- 20 Jul, 2022 18 commits
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Adrian Hunter authored
Add machine_pid and vcpu to the intel-pt-events.py script. Signed-off-by:
Adrian Hunter <adrian.hunter@intel.com> Acked-by:
Ian Rogers <irogers@google.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: kvm@vger.kernel.org Link: https://lore.kernel.org/r/20220711093218.10967-20-adrian.hunter@intel.comSigned-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com>
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Adrian Hunter authored
Add machine_pid and vcpu to python sample events and context switch events. Signed-off-by:
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Adrian Hunter authored
Add machine_pid and vcpu to struct perf_record_auxtrace_error. The existing fmt member is used to identify the new format. The new members make it possible to easily differentiate errors from guest machines. Signed-off-by:
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Adrian Hunter authored
Add machine_pid and vcpu to struct perf_dlfilter_sample. The 'size' can be used to determine if the values are present, however machine_pid is zero if unused in any case. vcpu should be ignored if machine_pid is zero. Signed-off-by:
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Adrian Hunter authored
Add fields machine_pid and vcpu. These are displayed only if machine_pid is non-zero. Signed-off-by:
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Adrian Hunter authored
If machine_pid is set, use it to find the guest machine. Signed-off-by:
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Adrian Hunter authored
When parsing a sample with a sample ID, copy machine_pid and vcpu from perf_sample_id to perf_sample. Note, machine_pid will be zero when unused, so only a non-zero value represents a guest machine. vcpu should be ignored if machine_pid is zero. Note also, machine_pid is used with events that have come from injecting a guest perf.data file, however guest events recorded on the host (i.e. using perf kvm) have the (QEMU) hypervisor process pid to identify them - refer machines__find_for_cpumode(). Signed-off-by:
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Adrian Hunter authored
It is possible to know which guest machine was running at a point in time based on the PID of the currently running host thread. That is, perf identifies guest machines by the PID of the hypervisor. To determine the guest CPU, put it on the hypervisor (QEMU) thread for that VCPU. This is done when processing the id_index which provides the necessary information. Signed-off-by:
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Adrian Hunter authored
Now that id_index has machine_pid, use it to create guest machines. Create the guest machines with an idle thread because guest events for "swapper" will be possible. Signed-off-by:
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Adrian Hunter authored
When injecting events from a guest perf.data file, the events will have separate sample ID numbers. These ID numbers can then be used to determine which machine an event belongs to. To facilitate that, add machine_pid and vcpu to id_index records. For backward compatibility, these are added at the end of the record, and the length of the record is used to determine if they are present or not. Note, this is needed because the events from a guest perf.data file contain the pid/tid of the process running at that time inside the VM not the pid/tid of the (QEMU) hypervisor thread. So a way is needed to relate guest events back to the guest machine and VCPU, and using sample ID numbers for that is relatively simple and convenient. Signed-off-by:
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Adrian Hunter authored
realname() returns NULL if the file is not in the file system, but we can still remove it from the build ID cache in that case, so continue and attempt the purge with the name provided. Signed-off-by:
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Adrian Hunter authored
When the guestmount option is used, a guest machine's file system mount point is recorded in machine->root_dir. perf already iterates guest machines when adding files to the build ID cache, but does not take machine->root_dir into account. Use machine->root_dir to find files for guest build IDs, and add them to the build ID cache using the "proper" name i.e. relative to the guest root directory not the host root directory. Signed-off-by:
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Adrian Hunter authored
