[PATCH v2 0/2] x86: Enable the deferred unwinding infrastructure

This enables deferred unwinding for x86.

Changes since v1: https://lore.kernel.org/linux-trace-kernel/20250820190546.172023727@kernel.org (local)

- Added #include <linux/compat.h> to use user_64bit_mode() in
  unwind_user.h. When adding this to the ftrace code, it failed to build
  due to the missing header.

Josh Poimboeuf (1):
      unwind_user/x86: Enable frame pointer unwinding on x86

Steven Rostedt (1):
      unwind deferred/x86: Do not defer stack tracing for compat tasks

----
 arch/x86/Kconfig                   |  1 +
 arch/x86/include/asm/unwind_user.h | 23 +++++++++++++++++++++++
 include/linux/unwind_deferred.h    |  5 +++++
 kernel/unwind/deferred.c           |  3 +++
 4 files changed, 32 insertions(+)
 create mode 100644 arch/x86/include/asm/unwind_user.h