Defined in 2 files as a macro:

• include/uapi/linux/pidfd.h, line 58 (as a macro)
• tools/testing/selftests/pidfd/pidfd.h, line 76 (as a macro)

Referenced in 3 files:

• tools/testing/selftests/mm/guard-regions.c
  • line 624
  • line 645
• tools/testing/selftests/mm/process_madv.c, line 31
• tools/testing/selftests/pidfd/pidfd.h, line 75