vfidx' underflow 's32min-63'
drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c:2281 bnx2x_post_vf_bulletin() warn: can 'vf' underflow 's32min-63'
drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c:2285 bnx2x_post_vf_bulletin() warn: can 'vf' underflow 's32min-63'
drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c:2286 bnx2x_post_vf_bulletin() warn: can 'vf' underflow 's32min-63'
drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c:2292 bnx2x_post_vf_bulletin() warn: can 'vf' underflow 's32min-63'
drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c:2297 bnx2x_post_vf_bulletin() warn: can 'vf' underflow 's32min-63'
drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c:1832 qlcnic_sriov_set_vf_mac() warn: can 'vf' underflow 's32min-254'
drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c:1864 qlcnic_sriov_set_vf_tx_rate() warn: can 'vf' underflow 's32min-254'
drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c:1937 qlcnic_sriov_set_vf_vlan() warn: can 'vf' underflow 's32min-254'
drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c:2005 qlcnic_sriov_get_vf_config() warn: can 'vf' underflow 's32min-254'
drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c:2036 qlcnic_sriov_set_vf_spoofchk() warn: can 'vf' underflow 's32min-254'
drivers/net/ethernet/emulex/benet/be_main.c:1914 be_get_vf_config() warn: can 'vf' underflow 's32min-65534'
drivers/net/ethernet/emulex/benet/be_main.c:1915 be_get_vf_config() warn: can 'vf' underflow 's32min-65534'
drivers/net/ethernet/emulex/benet/be_main.c:1922 be_set_vf_tvt() warn: can 'vf' underflow 's32min-65534'
drivers/net/ethernet/emulex/benet/be_main.c:1951 be_clear_vf_tvt() warn: can 'vf' underflow 's32min-65534'
drivers/net/ethernet/emulex/benet/be_main.c:2063 be_set_vf_tx_rate() warn: can 'vf' underflow 's32min-65534'
drivers/net/ethernet/emulex/benet/be_main.c:2091 be_set_vf_link_state() warn: can 'vf' underflow 's32min-65534'
drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c:2609 ice_set_vf_port_vlan() warn: can 'vf_id' underflow 's32min-65534'
drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c:3050 ice_get_vf_cfg() warn: can 'vf_id' underflow 's32min-65534'
drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c:3103 ice_set_vf_spoofchk() warn: can 'vf_id' underflow 's32min-65534'
drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c:3181 ice_set_vf_mac() warn: can 'vf_id' underflow 's32min-65534'
drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c:3237 ice_set_vf_trust() warn: can 'vf_id' underflow 's32min-65534'
drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c:3286 ice_set_vf_link_state() warn: can 'vf_id' underflow 's32min-65534'
drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c:3919 i40e_validate_vf() warn: can 'vf_id' underflow 's32min-2147483646'
drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c:3957 i40e_ndo_set_vf_mac() warn: can 'vf_id' underflow 's32min-2147483646'
drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c:4104 i40e_ndo_set_vf_port_vlan() warn: can 'vf_id' underflow 's32min-2147483646'
drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c:4263 i40e_ndo_set_vf_bw() warn: can 'vf_id' underflow 's32min-2147483646'
drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c:4309 i40e_ndo_get_vf_config() warn: can 'vf_id' underflow 's32min-2147483646'
drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c:4371 i40e_ndo_set_vf_link_state() warn: can 'vf_id' underflow 's32min-2147483646'
drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c:4441 i40e_ndo_set_vf_spoofchk() warn: can 'vf_id' underflow 's32min-2147483646'
drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c:4441 i40e_ndo_set_vf_spoofchk() warn: can 'vf_id' underflow 's32min-2147483646'
drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c:4504 i40e_ndo_set_vf_trust() warn: can 'vf_id' underflow 's32min-2147483646'
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
||
|
Linus Torvalds
|
a6b0373ffc |
Power management regression fix for final 5.4
