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authorPeter Zijlstra <peterz@infradead.org>2022-10-25 22:38:21 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-08-08 21:03:49 +0300
commit9ae15aaff39c831e2f9d8b029e85a2d70c7c8a68 (patch)
tree5748ce313a5437e8710a92a42d22f82ac6ebe68f /kernel
parentd972c8c08f96518ff02efd87c4fef594a833f6ea (diff)
downloadlinux-9ae15aaff39c831e2f9d8b029e85a2d70c7c8a68.tar.xz
x86/mm: Use mm_alloc() in poking_init()
commit 3f4c8211d982099be693be9aa7d6fc4607dff290 upstream. Instead of duplicating init_mm, allocate a fresh mm. The advantage is that mm_alloc() has much simpler dependencies. Additionally it makes more conceptual sense, init_mm has no (and must not have) user state to duplicate. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20221025201057.816175235@infradead.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/fork.c5
1 files changed, 0 insertions, 5 deletions
diff --git a/kernel/fork.c b/kernel/fork.c
index 6bb91fbbf73c..ab4def837607 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -2600,11 +2600,6 @@ struct task_struct * __init fork_idle(int cpu)
return task;
}
-struct mm_struct *copy_init_mm(void)
-{
- return dup_mm(NULL, &init_mm);
-}
-
/*
* This is like kernel_clone(), but shaved down and tailored to just
* creating io_uring workers. It returns a created task, or an error pointer.