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authorPeter Zijlstra <peterz@infradead.org>2022-10-25 21:38:21 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-08-08 20:03:49 +0200
commit9ae15aaff39c831e2f9d8b029e85a2d70c7c8a68 (patch)
tree5748ce313a5437e8710a92a42d22f82ac6ebe68f /arch
parentd972c8c08f96518ff02efd87c4fef594a833f6ea (diff)
downloadlinux-9ae15aaff39c831e2f9d8b029e85a2d70c7c8a68.tar.gz
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 'arch')
-rw-r--r--arch/x86/mm/init.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index d0563830cffa..913287b9340c 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -827,7 +827,7 @@ void __init poking_init(void)
 	spinlock_t *ptl;
 	pte_t *ptep;
 
-	poking_mm = copy_init_mm();
+	poking_mm = mm_alloc();
 	BUG_ON(!poking_mm);
 
 	/* Xen PV guests need the PGD to be pinned. */