Linus Torvalds 64b609d6a6 A set of fixes for perf: ... - A set of commits which reduce the stack usage of various perf event handling functions which allocated large data structs on stack causing stack overflows in the worst case. - Use the proper mechanism for detecting soft interrupts in the recursion protection. - Make the resursion protection simpler and more robust. - Simplify the scheduling of event groups to make the code more robust and prepare for fixing the issues vs. scheduling of exclusive event groups. - Prevent event multiplexing and rotation for exclusive event groups - Correct the perf event attribute exclusive semantics to take pinned events, e.g. the PMU watchdog, into account - Make the anythread filtering conditional for Intel's generic PMU counters as it is not longer guaranteed to be supported on newer CPUs. Check the corresponding CPUID leaf to make sure. - Fixup a duplicate initialization in an array which was probably cause by the usual copy & paste - forgot to edit mishap. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAl+xIi0THHRnbHhAbGlu dXRyb25peC5kZQAKCRCmGPVMDXSYofixD/4+4gc8DhOmAkMrN0Z9tiW8ebgMKmb9 wZRkMr5Osi0GzLJOPZ6SdY6jd0A3rMN/sW6P1DT6pDtcty4bKFoW5VZBuUDIAhel BC4C93L3y1En/GEZu1GTy3LvsBwLBQTOoY4goDjbdAbk60S/0RTHOGyQsRsOQFe6 fVs3iXozAFuaR6I6N3dlxuJAE51zvr8MyBWaUoByNDB//1+lLNW+JfClaAOG1oXx qZIg/niatBVGzSGgKNRUyh3g8G1HJtabsA/NZ4PH8ZHuYABfmj4lmmUPR77ICLfV wMITEBG7eaktB8EqM9hvaoOZLA5kpXHO2JbCFSs4c4x11mlC8g7QMV3poCw33YoN a5TmT1A3muri1riy1/Ee9lXACOq7/tf2+Xfn9o6dvDdBwd6s5pzlhLGR8gILp2lF 2bcg3IwYvHT/Kiurb/WGNpbCqQIPJpcUcfs3tNBCCtKegahUQNnGjxN3NVo9RCit zfL6xIJ8eZiYnsxXx4NKm744AukWiql3aRNgRkOdBP5WC68xt6VLcxG1YZKUoDhy jRSOCD/DuPSMSvAAgN7S8OWlPsKWBxVxxWYV+K8FpwhgzbQ3WbS3UDiYkhgjeOxu OlM692oWpllKvQWlvYthr2Be6oPCRRi1vvADNNbTKzgHk5i61bwympsGl1EZx3Pz 2ROp7NJFRESnqw== =FzCf -----END PGP SIGNATURE----- Merge tag 'perf-urgent-2020-11-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Thomas Gleixner: "A set of fixes for perf: - A set of commits which reduce the stack usage of various perf event handling functions which allocated large data structs on stack causing stack overflows in the worst case - Use the proper mechanism for detecting soft interrupts in the recursion protection - Make the resursion protection simpler and more robust - Simplify the scheduling of event groups to make the code more robust and prepare for fixing the issues vs. scheduling of exclusive event groups - Prevent event multiplexing and rotation for exclusive event groups - Correct the perf event attribute exclusive semantics to take pinned events, e.g. the PMU watchdog, into account - Make the anythread filtering conditional for Intel's generic PMU counters as it is not longer guaranteed to be supported on newer CPUs. Check the corresponding CPUID leaf to make sure - Fixup a duplicate initialization in an array which was probably caused by the usual 'copy & paste - forgot to edit' mishap" * tag 'perf-urgent-2020-11-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel/uncore: Fix Add BW copypasta perf/x86/intel: Make anythread filter support conditional perf: Tweak perf_event_attr::exclusive semantics perf: Fix event multiplexing for exclusive groups perf: Simplify group_sched_in() perf: Simplify group_sched_out() perf/x86: Make dummy_iregs static perf/arch: Remove perf_sample_data::regs_user_copy perf: Optimize get_recursion_context() perf: Fix get_recursion_context() perf/x86: Reduce stack usage for x86_pmu::drain_pebs() perf: Reduce stack usage of perf_output_begin()		2020-11-15 09:46:36 -08:00
..
boot	riscv: Fix Kendryte K210 device tree	2020-09-19 13:20:14 -07:00
configs	RISC-V: Add EFI stub support.	2020-10-02 14:31:21 -07:00
include	riscv: uaccess: fix __put_kernel_nofault()	2020-11-06 00:03:46 -08:00
kernel	A set of fixes for perf:	2020-11-15 09:46:36 -08:00
lib	riscv: use memcpy based uaccess for nommu again	2020-10-04 10:27:07 -07:00
mm	RISC-V: Use non-PGD mappings for early DTB access	2020-11-06 00:03:47 -08:00
net	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
Kbuild	riscv: Allow device trees to be built into the kernel	2020-05-18 11:38:05 -07:00
Kconfig	RISC-V Patches for the 5.10 Merge Window, Part 2	2020-10-24 10:57:57 -07:00
Kconfig.debug	RISC-V: Remove EARLY_PRINTK support	2018-12-17 10:23:46 -08:00
Kconfig.socs	RISC-V: Remove CLINT related code from timer and arch	2020-08-20 10:58:13 -07:00
Makefile	Kbuild updates for v5.10	2020-10-22 13:13:57 -07:00