mirror of https://gitee.com/openkylin/linux.git
17448 Commits
Author | SHA1 | Message | Date |
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Linus Torvalds | a0651c7fa2 |
powerpc fixes for 4.15 #3
Two fixes for nasty kexec/kdump crashes in certain configurations. A couple of minor fixes for the new TIDR code. A fix for an oops in a CXL error handling path. Thanks to: Andrew Donnellan, Christophe Lombard, David Gibson, Mahesh Salgaonkar, Vaibhav Jain. -----BEGIN PGP SIGNATURE----- iQIwBAABCAAaBQJaITuLExxtcGVAZWxsZXJtYW4uaWQuYXUACgkQUevqPMjhpYBS 9A/+IYjSoDdTcJXqfR46xn2147RGBQIym2rqaBJd+WwZj8Br0Yap5hrPtr1zAilD 75aj0CRR0Y91nodnfishjujsJZckyQYOHi0/WQluLbpRlWEmeQt47gDjz70Wt1T8 BZUEVqPF2k6Mk5WJV6sSIHBtw2uKrl/lJZAUJbTobOWgsMdopO504MkFxvySWKMV AX7UEXrcxPLb/yVGk9Ih9iwXxm/ymvQrkljp4s3jWqkc7bWwN93CmimIQ+X6bop0 yqmAzCiUJsPsulmkBkmsY78llPg0roUrh98R4JIe0+cUiQROa5Kvt/u0zohN/rqS 6SkPT0ds2Fs1z5cHayyQWMN0j0A5sfwW2KRMLHCJjAwAxzoT2CdMZDv0+QLi0ETy RGtYvnew8eCqrfBpyBneEP1JySARJ85ML4rZvudewSHJoMzTkYDnSEKU8+wlqRIf KHdvHmErRMlF7OB6Om3Uxz6oIXan/Puj7HsdL8f7MazjFPqb/r+/AuTDzUov17Fs 7Y0qVawFyJyAJ8zkUAGB1kN2FN+eYnsFxUa7ubpeJY7VX+8pUOwT24rFc803eAu4 p/ad1CpBy+8xaq83WeaM6BpMqW80ao2BzzbQUhDcEQl4qovO/ZEZxQt0ySoQp+SY MqE8SnZMkL/30CasbKTAqmt+P44GCSYZVtOUwTmvLNMTjSg= =/LD/ -----END PGP SIGNATURE----- Merge tag 'powerpc-4.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: "Two fixes for nasty kexec/kdump crashes in certain configurations. A couple of minor fixes for the new TIDR code. A fix for an oops in a CXL error handling path. Thanks to: Andrew Donnellan, Christophe Lombard, David Gibson, Mahesh Salgaonkar, Vaibhav Jain" * tag 'powerpc-4.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc: Do not assign thread.tidr if already assigned powerpc: Avoid signed to unsigned conversion in set_thread_tidr() powerpc/kexec: Fix kexec/kdump in P9 guest kernels powerpc/powernv: Fix kexec crashes caused by tlbie tracing cxl: Check if vphb exists before iterating over AFU devices |
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Linus Torvalds | 9e0600f5cf |
* x86 bugfixes: APIC, nested virtualization, IOAPIC
* PPC bugfix: HPT guests on a POWER9 radix host -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQEcBAABAgAGBQJaICi1AAoJEL/70l94x66DjvEIAIML/e9YX1YrJZi0rsB9cbm0 Le3o5b3wKxPrlZdnpOZQ2mVWubUQdiHMPGX6BkpgyiJWUchnbj5ql1gUf5S0i3jk TOk6nae6DU94xBuboeqZJlmx2VfPY/fqzLWsX3HFHpnzRl4XvXL5o7cWguIxVcVO yU6bPgbAXyXSBennLWZxC3aQ2Ojikr3uxZQpUZTAPOW5hFINpCKCpqJBMxsb67wq rwI0cJhRl92mHpbe8qeNJhavqY5eviy9iPUaZrOW9P4yw1uqjTAjgsUc1ydiaZSV rOHeKBOgVfY/KBaNJKyKySfuL1MJ+DLcQqm9RlGpKNpFIeB0vvSf0gtmmqIAXIk= =kh2y -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull KVM fixes from Paolo Bonzini: - x86 bugfixes: APIC, nested virtualization, IOAPIC - PPC bugfix: HPT guests on a POWER9 radix host * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (26 commits) KVM: Let KVM_SET_SIGNAL_MASK work as advertised KVM: VMX: Fix vmx->nested freeing when no SMI handler KVM: VMX: Fix rflags cache during vCPU reset KVM: X86: Fix softlockup when get the current kvmclock KVM: lapic: Fixup LDR on load in x2apic KVM: lapic: Split out x2apic ldr calculation KVM: PPC: Book3S HV: Fix migration and HPT resizing of HPT guests on radix hosts KVM: vmx: use X86_CR4_UMIP and X86_FEATURE_UMIP KVM: x86: Fix CPUID function for word 6 (80000001_ECX) KVM: nVMX: Fix vmx_check_nested_events() return value in case an event was reinjected to L2 KVM: x86: ioapic: Preserve read-only values in the redirection table KVM: x86: ioapic: Clear Remote IRR when entry is switched to edge-triggered KVM: x86: ioapic: Remove redundant check for Remote IRR in ioapic_set_irq KVM: x86: ioapic: Don't fire level irq when Remote IRR set KVM: x86: ioapic: Fix level-triggered EOI and IOAPIC reconfigure race KVM: x86: inject exceptions produced by x86_decode_insn KVM: x86: Allow suppressing prints on RDMSR/WRMSR of unhandled MSRs KVM: x86: fix em_fxstor() sleeping while in atomic KVM: nVMX: Fix mmu context after VMLAUNCH/VMRESUME failure KVM: nVMX: Validate the IA32_BNDCFGS on nested VM-entry ... |
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Dan Williams | e4e40e0263 |
mm: switch to 'define pmd_write' instead of __HAVE_ARCH_PMD_WRITE
In response to compile breakage introduced by a series that added the pud_write helper to x86, Stephen notes: did you consider using the other paradigm: In arch include files: #define pud_write pud_write static inline int pud_write(pud_t pud) ..... Then in include/asm-generic/pgtable.h: #ifndef pud_write tatic inline int pud_write(pud_t pud) { .... } #endif If you had, then the powerpc code would have worked ... ;-) and many of the other interfaces in include/asm-generic/pgtable.h are protected that way ... Given that some architecture already define pmd_write() as a macro, it's a net reduction to drop the definition of __HAVE_ARCH_PMD_WRITE. Link: http://lkml.kernel.org/r/151129126721.37405.13339850900081557813.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com> Suggested-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> Cc: Oliver OHalloran <oliveroh@au1.ibm.com> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Vaibhav Jain | 7e4d423326 |
powerpc: Do not assign thread.tidr if already assigned
If set_thread_tidr() is called twice for same task_struct then it will allocate a new tidr value to it leaving the previous value still dangling in the vas_thread_ida table. To fix this the patch changes set_thread_tidr() to check if a tidr value is already assigned to the task_struct and if yes then returns zero. Fixes: ec233ede4c86("powerpc: Add support for setting SPRN_TIDR") Signed-off-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com> Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> [mpe: Modify to return 0 in the success case, not the TID value] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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Vaibhav Jain | aca7573fde |
powerpc: Avoid signed to unsigned conversion in set_thread_tidr()
There is an unsafe signed to unsigned conversion in set_thread_tidr() that may cause an error value to be assigned to SPRN_TIDR register and used as thread-id. The issue happens as assign_thread_tidr() returns an int and thread.tidr is an unsigned-long. So a negative error code returned from assign_thread_tidr() will fail the error check and gets assigned as tidr as a large positive value. To fix this the patch assigns the return value of assign_thread_tidr() to a temporary int and assigns it to thread.tidr iff its '> 0'. The patch shouldn't impact the calling convention of set_thread_tidr() i.e all -ve return-values are error codes and a return value of '0' indicates success. Fixes: ec233ede4c86("powerpc: Add support for setting SPRN_TIDR") Signed-off-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com> Reviewed-by: Christophe Lombard clombard@linux.vnet.ibm.com Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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Paolo Bonzini | a63dd7480d |
PPC KVM fixes for 4.15
One commit here, that fixes a couple of bugs relating to the patch series that enables HPT guests to run on a radix host on POWER9 systems. This patch series went upstream in the 4.15 merge window, so no stable backport is required. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAABAgAGBQJaGKSnAAoJEJ2a6ncsY3GfF7MIANLLhznEMrWq8jw4g95WsJU1 MkDGwp8kIdhIOM9HD6JRskoJZB5Mws2BWlQ5PSaVFxO6v6eUgNLaRb/UBxC1r7gU 1f9/8corY4BNkezSdJqTL7Xgp13KjTU726OwYAqCPEyCSPEc9ciMyeIgyZuv2dPa Pju+u4tnA+9JJyskgNL+/ybOOZwVat91VmNUVRq29zP6+zo1tmIDxrQchy6Bqui/ 7Wg298G+yjAkJ8ktQu69ACk+0oEBGUOcLUlraqGSr9auR+b0nJ1PAGCDRaONdwgE +X+OE+t+UC6rU+coUXMwO+Id0X7HMdsLQd3066ODEtD55g8MIVZ126Wt8xDmj5o= =GSTh -----END PGP SIGNATURE----- Merge tag 'kvm-ppc-fixes-4.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into kvm-master PPC KVM fixes for 4.15 One commit here, that fixes a couple of bugs relating to the patch series that enables HPT guests to run on a radix host on POWER9 systems. This patch series went upstream in the 4.15 merge window, so no stable backport is required. |
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Jan H. Schönherr | 20b7035c66 |
KVM: Let KVM_SET_SIGNAL_MASK work as advertised
KVM API says for the signal mask you set via KVM_SET_SIGNAL_MASK, that "any unblocked signal received [...] will cause KVM_RUN to return with -EINTR" and that "the signal will only be delivered if not blocked by the original signal mask". This, however, is only true, when the calling task has a signal handler registered for a signal. If not, signal evaluation is short-circuited for SIG_IGN and SIG_DFL, and the signal is either ignored without KVM_RUN returning or the whole process is terminated. Make KVM_SET_SIGNAL_MASK behave as advertised by utilizing logic similar to that in do_sigtimedwait() to avoid short-circuiting of signals. Signed-off-by: Jan H. Schönherr <jschoenh@amazon.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Linus Torvalds | 844056fd74 |
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner: - The final conversion of timer wheel timers to timer_setup(). A few manual conversions and a large coccinelle assisted sweep and the removal of the old initialization mechanisms and the related code. - Remove the now unused VSYSCALL update code - Fix permissions of /proc/timer_list. I still need to get rid of that file completely - Rename a misnomed clocksource function and remove a stale declaration * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits) m68k/macboing: Fix missed timer callback assignment treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts timer: Remove redundant __setup_timer*() macros timer: Pass function down to initialization routines timer: Remove unused data arguments from macros timer: Switch callback prototype to take struct timer_list * argument timer: Pass timer_list pointer to callbacks unconditionally Coccinelle: Remove setup_timer.cocci timer: Remove setup_*timer() interface timer: Remove init_timer() interface treewide: setup_timer() -> timer_setup() (2 field) treewide: setup_timer() -> timer_setup() treewide: init_timer() -> setup_timer() treewide: Switch DEFINE_TIMER callbacks to struct timer_list * s390: cmm: Convert timers to use timer_setup() lightnvm: Convert timers to use timer_setup() drivers/net: cris: Convert timers to use timer_setup() drm/vc4: Convert timers to use timer_setup() block/laptop_mode: Convert timers to use timer_setup() net/atm/mpc: Avoid open-coded assignment of timer callback function ... |
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Linus Torvalds | 83ada03196 |
powerpc fixes for 4.15 #2
A small batch of fixes, about 50% tagged for stable and the rest for recently merged code. There's one more fix for the >128T handling on hash. Once a process had requested a single mmap above 128T we would then always search above 128T. The correct behaviour is to consider the hint address in isolation for each mmap request. Then a couple of fixes for the IMC PMU, a missing EXPORT_SYMBOL in VAS, a fix for STRICT_KERNEL_RWX on 32-bit, and a fix to correctly identify P9 DD2.1 but in code that is currently not used by default. Thanks to: Aneesh Kumar K.V, Christophe Leroy, Madhavan Srinivasan, Sukadev Bhattiprolu. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJaF/VqAAoJEFHr6jzI4aWA994P/3NNXkSASJHjLrIlQAKXtmx9 lrv1v+6MbPWhyB8Q8LVnnC3Ab2LTHnkccjq2Jw0bP0RQ86HF4mH7Sb7N5Wj0cG+M 5NioikvGE057ncLfxVhesOK0C9Lhc7Zb+zphXZliYP76IGxwbxorJRepeZctVkyO KPMv4eaImdblVn71aoQQSlepON4+/rtiW2yo5u98uCqR+Ttds4J1fiDZ4TNrBYRP Ilh6DmA//CWvN+KsGT+brRd/PjEkxQKHyS8px3lxRl4cwCJucXPCik/Gn9t6OiMw 3S6y1Mu8nrh4z+YepKv6APvl2DEwwXn8w9f85kn+QiE9Qp3Z/wckW9/4LT5FeuKE L8E3dKq2NzJ9oDs/20sVbBvVR7CUvBoyWytsXVkmmlC6sVReTrYAJ1UP9HnNvcF6 be4zYUKusU83uG6saGgchRrPUrD31XKXw8Piv9EoWo1Uz7VgWCkxidclRNocgeDO k5VxYnRd9jPsv2pCzXH2YmuQAypGUh12IPTxEOnSt5uzXSXcamZJBLKp5fAJ/9dl jD6GlRQMX8JpNRJzxOBLly3CmwQBw2ekOuPLXI+M/ilks66AGK8lp4bg5cWwDGNe puzmRJ2mO3dnFlVUHBQ5LyX8ne4yunin1JZB1YQ4xm8yxZbGO2AdypEWMSkPKNPN fkrGPlwQ1JwFheMbHHLj =gv70 -----END PGP SIGNATURE----- Merge tag 'powerpc-4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: "A small batch of fixes, about 50% tagged for stable and the rest for recently merged code. There's one more fix for the >128T handling on hash. Once a process had requested a single mmap above 128T we would then always search above 128T. The correct behaviour is to consider the hint address in isolation for each mmap request. Then a couple of fixes for the IMC PMU, a missing EXPORT_SYMBOL in VAS, a fix for STRICT_KERNEL_RWX on 32-bit, and a fix to correctly identify P9 DD2.1 but in code that is currently not used by default. Thanks to: Aneesh Kumar K.V, Christophe Leroy, Madhavan Srinivasan, Sukadev Bhattiprolu" * tag 'powerpc-4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/64s: Fix Power9 DD2.1 logic in DT CPU features powerpc/perf: Fix IMC_MAX_PMU macro powerpc/perf: Fix pmu_count to count only nest imc pmus powerpc: Fix boot on BOOK3S_32 with CONFIG_STRICT_KERNEL_RWX powerpc/perf/imc: Use cpu_to_node() not topology_physical_package_id() powerpc/vas: Export chip_to_vas_id() powerpc/64s/slice: Use addr limit when computing slice mask |
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Michael Ellerman | 2621e945fb |
powerpc/kexec: Fix kexec/kdump in P9 guest kernels
The code that cleans up the IAMR/AMOR before kexec'ing failed to
remember that when we're running as a guest AMOR is not writable, it's
hypervisor privileged.
