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Miss Islington (bot) 80d7626c74 [3.15] gh-150902: Optimize PyCriticalSection2 to skip locking the same locks held by the current CS2 (gh-151554) 
This mimics an optimization already present for the single-mutex critical section.
(cherry picked from commit c2ca7724af)

Co-authored-by: Daniele Parmeggiani <8658291+dpdani@users.noreply.github.com>
2026-06-19 09:52:07 -04:00
..
mimalloc
gh-144490: Fix mimalloc debug build for C++ (#144620)
2026-02-10 11:56:52 +01:00
pycore_abstract.h
GH-143732: SEND specialization (GH-148963)
2026-05-05 15:19:16 +01:00
pycore_asdl.h
…
pycore_ast_state.h
gh-116021: Deprecate support for instantiating abstract AST nodes (#137865)
2026-05-02 09:50:06 -07:00
pycore_ast.h
gh-142349: Implement PEP 810 - Explicit lazy imports (#142351)
2026-02-12 00:15:33 +00:00
pycore_atexit.h
gh-131238: Remove pycore_lock.h includes (#131483)
2025-03-19 23:46:25 +00:00
pycore_audit.h
…
pycore_backoff.h
gh-127958: Trace from RESUME in the JIT (GH-145905)
2026-03-17 00:18:59 +08:00
pycore_bitutils.h
…
pycore_blocks_output_buffer.h
gh-148688: Fix _BlocksOutputBuffer_Finish() double free (#148689)
2026-04-18 09:56:56 +00:00
pycore_brc.h
gh-131238: Remove pycore_lock.h includes (#131483)
2025-03-19 23:46:25 +00:00
pycore_bytes_methods.h
gh-71679: Share the repr implementation between bytes and bytearray (GH-138181)
2025-09-17 11:10:29 +03:00
pycore_bytesobject.h
gh-100239: Specialize more binary operations using BINARY_OP_EXTEND (GH-128956)
2026-04-16 09:22:41 +01:00
pycore_c_array.h
gh-130080: move _Py_EnsureArrayLargeEnough to a separate header so it can be used outside of the compiler (#130930)
2025-03-13 16:02:58 +00:00
pycore_call.h
gh-148659: Export some internal functions for the JIT (PEP-523) (#148634)
2026-04-17 01:55:03 +02:00
pycore_capsule.h
…
pycore_cell.h
gh-144490: Fix C++ compatibility in pycore_cell.h (GH-144482)
2026-02-06 22:11:58 -05:00
pycore_ceval_state.h
gh-131238: Remove pycore_lock.h includes (#131483)
2025-03-19 23:46:25 +00:00
pycore_ceval.h
GH-126910: Add gdb support for unwinding JIT frames (#146071)
2026-05-02 13:42:03 +00:00
pycore_code.h
gh-137030: Fix YIELD_VALUE bytecode assertion (#149184)
2026-05-04 18:09:57 +02:00
pycore_codecs.h
gh-131238: Remove pycore_lock.h includes (#131483)
2025-03-19 23:46:25 +00:00
pycore_compile.h
gh-142349: Implement PEP 810 - Explicit lazy imports (#142351)
2026-02-12 00:15:33 +00:00
pycore_complexobject.h
gh-128813: hide mixed-mode functions for complex arithmetic from C-API (#131703)
2025-04-22 14:18:18 +02:00
pycore_condvar.h
gh-131082: Add missing guards for WIN32_LEAN_AND_MEAN (#131044)
2025-03-11 12:33:01 +01:00
pycore_context.h
gh-140414: streamline thread state access in asyncio (#142742)
2025-12-15 16:57:51 +05:30
pycore_critical_section.h
[3.15] gh-150902: Optimize PyCriticalSection2 to skip locking the same locks held by the current CS2 (gh-151554)
2026-06-19 09:52:07 -04:00
pycore_crossinterp_data_registry.h
