Re: [PATCH v5 08/24] sched: Introduce per memory space current virtual cpu id
From: Peter Zijlstra <peterz@infradead.org>
Date: 2022-11-08 13:00:53
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From: Peter Zijlstra <peterz@infradead.org>
Date: 2022-11-08 13:00:53
Also in:
lkml
On Thu, Nov 03, 2022 at 04:03:43PM -0400, Mathieu Desnoyers wrote:
diff --git a/fs/exec.c b/fs/exec.c index 349a5da91efe..93eb88f4053b 100644 --- a/fs/exec.c +++ b/fs/exec.c@@ -1013,6 +1013,9 @@ static int exec_mmap(struct mm_struct *mm) tsk->active_mm = mm; tsk->mm = mm; lru_gen_add_mm(mm); + mm_init_vcpu_lock(mm); + mm_init_vcpumask(mm); + mm_init_node_vcpumask(mm); /* * This prevents preemption while active_mm is being loaded and * it and mm are being updated, which could cause problems for
@@ -1150,6 +1154,9 @@ static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p, mm->user_ns = get_user_ns(user_ns); lru_gen_init_mm(mm); + mm_init_vcpu_lock(mm); + mm_init_vcpumask(mm); + mm_init_node_vcpumask(mm); return mm; fail_nocontext:
Why isn't all that a single mm_init_vcpu(mm) or something ?