They symptom is that the kexec stops before entering purgatory and
nothing else is seen on the console. If you examine the state of the
system all threads will be in the 0x700 program check handler.
Fix it by making the write to AMOR dependent on HV mode.
Fixes:
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Mahesh Salgaonkar | a3961f824c |
powerpc/powernv: Fix kexec crashes caused by tlbie tracing
Rebooting into a new kernel with kexec fails in trace_tlbie() which is
called from native_hpte_clear(). This happens if the running kernel
has CONFIG_LOCKDEP enabled. With lockdep enabled, the tracepoints
always execute few RCU checks regardless of whether tracing is on or
off. We are already in the last phase of kexec sequence in real mode
with HILE_BE set. At this point the RCU check ends up in
RCU_LOCKDEP_WARN and causes kexec to fail.
Fix this by not calling trace_tlbie() from native_hpte_clear().
mpe: It's not safe to call trace points at this point in the kexec
path, even if we could avoid the RCU checks/warnings. The only
solution is to not call them.
Fixes:
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Paul Mackerras | ded13fc11b |
KVM: PPC: Book3S HV: Fix migration and HPT resizing of HPT guests on radix hosts
This fixes two errors that prevent a guest using the HPT MMU from successfully migrating to a POWER9 host in radix MMU mode, or resizing its HPT when running on a radix host. The first bug was that commit |
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Michael Ellerman | 4d6c51b107 |
powerpc/64s: Fix Power9 DD2.1 logic in DT CPU features
I got the logic wrong in the DT CPU features code when I added the
Power9 DD2.1 feature. We should be setting the bit if we detect a
DD2.1, not clearing it if we detect a DD2.0.
This code isn't actually exercised at the moment so nothing is
actually broken.
Fixes:
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Madhavan Srinivasan | 73ce9aec65 |
powerpc/perf: Fix IMC_MAX_PMU macro
IMC_MAX_PMU is used for static storage (per_nest_pmu_arr) which holds nest pmu information. Current value for the macro is 32 based on the initial number of nest pmu units supported by the nest microcode. But going forward, microcode could support more nest units. Instead of static storage, patch to fix the code to dynamically allocate an array based on the number of nest imc units found in the device tree. Fixes:8f95faaac56c1 ('powerpc/powernv: Detect and create IMC device') Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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Madhavan Srinivasan | de34787f10 |
powerpc/perf: Fix pmu_count to count only nest imc pmus
"pmu_count" in opal_imc_counters_probe() is intended to hold the number of successful nest imc pmu registerations. But current code also counts other imc units like core_imc and thread_imc. Patch add a check to count only nest imc pmus. Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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Christophe Leroy | 252eb55816 |
powerpc: Fix boot on BOOK3S_32 with CONFIG_STRICT_KERNEL_RWX
On powerpc32, patch_instruction() is called by apply_feature_fixups()
which is called from early_init()
There is the following note in front of early_init():
* Note that the kernel may be running at an address which is different
* from the address that it was linked at, so we must use RELOC/PTRRELOC
* to access static data (including strings). -- paulus
Therefore, slab_is_available() cannot be called yet, and
text_poke_area must be addressed with PTRRELOC()
Fixes:
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Michael Ellerman | f3f1dfd600 |
powerpc/perf/imc: Use cpu_to_node() not topology_physical_package_id()
init_imc_pmu() uses topology_physical_package_id() to detect the
node id of the processor it is on to get local memory, but that's
wrong, and can lead to crashes. Fix it to use cpu_to_node().
Fixes:
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Kees Cook | 86cb30ec07 |
treewide: setup_timer() -> timer_setup() (2 field)
This converts all remaining setup_timer() calls that use a nested field to reach a struct timer_list. Coccinelle does not have an easy way to match multiple fields, so a new script is needed to change the matches of "&_E->_timer" into "&_E->_field1._timer" in all the rules. spatch --very-quiet --all-includes --include-headers \ -I ./arch/x86/include -I ./arch/x86/include/generated \ -I ./include -I ./arch/x86/include/uapi \ -I ./arch/x86/include/generated/uapi -I ./include/uapi \ -I ./include/generated/uapi --include ./include/linux/kconfig.h \ --dir . \ --cocci-file ~/src/data/timer_setup-2fields.cocci @fix_address_of depends@ expression e; @@ setup_timer( -&(e) +&e , ...) // Update any raw setup_timer() usages that have a NULL callback, but // would otherwise match change_timer_function_usage, since the latter // will update all function assignments done in the face of a NULL // function initialization in setup_timer(). @change_timer_function_usage_NULL@ expression _E; identifier _field1; identifier _timer; type _cast_data; @@ ( -setup_timer(&_E->_field1._timer, NULL, _E); +timer_setup(&_E->_field1._timer, NULL, 0); | -setup_timer(&_E->_field1._timer, NULL, (_cast_data)_E); +timer_setup(&_E->_field1._timer, NULL, 0); | -setup_timer(&_E._field1._timer, NULL, &_E); +timer_setup(&_E._field1._timer, NULL, 0); | -setup_timer(&_E._field1._timer, NULL, (_cast_data)&_E); +timer_setup(&_E._field1._timer, NULL, 0); ) @change_timer_function_usage@ expression _E; identifier _field1; identifier _timer; struct timer_list _stl; identifier _callback; type _cast_func, _cast_data; @@ ( -setup_timer(&_E->_field1._timer, _callback, _E); +timer_setup(&_E->_field1._timer, _callback, 0); | -setup_timer(&_E->_field1._timer, &_callback, _E); +timer_setup(&_E->_field1._timer, _callback, 0); | -setup_timer(&_E->_field1._timer, _callback, (_cast_data)_E); +timer_setup(&_E->_field1._timer, _callback, 0); | -setup_timer(&_E->_field1._timer, &_callback, (_cast_data)_E); +timer_setup(&_E->_field1._timer, _callback, 0); | -setup_timer(&_E->_field1._timer, (_cast_func)_callback, _E); +timer_setup(&_E->_field1._timer, _callback, 0); | -setup_timer(&_E->_field1._timer, (_cast_func)&_callback, _E); +timer_setup(&_E->_field1._timer, _callback, 0); | -setup_timer(&_E->_field1._timer, (_cast_func)_callback, (_cast_data)_E); +timer_setup(&_E->_field1._timer, _callback, 0); | -setup_timer(&_E->_field1._timer, (_cast_func)&_callback, (_cast_data)_E); +timer_setup(&_E->_field1._timer, _callback, 0); | -setup_timer(&_E._field1._timer, _callback, (_cast_data)_E); +timer_setup(&_E._field1._timer, _callback, 0); | -setup_timer(&_E._field1._timer, _callback, (_cast_data)&_E); +timer_setup(&_E._field1._timer, _callback, 0); | -setup_timer(&_E._field1._timer, &_callback, (_cast_data)_E); +timer_setup(&_E._field1._timer, _callback, 0); | -setup_timer(&_E._field1._timer, &_callback, (_cast_data)&_E); +timer_setup(&_E._field1._timer, _callback, 0); | -setup_timer(&_E._field1._timer, (_cast_func)_callback, (_cast_data)_E); +timer_setup(&_E._field1._timer, _callback, 0); | -setup_timer(&_E._field1._timer, (_cast_func)_callback, (_cast_data)&_E); +timer_setup(&_E._field1._timer, _callback, 0); | -setup_timer(&_E._field1._timer, (_cast_func)&_callback, (_cast_data)_E); +timer_setup(&_E._field1._timer, _callback, 0); | -setup_timer(&_E._field1._timer, (_cast_func)&_callback, (_cast_data)&_E); +timer_setup(&_E._field1._timer, _callback, 0); | _E->_field1._timer@_stl.function = _callback; | _E->_field1._timer@_stl.function = &_callback; | _E->_field1._timer@_stl.function = (_cast_func)_callback; | _E->_field1._timer@_stl.function = (_cast_func)&_callback; | _E._field1._timer@_stl.function = _callback; | _E._field1._timer@_stl.function = &_callback; | _E._field1._timer@_stl.function = (_cast_func)_callback; | _E._field1._timer@_stl.function = (_cast_func)&_callback; ) // callback(unsigned long arg) @change_callback_handle_cast depends on change_timer_function_usage@ identifier change_timer_function_usage._callback; identifier change_timer_function_usage._field1; identifier change_timer_function_usage._timer; type _origtype; identifier _origarg; type _handletype; identifier _handle; @@ void _callback( -_origtype _origarg +struct timer_list *t ) { ( ... when != _origarg _handletype *_handle = -(_handletype *)_origarg; +from_timer(_handle, t, _field1._timer); ... when != _origarg | ... when != _origarg _handletype *_handle = -(void *)_origarg; +from_timer(_handle, t, _field1._timer); ... when != _origarg | ... when != _origarg _handletype *_handle; ... when != _handle _handle = -(_handletype *)_origarg; +from_timer(_handle, t, _field1._timer); ... when != _origarg | ... when != _origarg _handletype *_handle; ... when != _handle _handle = -(void *)_origarg; +from_timer(_handle, t, _field1._timer); ... when != _origarg ) } // callback(unsigned long arg) without existing variable @change_callback_handle_cast_no_arg depends on change_timer_function_usage && !change_callback_handle_cast@ identifier change_timer_function_usage._callback; identifier change_timer_function_usage._field1; identifier change_timer_function_usage._timer; type _origtype; identifier _origarg; type _handletype; @@ void _callback( -_origtype _origarg +struct timer_list *t ) { + _handletype *_origarg = from_timer(_origarg, t, _field1._timer); + ... when != _origarg - (_handletype *)_origarg + _origarg ... when != _origarg } // Avoid already converted callbacks. @match_callback_converted depends on change_timer_function_usage && !change_callback_handle_cast && !change_callback_handle_cast_no_arg@ identifier change_timer_function_usage._callback; identifier t; @@ void _callback(struct timer_list *t) { ... } // callback(struct something *handle) @change_callback_handle_arg depends on change_timer_function_usage && !match_callback_converted && !change_callback_handle_cast && !change_callback_handle_cast_no_arg@ identifier change_timer_function_usage._callback; identifier change_timer_function_usage._field1; identifier change_timer_function_usage._timer; type _handletype; identifier _handle; @@ void _callback( -_handletype *_handle +struct timer_list *t ) { + _handletype *_handle = from_timer(_handle, t, _field1._timer); ... } // If change_callback_handle_arg ran on an empty function, remove // the added handler. @unchange_callback_handle_arg depends on change_timer_function_usage && change_callback_handle_arg@ identifier change_timer_function_usage._callback; identifier change_timer_function_usage._field1; identifier change_timer_function_usage._timer; type _handletype; identifier _handle; identifier t; @@ void _callback(struct timer_list *t) { - _handletype *_handle = from_timer(_handle, t, _field1._timer); } // We only want to refactor the setup_timer() data argument if we've found // the matching callback. This undoes changes in change_timer_function_usage. @unchange_timer_function_usage depends on change_timer_function_usage && !change_callback_handle_cast && !change_callback_handle_cast_no_arg && !change_callback_handle_arg@ expression change_timer_function_usage._E; identifier