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2020-02-12tools headers kvm: Sync linux/kvm.h with the kernel sourcesArnaldo Carvalho de Melo1-0/+5
To pick up the changes from: 7de3f1423ff9 ("KVM: s390: Add new reset vcpu API") So far we're ignoring those arch specific ioctls, we need to revisit this at some time to have arch specific tables, etc: $ grep S390 tools/perf/trace/beauty/kvm_ioctl.sh egrep -v " ((ARM|PPC|S390)_|[GS]ET_(DEBUGREGS|PIT2|XSAVE|TSC_KHZ)|CREATE_SPAPR_TCE_64)" | \ $ This addresses these tools/perf build warnings: Warning: Kernel ABI header at 'tools/arch/arm/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm/include/uapi/asm/kvm.h' diff -u tools/arch/arm/include/uapi/asm/kvm.h arch/arm/include/uapi/asm/kvm.h Cc: Adrian Hunter <[email protected]> Cc: Christian Borntraeger <[email protected]> Cc: Janosch Frank <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-02-12tools headers kvm: Sync kvm headers with the kernel sourcesArnaldo Carvalho de Melo1-2/+10
To pick up the changes from: 290a6bb06de9 ("arm64: KVM: Add UAPI notes for swapped registers") No tools changes are caused by this. This addresses these tools/perf build warnings: Cc: Adrian Hunter <[email protected]> Cc: Andrew Jones <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Marc Zyngier <[email protected]> Cc: Namhyung Kim <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-02-12tools arch x86: Sync asm/cpufeatures.h with the kernel sourcesArnaldo Carvalho de Melo1-0/+2
To pick up the changes from: 85c17291e2eb ("x86/cpufeatures: Add flag to track whether MSR IA32_FEAT_CTL is configured") f444a5ff95dc ("x86/cpufeatures: Add support for fast short REP; MOVSB") These don't cause any changes in tooling, just silences this perf build warning: Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h' diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h Cc: Adrian Hunter <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Sean Christopherson <[email protected]> Cc: Tony Luck <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-02-12tools headers x86: Sync disabled-features.hArnaldo Carvalho de Melo1-7/+1
To silence the following tools/perf build warning: Warning: Kernel ABI header at 'tools/arch/x86/include/asm/disabled-features.h' differs from latest version at 'arch/x86/include/asm/disabled-features.h' diff -u tools/arch/x86/include/asm/disabled-features.h arch/x86/include/asm/disabled-features.h Picking up the changes in: 45fc24e89b7c ("x86/mpx: remove MPX from arch/x86") that didn't entail any functionality change in the tooling side. Cc: Adrian Hunter <[email protected]> Cc: Dave Hansen <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-02-12tools include UAPI: Sync sound/asound.h copyArnaldo Carvalho de Melo1-23/+132
Picking the changes from: 46b770f720bd ("ALSA: uapi: Fix sparse warning") a103a3989993 ("ALSA: control: Fix incompatible protocol error") bd3eb4e87eb3 ("ALSA: ctl: bump protocol version up to v2.1.0") ff16351e3f30 ("ALSA: ctl: remove dimen member from elem_info structure") 542283566679 ("ALSA: ctl: remove unused macro for timestamping of elem_value") 7fd7d6c50451 ("ALSA: uapi: Fix typos and header inclusion in asound.h") 1cfaef961703 ("ALSA: bump uapi version numbers") 80fe7430c708 ("ALSA: add new 32-bit layout for snd_pcm_mmap_status/control") 07094ae6f952 ("ALSA: Avoid using timespec for struct snd_timer_tread") d9e5582c4bb2 ("ALSA: Avoid using timespec for struct snd_rawmidi_status") 3ddee7f88aaf ("ALSA: Avoid using timespec for struct snd_pcm_status") a4e7dd35b9da ("ALSA: Avoid using timespec for struct snd_ctl_elem_value") a07804cc7472 ("ALSA: Avoid using timespec for struct snd_timer_status") Which entails no changes in the tooling side. To silence this perf tools build warning: Warning: Kernel ABI header at 'tools/include/uapi/sound/asound.h' differs from latest version at 'include/uapi/sound/asound.h' diff -u tools/include/uapi/sound/asound.h include/uapi/sound/asound.h Cc: Adrian Hunter <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Baolin Wang <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Ranjani Sridharan <[email protected]> Cc: Takashi Iwai <[email protected]> Cc: Takashi Sakamoto <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-02-12tools headers UAPI: Sync asm-generic/mman-common.h with the kernelArnaldo Carvalho de Melo1-0/+2
To pick the changes from: d41938d2cbee ("mm: Reserve asm-generic prot flags 0x10 and 0x20 for arch use") No changes in tooling, just a rebuild as files needed got touched. This addresses the following perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/mman-common.h' differs from latest version at 'include/uapi/asm-generic/mman-common.h' diff -u tools/include/uapi/asm-generic/mman-common.h include/uapi/asm-generic/mman-common.h Cc: Adrian Hunter <[email protected]> Cc: Dave Martin <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Will Deacon <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-02-12perf tools: Add arm64 version of get_cpuid()John Garry1-15/+48
Add an arm64 version of get_cpuid(), which is used for various annotation and headers - for example, I now get the CPUID in "perf report --header", as shown in this snippet: # hostname : ubuntu # os release : 5.5.0-rc1-dirty # perf version : 5.5.rc1.gbf8a13dc9851 # arch : aarch64 # nrcpus online : 96 # nrcpus avail : 96 # cpuid : 0x00000000480fd010 Since much of the code to read the MIDR is already in get_cpuid_str(), factor out this code. Tester notes: I tested this patch on my new ARM64 Kunpeng 920 server. [root@node1 zsk]# ./perf --version perf version 5.6.rc1.g2cdb955b7252 Both perf list and perf stat can work. Signed-off-by: John Garry <[email protected]> Tested-by: Shaokun Zhang <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Will Deacon <[email protected]> Cc: [email protected] Cc: [email protected] Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-02-12tools headers UAPI: Sync drm/i915_drm.h with the kernel sourcesArnaldo Carvalho de Melo1-0/+32