gh-132775: Support Fallbacks in _PyObject_GetXIData() (gh-133482)
2025-05-21 07:23:48 -06:00
pycore_crossinterp.h
gh-148072: Cache pickle.dumps/loads per interpreter in XIData (GH-148125)
2026-04-06 11:37:02 -04:00
pycore_debug_offsets.h
gh-146462: Add dict introspection debug offsets (#148633)
2026-05-04 23:00:23 +00:00
pycore_descrobject.h
gh-41779: Allow defining any __slots__ for a class derived from tuple (GH-141763)
2026-01-06 11:36:00 +02:00
pycore_dict_state.h
[3.15] gh-145235: Make dict watcher API thread-safe for free-threaded builds (gh-145233) (#149690)
2026-05-11 14:23:39 -04:00
pycore_dict.h
gh-143732: allow dict subclasses to be specialized (GH-148128)
2026-05-04 09:39:03 +01:00
pycore_dtoa.h
GH-131238: Core header refactor (GH-131250)
2025-03-17 09:19:04 +00:00
pycore_emscripten_signal.h
…
pycore_emscripten_trampoline.h
gh-145037: Fix Emscripten trampoline with emcc >= 4.0.19 (#145038)
2026-02-26 06:21:05 +08:00
pycore_exceptions.h
…
pycore_faulthandler.h
gh-149085: Add max_threads keyword to faulthandler.dump_traceback() (GH-149106)
2026-04-30 09:27:57 -04:00
pycore_fileutils_windows.h
…
pycore_fileutils.h
gh-131238: Use pycore_interp_structs.h header (#131481)
2025-03-19 23:13:25 +00:00
pycore_floatobject.h
gh-145633: Remove support for ancient ARM platforms with mixed-endian doubles (#145634)
2026-03-11 12:39:24 +01:00
pycore_flowgraph.h
GH-143493: Conform to spec for generator expressions while supporting virtual iterators (GH-143569)
2026-01-16 09:11:58 +00:00
pycore_format.h
…
pycore_frame.h
gh-148659: Export some internal functions for the JIT (PEP-523) (#148634)
2026-04-17 01:55:03 +02:00
pycore_freelist_state.h
gh-129813, PEP 782: Add PyBytesWriter C API (#138822)
2025-09-12 13:41:59 +02:00
pycore_freelist.h
gh-140544: store pointer to interpreter state as a thread local for fast access (#140573)
2025-10-25 19:56:07 +05:30
pycore_function.h
gh-148659: Export some internal functions for the JIT (PEP-523) (#148634)
2026-04-17 01:55:03 +02:00
pycore_gc.h
[3.15] gh-150766: export _PyGC_VisitFrameStack and _PyGC_VisitStackRef functions (GH-150767) (#150787)
2026-06-02 13:36:52 +00:00
pycore_genobject.h
GH-143732: SEND specialization (GH-148963)
2026-05-05 15:19:16 +01:00
pycore_getopt.h
…
pycore_gil.h
…
pycore_global_objects_fini_generated.h
[3.15] gh-148829: Make sentinels' repr and module customizable (GH-149654) (#150092)
2026-05-22 07:44:34 -07:00
pycore_global_objects.h
GH-131238: Core header refactor (GH-131250)
2025-03-17 09:19:04 +00:00
pycore_global_strings.h
[3.15] gh-148829: Make sentinels' repr and module customizable (GH-149654) (#150092)
2026-05-22 07:44:34 -07:00
pycore_hamt.h
GH-131238: Core header refactor (GH-131250)
2025-03-17 09:19:04 +00:00
pycore_hashtable.h
…
pycore_import.h
[3.15] gh-150052: Resolve un-loaded lazily loaded submodules via module.__getattr__ instead of publishing lazy values (#150055)
2026-05-19 21:23:30 +00:00
pycore_importdl.h
