The purpose of this serie is to activate CONFIG_THREAD_INFO_IN_TASK which moves the thread_info into task_struct.
Moving thread_info into task_struct has the following advantages: - It protects thread_info from corruption in the case of stack overflows. - Its address is harder to determine if stack addresses are leaked, making a number of attacks more difficult. Changes since v1: - Removed the first patch which was modifying header inclusion order in timer - Modified some names in asm-offsets to avoid conflicts when including asm-offsets in C files - Modified asm/smp.h to avoid having to include linux/sched.h (using asm-offsets instead) - Moved some changes from the activation patch to the preparation patch. Christophe Leroy (9): book3s/64: avoid circular header inclusion in mmu-hash.h powerpc: change name THREAD_INFO to TASK_STACK powerpc: clear redundancies in asm-offset.c powerpc: Prepare for moving thread_info into task_struct powerpc: Activate CONFIG_THREAD_INFO_IN_TASK powerpc: regain entire stack space powerpc: 'current_set' is now a table of task_struct pointers powerpc/32: Remove CURRENT_THREAD_INFO and rename TI_CPU powerpc/64: Modify CURRENT_THREAD_INFO() arch/powerpc/Kconfig | 1 + arch/powerpc/include/asm/asm-prototypes.h | 4 +- arch/powerpc/include/asm/book3s/64/mmu-hash.h | 2 +- arch/powerpc/include/asm/exception-64s.h | 4 +- arch/powerpc/include/asm/irq.h | 14 ++-- arch/powerpc/include/asm/livepatch.h | 2 +- arch/powerpc/include/asm/mmu-44x.h | 8 +-- arch/powerpc/include/asm/processor.h | 39 +----------- arch/powerpc/include/asm/ptrace.h | 2 +- arch/powerpc/include/asm/reg.h | 2 +- arch/powerpc/include/asm/smp.h | 14 +++- arch/powerpc/include/asm/task_size.h | 42 ++++++++++++ arch/powerpc/include/asm/thread_info.h | 17 +---- arch/powerpc/kernel/asm-offsets.c | 37 ++++++----- arch/powerpc/kernel/entry_32.S | 88 ++++++++++---------------- arch/powerpc/kernel/entry_64.S | 12 ++-- arch/powerpc/kernel/epapr_hcalls.S | 5 +- arch/powerpc/kernel/exceptions-64e.S | 13 +--- arch/powerpc/kernel/exceptions-64s.S | 2 +- arch/powerpc/kernel/head_32.S | 16 ++--- arch/powerpc/kernel/head_40x.S | 6 +- arch/powerpc/kernel/head_44x.S | 10 +-- arch/powerpc/kernel/head_64.S | 3 +- arch/powerpc/kernel/head_8xx.S | 4 +- arch/powerpc/kernel/head_booke.h | 12 +--- arch/powerpc/kernel/head_fsl_booke.S | 18 +++--- arch/powerpc/kernel/idle_6xx.S | 8 +-- arch/powerpc/kernel/idle_book3e.S | 2 +- arch/powerpc/kernel/idle_e500.S | 8 +-- arch/powerpc/kernel/idle_power4.S | 2 +- arch/powerpc/kernel/irq.c | 66 +++---------------- arch/powerpc/kernel/kgdb.c | 28 -------- arch/powerpc/kernel/machine_kexec_64.c | 6 +- arch/powerpc/kernel/misc_32.S | 17 ++--- arch/powerpc/kernel/process.c | 15 ++--- arch/powerpc/kernel/setup-common.c | 2 +- arch/powerpc/kernel/setup_32.c | 15 ++--- arch/powerpc/kernel/setup_64.c | 29 ++------- arch/powerpc/kernel/smp.c | 16 ++--- arch/powerpc/kernel/trace/ftrace_64_mprofile.S | 6 +- arch/powerpc/kernel/vdso32/gettimeofday.S | 4 +- arch/powerpc/kvm/book3s_hv_hmi.c | 1 + arch/powerpc/mm/hash_low_32.S | 14 ++-- arch/powerpc/sysdev/6xx-suspend.S | 5 +- arch/powerpc/xmon/xmon.c | 2 +- 45 files changed, 243 insertions(+), 380 deletions(-) create mode 100644 arch/powerpc/include/asm/task_size.h -- 2.13.3