To pick the change in: cc662126b413 ("drm/i915: Introduce DRM_I915_GEM_MMAP_OFFSET") That don't result in any changes in tooling, just silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h' diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h Cc: Abdiel Janulgue <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Chris Wilson <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-02-12tools headers uapi: Sync linux/fscrypt.h with the kernel sourcesArnaldo Carvalho de Melo1-1/+13
To pick the changes from: e933adde6f97 ("fscrypt: include <linux/ioctl.h> in UAPI header") 93edd392cad7 ("fscrypt: support passing a keyring key to FS_IOC_ADD_ENCRYPTION_KEY") That don't trigger any changes in tooling. This silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/fscrypt.h' differs from latest version at 'include/uapi/linux/fscrypt.h' diff -u tools/include/uapi/linux/fscrypt.h include/uapi/linux/fscrypt.h Cc: Adrian Hunter <[email protected]> Cc: Eric Biggers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-02-11tools headers UAPI: Sync sched.h with the kernelArnaldo Carvalho de Melo1-0/+6
To get the changes in: 769071ac9f20 ("ns: Introduce Time Namespace") Silencing this tools/perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/sched.h' differs from latest version at 'include/uapi/linux/sched.h' diff -u tools/include/uapi/linux/sched.h include/uapi/linux/sched.h Which enables 'perf trace' to decode the CLONE_NEWTIME bit in the 'flags' argument to the clone syscalls. Example of clone flags being decoded: [root@quaco ~]# perf trace -e clone* 0.000 qemu-system-x8/23923 clone(clone_flags: VM|FS|FILES|SIGHAND|THREAD|SYSVSEM|SETTLS|PARENT_SETTID|CHILD_CLEARTID, newsp: 0x7f0dad7f9870, parent_tidptr: 0x7f0dad7fa9d0, child_tidptr: 0x7f0dad7fa9d0, tls: 0x7f0dad7fa700) = 6806 (qemu-system-x86) ? qemu-system-x8/6806 ... [continued]: clone()) = 0 ^C[root@quaco ~]# At some point this should enable things like: # perf trace -e 'clone*/clone_flags&NEWTIME/' Cc: Adrian Hunter <[email protected]> Cc: Andrei Vagin <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Thomas Gleixner <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-02-11perf trace: Resolve prctl's 'option' arg strings to numbersArnaldo Carvalho de Melo1-1/+3
# perf trace -e syscalls:sys_enter_prctl --filter="option==SET_NAME" 0.000 Socket Thread/3860 syscalls:sys_enter_prctl(option: SET_NAME, arg2: 0x7fc50b9733e8) 0.053 SSL Cert #78/3860 syscalls:sys_enter_prctl(option: SET_NAME, arg2: 0x7fc50b9733e8) ^C # If one uses '-v' with 'perf trace', we can see the filter it puts in place: New filter for syscalls:sys_enter_prctl: (option==0xf) && (common_pid != 3859 && common_pid != 2757) We still need to allow using plain '-e prctl' and have this turn into creating a 'syscalls:sys_enter_prctl' event so that the filter can be applied only to it as right now '-e prctl' ends up using the 'raw_syscalls:sys_enter/sys_exit'. The end goal is to have something like: # perf trace -e prctl/option==SET_NAME/ And have that use tracepoint filters or eBPF ones. Cc: Adrian Hunter <[email protected]> Cc: Christian Brauner <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mike Christie <[email protected]> Cc: Namhyung Kim <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-02-11perf beauty prctl: Export the 'options' strarrayArnaldo Carvalho de Melo2-1/+4
So that we can use it with strtoul, allowing string to number conversions in filter expressions. Cc: Adrian Hunter <[email protected]> Cc: Christian Brauner <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mike Christie <[email protected]> Cc: Namhyung Kim <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-02-11tools headers UAPI: Sync prctl.h with the kernel sourcesArnaldo Carvalho de Melo1-0/+4
To get the changes in: 8d19f1c8e193 ("prctl: PR_{G,S}ET_IO_FLUSHER to support controlling memory reclaim") Which ends up having this effect in tooling, i.e. the addition of the support to those prctl's options: $ tools/perf/trace/beauty/prctl_option.sh > before $ cp include/uapi/linux/prctl.h tools/include/uapi/linux/prctl.h $ git diff diff --git a/tools/include/uapi/linux/prctl.h b/tools/include/uapi/linux/prctl.h index 7da1b37b27aa..07b4f8131e36 100644 --- a/tools/include/uapi/linux/prctl.h +++ b/tools/include/uapi/linux/prctl.h @@ -234,4 +234,8 @@ struct prctl_mm_map { #define PR_GET_TAGGED_ADDR_CTRL 56 # define PR_TAGGED_ADDR_ENABLE (1UL << 0) +/* Control reclaim behavior when allocating memory */ +#define PR_SET_IO_FLUSHER 57 +#define PR_GET_IO_FLUSHER 58 + #endif /* _LINUX_PRCTL_H */ $ tools/perf/trace/beauty/prctl_option.sh > after $ diff -u before after --- before 2020-02-11 15:24:35.339289912 -0300 +++ after 2020-02-11 15:24:56.319711315 -0300 @@ -51,6 +51,8 @@ [54] = "PAC_RESET_KEYS", [55] = "SET_TAGGED_ADDR_CTRL", [56] = "GET_TAGGED_ADDR_CTRL", + [57] = "SET_IO_FLUSHER", + [58] = "GET_IO_FLUSHER", }; static const char *prctl_set_mm_options[] = { [1] = "START_CODE", $ Cc: Adrian Hunter <[email protected]> Cc: Christian Brauner <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mike Christie <[email protected]> Cc: Namhyung Kim <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-02-11tools headers UAPI: Sync copy of arm64's asm/unistd.h with the kernel sourcesArnaldo Carvalho de Melo1-0/+1
To get the changes in: 3e3c8ca5a351 ("arm64: Move __ARCH_WANT_SYS_CLONE3 definition to uapi headers") Silencing this tools/perf/ build warning: Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/unistd.h' differs from latest version at 'arch/arm64/include/uapi/asm/unistd.h' diff -u tools/arch/arm64/include/uapi/asm/unistd.h arch/arm64/include/uapi/asm/unistd.h Which will probably end up enabling the use of "clone3" in 'perf trace -e', haven't checked the build with this change on an arm64 system. Cc: Adrian Hunter <[email protected]> Cc: Amanieu d'Antras <[email protected]> Cc: Christian Brauner <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-02-11perf maps: Move kmap::kmaps setup to maps__insert()Jiri Olsa2-12/+11