When reviewing the results of perf inject, it is useful to be able to see the events in the order they appear in the file. So add --dump-unsorted-raw-trace option to do an unsorted dump. Signed-off-by:
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Adrian Hunter authored
Add perf_event__synthesize_id_sample() to enable the synthesis of ID samples. This is needed by perf inject. When injecting events from a guest perf.data file, there is a possibility that the sample ID numbers conflict. In that case, perf_event__synthesize_id_sample() can be used to re-write the ID sample. Signed-off-by:
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Adrian Hunter authored
Factor out evsel__id_hdr_size() so it can be reused. This is needed by perf inject. When injecting events from a guest perf.data file, there is a possibility that the sample ID numbers conflict. To re-write an ID sample, the old one needs to be removed first, which means determining how big it is with evsel__id_hdr_size() and then subtracting that from the event size. Signed-off-by:
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Adrian Hunter authored
Export perf_event__process_finished_round() so it can be used elsewhere. This is needed in perf inject to obey finished-round ordering. Signed-off-by:
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Adrian Hunter authored
Allow callers to get the ordered_events last flush timestamp. This is needed in perf inject to obey finished-round ordering when injecting additional events (e.g. from a guest perf.data file) with timestamps. Any additional events that have timestamps before the last flush time must be injected before the corresponding FINISHED_ROUND event. Signed-off-by:
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Adrian Hunter authored
Export dsos__for_each_with_build_id() so it can be used elsewhere. Signed-off-by:
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- 19 Jul, 2022 1 commit
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Adrian Hunter authored
Synthesized MMAP events have zero ino_generation, so do not compare them to DSOs with a real ino_generation otherwise we end up with a DSO without a build id. Fixes: 0e3149f8 ("perf dso: Move dso_id from 'struct map' to 'struct dso'") Signed-off-by:
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- 18 Jul, 2022 2 commits
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Blake Jones authored
This new option displays all of the information needed to do external BuildID-based symbolization of kernel stack traces, such as those collected by bpf_get_stackid(). For each kernel module plus the main kernel, it displays the BuildID, the start and end virtual addresses of that module's text range (rounded out to page boundaries), and the pathname of the module. When run as a non-privileged user, the actual addresses of the modules' text ranges are not available, so the tools displays "0, <text length>" for kernel modules and "0, 0xffffffffffffffff" for the kernel itself. Sample output: root# perf buildid-list -m cf6df852fd4da122d616153353cc8f560fd12fe0 ffffffffa5400000 ffffffffa6001e27 [kernel.kallsyms] 1aa7209aa2acb067d66ed6cf7676d65066384d61 ffffffffc0087000 ffffffffc008b000 /lib/modules/5.15.15-1rodete2-amd64/kernel/crypto/sha512_generic.ko 3857815b5bf0183697b68f8fe0ea06121644041e ffffffffc008c000 ffffffffc0098000 /lib/modules/5.15.15-1rodete2-amd64/kernel/arch/x86/crypto/sha512-ssse3.ko 4081fde0bca2bc097cb3e9d1efcb836047d485f1 ffffffffc0099000 ffffffffc009f000 /lib/modules/5.15.15-1rodete2-amd64/kernel/drivers/acpi/button.ko 1ef81ba4890552ea6b0314f9635fc43fc8cef568 ffffffffc00a4000 ffffffffc00aa000 /lib/modules/5.15.15-1rodete2-amd64/kernel/crypto/cryptd.ko cc5c985506cb240d7d082b55ed260cbb851f983e ffffffffc00af000 ffffffffc00b6000 /lib/modules/5.15.15-1rodete2-amd64/kernel/drivers/i2c/busses/i2c-piix4.ko [...] Committer notes: u64 formatter should be PRIx64 for printing as hex numbers, fix this: 28 5.28 debian:experimental-x-mips : FAIL gcc version 11.2.0 (Debian 11.2.0-18) builtin-buildid-list.c: In function 'buildid__map_cb': builtin-buildid-list.c:32:24: error: format '%lx' expects argument of type 'long unsigned int', but argument 3 has type 'u64' {aka 'long long unsigned int'} [-Werror=format=] 32 | printf("%s %16lx %16lx", bid_buf, map->start, map->end); | ~~~~^ ~~~~~~~~~~ | | | | long unsigned int u64 {aka long long unsigned int} | %16llx builtin-buildid-list.c:32:30: error: format '%lx' expects argument of type 'long unsigned int', but argument 4 has type 'u64' {aka 'long long unsigned int'} [-Werror=format=] 32 | printf("%s %16lx %16lx", bid_buf, map->start, map->end); | ~~~~^ ~~~~~~~~ | | | | long unsigned int u64 {aka long long unsigned int} | %16llx cc1: all warnings being treated as errors Signed-off-by:Blake Jones <blakejones@google.com> Acked-by:
Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220629213632.3899212-1-blakejones@google.comSigned-off-by:
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Arnaldo Carvalho de Melo authored
To update the perf/core codebase. Fix conflict by moving arch__post_evsel_config(evsel, attr) to the end of evsel__config(), after what was added in: 49c692b7 ("perf offcpu: Accept allowed sample types only") Signed-off-by:
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- 17 Jul, 2022 15 commits
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Linus Torvalds authored
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git://anongit.freedesktop.org/drm/drm-intelLinus Torvalds authored
Pull intel drm build fix from Rodrigo Vivi: "Our 'dim' flow has a problem with fixes of fixes getting missed. We need to take a look on that later. Meanwhile, please allow me to quickly propagate this fix for the 32-bit build issue here upstream" * tag 'drm-intel-fixes-2022-07-17' of git://anongit.freedesktop.org/drm/drm-intel: drm/i915/ttm: fix 32b build
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Linus Torvalds authored
Merge tag 'perf-tools-fixes-for-v5.19-2022-07-17' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull perf tools fixes from Arnaldo Carvalho de Melo: - Fix SIGSEGV when processing syscall args in perf.data files in 'perf trace' - Sync kvm, msr-index and cpufeatures headers with the kernel sources - Fix 'convert perf time to TSC' 'perf test': - No need to open events twice - Fix finding correct event on hybrid systems * tag 'perf-tools-fixes-for-v5.19-2022-07-17' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: perf trace: Fix SIGSEGV when processing syscall args perf tests: Fix Convert perf time to TSC test for hybrid perf tests: Stop Convert perf time to TSC test opening events twice tools arch x86: Sync the msr-index.h copy with the kernel sources tools headers cpufeatures: Sync with the kernel sources tools headers UAPI: Sync linux/kvm.h with the kernel sources
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Matthew Auld authored
Since segment_pages is no longer a compile time constant, it looks the DIV_ROUND_UP(node->size, segment_pages) breaks the 32b build. Simplest is just to use the ULL variant, but really we should need not need more than u32 for the page alignment (also we are limited by that due to the sg->length type), so also make it all u32. Reported-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Fixes: aff1e0b0 ("drm/i915/ttm: fix sg_table construction") Signed-off-by:
Matthew Auld <matthew.auld@intel.com> Cc: Nirmoy Das <nirmoy.das@linux.intel.com> Reviewed-by:
Nirmoy Das <nirmoy.das@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220712174050.592550-1-matthew.auld@intel.com (cherry picked from commit 9306b2b2) Signed-off-by:
Rodrigo Vivi <rodrigo.vivi@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull perf fix from Borislav Petkov: - A single data race fix on the perf event cleanup path to avoid endless loops due to insufficient locking * tag 'perf_urgent_for_v5.19_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/core: Fix data race between perf_event_set_output() and perf_mmap_close()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fixes from Borislav Petkov: - Improve the check whether the kernel supports WP mappings so that it can accomodate a XenPV guest due to how the latter is setting up the PAT machinery - Now that the retbleed nightmare is public, here's the first round of fallout fixes: * Fix a build failure on 32-bit due to missing include * Remove an untraining point in espfix64 return path * other small cleanups * tag 'x86_urgent_for_v5.19_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/bugs: Remove apostrophe typo um: Add missing apply_returns() x86/entry: Remove UNTRAIN_RET from native_irq_return_ldt x86/bugs: Mark retbleed_strings static x86/pat: Fix x86_has_pat_wp() x86/asm/32: Fix ANNOTATE_UNRET_SAFE use on 32-bit -
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linuxLinus Torvalds authored
Pull gpio fix from Bartosz Golaszewski: - fix a configfs attribute of the gpio-sim module * tag 'gpio-fixes-for-v5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: gpio: sim: fix the chip_name configfs item
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/inputLinus Torvalds authored