change_timer_function_usage._field1; identifier change_timer_function_usage._timer; identifier change_timer_function_usage._callback; type change_timer_function_usage._cast_data; @@ ( -timer_setup(&_E->_field1._timer, _callback, 0); +setup_timer(&_E->_field1._timer, _callback, (_cast_data)_E); | -timer_setup(&_E._field1._timer, _callback, 0); +setup_timer(&_E._field1._timer, _callback, (_cast_data)&_E); ) // If we fixed a callback from a .function assignment, fix the // assignment cast now. @change_timer_function_assignment depends on change_timer_function_usage && (change_callback_handle_cast || change_callback_handle_cast_no_arg || change_callback_handle_arg)@ expression change_timer_function_usage._E; identifier change_timer_function_usage._field1; identifier change_timer_function_usage._timer; identifier change_timer_function_usage._callback; type _cast_func; typedef TIMER_FUNC_TYPE; @@ ( _E->_field1._timer.function = -_callback +(TIMER_FUNC_TYPE)_callback ; | _E->_field1._timer.function = -&_callback +(TIMER_FUNC_TYPE)_callback ; | _E->_field1._timer.function = -(_cast_func)_callback; +(TIMER_FUNC_TYPE)_callback ; | _E->_field1._timer.function = -(_cast_func)&_callback +(TIMER_FUNC_TYPE)_callback ; | _E._field1._timer.function = -_callback +(TIMER_FUNC_TYPE)_callback ; | _E._field1._timer.function = -&_callback; +(TIMER_FUNC_TYPE)_callback ; | _E._field1._timer.function = -(_cast_func)_callback +(TIMER_FUNC_TYPE)_callback ; | _E._field1._timer.function = -(_cast_func)&_callback +(TIMER_FUNC_TYPE)_callback ; ) // Sometimes timer functions are called directly. Replace matched args. @change_timer_function_calls depends on change_timer_function_usage && (change_callback_handle_cast || change_callback_handle_cast_no_arg || change_callback_handle_arg)@ expression _E; identifier change_timer_function_usage._field1; identifier change_timer_function_usage._timer; identifier change_timer_function_usage._callback; type _cast_data; @@ _callback( ( -(_cast_data)_E +&_E->_field1._timer | -(_cast_data)&_E +&_E._field1._timer | -_E +&_E->_field1._timer ) ) // If a timer has been configured without a data argument, it can be // converted without regard to the callback argument, since it is unused. @match_timer_function_unused_data@ expression _E; identifier _field1; identifier _timer; identifier _callback; @@ ( -setup_timer(&_E->_field1._timer, _callback, 0); +timer_setup(&_E->_field1._timer, _callback, 0); | -setup_timer(&_E->_field1._timer, _callback, 0L); +timer_setup(&_E->_field1._timer, _callback, 0); | -setup_timer(&_E->_field1._timer, _callback, 0UL); +timer_setup(&_E->_field1._timer, _callback, 0); | -setup_timer(&_E._field1._timer, _callback, 0); +timer_setup(&_E._field1._timer, _callback, 0); | -setup_timer(&_E._field1._timer, _callback, 0L); +timer_setup(&_E._field1._timer, _callback, 0); | -setup_timer(&_E._field1._timer, _callback, 0UL); +timer_setup(&_E._field1._timer, _callback, 0); | -setup_timer(&_field1._timer, _callback, 0); +timer_setup(&_field1._timer, _callback, 0); | -setup_timer(&_field1._timer, _callback, 0L); +timer_setup(&_field1._timer, _callback, 0); | -setup_timer(&_field1._timer, _callback, 0UL); +timer_setup(&_field1._timer, _callback, 0); | -setup_timer(_field1._timer, _callback, 0); +timer_setup(_field1._timer, _callback, 0); | -setup_timer(_field1._timer, _callback, 0L); +timer_setup(_field1._timer, _callback, 0); | -setup_timer(_field1._timer, _callback, 0UL); +timer_setup(_field1._timer, _callback, 0); ) @change_callback_unused_data depends on match_timer_function_unused_data@ identifier match_timer_function_unused_data._callback; type _origtype; identifier _origarg; @@ void _callback( -_origtype _origarg +struct timer_list *unused ) { ... when != _origarg } Signed-off-by: Kees Cook <keescook@chromium.org> |
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Kees Cook | e99e88a9d2 |
treewide: setup_timer() -> timer_setup()
This converts all remaining cases of the old setup_timer() API into using timer_setup(), where the callback argument is the structure already holding the struct timer_list. These should have no behavioral changes, since they just change which pointer is passed into the callback with the same available pointers after conversion. It handles the following examples, in addition to some other variations. Casting from unsigned long: void my_callback(unsigned long data) { struct something *ptr = (struct something *)data; ... } ... setup_timer(&ptr->my_timer, my_callback, ptr); and forced object casts: void my_callback(struct something *ptr) { ... } ... setup_timer(&ptr->my_timer, my_callback, (unsigned long)ptr); become: void my_callback(struct timer_list *t) { struct something *ptr = from_timer(ptr, t, my_timer); ... } ... timer_setup(&ptr->my_timer, my_callback, 0); Direct function assignments: void my_callback(unsigned long data) { struct something *ptr = (struct something *)data; ... } ... ptr->my_timer.function = my_callback; have a temporary cast added, along with converting the args: void my_callback(struct timer_list *t) { struct something *ptr = from_timer(ptr, t, my_timer); ... } ... ptr->my_timer.function = (TIMER_FUNC_TYPE)my_callback; And finally, callbacks without a data assignment: void my_callback(unsigned long data) { ... } ... setup_timer(&ptr->my_timer, my_callback, 0); have their argument renamed to verify they're unused during conversion: void my_callback(struct timer_list *unused) { ... } ... timer_setup(&ptr->my_timer, my_callback, 0); The conversion is done with the following Coccinelle script: spatch --very-quiet --all-includes --include-headers \ -I ./arch/x86/include -I ./arch/x86/include/generated \ -I ./include -I ./arch/x86/include/uapi \ -I ./arch/x86/include/generated/uapi -I ./include/uapi \ -I ./include/generated/uapi --include ./include/linux/kconfig.h \ --dir . \ --cocci-file ~/src/data/timer_setup.cocci @fix_address_of@ expression e; @@ setup_timer( -&(e) +&e , ...) // Update any raw setup_timer() usages that have a NULL callback, but // would otherwise match change_timer_function_usage, since the latter // will update all function assignments done in the face of a NULL // function initialization in setup_timer(). @change_timer_function_usage_NULL@ expression _E; identifier _timer; type _cast_data; @@ ( -setup_timer(&_E->_timer, NULL, _E); +timer_setup(&_E->_timer, NULL, 0); | -setup_timer(&_E->_timer, NULL, (_cast_data)_E); +timer_setup(&_E->_timer, NULL, 0); | -setup_timer(&_E._timer, NULL, &_E); +timer_setup(&_E._timer, NULL, 0); | -setup_timer(&_E._timer, NULL, (_cast_data)&_E); +timer_setup(&_E._timer, NULL, 0); ) @change_timer_function_usage@ expression _E; identifier _timer; struct timer_list _stl; identifier _callback; type _cast_func, _cast_data; @@ ( -setup_timer(&_E->_timer, _callback, _E); +timer_setup(&_E->_timer, _callback, 0); | -setup_timer(&_E->_timer, &_callback, _E); +timer_setup(&_E->_timer, _callback, 0); | -setup_timer(&_E->_timer, _callback, (_cast_data)_E); +timer_setup(&_E->_timer, _callback, 0); | -setup_timer(&_E->_timer, &_callback, (_cast_data)_E); +timer_setup(&_E->_timer, _callback, 0); | -setup_timer(&_E->_timer, (_cast_func)_callback, _E); +timer_setup(&_E->_timer, _callback, 0); | -setup_timer(&_E->_timer, (_cast_func)&_callback, _E); +timer_setup(&_E->_timer, _callback, 0); | -setup_timer(&_E->_timer, (_cast_func)_callback, (_cast_data)_E); +timer_setup(&_E->_timer, _callback, 0); | -setup_timer(&_E->_timer, (_cast_func)&_callback, (_cast_data)_E); +timer_setup(&_E->_timer, _callback, 0); | -setup_timer(&_E._timer, _callback, (_cast_data)_E); +timer_setup(&_E._timer, _callback, 0); | -setup_timer(&_E._timer, _callback, (_cast_data)&_E); +timer_setup(&_E._timer, _callback, 0); | -setup_timer(&_E._timer, &_callback, (_cast_data)_E); +timer_setup(&_E._timer, _callback, 0); | -setup_timer(&_E._timer, &_callback, (_cast_data)&_E); +timer_setup(&_E._timer, _callback, 0); | -setup_timer(&_E._timer, (_cast_func)_callback, (_cast_data)_E); +timer_setup(&_E._timer, _callback, 0); | -setup_timer(&_E._timer, (_cast_func)_callback, (_cast_data)&_E); +timer_setup(&_E._timer, _callback, 0); | -setup_timer(&_E._timer, (_cast_func)&_callback, (_cast_data)_E); +timer_setup(&_E._timer, _callback, 0); | -setup_timer(&_E._timer, (_cast_func)&_callback, (_cast_data)&_E); +timer_setup(&_E._timer, _callback, 0); | _E->_timer@_stl.function = _callback; | _E->_timer@_stl.function = &_callback; | _E->_timer@_stl.function = (_cast_func)_callback; | _E->_timer@_stl.function = (_cast_func)&_callback; | _E._timer@_stl.function = _callback; | _E._timer@_stl.function = &_callback; | _E._timer@_stl.function = (_cast_func)_callback; | _E._timer@_stl.function = (_cast_func)&_callback; ) // callback(unsigned long arg) @change_callback_handle_cast depends on change_timer_function_usage@ identifier change_timer_function_usage._callback; identifier change_timer_function_usage._timer; type _origtype; identifier _origarg; type _handletype; identifier _handle; @@ void _callback( -_origtype _origarg +struct timer_list *t ) { ( ... when != _origarg _handletype *_handle = -(_handletype *)_origarg; +from_timer(_handle, t, _timer); ... when != _origarg | ... when != _origarg _handletype *_handle = -(void *)_origarg; +from_timer(_handle, t, _timer); ... when != _origarg | ... when != _origarg _handletype *_handle; ... when != _handle _handle = -(_handletype *)_origarg; +from_timer(_handle, t, _timer); ... when != _origarg | ... when != _origarg _handletype *_handle; ... when != _handle _handle = -(void *)_origarg; +from_timer(_handle, t, _timer); ... when != _origarg ) } // callback(unsigned long arg) without existing variable @change_callback_handle_cast_no_arg depends on change_timer_function_usage && !change_callback_handle_cast@ identifier change_timer_function_usage._callback; identifier change_timer_function_usage._timer; type _origtype; identifier _origarg; type _handletype; @@ void _callback( -_origtype _origarg +struct timer_list *t ) { + _handletype *_origarg = from_timer(_origarg, t, _timer); + ... when != _origarg - (_handletype *)_origarg + _origarg ... when != _origarg } // Avoid already converted callbacks. @match_callback_converted depends on change_timer_function_usage && !change_callback_handle_cast && !change_callback_handle_cast_no_arg@ identifier change_timer_function_usage._callback; identifier t; @@ void _callback(struct timer_list *t) { ... } // callback(struct something *handle) @change_callback_handle_arg depends on change_timer_function_usage && !match_callback_converted && !change_callback_handle_cast && !change_callback_handle_cast_no_arg@ identifier change_timer_function_usage._callback; identifier change_timer_function_usage._timer; type _handletype; identifier _handle; @@ void _callback( -_handletype *_handle +struct timer_list *t ) { + _handletype *_handle = from_timer(_handle, t, _timer); ... } // If change_callback_handle_arg ran on an empty function, remove // the added handler. @unchange_callback_handle_arg depends on change_timer_function_usage && change_callback_handle_arg@ identifier change_timer_function_usage._callback; identifier