So the kmaps pointer setup is centralized and we do not need to update it in all those places (2 current places and few more missing) after calling maps__insert(). Reported-by: Ravi Bangoria <[email protected]> Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Ravi Bangoria <[email protected]> Tested-by: Kim Phillips <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Michael Petlan <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-02-11perf maps: Fix map__clone() for struct kmapJiri Olsa1-1/+6
The map__clone() function can be called on kernel maps as well, so it needs to duplicate the whole kmap data. Reported-by: Ravi Bangoria <[email protected]> Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Ravi Bangoria <[email protected]> Tested-by: Kim Phillips <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Michael Petlan <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-02-11perf maps: Mark ksymbol DSOs with kernel typeJiri Olsa1-2/+10
We add ksymbol map into machine->kmaps, so it needs to be created as 'struct kmap', which is dependent on its dso having kernel type. Reported-by: Ravi Bangoria <[email protected]> Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Ravi Bangoria <[email protected]> Tested-by: Kim Phillips <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Michael Petlan <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lore.kernel.org/lkml/20200210200847.GA36715@krava Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-02-11perf maps: Mark module DSOs with kernel typeJiri Olsa1-0/+1
We add kernel module map into machine->kmaps, so it needs to be created as 'struct kmap', which is dependent on its dso having kernel type. Reported-by: Ravi Bangoria <[email protected]> Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Kim Phillips <[email protected]> Tested-by: Ravi Bangoria <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Michael Petlan <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-02-11tools include UAPI: Sync x86's syscalls_64.tbl, generic unistd.h and fcntl.h ↵Arnaldo Carvalho de Melo5-2/+49
to pick up openat2 and pidfd_getfd fddb5d430ad9 ("open: introduce openat2(2) syscall") 9a2cef09c801 ("arch: wire up pidfd_getfd syscall") We also need to grab a copy of uapi/linux/openat2.h since it is now needed by fcntl.h, add it to tools/perf/check_headers.h. $ diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl --- tools/perf/arch/x86/entry/syscalls/syscall_64.tbl 2019-12-20 16:43:57.662429958 -0300 +++ arch/x86/entry/syscalls/syscall_64.tbl 2020-02-10 16:36:22.070012468 -0300 @@ -357,6 +357,8 @@ 433 common fspick __x64_sys_fspick 434 common pidfd_open __x64_sys_pidfd_open 435 common clone3 __x64_sys_clone3/ptregs +437 common openat2 __x64_sys_openat2 +438 common pidfd_getfd __x64_sys_pidfd_getfd # # x32-specific system call numbers start at 512 to avoid cache impact $ Update tools/'s copy of that file: $ cp arch/x86/entry/syscalls/syscall_64.tbl tools/perf/arch/x86/entry/syscalls/syscall_64.tbl See the result: $ diff -u /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c.before /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c --- /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c.before 2020-02-10 16:42:59.010636041 -0300 +++ /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c 2020-02-10 16:43:24.149958337 -0300 @@ -346,5 +346,7 @@ [433] = "fspick", [434] = "pidfd_open", [435] = "clone3", + [437] = "openat2", + [438] = "pidfd_getfd", }; -#define SYSCALLTBL_x86_64_MAX_ID 435 +#define SYSCALLTBL_x86_64_MAX_ID 438 $ Now one can use: perf trace -e openat2,pidfd_getfd To get just those syscalls or use in things like: perf trace -e open* To get all the open variant (open, openat, openat2, etc) or: perf trace pidfd* To get the pidfd syscalls. Cc: Adrian Hunter <[email protected]> Cc: Aleksa Sarai <[email protected]> Cc: Al Viro <[email protected]> Cc: Christian Brauner <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Sargun Dhillon <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-02-10perf symbols: Convert symbol__is_idle() to use strlistKim Phillips1-5/+9
Use the more optimized strlist implementation to do the idle function lookup. Signed-off-by: Kim Phillips <[email protected]> Acked-by: Song Liu <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Cong Wang <[email protected]> Cc: Davidlohr Bueso <[email protected]> Cc: Jin Yao <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-02-10perf symbols: Update the list of kernel idle symbolsKim Phillips1-0/+3
The "acpi_idle_do_entry", "acpi_processor_ffh_cstate_enter", and "idle_cpu" symbols appear in 'perf top' output, at least on AMD systems. Add them to perf's idle_symbols list, so they don't dominate 'perf top' output. Signed-off-by: Kim Phillips <[email protected]> Acked-by: Jiri Olsa <[email protected]> Acked-by: Song Liu <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Cong Wang <[email protected]> Cc: Davidlohr Bueso <[email protected]> Cc: Jin Yao <[email protected]> Cc: Kan Liang <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-02-10perf stat: Don't report a null stalled cycles per insn metricKim Phillips1-6/+0