Fix problems with switching cpufreq drivers on some x86 systems with ACPI (and with changing the operation modes of the intel_pstate driver on those systems) introduced by recent changes related to the management of frequency limits in cpufreq. -----BEGIN PGP SIGNATURE----- iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAl3X1LQSHHJqd0Byand5 c29ja2kubmV0AAoJEILEb/54YlRxAgMQAKFu4e3IZ7vVMo3gu61r9amqVG03prMh Ca8lvMd0pxp1wtL6gSkAB0Kces1hwooz4bpA/Khm7igBfdilcNu9gv/d9EvGRCU1 /iOWHrsYS4gQnWwjJ001x+PokQQEFv+uGw9a6vwlEVU4a6TImlJKF+99Beogzr7U tuTzEpim2ruMHFaP5EqjC/XcU+uzyW2rMnc7fH0t55W0saIT2trI6Nj+DJgZWPth eRbgS4aOy3Bt9foBCVOFtkXz5VvHS3EUMPI7DxOx3OTt8D469NBDYx/ui8y7frIF t3vME/UuWCJmEUJ7o0CqhVcB4TW5gZaIE7P2TO9pSCxPxKtPbROdfrR3snGPLjNl syD7yqwuYpDbfi+0v3Mi3fnUqnnsiXPg2mFCl/w0tgIKz1iAv20pOWnCqja4QreG Z+Ax1owzrEYlDaV5lDXYZd48dqItj4dMuUBSwXu8RBk+LE/Bjro0jnnK4zUD/M1m sukrvgFrIXpTgqSnm8sX4fMyZnEvmNtG2kAYl6F84k2EICbOLkXD9ypBANb/9C3h KcSzJFr76de18s5bnMBgoQRvfElbOotr63TyzeRo/6mF0G4+BpyAEsP7FzRSq+6u cd+lrCvItzwIgD/5XU1WpkoOoYM//c0Y9JUHKwtnd+FSp1psGJwlhgbbckazQ699 A5DC7maAkkHb =S23p -----END PGP SIGNATURE----- Merge tag 'pm-5.4-final' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management regression fix from Rafael Wysocki: "Fix problems with switching cpufreq drivers on some x86 systems with ACPI (and with changing the operation modes of the intel_pstate driver on those systems) introduced by recent changes related to the management of frequency limits in cpufreq" * tag 'pm-5.4-final' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM: QoS: Invalidate frequency QoS requests after removal |
||
|
Linus Torvalds
|
5d867ab037 |
drm fixes for 5.4
amdgpu:
- Remove experimental flag for navi14
- Fix confusing power message failures on older VI parts
- Hang fix for gfxoff when using the read register interface
- Two stability regression fixes for Raven
i915:
- Fix kernel oops on dumb_create ioctl on no crtc situation
- Fix bad ugly colored flash on VLV/CHV related to gamma LUT update
- Fix unity of the frequencies reported on PMU
- Fix kernel oops on set_page_dirty using better locks around it
- Protect the request pointer with RCU to prevent it being freed while we might need still
- Make pool objects read-only
- Restore physical addresses for fb_map to avoid corrupted page table
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Merge tag 'drm-fixes-2019-11-22' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Two sets of fixes in here, one for amdgpu, and one for i915.
The amdgpu ones are pretty small, i915's CI system seems to have a few
problems in the last week or so, there is one major regression fix for
fb_mmap, but there are a bunch of other issues fixed in there as well,
oops, screen flashes and rcu related.
amdgpu:
- Remove experimental flag for navi14
- Fix confusing power message failures on older VI parts
- Hang fix for gfxoff when using the read register interface
- Two stability regression fixes for Raven
i915:
- Fix kernel oops on dumb_create ioctl on no crtc situation
- Fix bad ugly colored flash on VLV/CHV related to gamma LUT update
- Fix unity of the frequencies reported on PMU
- Fix kernel oops on set_page_dirty using better locks around it
- Protect the request pointer with RCU to prevent it being freed
while we might need still
- Make pool objects read-only
- Restore physical addresses for fb_map to avoid corrupted page
table"
* tag 'drm-fixes-2019-11-22' of git://anongit.freedesktop.org/drm/drm:
drm/i915/fbdev: Restore physical addresses for fb_mmap()
Revert "drm/amd/display: enable S/G for RAVEN chip"
drm/amdgpu: disable gfxoff on original raven
drm/amdgpu: disable gfxoff when using register read interface
drm/amd/powerplay: correct fine grained dpm force level setting
drm/amd/powerplay: issue no PPSMC_MSG_GetCurrPkgPwr on unsupported ASICs
drm/amdgpu: remove experimental flag for Navi14
drm/i915: make pool objects read-only
drm/i915: Protect request peeking with RCU
drm/i915/userptr: Try to acquire the page lock around set_page_dirty()
drm/i915/pmu: "Frequency" is reported as accumulated cycles
drm/i915: Preload LUTs if the hw isn't currently using them
drm/i915: Don't oops in dumb_create ioctl if we have no crtcs
|
||
Andrey Ryabinin
|
9a63236f1a |
mm/ksm.c: don't WARN if page is still mapped in remove_stable_node()
It's possible to hit the WARN_ON_ONCE(page_mapped(page)) in
remove_stable_node() when it races with __mmput() and squeezes in
between ksm_exit() and exit_mmap().
WARNING: CPU: 0 PID: 3295 at mm/ksm.c:888 remove_stable_node+0x10c/0x150
Call Trace:
remove_all_stable_nodes+0x12b/0x330
run_store+0x4ef/0x7b0
kernfs_fop_write+0x200/0x420
vfs_write+0x154/0x450
ksys_write+0xf9/0x1d0
do_syscall_64+0x99/0x510
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Remove the warning as there is nothing scary going on.