change_timer_function_usage._timer; type _handletype; identifier _handle; identifier t; @@ void _callback(struct timer_list *t) { - _handletype *_handle = from_timer(_handle, t, _timer); } // We only want to refactor the setup_timer() data argument if we've found // the matching callback. This undoes changes in change_timer_function_usage. @unchange_timer_function_usage depends on change_timer_function_usage && !change_callback_handle_cast && !change_callback_handle_cast_no_arg && !change_callback_handle_arg@ expression change_timer_function_usage._E; identifier change_timer_function_usage._timer; identifier change_timer_function_usage._callback; type change_timer_function_usage._cast_data; @@ ( -timer_setup(&_E->_timer, _callback, 0); +setup_timer(&_E->_timer, _callback, (_cast_data)_E); | -timer_setup(&_E._timer, _callback, 0); +setup_timer(&_E._timer, _callback, (_cast_data)&_E); ) // If we fixed a callback from a .function assignment, fix the // assignment cast now. @change_timer_function_assignment depends on change_timer_function_usage && (change_callback_handle_cast || change_callback_handle_cast_no_arg || change_callback_handle_arg)@ expression change_timer_function_usage._E; identifier change_timer_function_usage._timer; identifier change_timer_function_usage._callback; type _cast_func; typedef TIMER_FUNC_TYPE; @@ ( _E->_timer.function = -_callback +(TIMER_FUNC_TYPE)_callback ; | _E->_timer.function = -&_callback +(TIMER_FUNC_TYPE)_callback ; | _E->_timer.function = -(_cast_func)_callback; +(TIMER_FUNC_TYPE)_callback ; | _E->_timer.function = -(_cast_func)&_callback +(TIMER_FUNC_TYPE)_callback ; | _E._timer.function = -_callback +(TIMER_FUNC_TYPE)_callback ; | _E._timer.function = -&_callback; +(TIMER_FUNC_TYPE)_callback ; | _E._timer.function = -(_cast_func)_callback +(TIMER_FUNC_TYPE)_callback ; | _E._timer.function = -(_cast_func)&_callback +(TIMER_FUNC_TYPE)_callback ; ) // Sometimes timer functions are called directly. Replace matched args. @change_timer_function_calls depends on change_timer_function_usage && (change_callback_handle_cast || change_callback_handle_cast_no_arg || change_callback_handle_arg)@ expression _E; identifier change_timer_function_usage._timer; identifier change_timer_function_usage._callback; type _cast_data; @@ _callback( ( -(_cast_data)_E +&_E->_timer | -(_cast_data)&_E +&_E._timer | -_E +&_E->_timer ) ) // If a timer has been configured without a data argument, it can be // converted without regard to the callback argument, since it is unused. @match_timer_function_unused_data@ expression _E; identifier _timer; identifier _callback; @@ ( -setup_timer(&_E->_timer, _callback, 0); +timer_setup(&_E->_timer, _callback, 0); | -setup_timer(&_E->_timer, _callback, 0L); +timer_setup(&_E->_timer, _callback, 0); | -setup_timer(&_E->_timer, _callback, 0UL); +timer_setup(&_E->_timer, _callback, 0); | -setup_timer(&_E._timer, _callback, 0); +timer_setup(&_E._timer, _callback, 0); | -setup_timer(&_E._timer, _callback, 0L); +timer_setup(&_E._timer, _callback, 0); | -setup_timer(&_E._timer, _callback, 0UL); +timer_setup(&_E._timer, _callback, 0); | -setup_timer(&_timer, _callback, 0); +timer_setup(&_timer, _callback, 0); | -setup_timer(&_timer, _callback, 0L); +timer_setup(&_timer, _callback, 0); | -setup_timer(&_timer, _callback, 0UL); +timer_setup(&_timer, _callback, 0); | -setup_timer(_timer, _callback, 0); +timer_setup(_timer, _callback, 0); | -setup_timer(_timer, _callback, 0L); +timer_setup(_timer, _callback, 0); | -setup_timer(_timer, _callback, 0UL); +timer_setup(_timer, _callback, 0); ) @change_callback_unused_data depends on match_timer_function_unused_data@ identifier match_timer_function_unused_data._callback; type _origtype; identifier _origarg; @@ void _callback( -_origtype _origarg +struct timer_list *unused ) { ... when != _origarg } Signed-off-by: Kees Cook <keescook@chromium.org> |
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Sukadev Bhattiprolu | 62b49c4210 |
powerpc/vas: Export chip_to_vas_id()
Export the symbol chip_to_vas_id() to fix a build failure when
CONFIG_CRYPTO_DEV_NX_COMPRESS_POWERNV=m.
Fixes:
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Aneesh Kumar K.V | 7a06c66835 |
powerpc/64s/slice: Use addr limit when computing slice mask
While computing slice mask for the free area we need make sure we only
search in the addr limit applicable for this mmap. We update the
slb_addr_limit after we request for a mmap above 128TB. But the
following mmap request with hint addr below 128TB should still limit
its search to below 128TB. ie. we should not use slb_addr_limit to
compute slice mask in this case. Instead, we should derive high addr
limit based on the mmap hint addr value.
Fixes:
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Linus Torvalds | fa7f578076 |
Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton: - a bit more MM - procfs updates - dynamic-debug fixes - lib/ updates - checkpatch - epoll - nilfs2 - signals - rapidio - PID management cleanup and optimization - kcov updates - sysvipc updates - quite a few misc things all over the place * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (94 commits) EXPERT Kconfig menu: fix broken EXPERT menu include/asm-generic/topology.h: remove unused parent_node() macro arch/tile/include/asm/topology.h: remove unused parent_node() macro arch/sparc/include/asm/topology_64.h: remove unused parent_node() macro arch/sh/include/asm/topology.h: remove unused parent_node() macro arch/ia64/include/asm/topology.h: remove unused parent_node() macro drivers/pcmcia/sa1111_badge4.c: avoid unused function warning mm: add infrastructure for get_user_pages_fast() benchmarking sysvipc: make get_maxid O(1) again sysvipc: properly name ipc_addid() limit parameter sysvipc: duplicate lock comments wrt ipc_addid() sysvipc: unteach ids->next_id for !CHECKPOINT_RESTORE initramfs: use time64_t timestamps drivers/watchdog: make use of devm_register_reboot_notifier() kernel/reboot.c: add devm_register_reboot_notifier() kcov: update documentation Makefile: support flag -fsanitizer-coverage=trace-cmp kcov: support comparison operands collection kcov: remove pointless current != NULL check kernel/panic.c: add TAINT_AUX ... |
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Gargi Sharma | 95846ecf9d |
pid: replace pid bitmap implementation with IDR API
Patch series "Replacing PID bitmap implementation with IDR API", v4. This series replaces kernel bitmap implementation of PID allocation with IDR API. These patches are written to simplify the kernel by replacing custom code with calls to generic code. The following are the stats for pid and pid_namespace object files before and after the replacement. There is a noteworthy change between the IDR and bitmap implementation. Before text data bss dec hex filename 8447 3894 64 12405 3075 kernel/pid.o After text data bss dec hex filename 3397 304 0 3701 e75 kernel/pid.o Before text data bss dec hex filename 5692 1842 192 7726 1e2e kernel/pid_namespace.o After text data bss dec hex filename 2854 216 16 3086 c0e kernel/pid_namespace.o The following are the stats for ps, pstree and calling readdir on /proc for 10,000 processes. ps: With IDR API With bitmap real 0m1.479s 0m2.319s user 0m0.070s 0m0.060s sys 0m0.289s 0m0.516s pstree: With IDR API With bitmap real 0m1.024s 0m1.794s user 0m0.348s 0m0.612s sys 0m0.184s 0m0.264s proc: With IDR API With bitmap real 0m0.059s 0m0.074s user 0m0.000s 0m0.004s sys 0m0.016s 0m0.016s This patch (of 2): Replace the current bitmap implementation for Process ID allocation. Functions that are no longer required, for example, free_pidmap(), alloc_pidmap(), etc. are removed. The rest of the functions are modified to use the IDR API. The change was made to make the PID allocation less complex by replacing custom code with calls to generic API. [gs051095@gmail.com: v6] Link: http://lkml.kernel.org/r/1507760379-21662-2-git-send-email-gs051095@gmail.com [avagin@openvz.org: restore the old behaviour of the ns_last_pid sysctl] Link: http://lkml.kernel.org/r/20171106183144.16368-1-avagin@openvz.org Link: http://lkml.kernel.org/r/1507583624-22146-2-git-send-email-gs051095@gmail.com Signed-off-by: Gargi Sharma <gs051095@gmail.com> Reviewed-by: Rik van Riel <riel@redhat.com> Acked-by: Oleg Nesterov <oleg@redhat.com> Cc: Julia Lawall <julia.lawall@lip6.fr> Cc: Ingo Molnar <mingo@kernel.org> Cc: Pavel Tatashin <pasha.tatashin@oracle.com> Cc: Kirill Tkhai <ktkhai@virtuozzo.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds | 5a3e0b196b |
File locking related changes for v4.15
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Linus Torvalds | 93f30c73ec |
Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull compat and uaccess updates from Al Viro: - {get,put}_compat_sigset() series - assorted compat ioctl stuff - more set_fs() elimination - a few more timespec64 conversions - several removals of pointless access_ok() in places where it was followed only by non-__ variants of primitives * 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (24 commits) coredump: call do_unlinkat directly instead of sys_unlink fs: expose do_unlinkat for built-in callers ext4: take handling of EXT4_IOC_GROUP_ADD into a helper, get rid of set_fs() ipmi: get rid of pointless access_ok() pi433: sanitize ioctl cxlflash: get rid of pointless access_ok() mtdchar: get rid of pointless access_ok() r128: switch compat ioctls to drm_ioctl_kernel() selection: get rid of field-by-field copyin VT_RESIZEX: get rid of field-by-field copyin i2c compat ioctls: move to ->compat_ioctl() sched_rr_get_interval(): move compat to native, get rid of set_fs() mips: switch to {get,put}_compat_sigset() sparc: switch to {get,put}_compat_sigset() s390: switch to {get,put}_compat_sigset() ppc: switch to {get,put}_compat_sigset() parisc: switch to {get,put}_compat_sigset() get_compat_sigset() get rid of {get,put}_compat_itimerspec() io_getevents: Use timespec64 to represent timeouts ... |
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Linus Torvalds | 974aa5630b |
First batch of KVM changes for 4.15