For data collected on machines with front end stalled cycles supported, such as found on modern AMD CPU families, commit 146540fb545b ("perf stat: Always separate stalled cycles per insn") introduces a new line in CSV output with a leading comma that upsets some automated scripts. Scripts have to use "-e ex_ret_instr" to work around this issue, after upgrading to a version of perf with that commit. We could add "if (have_frontend_stalled && !config->csv_sep)" to the not (total && avg) else clause, to emphasize that CSV users are usually scripts, and are written to do only what is needed, i.e., they wouldn't typically invoke "perf stat" without specifying an explicit event list. But - let alone CSV output - why should users now tolerate a constant 0-reporting extra line in regular terminal output?: BEFORE: $ sudo perf stat --all-cpus -einstructions,cycles -- sleep 1 Performance counter stats for 'system wide': 181,110,981 instructions # 0.58 insn per cycle # 0.00 stalled cycles per insn 309,876,469 cycles 1.002202582 seconds time elapsed The user would not like to see the now permanent: "0.00 stalled cycles per insn" line fixture, as it gives no useful information. So this patch removes the printing of the zeroed stalled cycles line altogether, almost reverting the very original commit fb4605ba47e7 ("perf stat: Check for frontend stalled for metrics"), which seems like it was written to normalize --metric-only column output of common Intel machines at the time: modern Intel machines have ceased to support the genericised frontend stalled metrics AFAICT. AFTER: $ sudo perf stat --all-cpus -einstructions,cycles -- sleep 1 Performance counter stats for 'system wide': 244,071,432 instructions # 0.69 insn per cycle 355,353,490 cycles 1.001862516 seconds time elapsed Output behaviour when stalled cycles is indeed measured is not affected (BEFORE == AFTER): $ sudo perf stat --all-cpus -einstructions,cycles,stalled-cycles-frontend -- sleep 1 Performance counter stats for 'system wide': 247,227,799 instructions # 0.63 insn per cycle # 0.26 stalled cycles per insn 394,745,636 cycles 63,194,485 stalled-cycles-frontend # 16.01% frontend cycles idle 1.002079770 seconds time elapsed Fixes: 146540fb545b ("perf stat: Always separate stalled cycles per insn") Signed-off-by: Kim Phillips <[email protected]> Acked-by: Andi Kleen <[email protected]> Acked-by: Jiri Olsa <[email protected]> Acked-by: Song Liu <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Cong Wang <[email protected]> Cc: Davidlohr Bueso <[email protected]> Cc: Jin Yao <[email protected]> Cc: Kan Liang <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-02-09Merge tag 'perf-urgent-2020-02-09' of ↵Linus Torvalds8-32/+71
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Thomas Gleixner: "A set of fixes and improvements for the perf subsystem: Kernel fixes: - Install cgroup events to the correct CPU context to prevent a potential list double add - Prevent an integer underflow in the perf mlock accounting - Add a missing prototype for arch_perf_update_userpage() Tooling: - Add a missing unlock in the error path of maps__insert() in perf maps. - Fix the build with the latest libbfd - Fix the perf parser so it does not delete parse event terms, which caused a regression for using perf with the ARM CoreSight as the sink configuration was missing due to the deletion. - Fix the double free in the perf CPU map merging test case - Add the missing ustring support for the perf probe command" * tag 'perf-urgent-2020-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf maps: Add missing unlock to maps__insert() error case perf probe: Add ustring support for perf probe command perf: Make perf able to build with latest libbfd perf test: Fix test case Merge cpu map perf parse: Copy string to perf_evsel_config_term perf parse: Refactor 'struct perf_evsel_config_term' kernel/events: Add a missing prototype for arch_perf_update_userpage() perf/cgroups: Install cgroup events to correct cpuctx perf/core: Fix mlock accounting in perf_mmap()
2020-02-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds9-15/+178
Pull networking fixes from David Miller: 1) Unbalanced locking in mwifiex_process_country_ie, from Brian Norris. 2) Fix thermal zone registration in iwlwifi, from Andrei Otcheretianski. 3) Fix double free_irq in sgi ioc3 eth, from Thomas Bogendoerfer. 4) Use after free in mptcp, from Florian Westphal. 5) Use after free in wireguard's root_remove_peer_lists, from Eric Dumazet. 6) Properly access packets heads in bonding alb code, from Eric Dumazet. 7) Fix data race in skb_queue_len(), from Qian Cai. 8) Fix regression in r8169 on some chips, from Heiner Kallweit. 9) Fix XDP program ref counting in hv_netvsc, from Haiyang Zhang. 10) Certain kinds of set link netlink operations can cause a NULL deref in the ipv6 addrconf code. Fix from Eric Dumazet. 11) Don't cancel uninitialized work queue in drop monitor, from Ido Schimmel. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (84 commits) net: thunderx: use proper interface type for RGMII mt76: mt7615: fix max_nss in mt7615_eeprom_parse_hw_cap bpf: Improve bucket_log calculation logic selftests/bpf: Test freeing sockmap/sockhash with a socket in it bpf, sockhash: Synchronize_rcu before free'ing map bpf, sockmap: Don't sleep while holding RCU lock on tear-down bpftool: Don't crash on missing xlated program instructions bpf, sockmap: Check update requirements after locking drop_monitor: Do not cancel uninitialized work item mlxsw: spectrum_dpipe: Add missing error path mlxsw: core: Add validation of hardware device types for MGPIR register mlxsw: spectrum_router: Clear offload indication from IPv6 nexthops on abort selftests: mlxsw: Add test cases for local table route replacement mlxsw: spectrum_router: Prevent incorrect replacement of local table routes net: dsa: microchip: enable module autoprobe ipv6/addrconf: fix potential NULL deref in inet6_set_link_af() dpaa_eth: support all modes with rate adapting PHYs net: stmmac: update pci platform data to use phy_interface net: stmmac: xgmac: fix missing IFF_MULTICAST checki in dwxgmac2_set_filter net: stmmac: fix missing IFF_MULTICAST check in dwmac4_set_filter ...