gh-149044: Implement PEP 820 – PySlot: Unified slot system for the C API (GH-149055)
2026-05-05 09:18:04 +02:00
pycore_index_pool.h
GH-131238: Core header refactor (GH-131250)
2025-03-17 09:19:04 +00:00
pycore_initconfig.h
gh-116749: Fix code comment for _PyConfig_GIL_DEFAULT (gh-141804)
2025-11-24 10:42:00 -05:00
pycore_instruction_sequence.h
GH-143493: Conform to spec for generator expressions while supporting virtual iterators (GH-143569)
2026-01-16 09:11:58 +00:00
pycore_instruments.h
gh-142186: Allow all PEP-669 events to be per-code object and disableable (GH-146182)
2026-04-22 09:08:23 +01:00
pycore_interp_structs.h
[3.15] gh-148587: Make sys.lazy_modules match PEP and keep internal lazy submodules tra… (#150014)
2026-05-18 17:53:54 -07:00
pycore_interp.h
gh-131238: Remove includes from pycore_interp.h (#131495)
2025-03-20 11:35:23 +00:00
pycore_interpframe_structs.h
GH-140643: Add <native> and <GC> frames to the sampling profiler (#141108)
2025-11-17 13:39:00 +00:00
pycore_interpframe.h
[3.15] gh-151436: Fix missing tstate->last_profiled_frame updates (GH-151437) (#151612)
2026-06-19 10:24:53 +02:00
pycore_interpolation.h
gh-132661: Implement PEP 750 (#132662)
2025-04-30 11:46:41 +02:00
pycore_intrinsics.h
…
pycore_jit_publish.h
GH-126910: Add GNU backtrace support for unwinding JIT frames (#149104)
2026-05-05 09:29:07 +01:00
pycore_jit_unwind.h
[3.15] gh-149685: Use the _Py prefix for private C macros (GH-149686) (GH-149790)
2026-05-13 23:29:08 +02:00
pycore_jit.h
GH-126910: Add gdb support for unwinding JIT frames (#146071)
2026-05-02 13:42:03 +00:00
pycore_lazyimportobject.h
gh-142349: Implement PEP 810 - Explicit lazy imports (#142351)
2026-02-12 00:15:33 +00:00
pycore_list.h
gh-100239: Specialize more binary operations using BINARY_OP_EXTEND (GH-128956)
2026-04-16 09:22:41 +01:00
pycore_llist.h
…
pycore_lock.h
gh-120321: Make gi_yieldfrom thread-safe in free-threading build (#144292)
2026-01-30 12:20:27 -05:00
pycore_long.h
gh-143050: Add helper _PyLong_InitTag() (#147956)
2026-04-01 21:42:10 +00:00
pycore_magic_number.h
GH-143732: SEND specialization (GH-148963)
2026-05-05 15:19:16 +01:00
pycore_memoryobject.h
gh-132776: Revert Moving memoryview XIData Code to memoryobject.c (gh-132960)
2025-04-25 16:43:50 +00:00
pycore_mimalloc.h
…
pycore_mmap.h
[3.15] gh-149685: Use the _Py prefix for private C macros (GH-149686) (GH-149790)
2026-05-13 23:29:08 +02:00
pycore_modsupport.h
gh-129594: Remove redundant check on varargs in _PyArg_CheckPositional (#129595)
2025-05-26 10:51:12 +02:00
pycore_moduleobject.h
gh-145921: Add "_DuringGC" functions for tp_traverse (GH-145925)
2026-04-08 09:15:11 +02:00
pycore_namespace.h
…
pycore_object_alloc.h
…
pycore_object_deferred.h
…
pycore_object_stack.h
…
pycore_object_state.h
…
pycore_object.h
gh-148659: Export some internal functions for the JIT (PEP-523) (#148634)
2026-04-17 01:55:03 +02:00
pycore_obmalloc_init.h
…
pycore_obmalloc.h
Note out-of-date obmalloc comments (#148149)
2026-04-06 23:08:47 -05:00