Common: - Python 3 support in kvm_stat - Accounting of slabs to kmemcg ARM: - Optimized arch timer handling for KVM/ARM - Improvements to the VGIC ITS code and introduction of an ITS reset ioctl - Unification of the 32-bit fault injection logic - More exact external abort matching logic PPC: - Support for running hashed page table (HPT) MMU mode on a host that is using the radix MMU mode; single threaded mode on POWER 9 is added as a pre-requisite - Resolution of merge conflicts with the last second 4.14 HPT fixes - Fixes and cleanups s390: - Some initial preparation patches for exitless interrupts and crypto - New capability for AIS migration - Fixes x86: - Improved emulation of LAPIC timer mode changes, MCi_STATUS MSRs, and after-reset state - Refined dependencies for VMX features - Fixes for nested SMI injection - A lot of cleanups -----BEGIN PGP SIGNATURE----- iQEcBAABCAAGBQJaDayXAAoJEED/6hsPKofo/3UH/3HvlcHt+ADTkCU1/iiKAs+i 0zngIOXIxgHDnV0ww6bV+Znww0BzTYgKCAXX76z603jdpDwG/pzQQcbLDF5ZoJnD sQtF10gZinWaRsHlfbLqjrHGL2pGDHO1UKBKLJ0bAIyORPZBxs7i+VmrY/blnr9c 0wsybJ8RbvwAxjsDL5jeX/z4NehPupmKUc4Lf0eZdSHwVOf9sjn+MP6jJ0r2JcIb D+zddPBiLStzN97t4gZpQsrlj3LKrDS+6hY+1TjSvlh+yHKFVFh58VhLm4DuDeb5 bYOAlWJ/gAWEzfvr5Ld+Nd7SqWWn/14logPkQ4gcU4BI/neAOzk4c6hJfCHl1nk= =593n -----END PGP SIGNATURE----- Merge tag 'kvm-4.15-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull KVM updates from Radim Krčmář: "First batch of KVM changes for 4.15 Common: - Python 3 support in kvm_stat - Accounting of slabs to kmemcg ARM: - Optimized arch timer handling for KVM/ARM - Improvements to the VGIC ITS code and introduction of an ITS reset ioctl - Unification of the 32-bit fault injection logic - More exact external abort matching logic PPC: - Support for running hashed page table (HPT) MMU mode on a host that is using the radix MMU mode; single threaded mode on POWER 9 is added as a pre-requisite - Resolution of merge conflicts with the last second 4.14 HPT fixes - Fixes and cleanups s390: - Some initial preparation patches for exitless interrupts and crypto - New capability for AIS migration - Fixes x86: - Improved emulation of LAPIC timer mode changes, MCi_STATUS MSRs, and after-reset state - Refined dependencies for VMX features - Fixes for nested SMI injection - A lot of cleanups" * tag 'kvm-4.15-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (89 commits) KVM: s390: provide a capability for AIS state migration KVM: s390: clear_io_irq() requests are not expected for adapter interrupts KVM: s390: abstract conversion between isc and enum irq_types KVM: s390: vsie: use common code functions for pinning KVM: s390: SIE considerations for AP Queue virtualization KVM: s390: document memory ordering for kvm_s390_vcpu_wakeup KVM: PPC: Book3S HV: Cosmetic post-merge cleanups KVM: arm/arm64: fix the incompatible matching for external abort KVM: arm/arm64: Unify 32bit fault injection KVM: arm/arm64: vgic-its: Implement KVM_DEV_ARM_ITS_CTRL_RESET KVM: arm/arm64: Document KVM_DEV_ARM_ITS_CTRL_RESET KVM: arm/arm64: vgic-its: Free caches when GITS_BASER Valid bit is cleared KVM: arm/arm64: vgic-its: New helper functions to free the caches KVM: arm/arm64: vgic-its: Remove kvm_its_unmap_device arm/arm64: KVM: Load the timer state when enabling the timer KVM: arm/arm64: Rework kvm_timer_should_fire KVM: arm/arm64: Get rid of kvm_timer_flush_hwstate KVM: arm/arm64: Avoid phys timer emulation in vcpu entry/exit KVM: arm/arm64: Move phys_timer_emulate function KVM: arm/arm64: Use kvm_arm_timer_set/get_reg for guest register traps ... |
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Linus Torvalds | 5b0e2cb020 |
powerpc updates for 4.15
Non-highlights: - Five fixes for the >128T address space handling, both to fix bugs in our implementation and to bring the semantics exactly into line with x86. Highlights: - Support for a new OPAL call on bare metal machines which gives us a true NMI (ie. is not masked by MSR[EE]=0) for debugging etc. - Support for Power9 DD2 in the CXL driver. - Improvements to machine check handling so that uncorrectable errors can be reported into the generic memory_failure() machinery. - Some fixes and improvements for VPHN, which is used under PowerVM to notify the Linux partition of topology changes. - Plumbing to enable TM (transactional memory) without suspend on some Power9 processors (PPC_FEATURE2_HTM_NO_SUSPEND). - Support for emulating vector loads form cache-inhibited memory, on some Power9 revisions. - Disable the fast-endian switch "syscall" by default (behind a CONFIG), we believe it has never had any users. - A major rework of the API drivers use when initiating and waiting for long running operations performed by OPAL firmware, and changes to the powernv_flash driver to use the new API. - Several fixes for the handling of FP/VMX/VSX while processes are using transactional memory. - Optimisations of TLB range flushes when using the radix MMU on Power9. - Improvements to the VAS facility used to access coprocessors on Power9, and related improvements to the way the NX crypto driver handles requests. - Implementation of PMEM_API and UACCESS_FLUSHCACHE for 64-bit. Thanks to: Alexey Kardashevskiy, Alistair Popple, Allen Pais, Andrew Donnellan, Aneesh Kumar K.V, Arnd Bergmann, Balbir Singh, Benjamin Herrenschmidt, Breno Leitao, Christophe Leroy, Christophe Lombard, Cyril Bur, Frederic Barrat, Gautham R. Shenoy, Geert Uytterhoeven, Guilherme G. Piccoli, Gustavo Romero, Haren Myneni, Joel Stanley, Kamalesh Babulal, Kautuk Consul, Markus Elfring, Masami Hiramatsu, Michael Bringmann, Michael Neuling, Michal Suchanek, Naveen N. Rao, Nicholas Piggin, Oliver O'Halloran, Paul Mackerras, Pedro Miraglia Franco de Carvalho, Philippe Bergheaud, Sandipan Das, Seth Forshee, Shriya, Stephen Rothwell, Stewart Smith, Sukadev Bhattiprolu, Tyrel Datwyler, Vaibhav Jain, Vaidyanathan Srinivasan, William A. Kennington III. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJaDXGuAAoJEFHr6jzI4aWAEqwP/0TA35KFAK6wqfkCf67z4q+O I+5piI4eDV4jdCakfoIN1JfjhQRULNePSoCHTccan30mu/bm30p69xtOLL2/h5xH Mhz/eDBAOo0lrT20nyZfYMW3FnM66wnNf++qJ0O+8L052r4WOB02J0k1uM1ST01D 5Lb5mUoxRLRzCgKRYAYWJifn+IFPUB9NMsvMTym94krAFlIjIzMEQXhDoln+jJMr QmY5f1BTA/fLfXobn0zwoc/C1oa2PUtxd+rxbwGrLoZ6G843mMqUi90SMr5ybhXp RzepnBTj4by3vOsnk/X1mANyaZfLsunp75FwnjHdPzKrAS/TuPp8D/iSxxE/PzEq cLwJFBnFXSgQMefDErXxhHSDz2dAg5r14rsTpDcq2Ko8TPV4rPsuSfmbd9Txekb0 yWHsjoJUBBMl2QcWqIHl+AlV8j1RklF6solcTBcGnH1CZJMfa05VKXV7xGEvOHa0 RJ+/xPyR9KjoB/SUp++9Vmx/M6SwQYFOJlr3Zpg9LNtR8WpoPYu1E6eO+u1Hhzny eJqaNstH+i+VdY9eqszkAsEBh8o9M/+b+7Wx7TetvU+v368CbXtgFYs9qy2oZjPF t9sY/BHaHZ8eZ7I00an77a0fVV5B1PVASUtIz5CqkwGpMvX6Z6W2K/XUUFI61kuu E06HS6Ht8UPJAzrAPUMl =Rq81 -----END PGP SIGNATURE----- Merge tag 'powerpc-4.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: "A bit of a small release, I suspect in part due to me travelling for KS. But my backlog of patches to review is smaller than usual, so I think in part folks just didn't send as much this cycle. Non-highlights: - Five fixes for the >128T address space handling, both to fix bugs in our implementation and to bring the semantics exactly into line with x86. Highlights: - Support for a new OPAL call on bare metal machines which gives us a true NMI (ie. is not masked by MSR[EE]=0) for debugging etc. - Support for Power9 DD2 in the CXL driver. - Improvements to machine check handling so that uncorrectable errors can be reported into the generic memory_failure() machinery. - Some fixes and improvements for VPHN, which is used under PowerVM to notify the Linux partition of topology changes. - Plumbing to enable TM (transactional memory) without suspend on some Power9 processors (PPC_FEATURE2_HTM_NO_SUSPEND). - Support for emulating vector loads form cache-inhibited memory, on some Power9 revisions. - Disable the fast-endian switch "syscall" by default (behind a CONFIG), we believe it has never had any users. - A major rework of the API drivers use when initiating and waiting for long running operations performed by OPAL firmware, and changes to the powernv_flash driver to use the new API. - Several fixes for the handling of FP/VMX/VSX while processes are using transactional memory. - Optimisations of TLB range flushes when using the radix MMU on Power9. - Improvements to the VAS facility used to access coprocessors on Power9, and related improvements to the way the NX crypto driver handles requests. - Implementation of PMEM_API and UACCESS_FLUSHCACHE for 64-bit. Thanks to: Alexey Kardashevskiy, Alistair Popple, Allen Pais, Andrew Donnellan, Aneesh Kumar K.V, Arnd Bergmann, Balbir Singh, Benjamin Herrenschmidt, Breno Leitao, Christophe Leroy, Christophe Lombard, Cyril Bur, Frederic Barrat, Gautham R. Shenoy, Geert Uytterhoeven, Guilherme G. Piccoli, Gustavo Romero, Haren Myneni, Joel Stanley, Kamalesh Babulal, Kautuk Consul, Markus Elfring, Masami Hiramatsu, Michael Bringmann, Michael Neuling, Michal Suchanek, Naveen N. Rao, Nicholas Piggin, Oliver O'Halloran, Paul Mackerras, Pedro Miraglia Franco de Carvalho, Philippe Bergheaud, Sandipan Das, Seth Forshee, Shriya, Stephen Rothwell, Stewart Smith, Sukadev Bhattiprolu, Tyrel Datwyler, Vaibhav Jain, Vaidyanathan Srinivasan, and William A. Kennington III" * tag 'powerpc-4.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (151 commits) powerpc/64s: Fix Power9 DD2.0 workarounds by adding DD2.1 feature powerpc/64s: Fix masking of SRR1 bits on instruction fault powerpc/64s: mm_context.addr_limit is only used on hash powerpc/64s/radix: Fix 128TB-512TB virtual address boundary case allocation powerpc/64s/hash: Allow MAP_FIXED allocations to cross 128TB boundary powerpc/64s/hash: Fix fork() with 512TB process address space powerpc/64s/hash: Fix 128TB-512TB virtual address boundary case allocation powerpc/64s/hash: Fix 512T hint detection to use >= 128T powerpc: Fix DABR match on hash based systems powerpc/signal: Properly handle return value from uprobe_deny_signal() powerpc/fadump: use kstrtoint to handle sysfs store powerpc/lib: Implement UACCESS_FLUSHCACHE API powerpc/lib: Implement PMEM API powerpc/powernv/npu: Don't explicitly flush nmmu tlb powerpc/powernv/npu: Use flush_all_mm() instead of flush_tlb_mm() powerpc/powernv/idle: Round up latency and residency values powerpc/kprobes: refactor kprobe_lookup_name for safer string operations powerpc/kprobes: Blacklist emulate_update_regs() from kprobes powerpc/kprobes: Do not disable interrupts for optprobes and kprobes_on_ftrace powerpc/kprobes: Disable preemption before invoking probe handler for optprobes ... |
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Linus Torvalds | e60e1ee606 |
main drm pull request for v4.15