2020-02-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfDavid S. Miller5-5/+79
Daniel Borkmann says: ==================== pull-request: bpf 2020-02-07 The following pull-request contains BPF updates for your *net* tree. We've added 15 non-merge commits during the last 10 day(s) which contain a total of 12 files changed, 114 insertions(+), 31 deletions(-). The main changes are: 1) Various BPF sockmap fixes related to RCU handling in the map's tear- down code, from Jakub Sitnicki. 2) Fix macro state explosion in BPF sk_storage map when calculating its bucket_log on allocation, from Martin KaFai Lau. 3) Fix potential BPF sockmap update race by rechecking socket's established state under lock, from Lorenz Bauer. 4) Fix crash in bpftool on missing xlated instructions when kptr_restrict sysctl is set, from Toke Høiland-Jørgensen. 5) Fix i40e's XSK wakeup code to return proper error in busy state and various misc fixes in xdpsock BPF sample code, from Maciej Fijalkowski. 6) Fix the way modifiers are skipped in BTF in the verifier while walking pointers to avoid program rejection, from Alexei Starovoitov. 7) Fix Makefile for runqslower BPF tool to i) rebuild on libbpf changes and ii) to fix undefined reference linker errors for older gcc version due to order of passed gcc parameters, from Yulia Kartseva and Song Liu. 8) Fix a trampoline_count BPF kselftest warning about missing braces around initializer, from Andrii Nakryiko. 9) Fix up redundant "HAVE" prefix from large INSN limit kernel probe in bpftool, from Michal Rostecki. ==================== Signed-off-by: David S. Miller <[email protected]>
2020-02-07selftests/bpf: Test freeing sockmap/sockhash with a socket in itJakub Sitnicki1-0/+74
Commit 7e81a3530206 ("bpf: Sockmap, ensure sock lock held during tear down") introduced sleeping issues inside RCU critical sections and while holding a spinlock on sockmap/sockhash tear-down. There has to be at least one socket in the map for the problem to surface. This adds a test that triggers the warnings for broken locking rules. Not a fix per se, but rather tooling to verify the accompanying fixes. Run on a VM with 1 vCPU to reproduce the warnings. Fixes: 7e81a3530206 ("bpf: Sockmap, ensure sock lock held during tear down") Signed-off-by: Jakub Sitnicki <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: John Fastabend <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-02-07bpftool: Don't crash on missing xlated program instructionsToke Høiland-Jørgensen1-1/+1
Turns out the xlated program instructions can also be missing if kptr_restrict sysctl is set. This means that the previous fix to check the jited_prog_insns pointer was insufficient; add another check of the xlated_prog_insns pointer as well. Fixes: 5b79bcdf0362 ("bpftool: Don't crash on missing jited insns or ksyms") Fixes: cae73f233923 ("bpftool: use bpf_program__get_prog_info_linear() in prog.c:do_dump()") Signed-off-by: Toke Høiland-Jørgensen <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Reviewed-by: Quentin Monnet <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-02-07selftests: mlxsw: Add test cases for local table route replacementIdo Schimmel1-0/+76
Test that routes in the main table do not replace identical routes in the local table and that routes in the local table do replace identical routes in the main table. Signed-off-by: Ido Schimmel <[email protected]> Acked-by: Jiri Pirko <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-02-06Merge tag 'kvm-5.6-2' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds4-0/+240
Pull more KVM updates from Paolo Bonzini: "s390: - fix register corruption - ENOTSUPP/EOPNOTSUPP mixed - reset cleanups/fixes - selftests x86: - Bug fixes and cleanups - AMD support for APIC virtualization even in combination with in-kernel PIT or IOAPIC. MIPS: - Compilation fix. Generic: - Fix refcount overflow for zero page" * tag 'kvm-5.6-2' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (42 commits) KVM: vmx: delete meaningless vmx_decache_cr0_guest_bits() declaration KVM: x86: Mark CR4.UMIP as reserved based on associated CPUID bit x86: vmxfeatures: rename features for consistency with KVM and manual KVM: SVM: relax conditions for allowing MSR_IA32_SPEC_CTRL accesses KVM: x86: Fix perfctr WRMSR for running counters x86/kvm/hyper-v: don't allow to turn on unsupported VMX controls for nested guests x86/kvm/hyper-v: move VMX controls sanitization out of nested_enable_evmcs() kvm: mmu: Separate generating and setting mmio ptes kvm: mmu: Replace unsigned with unsigned int for PTE access KVM: nVMX: Remove stale comment from nested_vmx_load_cr3() KVM: MIPS: Fold comparecount_func() into comparecount_wakeup() KVM: MIPS: Fix a build error due to referencing not-yet-defined function x86/kvm: do not setup pv tlb flush when not paravirtualized KVM: fix overflow of zero page refcount with ksm running KVM: x86: Take a u64 when checking for a valid dr7 value KVM: x86: use raw clock values consistently KVM: x86: reorganize pvclock_gtod_data members KVM: nVMX: delete meaningless nested_vmx_run() declaration KVM: SVM: allow AVIC without split irqchip kvm: ioapic: Lazy update IOAPIC EOI ...
