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Subject[PATCH v4 04/15] mm,madvise: Refactor madvise_inject_error
Date
Make a proper if-else condition for {hard,soft}-offline.

Signed-off-by: Oscar Salvador <osalvador@suse.com>
Acked-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
---
mm/madvise.c | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/mm/madvise.c b/mm/madvise.c
index 1fe89a5b8d33..dd2173d8f4e5 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -886,7 +886,6 @@ static long madvise_remove(struct vm_area_struct *vma,
static int madvise_inject_error(int behavior,
unsigned long start, unsigned long end)
{
- struct page *page;
struct zone *zone;
unsigned long size;

@@ -896,6 +895,7 @@ static int madvise_inject_error(int behavior,

for (; start < end; start += size) {
unsigned long pfn;
+ struct page *page;
int ret;

ret = get_user_pages_fast(start, 1, 0, &page);
@@ -925,17 +925,15 @@ static int madvise_inject_error(int behavior,

if (behavior == MADV_SOFT_OFFLINE) {
pr_info("Soft offlining pfn %#lx at process virtual address %#lx\n",
- pfn, start);
+ pfn, start);

ret = soft_offline_page(pfn, 0);
- if (ret)
- return ret;
- continue;
+ } else {
+ pr_info("Injecting memory failure for pfn %#lx at process virtual address %#lx\n",
+ pfn, start);
+ ret = memory_failure(pfn, 0);
}

- pr_info("Injecting memory failure for pfn %#lx at process virtual address %#lx\n",
- pfn, start);
- ret = memory_failure(pfn, 0);
if (ret)
return ret;
}
--
2.26.2
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