• Andy Lutomirski's avatar
    sched/core: Allow putting thread_info into task_struct · c65eacbe
    Andy Lutomirski authored
    
    
    If an arch opts in by setting CONFIG_THREAD_INFO_IN_TASK_STRUCT,
    then thread_info is defined as a single 'u32 flags' and is the first
    entry of task_struct.  thread_info::task is removed (it serves no
    purpose if thread_info is embedded in task_struct), and
    thread_info::cpu gets its own slot in task_struct.
    
    This is heavily based on a patch written by Linus.
    
    Originally-from: Linus Torvalds <torvalds@linux-foundation.org>
    Signed-off-by: default avatarAndy Lutomirski <luto@kernel.org>
    Cc: Borislav Petkov <bp@alien8.de>
    Cc: Brian Gerst <brgerst@gmail.com>
    Cc: Denys Vlasenko <dvlasenk@redhat.com>
    Cc: H. Peter Anvin <hpa@zytor.com>
    Cc: Jann Horn <jann@thejh.net>
    Cc: Josh Poimboeuf <jpoimboe@redhat.com>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Link: http://lkml.kernel.org/r/a0898196f0476195ca02713691a5037a14f2aac5.1473801993.git.luto@kernel.org
    Signed-off-by: Ingo Molnar <mingo@ke...
    c65eacbe
thread_info.h 3.48 KB