Link: http://lkml.kernel.org/r/20191119131850.5675-1-aryabinin@virtuozzo.com
Fixes:
|
||
David Hildenbrand
|
7ce700bf11 |
mm/memory_hotplug: don't access uninitialized memmaps in shrink_zone_span()
Let's limit shrinking to !ZONE_DEVICE so we can fix the current code. We should never try to touch the memmap of offline sections where we could have uninitialized memmaps and could trigger BUGs when calling page_to_nid() on poisoned pages. There is no reliable way to distinguish an uninitialized memmap from an initialized memmap that belongs to ZONE_DEVICE, as we don't have anything like SECTION_IS_ONLINE we can use similar to pfn_to_online_section() for !ZONE_DEVICE memory. E.g., set_zone_contiguous() similarly relies on pfn_to_online_section() and will therefore never set a ZONE_DEVICE zone consecutive. Stopping to shrink the ZONE_DEVICE therefore results in no observable changes, besides /proc/zoneinfo indicating different boundaries - something we can totally live with. Before commit |
||
Joseph Qi
|
94b07b6f9e |
Revert "fs: ocfs2: fix possible null-pointer dereferences in ocfs2_xa_prepare_entry()"
This reverts commit |
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Pankaj Sharma
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0704c57436 |
can: m_can_platform: remove unnecessary m_can_class_resume() call
The function m_can_runtime_resume() is getting recursively called from
m_can_class_resume(). This results in a lock up.
We need not call m_can_class_resume() during m_can_runtime_resume().
Fixes:
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Pankaj Sharma
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2ea872490e |
can: m_can_platform: set net_device structure as driver data
The current code is failing during clock prepare enable because of not
getting proper clock from platform device.
[ 0.852089] Call trace:
[ 0.854516] 0xffff0000fa22a668
[ 0.857638] clk_prepare+0x20/0x34
[ 0.861019] m_can_runtime_resume+0x2c/0xe4
[ 0.865180] pm_generic_runtime_resume+0x28/0x38
[ 0.869770] __rpm_callback+0x16c/0x1bc
[ 0.873583] rpm_callback+0x24/0x78
[ 0.877050] rpm_resume+0x428/0x560
[ 0.880517] __pm_runtime_resume+0x7c/0xa8
[ 0.884593] m_can_clk_start.isra.9.part.10+0x1c/0xa8
[ 0.889618] m_can_class_register+0x138/0x370
[ 0.893950] m_can_plat_probe+0x120/0x170
[ 0.897939] platform_drv_probe+0x4c/0xa0
[ 0.901924] really_probe+0xd8/0x31c
[ 0.905477] driver_probe_device+0x58/0xe8
[ 0.909551] device_driver_attach+0x68/0x70
[ 0.913711] __driver_attach+0x9c/0xf8
[ 0.917437] bus_for_each_dev+0x50/0xa0
[ 0.921251] driver_attach+0x20/0x28
[ 0.924804] bus_add_driver+0x148/0x1fc
[ 0.928617] driver_register+0x6c/0x124
[ 0.932431] __platform_driver_register+0x48/0x50
[ 0.937113] m_can_plat_driver_init+0x18/0x20
[ 0.941446] do_one_initcall+0x4c/0x19c
[ 0.945259] kernel_init_freeable+0x1d0/0x280
[ 0.949591] kernel_init+0x10/0x100
[ 0.953057] ret_from_fork+0x10/0x18
[ 0.956614] Code: 00000000 00000000 00000000 00000000 (fa22a668)
[ 0.962681] ---[ end trace 881f71bd609de763 ]---
[ 0.967301] Kernel panic - not syncing: Attempted to kill init!
A device driver for CAN controller hardware registers itself with the
Linux network layer as a network device. So, the driver data for m_can
should ideally be of type net_device.
Fixes:
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David S. Miller
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d814b67e50 |
Merge branch 'hv_netvsc-Fix-send-indirection-table-offset'
Haiyang Zhang says: ==================== hv_netvsc: Fix send indirection table offset Fix send indirection table offset issues related to guest and host bugs. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
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Haiyang Zhang
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171c1fd98d |
hv_netvsc: Fix send_table offset in case of a host bug
If negotiated NVSP version <= NVSP_PROTOCOL_VERSION_6, the offset may
be wrong (too small) due to a host bug. This can cause missing the
end of the send indirection table, and add multiple zero entries from
leading zeros before the data region. This bug adds extra burden on
channel 0.
So fix the offset by computing it from the data structure sizes. This
will ensure netvsc driver runs normally on unfixed hosts, and future
fixed hosts.
Fixes:
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Haiyang Zhang
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71f21959dd |
hv_netvsc: Fix offset usage in netvsc_send_table()
To reach the data region, the existing code adds offset in struct
nvsp_5_send_indirect_table on the beginning of this struct. But the
offset should be based on the beginning of its container,
struct nvsp_message. This bug causes the first table entry missing,
and adds an extra zero from the zero pad after the data region.
This can put extra burden on the channel 0.
So, correct the offset usage. Also add a boundary check to ensure
not reading beyond data region.
Fixes:
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Maciej Żenczykowski
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35fc59c956 |
net-ipv6: IPV6_TRANSPARENT - check NET_RAW prior to NET_ADMIN
NET_RAW is less dangerous, so more likely to be available to a process, so check it first to prevent some spurious logging. This matches IP_TRANSPARENT which checks NET_RAW first. Signed-off-by: Maciej Żenczykowski <maze@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> |