2020-02-06mptcp: fix use-after-free for ipv6Florian Westphal1-0/+9
Turns out that when we accept a new subflow, the newly created inet_sk(tcp_sk)->pinet6 points at the ipv6_pinfo structure of the listener socket. This wasn't caught by the selftest because it closes the accepted fd before the listening one. adding a close(listenfd) after accept returns is enough: BUG: KASAN: use-after-free in inet6_getname+0x6ba/0x790 Read of size 1 at addr ffff88810e310866 by task mptcp_connect/2518 Call Trace: inet6_getname+0x6ba/0x790 __sys_getpeername+0x10b/0x250 __x64_sys_getpeername+0x6f/0xb0 also alter test program to exercise this. Reported-by: Christoph Paasch <[email protected]> Signed-off-by: Florian Westphal <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-02-06Merge tag 'trace-v5.6-2' of ↵Linus Torvalds33-5/+689
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing updates from Steven Rostedt: - Added new "bootconfig". This looks for a file appended to initrd to add boot config options, and has been discussed thoroughly at Linux Plumbers. Very useful for adding kprobes at bootup. Only enabled if "bootconfig" is on the real kernel command line. - Created dynamic event creation. Merges common code between creating synthetic events and kprobe events. - Rename perf "ring_buffer" structure to "perf_buffer" - Rename ftrace "ring_buffer" structure to "trace_buffer" Had to rename existing "trace_buffer" to "array_buffer" - Allow trace_printk() to work withing (some) tracing code. - Sort of tracing configs to be a little better organized - Fixed bug where ftrace_graph hash was not being protected properly - Various other small fixes and clean ups * tag 'trace-v5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (88 commits) bootconfig: Show the number of nodes on boot message tools/bootconfig: Show the number of bootconfig nodes bootconfig: Add more parse error messages bootconfig: Use bootconfig instead of boot config ftrace: Protect ftrace_graph_hash with ftrace_sync ftrace: Add comment to why rcu_dereference_sched() is open coded tracing: Annotate ftrace_graph_notrace_hash pointer with __rcu tracing: Annotate ftrace_graph_hash pointer with __rcu bootconfig: Only load bootconfig if "bootconfig" is on the kernel cmdline tracing: Use seq_buf for building dynevent_cmd string tracing: Remove useless code in dynevent_arg_pair_add() tracing: Remove check_arg() callbacks from dynevent args tracing: Consolidate some synth_event_trace code tracing: Fix now invalid var_ref_vals assumption in trace action tracing: Change trace_boot to use synth_event interface tracing: Move tracing selftests to bottom of menu tracing: Move mmio tracer config up with the other tracers tracing: Move tracing test module configs together tracing: Move all function tracing configs together tracing: Documentation for in-kernel synthetic event API ...
2020-02-05tools/bootconfig: Show the number of bootconfig nodesMasami Hiramatsu1-0/+1
Show the number of bootconfig nodes when applying new bootconfig to initrd. Since there are limitations of bootconfig not only in its filesize, but also the number of nodes, the number should be shown when applying so that user can get the feeling of scale of current bootconfig. Link: http://lkml.kernel.org/r/158091061337.27924.10886706631693823982.stgit@devnote2 Signed-off-by: Masami Hiramatsu <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]>
2020-02-05tools/bpf/runqslower: Rebuild libbpf.a on libbpf source changeSong Liu1-1/+1
Add missing dependency of $(BPFOBJ) to $(LIBBPF_SRC), so that running make in runqslower/ will rebuild libbpf.a when there is change in libbpf/. Fixes: 9c01546d26d2 ("tools/bpf: Add runqslower tool to tools/bpf") Signed-off-by: Song Liu <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-02-05Merge tag 'kvm-s390-next-5.6-1' of ↵Paolo Bonzini4-0/+240
git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD KVM: s390: Fixes and cleanups for 5.6 - fix register corruption - ENOTSUPP/EOPNOTSUPP mixed - reset cleanups/fixes - selftests
2020-02-05wireguard: selftests: tie socket waiting to target pidJason A. Donenfeld1-9/+8
Without this, we wind up proceeding too early sometimes when the previous process has just used the same listening port. So, we tie the listening socket query to the specific pid we're interested in. Signed-off-by: Jason A. Donenfeld <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-02-05wireguard: selftests: cleanup CONFIG_ENABLE_WARN_DEPRECATEDKrzysztof Kozlowski1-1/+0
CONFIG_ENABLE_WARN_DEPRECATED is gone since commit 771c035372a0 ("deprecate the '__deprecated' attribute warnings entirely and for good"). Signed-off-by: Krzysztof Kozlowski <[email protected]> Signed-off-by: Jason A. Donenfeld <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-02-05wireguard: selftests: ensure non-addition of peers with failed precomputationJason A. Donenfeld1-0/+6
Ensure that peers with low order points are ignored, both in the case where we already have a device private key and in the case where we do not. This adds points that naturally give a zero output. Signed-off-by: Jason A. Donenfeld <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-02-05Merge tag 'perf-core-for-mingo-5.6-20200201' of ↵Ingo Molnar8-32/+71
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: perf maps: Cengiz Can: - Add missing unlock to maps__insert() error case. srcline: Changbin Du: - Make perf able to build with latest libbfd. perf parse: Leo Yan: - Keep copy of string in perf_evsel_config_term() to fix sink terms processing in ARM CoreSight. perf test: Thomas Richter: - Fix test case Merge cpu map, removing extra reference count drop that causes a segfault on s/390. perf probe: Thomas Richter: - Add ustring support for perf probe command Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2020-02-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds6-1/+241
Pull networking fixes from David Miller: 1) Use after free in rxrpc_put_local(), from David Howells. 2) Fix 64-bit division error in mlxsw, from Nathan Chancellor. 3) Make sure we clear various bits of TCP state in response to tcp_disconnect(). From Eric Dumazet. 4) Fix netlink attribute policy in cls_rsvp, from Eric Dumazet. 5) txtimer must be deleted in stmmac suspend(), from Nicolin Chen. 6) Fix TC queue mapping in bnxt_en driver, from Michael Chan. 7) Various netdevsim fixes from Taehee Yoo (use of uninitialized data, snapshot panics, stack out of bounds, etc.) 8) cls_tcindex changes hash table size after allocating the table, fix from Cong Wang. 9) Fix regression in the enforcement of session ID uniqueness in l2tp. We only have to enforce uniqueness for IP based tunnels not UDP ones. From Ridge Kennedy. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (46 commits) gtp: use __GFP_NOWARN to avoid memalloc warning l2tp: Allow duplicate session creation with UDP r8152: Add MAC passthrough support to new device net_sched: fix an OOB access in cls_tcindex qed: Remove set but not used variable 'p_link' tc-testing: add missing 'nsPlugin' to basic.json tc-testing: fix eBPF tests failure on linux fresh clones net: hsr: fix possible NULL deref in hsr_handle_frame() netdevsim: remove unused sdev code netdevsim: use __GFP_NOWARN to avoid memalloc warning netdevsim: use IS_ERR instead of IS_ERR_OR_NULL for debugfs netdevsim: fix stack-out-of-bounds in nsim_dev_debugfs_init() netdevsim: fix panic in nsim_dev_take_snapshot_write() netdevsim: disable devlink reload when resources are being used netdevsim: fix using uninitialized resources bnxt_en: Fix TC queue mapping. bnxt_en: Fix logic that disables Bus Master during firmware reset. bnxt_en: Fix RDMA driver failure with SRIOV after firmware reset. bnxt_en: Refactor logic to re-enable SRIOV after firmware reset detected. net: stmmac: Delete txtimer in suspend() ...