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Core: - Atomic object lifetime fixes - Atomic iterator improvements - Sparse/smatch fixes - Legacy kms ioctls to be interruptible - EDID override improvements - fb/gem helper cleanups - Simple outreachy patches - Documentation improvements - Fix dma-buf rcu races - DRM mode object leasing for improving VR use cases. - vgaarb improvements for non-x86 platforms. New driver: - tve200: Faraday Technology TVE200 block. This "TV Encoder" encodes a ITU-T BT.656 stream and can be found in the StorLink SL3516 (later Cortina Systems CS3516) as well as the Grain Media GM8180. New bridges: - SiI9234 support New panels: - S6E63J0X03, OTM8009A, Seiko 43WVF1G, 7" rpi touch panel, Toshiba LT089AC19000, Innolux AT043TN24 i915: - Remove Coffeelake from alpha support - Cannonlake workarounds - Infoframe refactoring for DisplayPort - VBT updates - DisplayPort vswing/emph/buffer translation refactoring - CCS fixes - Restore GPU clock boost on missed vblanks - Scatter list updates for userptr allocations - Gen9+ transition watermarks - Display IPC (Isochronous Priority Control) - Private PAT management - GVT: improved error handling and pci config sanitizing - Execlist refactoring - Transparent Huge Page support - User defined priorities support - HuC/GuC firmware refactoring - DP MST fixes - eDP power sequencing fixes - Use RCU instead of stop_machine - PSR state tracking support - Eviction fixes - BDW DP aux channel timeout fixes - LSPCON fixes - Cannonlake PLL fixes amdgpu: - Per VM BO support - Powerplay cleanups - CI powerplay support - PASID mgr for kfd - SR-IOV fixes - initial GPU reset for vega10 - Prime mmap support - TTM updates - Clock query interface for Raven - Fence to handle ioctl - UVD encode ring support on Polaris - Transparent huge page DMA support - Compute LRU pipe tweaks - BO flag to allow buffers to opt out of implicit sync - CTX priority setting API - VRAM lost infrastructure plumbing qxl: - fix flicker since atomic rework amdkfd: - Further improvements from internal AMD tree - Usermode events - Drop radeon support nouveau: - Pascal temperature sensor support - Improved BAR2 handling - MMU rework to support Pascal MMU exynos: - Improved HDMI/mixer support - HDMI audio interface support tegra: - Prep work for tegra186 - Cleanup/fixes msm: - Preemption support for a5xx - Display fixes for 8x96 (snapdragon 820) - Async cursor plane fixes - FW loading rework - GPU debugging improvements vc4: - Prep for DSI panels - fix T-format tiling scanout - New madvise ioctl Rockchip: - LVDS support omapdrm: - omap4 HDMI CEC support etnaviv: - GPU performance counters groundwork sun4i: - refactor driver load + TCON backend - HDMI improvements - A31 support - Misc fixes udl: - Probe/EDID read fixes. tilcdc: - Misc fixes. pl111: - Support more variants adv7511: - Improve EDID handling. - HDMI CEC support sii8620: - Add remote control support" * tag 'drm-for-v4.15' of git://people.freedesktop.org/~airlied/linux: (1480 commits) drm/rockchip: analogix_dp: Use mutex rather than spinlock drm/mode_object: fix documentation for object lookups. drm/i915: Reorder context-close to avoid calling i915_vma_close() under RCU drm/i915: Move init_clock_gating() back to where it was drm/i915: Prune the reservation shared fence array drm/i915: Idle the GPU before shinking everything drm/i915: Lock llist_del_first() vs llist_del_all() drm/i915: Calculate ironlake intermediate watermarks correctly, v2. drm/i915: Disable lazy PPGTT page table optimization for vGPU drm/i915/execlists: Remove the priority "optimisation" drm/i915: Filter out spurious execlists context-switch interrupts drm/amdgpu: use irq-safe lock for kiq->ring_lock drm/amdgpu: bypass lru touch for KIQ ring submission drm/amdgpu: Potential uninitialized variable in amdgpu_vm_update_directories() drm/amdgpu: potential uninitialized variable in amdgpu_vce_ring_parse_cs() drm/amd/powerplay: initialize a variable before using it drm/amd/powerplay: suppress KASAN out of bounds warning in vega10_populate_all_memory_levels drm/amd/amdgpu: fix evicted VRAM bo adjudgement condition drm/vblank: Tune drm_crtc_accurate_vblank_count() WARN down to a debug drm/rockchip: add CONFIG_OF dependency for lvds ... |
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Linus Torvalds | 7c225c69f8 |
Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton: - a few misc bits - ocfs2 updates - almost all of MM * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (131 commits) memory hotplug: fix comments when adding section mm: make alloc_node_mem_map a void call if we don't have CONFIG_FLAT_NODE_MEM_MAP mm: simplify nodemask printing mm,oom_reaper: remove pointless kthread_run() error check mm/page_ext.c: check if page_ext is not prepared writeback: remove unused function parameter mm: do not rely on preempt_count in print_vma_addr mm, sparse: do not swamp log with huge vmemmap allocation failures mm/hmm: remove redundant variable align_end mm/list_lru.c: mark expected switch fall-through mm/shmem.c: mark expected switch fall-through mm/page_alloc.c: broken deferred calculation mm: don't warn about allocations which stall for too long fs: fuse: account fuse_inode slab memory as reclaimable mm, page_alloc: fix potential false positive in __zone_watermark_ok mm: mlock: remove lru_add_drain_all() mm, sysctl: make NUMA stats configurable shmem: convert shmem_init_inodecache() to void Unify migrate_pages and move_pages access checks mm, pagevec: rename pagevec drained field ... |
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Mel Gorman | 2d4894b5d2 |
mm: remove cold parameter from free_hot_cold_page*
Most callers users of free_hot_cold_page claim the pages being released are cache hot. The exception is the page reclaim paths where it is likely that enough pages will be freed in the near future that the per-cpu lists are going to be recycled and the cache hotness information is lost. As no one really cares about the hotness of pages being released to the allocator, just ditch the parameter. The APIs are renamed to indicate that it's no longer about hot/cold pages. It should also be less confusing as there are subtle differences between them. __free_pages drops a reference and frees a page when the refcount reaches zero. free_hot_cold_page handled pages whose refcount was already zero which is non-obvious from the name. free_unref_page should be more obvious. No performance impact is expected as the overhead is marginal. The parameter is removed simply because it is a bit stupid to have a useless parameter copied everywhere. [mgorman@techsingularity.net: add pages to head, not tail] Link: http://lkml.kernel.org/r/20171019154321.qtpzaeftoyyw4iey@techsingularity.net Link: http://lkml.kernel.org/r/20171018075952.10627-8-mgorman@techsingularity.net Signed-off-by: Mel Gorman <mgorman@techsingularity.net> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Andi Kleen <ak@linux.intel.com> Cc: Dave Chinner <david@fromorbit.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Jan Kara <jack@suse.cz> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Levin, Alexander (Sasha Levin) | 75f296d93b |
kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK
Convert all allocations that used a NOTRACK flag to stop using it. Link: http://lkml.kernel.org/r/20171007030159.22241-3-alexander.levin@verizon.com Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Cc: Alexander Potapenko <glider@google.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Pekka Enberg <penberg@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Tim Hansen <devtimhansen@gmail.com> Cc: Vegard Nossum <vegardno@ifi.uio.no> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Kirill A. Shutemov | b4e98d9ac7 |
mm: account pud page tables
On a machine with 5-level paging support a process can allocate
significant amount of memory and stay unnoticed by oom-killer and memory
cgroup. The trick is to allocate a lot of PUD page tables. We don't
account PUD page tables, only PMD and PTE.
We already addressed the same issue for PMD page tables, see commit
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Linus Torvalds | 1b6115fbe3 |
pci-v4.15-changes
-----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJaDFIdAAoJEFmIoMA60/r8Jg4P/3IrmMNVnpqmYEZ7lRSW7UQ3 8jtupbzIkbPsIAEhbJ7xqO7zKx85j6Og+ZSOv4a8u/tS6cd1aVZu2PpWsTkacez0 7nLGVCSL3HZi5qcrtOvb2Pmke18SUKSPxVYSgS2ajQavB1oKaY03FbHDWyWidCZx qxkeGZOiUDw5kSGkQWyks1WgB0dd76rVbPcrKKEJueGgrdSm+EdgdDv8eT6bZInZ uMrCmSjNYTQP0KASCJJvgYOtJbdwvP6NuQTxzOlU2G+H2SqsLRjsz4UUR8FF06T5 cndpgpG3QSAZLx7wCeWTvRorTEYORzKMoyw/AUjhiGbRep9Zw0aKNvCC99E6xjyD FECrk6kCrqZs7l+LVXK4SwpBXCVjNgRoFAHBEKF2X3/SWUkUhHXZHCVvMQB8LQiS 2p8VRoYWw2aCLkHCGynuzToUrD2P2Pjxe5n/13aYVJkyBNfQqqZ3l2YHiZdpDO3j rgG6RW0WCrpZxfb/0WAbPnQ2qpZAwDPO6hOW7dIfTZabFVXRIkBvNq53by/0MxvP jyOcMTsq2l8y46f3VgNPUAHj0f52HwfZA3PQRPh+MQDz5385BJklDRWtfVM7cQx9 IoeGkq1zLLvpOh63he/jnnRELxDvNVcxND8lOkenJlObj9kK63hUEcXg/zEMS4w3 oetLw9TqE32Jb7GfpVSw =j4L3 -----END PGP SIGNATURE----- Merge tag 'pci-v4.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: - detach driver before tearing down procfs/sysfs (Alex Williamson) - disable PCIe services during shutdown (Sinan Kaya) - fix ASPM oops on systems with no Root Ports (Ard Biesheuvel) - fix ASPM LTR_L1.2_THRESHOLD programming (Bjorn Helgaas) - fix ASPM Common_Mode_Restore_Time computation (Bjorn Helgaas) - fix portdrv MSI/MSI-X vector allocation (Dongdong Liu, Bjorn Helgaas) - report non-fatal AER errors only to the affected endpoint (Gabriele Paoloni) - distribute bus numbers, MMIO, and I/O space among hotplug bridges to allow more devices to be hot-added (Mika Westerberg) - fix pciehp races during initialization and surprise link down (Mika Westerberg) - handle surprise-removed devices in PME handling (Qiang) - support resizable BARs for large graphics devices (Christian König) - expose SR-IOV offset, stride, and VF device ID via sysfs (Filippo Sironi) - create SR-IOV virtfn/physfn sysfs links before attaching driver (Stuart Hayes) - fix SR-IOV "ARI Capable Hierarchy" restore issue (Tony Nguyen) - enforce Kconfig IOV/REALLOC dependency (Sascha El-Sharkawy) - avoid slot reset if bridge itself is broken (Jan Glauber) - clean up pci_reset_function() path (Jan H. Schönherr) - make pci_map_rom() fail if the option ROM is invalid (Changbin Du) - convert timers to timer_setup() (Kees Cook) - move PCI_QUIRKS to PCI bus Kconfig menu (Randy Dunlap) - constify pci_dev_type and intel_mid_pci_ops (Bhumika Goyal) - remove unnecessary pci_dev, pci_bus, resource, pcibios_set_master() declarations (Bjorn Helgaas) - fix endpoint framework overflows and BUG()s (Dan Carpenter) - fix endpoint framework issues (Kishon Vijay Abraham I) - avoid broken Cavium CN8xxx bus reset behavior (David Daney) - extend Cavium ACS capability quirks (Vadim Lomovtsev) - support Synopsys DesignWare RC in ECAM mode (Ard Biesheuvel) - turn off dra7xx clocks cleanly on shutdown (Keerthy) - fix Faraday probe error path (Wei Yongjun) - support HiSilicon STB SoC PCIe host controller (Jianguo Sun) - fix Hyper-V interrupt affinity issue (Dexuan Cui) - remove useless ACPI warning for Hyper-V pass-through devices (Vitaly Kuznetsov) - support multiple MSI on iProc (Sandor Bodo-Merle) - support Layerscape LS1012a and LS1046a PCIe host controllers (Hou Zhiqiang) - fix Layerscape default error response (Minghuan Lian) - support MSI on Tango host controller (Marc Gonzalez) - support Tegra186 PCIe host controller (Manikanta Maddireddy) - use generic accessors on Tegra when possible (Thierry Reding) - support V3 Semiconductor PCI host controller (Linus Walleij) * tag 'pci-v4.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (85 commits) PCI/ASPM: Add L1 Substates definitions PCI/ASPM: Reformat ASPM register definitions PCI/ASPM: Use correct capability pointer to program LTR_L1.2_THRESHOLD PCI/ASPM: Account for downstream device's Port Common_Mode_Restore_Time PCI: xgene: Rename xgene_pcie_probe_bridge() to xgene_pcie_probe() PCI: xilinx: Rename xilinx_pcie_link_is_up() to xilinx_pcie_link_up() PCI: altera: Rename altera_pcie_link_is_up() to altera_pcie_link_up() PCI: Fix kernel-doc build warning PCI: Fail pci_map_rom() if the option ROM is invalid PCI: Move pci_map_rom() error path PCI: Move PCI_QUIRKS to the PCI bus menu alpha/PCI: Make pdev_save_srm_config() static PCI: Remove unused declarations PCI: Remove redundant pci_dev, pci_bus, resource declarations PCI: Remove redundant pcibios_set_master() declarations PCI/PME: Handle invalid data when reading Root Status PCI: hv: Use effective affinity mask PCI: pciehp: Do not clear Presence Detect Changed during initialization PCI: pciehp: Fix race condition handling surprise link down PCI: Distribute available resources to hotplug-capable bridges ... |