pycore_opcode_metadata.h
GH-143732: SEND specialization (GH-148963)
2026-05-05 15:19:16 +01:00
pycore_opcode_utils.h
gh-148871: extend and improve LOAD_COMMON_CONSTANT (GH-148971)
2026-05-02 19:59:51 +01:00
pycore_optimizer_types.h
gh-146261: JIT: protect against function version changes (#146300)
2026-04-13 02:23:47 +08:00
pycore_optimizer.h
[3.15] gh-149335: Avoid JIT trace buffer asserts with overhead above FITNESS_INITIAL (GH-149633) (#150245)
2026-05-24 12:48:58 +05:30
pycore_parking_lot.h
…
pycore_parser.h
gh-122581: Use parser mutex in default build for subinterpreters (gh-142959)
2025-12-20 15:37:31 -05:00
pycore_pathconfig.h
…
pycore_pyarena.h
…
pycore_pyatomic_ft_wrappers.h
[3.15] gh-145235: Make dict watcher API thread-safe for free-threaded builds (gh-145233) (#149690)
2026-05-11 14:23:39 -04:00
pycore_pybuffer.h
…
pycore_pyerrors.h
gh-148659: Export some internal functions for the JIT (PEP-523) (#148634)
2026-04-17 01:55:03 +02:00
pycore_pyhash.h
[3.15] gh-149018: Use XML_SetHashSalt16Bytes in pyexpat/_elementtree when possible (#149645)
2026-05-24 14:36:30 +01:00
pycore_pylifecycle.h
gh-136421: Load _datetime static types during interpreter initialization (GH-136583)
2025-07-21 13:47:26 -04:00
pycore_pymath.h
gh-145633: Remove support for ancient ARM platforms with mixed-endian doubles (#145634)
2026-03-11 12:39:24 +01:00
pycore_pymem_init.h
gh-144914: use mimalloc for raw allocations on free-threading (#144916)
2026-02-18 04:16:27 +00:00
pycore_pymem.h
gh-116008: Detect freed thread state in faulthandler (#141988)
2025-11-27 12:35:00 +01:00
pycore_pystate.h
gh-149101: Implement PEP 788 (GH-149116)
2026-05-06 17:39:30 -04:00
pycore_pystats.h
gh-131253: free-threaded build support for pystats (gh-137189)
2025-11-03 11:36:37 -08:00
pycore_pythonrun.h
GH-126910: Revert "Make _Py_get_machine_stack_pointer return the stack pointer (#147945)" (GH-147994)
2026-04-02 16:53:09 +02:00
pycore_pythread.h
GH-131238: Core header refactor (GH-131250)
2025-03-17 09:19:04 +00:00
pycore_qsbr.h
gh-144438: Fix false sharing between QSBR and tlbc_index (gh-144554)
2026-02-17 11:12:25 -05:00
pycore_range.h
…
pycore_runtime_init_generated.h
[3.15] gh-148829: Make sentinels' repr and module customizable (GH-149654) (#150092)
2026-05-22 07:44:34 -07:00
pycore_runtime_init.h
GH-148726: Forward-port generational GC. (GH-148746)
2026-04-30 12:19:13 -07:00
pycore_runtime_structs.h
gh-146302: make Py_IsInitialized() thread-safe and reflect true init completion (GH-146303)
2026-04-11 21:54:23 +00:00
pycore_runtime.h
gh-146302: make Py_IsInitialized() thread-safe and reflect true init completion (GH-146303)
2026-04-11 21:54:23 +00:00
pycore_semaphore.h
gh-137433: Fix deadlock with stop-the-world and daemon threads (gh-137735)
2025-09-16 09:21:58 +01:00
pycore_setobject.h
gh-130312: SET_ADD should not lock (#130136)
2025-03-21 15:58:32 -07:00
pycore_signal.h
…
pycore_sliceobject.h
…
pycore_slots_generated.h
