From c6b3415aac21e6b3d555bfaf9a92e8a903449144 Mon Sep 17 00:00:00 2001
From: Guo Mengqi <guomengqi3@huawei.com>
Date: Thu, 29 Sep 2022 11:39:49 +0000
Subject: [PATCH] mm: sharepool: delete redundant check in __sp_remap_get_pfn
hulk inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I5QETC
CVE: NA
--------------------------------
sp_make_share_k2u only supports vmalloc address now. Therefore, delete a
backup handle case.
Signed-off-by: Guo Mengqi <guomengqi3@huawei.com>
Reviewed-by: Weilong Chen <chenweilong@huawei.com>
Signed-off-by: Yongqiang Liu <liuyongqiang13@huawei.com>
---
mm/share_pool.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/mm/share_pool.c b/mm/share_pool.c
index bd021da5a930..d49c066d1229 100644
--- a/mm/share_pool.c
+++ b/mm/share_pool.c
@@ -2860,11 +2860,11 @@ static int is_vmap_hugepage(unsigned long addr)
static unsigned long __sp_remap_get_pfn(unsigned long kva)
{
- unsigned long pfn;
+ unsigned long pfn = -EINVAL;
+
+ /* sp_make_share_k2u only support vmalloc address */
if (is_vmalloc_addr((void *)kva))
pfn = vmalloc_to_pfn((void *)kva);
- else
- pfn = virt_to_pfn(kva);
return pfn;
}
--
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