]> git.karo-electronics.de Git - linux-beck.git/commit
sched/core: Allow putting thread_info into task_struct
authorAndy Lutomirski <luto@kernel.org>
Tue, 13 Sep 2016 21:29:24 +0000 (14:29 -0700)
committerIngo Molnar <mingo@kernel.org>
Thu, 15 Sep 2016 06:25:13 +0000 (08:25 +0200)
commitc65eacbe290b8141554c71b2c94489e73ade8c8d
tree001c2aa33a3dded758550c659ced4b70e341e03e
parentd896fa20a70c9e596438728561e058a74ed3196b
sched/core: Allow putting thread_info into task_struct

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: Andy 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@kernel.org>
include/linux/init_task.h
include/linux/sched.h
include/linux/thread_info.h
init/Kconfig
init/init_task.c
kernel/sched/sched.h