Pull input fixes from Dmitry Torokhov: - fix Goodix driver to properly behave on the Aya Neo Next - some more sanity checks in usbtouchscreen driver - a tweak in wm97xx driver in preparation for remove() to return void - a clarification in input core regarding units of measurement for resolution on touch events. * tag 'input-for-v5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: document the units for resolution of size axes Input: goodix - call acpi_device_fix_up_power() in some cases Input: wm97xx - make .remove() obviously always return 0 Input: usbtouchscreen - add driver_info sanity check
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git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supplyLinus Torvalds authored
Pull power supply fixes from Sebastian Reichel: - power-supply core temperature interpolation regression fix for incorrect boundaries - ab8500 needs to destroy its work queues in error paths - Fix old DT refcount leak in arm-versatile * tag 'for-v5.19-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: power: supply: core: Fix boundary conditions in interpolation power/reset: arm-versatile: Fix refcount leak in versatile_reboot_probe power: supply: ab8500_fg: add missing destroy_workqueue in ab8500_fg_probe
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Naveen N. Rao authored
On powerpc, 'perf trace' is crashing with a SIGSEGV when trying to process a perf.data file created with 'perf trace record -p': #0 0x00000001225b8988 in syscall_arg__scnprintf_augmented_string <snip> at builtin-trace.c:1492 #1 syscall_arg__scnprintf_filename <snip> at builtin-trace.c:1492 #2 syscall_arg__scnprintf_filename <snip> at builtin-trace.c:1486 #3 0x00000001225bdd9c in syscall_arg_fmt__scnprintf_val <snip> at builtin-trace.c:1973 #4 syscall__scnprintf_args <snip> at builtin-trace.c:2041 #5 0x00000001225bff04 in trace__sys_enter <snip> at builtin-trace.c:2319 That points to the below code in tools/perf/builtin-trace.c: /* * If this is raw_syscalls.sys_enter, then it always comes with the 6 possible * arguments, even if the syscall being handled, say "openat", uses only 4 arguments * this breaks syscall__augmented_args() check for augmented args, as we calculate * syscall->args_size using each syscalls:sys_enter_NAME tracefs format file, * so when handling, say the openat syscall, we end up getting 6 args for the * raw_syscalls:sys_enter event, when we expected just 4, we end up mistakenly * thinking that the extra 2 u64 args are the augmented filename, so just check * here and avoid using augmented syscalls when the evsel is the raw_syscalls one. */ if (evsel != trace->syscalls.events.sys_enter) augmented_args = syscall__augmented_args(sc, sample, &augmented_args_size, trace->raw_augmented_syscalls_args_size); As the comment points out, we should not be trying to augment the args for raw_syscalls. However, when processing a perf.data file, we are not initializing those properly. Fix the same. Reported-by:
Claudio Carvalho <cclaudio@linux.ibm.com> Signed-off-by:
Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lore.kernel.org/lkml/20220707090900.572584-1-naveen.n.rao@linux.vnet.ibm.comSigned-off-by:
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Adrian Hunter authored
The test does not always correctly determine the number of events for hybrids, nor allow for more than 1 evsel when parsing. Fix by iterating the events actually created and getting the correct evsel for the events processed. Fixes: d9da6f70 ("perf tests: Support 'Convert perf time to TSC' test for hybrid") Reviewed-by:
Kan Liang <kan.liang@linux.intel.com> Signed-off-by:
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Adrian Hunter authored
Do not call evlist__open() twice. Fixes: 5bb017d4 ("perf test: Fix error message for test case 71 on s390, where it is not supported") Reviewed-by:
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Arnaldo Carvalho de Melo authored
To pick up the changes from these csets: 4ad3278d ("x86/speculation: Disable RRSBA behavior") d7caac99 ("x86/cpu/amd: Add Spectral Chicken") That cause no changes to tooling: $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > before $ cp arch/x86/include/asm/msr-index.h tools/arch/x86/include/asm/msr-index.h $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > after $ diff -u before after $ Just silences this perf build warning: Warning: Kernel ABI header at 'tools/arch/x86/include/asm/msr-index.h' differs from latest version at 'arch/x86/include/asm/msr-index.h' diff -u tools/arch/x86/include/asm/msr-index.h arch/x86/include/asm/msr-index.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Pawan Gupta <pawan.kumar.gupta@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/lkml/YtQTm9wsB3hxQWvy@kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