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Linus Torvalds | 1be2172e96 |
Modules updates for v4.15
Summary of modules changes for the 4.15 merge window: - Treewide module_param_call() cleanup, fix up set/get function prototype mismatches, from Kees Cook - Minor code cleanups Signed-off-by: Jessica Yu <jeyu@kernel.org> -----BEGIN PGP SIGNATURE----- iQIcBAABCgAGBQJaDCyzAAoJEMBFfjjOO8FyaYQP/AwHBy6XmwwVlWDP4BqIF6hL Vhy3ccVLYEORvePv68tWSRPUz5n6+1Ebqanmwtkw6i8l+KwxY2SfkZql09cARc33 2iBE4bHF98iWQmnJbF6me80fedY9n5bZJNMQKEF9VozJWwTMOTQFTCfmyJRDBmk9 iidQj6M3idbSUOYIJjvc40VGx5NyQWSr+FFfqsz1rU5iLGRGEvA3I2/CDT0oTuV6 D4MmFxzE2Tv/vIMa2GzKJ1LGScuUfSjf93Lq9Kk0cG36qWao8l930CaXyVdE9WJv bkUzpf3QYv/rDX6QbAGA0cada13zd+dfBr8YhchclEAfJ+GDLjMEDu04NEmI6KUT 5lP0Xw0xYNZQI7bkdxDMhsj5jaz/HJpXCjPCtZBnSEKiL4OPXVMe+pBHoCJ2/yFN 6M716XpWYgUviUOdiE+chczB5p3z4FA6u2ykaM4Tlk0btZuHGxjcSWwvcIdlPmjm kY4AfDV6K0bfEBVguWPJicvrkx44atqT5nWbbPhDwTSavtsuRJLb3GCsHedx7K8h ZO47lCQFAWCtrycK1HYw+oupNC3hYWQ0SR42XRdGhL1bq26C+1sei1QhfqSgA9PQ 7CwWH4UTOL9fhtrzSqZngYOh9sjQNFNefqQHcecNzcEjK2vjrgQZvRNWZKHSwaFs fbGX8juZWP4ypbK+irTB =c8vb -----END PGP SIGNATURE----- Merge tag 'modules-for-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux Pull module updates from Jessica Yu: "Summary of modules changes for the 4.15 merge window: - treewide module_param_call() cleanup, fix up set/get function prototype mismatches, from Kees Cook - minor code cleanups" * tag 'modules-for-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux: module: Do not paper over type mismatches in module_param_call() treewide: Fix function prototypes for module_param_call() module: Prepare to convert all module_param_call() prototypes kernel/module: Delete an error message for a failed memory allocation in add_module_usage() |
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Linus Torvalds | 9682b3dea2 |
Merge branch 'for-linus' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree updates from Jiri Kosina: "The usual rocket-science from trivial tree for 4.15" * 'for-linus' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: MAINTAINERS: relinquish kconfig MAINTAINERS: Update my email address treewide: Fix typos in Kconfig kfifo: Fix comments init/Kconfig: Fix module signing document location misc: ibmasm: Return error on error path HID: logitech-hidpp: fix mistake in printk, "feeback" -> "feedback" MAINTAINERS: Correct path to uDraw PS3 driver tracing: Fix doc mistakes in trace sample tracing: Kconfig text fixes for CONFIG_HWLAT_TRACER MIPS: Alchemy: Remove reverted CONFIG_NETLINK_MMAP from db1xxx_defconfig mm/huge_memory.c: fixup grammar in comment lib/xz: Add fall-through comments to a switch statement |
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Jeff Layton | 4d2dc2cc76 |
fcntl: don't cap l_start and l_end values for F_GETLK64 in compat syscall
Currently, we're capping the values too low in the F_GETLK64 case. The
fields in that structure are 64-bit values, so we shouldn't need to do
any sort of fixup there.
Make sure we check that assumption at build time in the future however
by ensuring that the sizes we're copying will fit.
With this, we no longer need COMPAT_LOFF_T_MAX either, so remove it.
Fixes:
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Michael Ellerman | 3ffa9d9e2a |
powerpc/64s: Fix Power9 DD2.0 workarounds by adding DD2.1 feature
Recently we added a CPU feature for Power9 DD2.0, to capture the fact that some workarounds are required only on Power9 DD1 and DD2.0 but not DD2.1 or later. Then in commit |
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Linus Torvalds | 37cb8e1f8e |
DeviceTree for 4.15:
- kbuild cleanups and improvements for dtbs - Code clean-up of overlay code and fixing for some long standing memory leak and race condition in applying overlays - Improvements to DT memory usage making sysfs/kobjects optional and skipping unflattening of disabled nodes. This is part of kernel tinification efforts. - Final piece of removing storing the full path for every DT node. The prerequisite conversion of printk's to use device_node format specifier happened in 4.14. - Sync with current upstream dtc. This brings additional checks to dtb compiling. - Binding doc tree wide removal of leading 0s from examples - RTC binding documentation adding missing devices and some consolidation of duplicated bindings - Vendor prefix documentation for nutsboard, Silicon Storage Technology, shimafuji, Tecon Microprocessor Technologies, DH electronics GmbH, Opal Kelly, and Next Thing -----BEGIN PGP SIGNATURE----- iQItBAABCAAXBQJaCwaSEBxyb2JoQGtlcm5lbC5vcmcACgkQ+vtdtY28YcNzeA/8 C8uQhSsX2+UQZvFzcEA8KQAMGT3kYdrcf+gidRKwCEUWg1qscUEpTb3n3Rm5NUbU RPD1s6GSlh6fJCMHDTQ6Tti/T59L7nZa2/AIGmUishGu4x4q1o18AobpFJmYP/EM SJPwnmm5RV9WcZFao1y+sY3Xtn8DStxHO4cS+dyF5/EvPN9D8nbLJfu7bgTBAZww HktIMB9kx+GTipRQZBvBwXoy5MJjthIZub4XwzesA4tGananj4cXlc0xaVxpdYy3 5bO6q5F7cbrZ2uyrF+oIChpCENK4VaXh80m0WHc8EzaG++shzEkR4he1vYkwnV+I OYo4vsUg9dP8rBksUG1eYhS8fJKPvEBRNP7ETT5utVBy5I/tDEbo/crmQZRTIDIC hZbhcdZlISZj0DzkMK2ZHQV9UYtRWzXrJbZHFIPP12GCyvXVxYJUIWb9iYnUYSon KugygsFSpZHMWmfAhemw5/ctJZ19qhM5UIl2KZk5tMBHAf466ILmZjg0me6fYkOp eADfwHJ1dLMdK79CVMHSfp+vArcZXp35B16c3sWpJB36Il97Mc/9siEufCL4GKX7 IBBnQBlbpSBKBejWVyI7Ip/Xp5u4qAQD+ZMJ9oLqBRqfWerHbDuOERlEOgwGqJYr 9v4HvP7V8eVUvAdqXka4EBfCyAgUzXDAxG2Dfmv9vGU= =jgpN -----END PGP SIGNATURE----- Merge tag 'devicetree-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull DeviceTree updates from Rob Herring: "A bigger diffstat than usual with the kbuild changes and a tree wide fix in the binding documentation. Summary: - kbuild cleanups and improvements for dtbs - Code clean-up of overlay code and fixing for some long standing memory leak and race condition in applying overlays - Improvements to DT memory usage making sysfs/kobjects optional and skipping unflattening of disabled nodes. This is part of kernel tinification efforts. - Final piece of removing storing the full path for every DT node. The prerequisite conversion of printk's to use device_node format specifier happened in 4.14. - Sync with current upstream dtc. This brings additional checks to dtb compiling. - Binding doc tree wide removal of leading 0s from examples - RTC binding documentation adding missing devices and some consolidation of duplicated bindings - Vendor prefix documentation for nutsboard, Silicon Storage Technology, shimafuji, Tecon Microprocessor Technologies, DH electronics GmbH, Opal Kelly, and Next Thing" * tag 'devicetree-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (55 commits) dt-bindings: usb: add #phy-cells to usb-nop-xceiv dt-bindings: Remove leading zeros from bindings notation kbuild: handle dtb-y and CONFIG_OF_ALL_DTBS natively in Makefile.lib MIPS: dts: remove bogus bcm96358nb4ser.dtb from dtb-y entry kbuild: clean up *.dtb and *.dtb.S patterns from top-level Makefile .gitignore: move *.dtb and *.dtb.S patterns to the top-level .gitignore .gitignore: sort normal pattern rules alphabetically dt-bindings: add vendor prefix for Next Thing Co. scripts/dtc: Update to upstream version v1.4.5-6-gc1e55a5513e9 of: dynamic: fix memory leak related to properties of __of_node_dup of: overlay: make pr_err() string unique of: overlay: pr_err from return NOTIFY_OK to overlay apply/remove of: overlay: remove unneeded check for NULL kbasename() of: overlay: remove a dependency on device node full_name of: overlay: simplify applying symbols from an overlay of: overlay: avoid race condition between applying multiple overlays of: overlay: loosen overly strict phandle clash check of: overlay: expand check of whether overlay changeset can be removed of: overlay: detect cases where device tree may become corrupt of: overlay: minor restructuring ... |
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Linus Torvalds | e37e0ee019 |
A couple of dma-mapping updates:
- turn dma_cache_sync into a dma_map_ops instance and remove implementation that purely are dead because the architecture doesn't support noncoherent allocations - add a flag for busses that need DMA configuration (Robin Murphy) -----BEGIN PGP SIGNATURE----- iQI/BAABCAApFiEEgdbnc3r/njty3Iq9D55TZVIEUYMFAloLSrYLHGhjaEBsc3Qu ZGUACgkQD55TZVIEUYOMuQ//XXD94uNPYavrgXzGsAtg+I+LEm+xyk4T0dX5fxfj amXX49MHoGemjsBgzJlkQMMFqwDEdkKyEuFnEuy6OeowYCyD6zW0MJ3MwP9OosNJ PNTdGZIfSvxPYEW8cR9AdK3iQ2loMBZnYhd+O/oVjSugULLW2DNa7r2VRktcCKoh 8Ob/8gL6Y9xEYJBRszhrBwKTa/hU8IThxxozBFzN7I3LIKyFboSTcwXGLAHow43g 4anCTjWTaDcoU2JwY6UTRKRRTV+gD0ZRcsZfd8lNNb5rtMVZkBVOHbF14SMAmw1r kSgRcU3+WIFPhK/8wBYqtGZZGnOgFBTHVeqow3AdS728pBWlWl8niTK0DiIgCd3m qzScF6SqfN1bCZkZAy8FUV2l0DPYKS6lvyNkf00Eb2W/f6LEqAcjCi2QDDxRfaw+ Vm97nPUiM+uXNy/6KtAy6ChdprSqx12/edXPp7Y3H2rS/+Dmr6exeix+wb7QUN8W JI7ZRHo4JLaJZk/XrZtGX/6jnN1Jo7vfApQOmYDY7kE1iGtOU/LQQj8gcZRVQxML 4soN6ivSmZX2k03LabWHpYQ8QiyCSYChLC+Az7rQH47LDLeu1IdTJu6orpXpaxyo ymzEWlHbmF7mE66X4g/Up/eAYk2YLUA3rKLGVjAIaWDBzHftSFg5EaAnqMADC1G2 hSo= =ALJf -----END PGP SIGNATURE----- Merge tag 'dma-mapping-4.15' of git://git.infradead.org/users/hch/dma-mapping Pull dma-mapping updates from Christoph Hellwig: - turn dma_cache_sync into a dma_map_ops instance and remove implementation that purely are dead because the architecture doesn't support noncoherent allocations - add a flag for busses that need DMA configuration (Robin Murphy) * tag 'dma-mapping-4.15' of git://git.infradead.org/users/hch/dma-mapping: dma-mapping: turn dma_cache_sync into a dma_map_ops method sh: make dma_cache_sync a no-op xtensa: make dma_cache_sync a no-op unicore32: make dma_cache_sync a no-op powerpc: make dma_cache_sync a no-op mn10300: make dma_cache_sync a no-op microblaze: make dma_cache_sync a no-op ia64: make dma_cache_sync a no-op frv: make dma_cache_sync a no-op x86: make dma_cache_sync a no-op floppy: consolidate the dummy fd_cacheflush definition drivers: flag buses which demand DMA configuration |
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Bjorn Helgaas | 9ceb09cce1 |
Merge branch 'pci/virtualization' into next
* pci/virtualization: PCI: Document reset method return values PCI: Detach driver before procfs & sysfs teardown on device remove PCI: Apply Cavium ThunderX ACS quirk to more Root Ports PCI: Set Cavium ACS capability quirk flags to assert RR/CR/SV/UF PCI: Restore ARI Capable Hierarchy before setting numVFs PCI: Create SR-IOV virtfn/physfn links before attaching driver PCI: Expose SR-IOV offset, stride, and VF device ID via sysfs PCI: Cache the VF device ID in the SR-IOV structure PCI: Add Kconfig PCI_IOV dependency for PCI_REALLOC_ENABLE_AUTO PCI: Remove unused function __pci_reset_function() PCI: Remove reset argument from pci_iov_{add,remove}_virtfn() |
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Michael Ellerman | 475b581ff5 |
powerpc/64s: Fix masking of SRR1 bits on instruction fault
On 64-bit Book3s, when we take an instruction fault the reason for the fault may be reported in SRR1. For data faults the reason is reported in DSISR (Data Storage Instruction Status Register). The reasons reported in each do not necessarily correspond, so we mask the SRR1 bits before copying them to the DSISR, which is then used by the page fault code. Prior to commit |