2020-02-04Merge tag 'powerpc-5.6-1' of ↵Linus Torvalds5-7/+183
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: "A pretty small batch for us, and apologies for it being a bit late, I wanted to sneak Christophe's user_access_begin() series in. Summary: - Implement user_access_begin() and friends for our platforms that support controlling kernel access to userspace. - Enable CONFIG_VMAP_STACK on 32-bit Book3S and 8xx. - Some tweaks to our pseries IOMMU code to allow SVMs ("secure" virtual machines) to use the IOMMU. - Add support for CLOCK_{REALTIME/MONOTONIC}_COARSE to the 32-bit VDSO, and some other improvements. - A series to use the PCI hotplug framework to control opencapi card's so that they can be reset and re-read after flashing a new FPGA image. As well as other minor fixes and improvements as usual. Thanks to: Alastair D'Silva, Alexandre Ghiti, Alexey Kardashevskiy, Andrew Donnellan, Aneesh Kumar K.V, Anju T Sudhakar, Bai Yingjie, Chen Zhou, Christophe Leroy, Frederic Barrat, Greg Kurz, Jason A. Donenfeld, Joel Stanley, Jordan Niethe, Julia Lawall, Krzysztof Kozlowski, Laurent Dufour, Laurentiu Tudor, Linus Walleij, Michael Bringmann, Nathan Chancellor, Nicholas Piggin, Nick Desaulniers, Oliver O'Halloran, Peter Ujfalusi, Pingfan Liu, Ram Pai, Randy Dunlap, Russell Currey, Sam Bobroff, Sebastian Andrzej Siewior, Shawn Anastasio, Stephen Rothwell, Steve Best, Sukadev Bhattiprolu, Thiago Jung Bauermann, Tyrel Datwyler, Vaibhav Jain" * tag 'powerpc-5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (131 commits) powerpc: configs: Cleanup old Kconfig options powerpc/configs/skiroot: Enable some more hardening options powerpc/configs/skiroot: Disable xmon default & enable reboot on panic powerpc/configs/skiroot: Enable security features powerpc/configs/skiroot: Update for symbol movement only powerpc/configs/skiroot: Drop default n CONFIG_CRYPTO_ECHAINIV powerpc/configs/skiroot: Drop HID_LOGITECH powerpc/configs: Drop NET_VENDOR_HP which moved to staging powerpc/configs: NET_CADENCE became NET_VENDOR_CADENCE powerpc/configs: Drop CONFIG_QLGE which moved to staging powerpc: Do not consider weak unresolved symbol relocations as bad powerpc/32s: Fix kasan_early_hash_table() for CONFIG_VMAP_STACK powerpc: indent to improve Kconfig readability powerpc: Provide initial documentation for PAPR hcalls powerpc: Implement user_access_save() and user_access_restore() powerpc: Implement user_access_begin and friends powerpc/32s: Prepare prevent_user_access() for user_access_end() powerpc/32s: Drop NULL addr verification powerpc/kuap: Fix set direction in allow/prevent_user_access() powerpc/32s: Fix bad_kuap_fault() ...
