Messages in this thread Patch in this message | | | Date | Fri, 18 Apr 2014 21:13:22 +0200 | From | Oleg Nesterov <> | Subject | [PATCH 1/1] memcg: kill start_kernel()->mm_init_owner(init_mm) |
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Remove start_kernel()->mm_init_owner(&init_mm, &init_task).
This doesn't really hurt but unnecessary and misleading. init_task is the "swapper" thread == current, its ->mm is always NULL. And init_mm can only be used as ->active_mm, not as ->mm.
mm_init_owner() has a single caller with this patch, perhaps it should die. mm_init() can initialize ->owner under #ifdef.
Signed-off-by: Oleg Nesterov <oleg@redhat.com> --- init/main.c | 1 - 1 files changed, 0 insertions(+), 1 deletions(-)
diff --git a/init/main.c b/init/main.c index 3815895..17090bb 100644 --- a/init/main.c +++ b/init/main.c @@ -507,7 +507,6 @@ asmlinkage void __init start_kernel(void) page_address_init(); pr_notice("%s", linux_banner); setup_arch(&command_line); - mm_init_owner(&init_mm, &init_task); mm_init_cpumask(&init_mm); setup_command_line(command_line); setup_nr_cpu_ids(); -- 1.5.5.1
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