gh-149044: Implement PEP 820 – PySlot: Unified slot system for the C API (GH-149055)
2026-05-05 09:18:04 +02:00
pycore_slots.h
gh-149044: Implement PEP 820 – PySlot: Unified slot system for the C API (GH-149055)
2026-05-05 09:18:04 +02:00
pycore_stackref.h
gh-148718: Fix Py_STACKREF_DEBUG build by defining macros (#148719)
2026-04-20 21:55:03 +09:00
pycore_stats.h
gh-131253: free-threaded build support for pystats (gh-137189)
2025-11-03 11:36:37 -08:00
pycore_strhex.h
gh-147944: Increase range of bytes_per_sep (GH-147946)
2026-04-01 08:33:30 +00:00
pycore_structs.h
GH-131498: Cases generator: manage stacks automatically (GH-132074)
2025-04-04 17:59:36 +01:00
pycore_structseq.h
…
pycore_symtable.h
gh-137814: Fix __qualname__ of __annotate__ (#137842)
2026-04-15 21:52:30 -07:00
pycore_sysmodule.h
gh-108512: Add and use new replacements for PySys_GetObject() (GH-111035)
2025-05-28 20:11:09 +03:00
pycore_template.h
gh-132661: Implement PEP 750 (#132662)
2025-04-30 11:46:41 +02:00
pycore_time.h
Remove internal _PyTime_AsLong() function (#141053)
2025-11-05 18:37:06 +01:00
pycore_token.h
gh-132661: Implement PEP 750 (#132662)
2025-04-30 11:46:41 +02:00
pycore_traceback.h
gh-145559: Add PyUnstable_DumpTraceback() and PyUnstable_DumpTracebackThreads() (#148145)
2026-05-06 15:01:12 +00:00
pycore_tracemalloc.h
gh-143057: avoid locking in tracemalloc C-APIs when it is not enabled (#143065)
2025-12-22 21:08:07 +05:30
pycore_tstate.h
gh-144438: Fix false sharing between QSBR and tlbc_index (gh-144554)
2026-02-17 11:12:25 -05:00
pycore_tuple.h
gh-100239: Specialize more binary operations using BINARY_OP_EXTEND (GH-128956)
2026-04-16 09:22:41 +01:00
pycore_typedefs.h
gh-130931: Add pycore_typedefs.h internal header (#131396)
2025-03-19 15:23:32 +01:00
pycore_typeobject.h
[3.15] gh-149481: skip FOR_ITER inline specialization for Python __next__ (GH-149491) (#149523)
2026-05-07 19:08:12 -07:00
pycore_typevarobject.h
…
pycore_ucnhash.h
…
pycore_unicodectype.h
gh-129117: Add unicodedata.isxidstart() function (#140269)
2025-10-30 10:18:12 +00:00
pycore_unicodeobject_generated.h
[3.15] gh-148829: Make sentinels' repr and module customizable (GH-149654) (#150092)
2026-05-22 07:44:34 -07:00
pycore_unicodeobject.h
gh-103997: Remove incorrect statements about -c dedenting (gh-138624)
2026-03-10 09:56:00 +01:00
pycore_unionobject.h
…
pycore_uniqueid.h
GH-131238: Core header refactor (GH-131250)
2025-03-17 09:19:04 +00:00
pycore_uop_ids.h
GH-143732: SEND specialization (GH-148963)
2026-05-05 15:19:16 +01:00
pycore_uop_metadata.h
GH-143732: SEND specialization (GH-148963)
2026-05-05 15:19:16 +01:00
pycore_uop.h
[3.15] gh-149335: Avoid JIT trace buffer asserts with overhead above FITNESS_INITIAL (GH-149633) (#150245)
2026-05-24 12:48:58 +05:30
pycore_warnings.h
GH-131238: Core header refactor (GH-131250)
2025-03-17 09:19:04 +00:00
pycore_weakref.h
gh-135607: remove null checking of weakref list in dealloc of extension modules and objects (#135614)
2025-06-30 11:14:31 +00:00