To pick the changes from: f43b9876 ("x86/retbleed: Add fine grained Kconfig knobs") a149180f ("x86: Add magic AMD return-thunk") 15e67227 ("x86: Undo return-thunk damage") 369ae6ff ("x86/retpoline: Cleanup some #ifdefery") 4ad3278d x86/speculation: Disable RRSBA behavior 26aae8cc x86/cpu/amd: Enumerate BTC_NO 9756bba2 x86/speculation: Fill RSB on vmexit for IBRS 3ebc1700 x86/bugs: Add retbleed=ibpb 2dbb887e x86/entry: Add kernel IBRS implementation 6b80b59b x86/bugs: Report AMD retbleed vulnerability a149180f x86: Add magic AMD return-thunk 15e67227 x86: Undo return-thunk damage a883d624 x86/cpufeatures: Move RETPOLINE flags to word 11 51802186 x86/speculation/mmio: Enumerate Processor MMIO Stale Data bug This only causes these perf files to be rebuilt: CC /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o CC /tmp/build/perf/bench/mem-memset-x86-64-asm.o And addresses 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 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 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org Link: https://lore.kernel.org/lkml/YtQM40VmiLTkPND2@kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
To pick the changes in: 1b870fa5 ("kvm: stats: tell userspace which values are boolean") That just rebuilds perf, as these patches don't add any new KVM ioctl to be harvested for the the 'perf trace' ioctl syscall argument beautifiers. This is also by now used by tools/testing/selftests/kvm/, a simple test build succeeded. This silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Link: http://lore.kernel.org/lkml/YtQLDvQrBhJNl3n5@kernel.orgSigned-off-by:
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- 16 Jul, 2022 4 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linuxLinus Torvalds authored
Pull btrfs reverts from David Sterba: "Due to a recent report [1] we need to revert the radix tree to xarray conversion patches. There's a problem with sleeping under spinlock, when xa_insert could allocate memory under pressure. We use GFP_NOFS so this is a real problem that we unfortunately did not discover during review. I'm sorry to do such change at rc6 time but the revert is IMO the safer option, there are patches to use mutex instead of the spin locks but that would need more testing. The revert branch has been tested on a few setups, all seem ok. The conversion to xarray will be revisited in the future" Link: https://lore.kernel.org/linux-btrfs/cover.1657097693.git.fdmanana@suse.com/ [1] * tag 'for-5.19-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: Revert "btrfs: turn delayed_nodes_tree into an XArray" Revert "btrfs: turn name_cache radix tree into XArray in send_ctx" Revert "btrfs: turn fs_info member buffer_radix into XArray" Revert "btrfs: turn fs_roots_radix in btrfs_fs_info into an XArray"
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds authored
Pull SCSI fixes from James Bottomley: "Six small and reasonably obvious fixes, all in drivers" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: pm80xx: Set stopped phy's linkrate to Disabled scsi: pm80xx: Fix 'Unknown' max/min linkrate scsi: ufs: core: Fix missing clk change notification on host reset scsi: ufs: core: Drop loglevel of WriteBoost message scsi: megaraid: Clear READ queue map's nr_queues scsi: target: Fix WRITE_SAME No Data Buffer crash
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git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull block fixes from Jens Axboe: "Two NVMe fixes, and a regression fix for the core block layer from this merge window" * tag 'block-5.19-2022-07-15' of git://git.kernel.dk/linux-block: block: fix missing blkcg_bio_issue_init nvme: fix block device naming collision nvme-pci: fix freeze accounting for error handling
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds authored
Pull USB driver fixes from Greg KH: "Here are some small USB driver fixes and new device ids for 5.19-rc7. They include: - new usb-serial driver ids - typec uevent fix - uvc gadget driver fix - dwc3 driver fixes - ehci-fsl driver fix All of these have been in linux-next for a while with no reported issues" * tag 'usb-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: USB: serial: ftdi_sio: add Belimo device ids drivers/usb/host/ehci-fsl: Fix interrupt setup in host mode. usb: gadget: uvc: fix changing interface name via configfs usb: typec: add missing uevent when partner support PD usb: dwc3-am62: remove unnecesary clk_put() usb: dwc3: gadget: Fix event pending check
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