2020-02-04tc-testing: add missing 'nsPlugin' to basic.jsonDavide Caratti1-0/+51
since tdc tests for cls_basic need $DEV1, use 'nsPlugin' so that the following command can be run without errors: [root@f31 tc-testing]# ./tdc.py -c basic Fixes: 4717b05328ba ("tc-testing: Introduced tdc tests for basic filter") Signed-off-by: Davide Caratti <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-02-04tc-testing: fix eBPF tests failure on linux fresh clonesDavide Caratti1-1/+1
when the following command is done on a fresh clone of the kernel tree, [root@f31 tc-testing]# ./tdc.py -c bpf test cases that need to build the eBPF sample program fail systematically, because 'buildebpfPlugin' is unable to install the kernel headers (i.e, the 'khdr' target fails). Pass the correct environment to 'make', in place of ENVIR, to allow running these tests. Fixes: 4c2d39bd40c1 ("tc-testing: use a plugin to build eBPF program") Signed-off-by: Davide Caratti <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-02-04bitops: more BITS_TO_* macrosYury Norov1-4/+5
Introduce BITS_TO_U64, BITS_TO_U32 and BITS_TO_BYTES as they are handy in the following patches (BITS_TO_U32 specifically). Reimplement tools/ version of the macros according to the kernel implementation. Also fix indentation for BITS_PER_TYPE definition. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Yury Norov <[email protected]> Reviewed-by: Andy Shevchenko <[email protected]> Cc: Amritha Nambiar <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Chris Wilson <[email protected]> Cc: Kees Cook <[email protected]> Cc: Matthew Wilcox <[email protected]> Cc: Miklos Szeredi <[email protected]> Cc: Rasmus Villemoes <[email protected]> Cc: Steffen Klassert <[email protected]> Cc: "Tobin C . Harding" <[email protected]> Cc: Vineet Gupta <[email protected]> Cc: Will Deacon <[email protected]> Cc: Willem de Bruijn <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2020-02-04selftests/bpf: Fix trampoline_count.c selftest compilation warningAndrii Nakryiko1-1/+1
Fix missing braces compilation warning in trampoline_count test: .../prog_tests/trampoline_count.c: In function ‘test_trampoline_count’: .../prog_tests/trampoline_count.c:49:9: warning: missing braces around initializer [-Wmissing-braces] struct inst inst[MAX_TRAMP_PROGS] = { 0 }; ^ .../prog_tests/trampoline_count.c:49:9: warning: (near initialization for ‘inst[0]’) [-Wmissing-braces] Fixes: d633d57902a5 ("selftest/bpf: Add test for allowed trampolines count") Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Yonghong Song <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-02-04bpftool: Remove redundant "HAVE" prefix from the large INSN limit checkMichal Rostecki1-1/+1
"HAVE" prefix is already applied by default to feature macros and before this change, the large INSN limit macro had the incorrect name with double "HAVE". Fixes: 2faef64aa6b3 ("bpftool: Add misc section and probe for large INSN limit") Signed-off-by: Michal Rostecki <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Yonghong Song <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-02-03Merge tag 'hyperv-next-signed' of ↵Linus Torvalds3-31/+91
git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux Pull Hyper-V updates from Sasha Levin: - Most of the commits here are work to enable host-initiated hibernation support by Dexuan Cui. - Fix for a warning shown when host sends non-aligned balloon requests by Tianyu Lan. * tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: hv_utils: Add the support of hibernation hv_utils: Support host-initiated hibernation request hv_utils: Support host-initiated restart request Tools: hv: Reopen the devices if read() or write() returns errors video: hyperv: hyperv_fb: Use physical memory for fb on HyperV Gen 1 VMs. Drivers: hv: vmbus: Ignore CHANNELMSG_TL_CONNECT_RESULT(23) video: hyperv_fb: Fix hibernation for the deferred IO feature Input: hyperv-keyboard: Add the support of hibernation hv_balloon: Balloon up according to request page number
2020-02-02selftests: net: Add FIN_ACK processing order related latency spike testSeongJae Park4-0/+189
This commit adds a test for FIN_ACK process races related reconnection latency spike issues. The issue has described and solved by the previous commit ("tcp: Reduce SYN resend delay if a suspicous ACK is received"). The test program is configured with a server and a client process. The server creates and binds a socket to a port that dynamically allocated, listen on it, and start a infinite loop. Inside the loop, it accepts connection, reads 4 bytes from the socket, and closes the connection. The client is constructed as an infinite loop. Inside the loop, it creates a socket with LINGER and NODELAY option, connect to the server, send 4 bytes data, try read some data from server. After the read() returns, it measure the latency from the beginning of this loop to this point and if the latency is larger than 1 second (spike), print a message. Reviewed-by: Eric Dumazet <[email protected]> Signed-off-by: SeongJae Park <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2020-02-01Merge branch 'topic/user-access-begin' into nextMichael Ellerman7-7/+27
Merge the user_access_begin() series from Christophe. This is based on a commit from Linus that went into v5.5-rc7.
2020-01-31Merge tag 'pm-5.6-rc1-2' of ↵Linus Torvalds5-46/+108
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more power manadement updates from Rafael Wysocki: "Prevent cpufreq from creating excessively large stack frames and fix the handling of devices deleted during system-wide resume in the PM core (Rafael Wysocki), revert a problematic commit affecting the cpupower utility and correct its man page (Thomas Renninger, Brahadambal Srinivasan), and improve the intel_pstate_tracer utility (Doug Smythies)" * tag 'pm-5.6-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: tools/power/x86/intel_pstate_tracer: change several graphs to autoscale y-axis tools/power/x86/intel_pstate_tracer: changes for python 3 compatibility Correction to manpage of cpupower cpufreq: Avoid creating excessively large stack frames PM: core: Fix handling of devices deleted during system-wide resume cpupower: Revert library ABI changes from commit ae2917093fb60bdc1ed3e
2020-01-31Merge branch 'akpm' (patches from Andrew)Linus Torvalds2-3/+7
Pull updates from Andrew Morton: "Most of -mm and quite a number of other subsystems: hotfixes, scripts, ocfs2, misc, lib, binfmt, init, reiserfs, exec, dma-mapping, kcov. MM is fairly quiet this time. Holidays, I assume" * emailed patches from Andrew Morton <[email protected]>: (118 commits) kcov: ignore fault-inject and stacktrace include/linux/io-mapping.h-mapping: use PHYS_PFN() macro in io_mapping_map_atomic_wc() execve: warn if process starts with executable stack reiserfs: prevent NULL pointer dereference in reiserfs_insert_item() init/main.c: fix misleading "This architecture does not have kernel memory protection" message init/main.c: fix quoted value handling in unknown_bootoption init/main.c: remove unnecessary repair_env_string in do_initcall_level init/main.c: log arguments and environment passed to init fs/binfmt_elf.c: coredump: allow process with empty address space to coredump fs/binfmt_elf.c: coredump: delete duplicated overflow check fs/binfmt_elf.c: coredump: allocate core ELF header on stack fs/binfmt_elf.c: make BAD_ADDR() unlikely fs/binfmt_elf.c: better codegen around current->mm fs/binfmt_elf.c: don't copy ELF header around fs/binfmt_elf.c: fix ->start_code calculation fs/binfmt_elf.c: smaller code generation around auxv vector fill lib/find_bit.c: uninline helper _find_next_bit() lib/find_bit.c: join _find_next_bit{_le} uapi: rename ext2_swab() to swab() and share globally in swab.h lib/scatterlist.c: adjust indentation in __sg_alloc_table ...
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