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Linus Torvalds | 2bcc673101 |
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner: "Yet another big pile of changes: - More year 2038 work from Arnd slowly reaching the point where we need to think about the syscalls themself. - A new timer function which allows to conditionally (re)arm a timer only when it's either not running or the new expiry time is sooner than the armed expiry time. This allows to use a single timer for multiple timeout requirements w/o caring about the first expiry time at the call site. - A new NMI safe accessor to clock real time for the printk timestamp work. Can be used by tracing, perf as well if required. - A large number of timer setup conversions from Kees which got collected here because either maintainers requested so or they simply got ignored. As Kees pointed out already there are a few trivial merge conflicts and some redundant commits which was unavoidable due to the size of this conversion effort. - Avoid a redundant iteration in the timer wheel softirq processing. - Provide a mechanism to treat RTC implementations depending on their hardware properties, i.e. don't inflict the write at the 0.5 seconds boundary which originates from the PC CMOS RTC to all RTCs. No functional change as drivers need to be updated separately. - The usual small updates to core code clocksource drivers. Nothing really exciting" * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (111 commits) timers: Add a function to start/reduce a timer pstore: Use ktime_get_real_fast_ns() instead of __getnstimeofday() timer: Prepare to change all DEFINE_TIMER() callbacks netfilter: ipvs: Convert timers to use timer_setup() scsi: qla2xxx: Convert timers to use timer_setup() block/aoe: discover_timer: Convert timers to use timer_setup() ide: Convert timers to use timer_setup() drbd: Convert timers to use timer_setup() mailbox: Convert timers to use timer_setup() crypto: Convert timers to use timer_setup() drivers/pcmcia: omap1: Fix error in automated timer conversion ARM: footbridge: Fix typo in timer conversion drivers/sgi-xp: Convert timers to use timer_setup() drivers/pcmcia: Convert timers to use timer_setup() drivers/memstick: Convert timers to use timer_setup() drivers/macintosh: Convert timers to use timer_setup() hwrng/xgene-rng: Convert timers to use timer_setup() auxdisplay: Convert timers to use timer_setup() sparc/led: Convert timers to use timer_setup() mips: ip22/32: Convert timers to use timer_setup() ... |
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Linus Torvalds | d6ec9d9a4d |
Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 core updates from Ingo Molnar: "Note that in this cycle most of the x86 topics interacted at a level that caused them to be merged into tip:x86/asm - but this should be a temporary phenomenon, hopefully we'll back to the usual patterns in the next merge window. The main changes in this cycle were: Hardware enablement: - Add support for the Intel UMIP (User Mode Instruction Prevention) CPU feature. This is a security feature that disables certain instructions such as SGDT, SLDT, SIDT, SMSW and STR. (Ricardo Neri) [ Note that this is disabled by default for now, there are some smaller enhancements in the pipeline that I'll follow up with in the next 1-2 days, which allows this to be enabled by default.] - Add support for the AMD SEV (Secure Encrypted Virtualization) CPU feature, on top of SME (Secure Memory Encryption) support that was added in v4.14. (Tom Lendacky, Brijesh Singh) - Enable new SSE/AVX/AVX512 CPU features: AVX512_VBMI2, GFNI, VAES, VPCLMULQDQ, AVX512_VNNI, AVX512_BITALG. (Gayatri Kammela) Other changes: - A big series of entry code simplifications and enhancements (Andy Lutomirski) - Make the ORC unwinder default on x86 and various objtool enhancements. (Josh Poimboeuf) - 5-level paging enhancements (Kirill A. Shutemov) - Micro-optimize the entry code a bit (Borislav Petkov) - Improve the handling of interdependent CPU features in the early FPU init code (Andi Kleen) - Build system enhancements (Changbin Du, Masahiro Yamada) - ... plus misc enhancements, fixes and cleanups" * 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (118 commits) x86/build: Make the boot image generation less verbose selftests/x86: Add tests for the STR and SLDT instructions selftests/x86: Add tests for User-Mode Instruction Prevention x86/traps: Fix up general protection faults caused by UMIP x86/umip: Enable User-Mode Instruction Prevention at runtime x86/umip: Force a page fault when unable to copy emulated result to user x86/umip: Add emulation code for UMIP instructions x86/cpufeature: Add User-Mode Instruction Prevention definitions x86/insn-eval: Add support to resolve 16-bit address encodings x86/insn-eval: Handle 32-bit address encodings in virtual-8086 mode x86/insn-eval: Add wrapper function for 32 and 64-bit addresses x86/insn-eval: Add support to resolve 32-bit address encodings x86/insn-eval: Compute linear address in several utility functions resource: Fix resource_size.cocci warnings X86/KVM: Clear encryption attribute when SEV is active X86/KVM: Decrypt shared per-cpu variables when SEV is active percpu: Introduce DEFINE_PER_CPU_DECRYPTED x86: Add support for changing memory encryption attribute in early boot x86/io: Unroll string I/O when SEV is active x86/boot: Add early boot support when running with SEV active ... |
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Linus Torvalds | 8e9a2dba86 |
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core locking updates from Ingo Molnar: "The main changes in this cycle are: - Another attempt at enabling cross-release lockdep dependency tracking (automatically part of CONFIG_PROVE_LOCKING=y), this time with better performance and fewer false positives. (Byungchul Park) - Introduce lockdep_assert_irqs_enabled()/disabled() and convert open-coded equivalents to lockdep variants. (Frederic Weisbecker) - Add down_read_killable() and use it in the VFS's iterate_dir() method. (Kirill Tkhai) - Convert remaining uses of ACCESS_ONCE() to READ_ONCE()/WRITE_ONCE(). Most of the conversion was Coccinelle driven. (Mark Rutland, Paul E. McKenney) - Get rid of lockless_dereference(), by strengthening Alpha atomics, strengthening READ_ONCE() with smp_read_barrier_depends() and thus being able to convert users of lockless_dereference() to READ_ONCE(). (Will Deacon) - Various micro-optimizations: - better PV qspinlocks (Waiman Long), - better x86 barriers (Michael S. Tsirkin) - better x86 refcounts (Kees Cook) - ... plus other fixes and enhancements. (Borislav Petkov, Juergen Gross, Miguel Bernal Marin)" * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (70 commits) locking/x86: Use LOCK ADD for smp_mb() instead of MFENCE rcu: Use lockdep to assert IRQs are disabled/enabled netpoll: Use lockdep to assert IRQs are disabled/enabled timers/posix-cpu-timers: Use lockdep to assert IRQs are disabled/enabled sched/clock, sched/cputime: Use lockdep to assert IRQs are disabled/enabled irq_work: Use lockdep to assert IRQs are disabled/enabled irq/timings: Use lockdep to assert IRQs are disabled/enabled perf/core: Use lockdep to assert IRQs are disabled/enabled x86: Use lockdep to assert IRQs are disabled/enabled smp/core: Use lockdep to assert IRQs are disabled/enabled timers/hrtimer: Use lockdep to assert IRQs are disabled/enabled timers/nohz: Use lockdep to assert IRQs are disabled/enabled workqueue: Use lockdep to assert IRQs are disabled/enabled irq/softirqs: Use lockdep to assert IRQs are disabled/enabled locking/lockdep: Add IRQs disabled/enabled assertion APIs: lockdep_assert_irqs_enabled()/disabled() locking/pvqspinlock: Implement hybrid PV queued/unfair locks locking/rwlocks: Fix comments x86/paravirt: Set up the virt_spin_lock_key after static keys get initialized block, locking/lockdep: Assign a lock_class per gendisk used for wait_for_completion() workqueue: Remove now redundant lock acquisitions wrt. workqueue flushes ... |
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Nicholas Piggin | 4722476bce |
powerpc/64s: mm_context.addr_limit is only used on hash
Radix keeps no meaningful state in addr_limit, so remove it from radix code and rename to slb_addr_limit to make it clear it applies to hash only. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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Nicholas Piggin | 85e3f1adcb |
powerpc/64s/radix: Fix 128TB-512TB virtual address boundary case allocation
Radix VA space allocations test addresses against mm->task_size which
is 512TB, even in cases where the intention is to limit allocation to
below 128TB.
This results in mmap with a hint address below 128TB but address +
length above 128TB succeeding when it should fail (as hash does after
the previous patch).
Set the high address limit to be considered up front, and base
subsequent allocation checks on that consistently.
Fixes:
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Nicholas Piggin | 35602f82d0 |
powerpc/64s/hash: Allow MAP_FIXED allocations to cross 128TB boundary
While mapping hints with a length that cross 128TB are disallowed,
MAP_FIXED allocations that cross 128TB are allowed. These are failing
on hash (on radix they succeed). Add an additional case for fixed
mappings to expand the addr_limit when crossing 128TB.
Fixes:
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Nicholas Piggin | effc1b2508 |
powerpc/64s/hash: Fix fork() with 512TB process address space
Hash unconditionally resets the addr_limit to default (128TB) when the
mm context is initialised. If a process has > 128TB mappings when it
forks, the child will not get the 512TB addr_limit, so accesses to
valid > 128TB mappings will fail in the child.
Fix this by only resetting the addr_limit to default if it was 0. Non
zero indicates it was duplicated from the parent (0 means exec()).
Fixes:
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Nicholas Piggin | 6a72dc038b |
powerpc/64s/hash: Fix 128TB-512TB virtual address boundary case allocation
When allocating VA space with a hint that crosses 128TB, the SLB
addr_limit variable is not expanded if addr is not > 128TB, but the
slice allocation looks at task_size, which is 512TB. This results in
slice_check_fit() incorrectly succeeding because the slice_count
truncates off bit 128 of the requested mask, so the comparison to the
available mask succeeds.
Fix this by using mm->context.addr_limit instead of mm->task_size for
testing allocation limits. This causes such allocations to fail.
Fixes:
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Michael Ellerman | 7ece370996 |
powerpc/64s/hash: Fix 512T hint detection to use >= 128T
Currently userspace is able to request mmap() search between 128T-512T
by specifying a hint address that is greater than 128T. But that means
a hint of 128T exactly will return an address below 128T, which is
confusing and wrong.
So fix the logic to check the hint is greater than *or equal* to 128T.
Fixes:
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