Hi Ingo, Is this something that could be taken into the tip tree? It's a series of patches that consolidate init_task handling: (1) Alter the INIT_TASK_DATA linker script macro to set init_thread_union and init_stack rather than defining these in C. Insert init_task and init_thread_into into the init_stack area in the linker script as appropriate to the configuration, with different section markers so that they end up correctly ordered. We can then get merge ia64's init_task.c into the main one. We then have a bunch of single-use INIT_*() macros that seem only to be macros because they used to be used per-arch. We can then unroll these in place of the user and get rid of a few lines and a lot of backslashes. (2) Unroll INIT_TASK(). (3) Unroll various small INIT_*() macros that are defined conditionally. Unroll them and surround them by #if[n]def/#endif in the .c file as it takes fewer lines. (4) Unroll INIT_SIGNALS() and INIT_SIGHAND(). (5) Unroll INIT_STRUCT_PID. The patches can be found here also: http://git.kernel.org/cgit/linux/kernel/git/dhowells/linux-fs.git/log/?h=init_task David --- David Howells (5): Construct init thread stack in the linker script rather than by union Unroll INIT_TASK() in init/init_task.c Unroll various INIT_* macros Unroll the INIT_SIGNALS and INIT_SIGHAND macros Unroll INIT_STRUCT_PID arch/Kconfig | 4 arch/alpha/include/asm/thread_info.h | 3 arch/arc/include/asm/thread_info.h | 3 arch/arm/include/asm/thread_info.h | 3 arch/arm64/include/asm/thread_info.h | 2 arch/blackfin/include/asm/thread_info.h | 2 arch/c6x/include/asm/thread_info.h | 3 arch/cris/include/asm/processor.h | 2 arch/cris/include/asm/thread_info.h | 2 arch/frv/include/asm/thread_info.h | 3 arch/h8300/include/asm/thread_info.h | 3 arch/hexagon/include/asm/thread_info.h | 3 arch/ia64/Kconfig | 2 arch/ia64/Makefile | 2 arch/ia64/include/asm/thread_info.h | 4 arch/ia64/kernel/Makefile | 2 arch/ia64/kernel/init_task.c | 43 ----- arch/ia64/kernel/vmlinux.lds.S | 1 arch/m32r/include/asm/thread_info.h | 3 arch/m68k/include/asm/thread_info.h | 4 arch/metag/include/asm/thread_info.h | 3 arch/microblaze/include/asm/thread_info.h | 3 arch/mips/include/asm/thread_info.h | 3 arch/mn10300/include/asm/thread_info.h | 2 arch/nios2/include/asm/thread_info.h | 3 arch/openrisc/include/asm/processor.h | 2 arch/openrisc/include/asm/thread_info.h | 2 arch/parisc/include/asm/thread_info.h | 3 arch/powerpc/include/asm/thread_info.h | 3 arch/s390/include/asm/thread_info.h | 2 arch/score/include/asm/thread_info.h | 3 arch/sh/include/asm/thread_info.h | 3 arch/sparc/include/asm/thread_info_32.h | 3 arch/sparc/include/asm/thread_info_64.h | 3 arch/tile/include/asm/thread_info.h | 3 arch/um/include/asm/processor-generic.h | 2 arch/um/include/asm/thread_info.h | 9 - arch/um/include/asm/vmlinux.lds.h | 2 arch/um/kernel/dyn.lds.S | 2 arch/um/kernel/um_arch.c | 2 arch/um/kernel/uml.lds.S | 2 arch/unicore32/include/asm/thread_info.h | 3 arch/x86/include/asm/thread_info.h | 2 arch/xtensa/include/asm/thread_info.h | 3 include/asm-generic/vmlinux.lds.h | 4 include/linux/ftrace.h | 12 - include/linux/init_task.h | 264 +---------------------------- include/linux/irqflags.h | 2 include/linux/lockdep.h | 3 include/linux/sched.h | 9 + init/Makefile | 2 init/init_task.c | 173 ++++++++++++++++++- kernel/pid.c | 15 ++ 53 files changed, 219 insertions(+), 427 deletions(-) delete mode 100644 arch/ia64/kernel/init_task.c create mode 100644 arch/um/include/asm/vmlinux.lds.h -- To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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