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authorYunfeng Ye <yeyunfeng@huawei.com>2019-11-30 17:57:42 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-12-01 12:59:09 -0800
commitd3cd257ce15bad10a86f5064433c9dda4d019697 (patch)
tree3eb5e51a7241e8ee7da6b79e26aabceb6bbc38df /mm
parent5d42ab293f5181609ea18f1f2ab85cd4cfc8efb2 (diff)
mm/madvise.c: replace with page_size() in madvise_inject_error()
page_size() is supported after the commit a50b854e073c ("mm: introduce page_size()"). Use page_size() in madvise_inject_error() for readability. [akpm@linux-foundation.org: use ulong for `size', per David] Link: http://lkml.kernel.org/r/29dce60c-38d6-0220-f292-e298f0c78c4d@huawei.com Signed-off-by: Yunfeng Ye <yeyunfeng@huawei.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: David Rientjes <rientjes@google.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Michal Hocko <mhocko@suse.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Jan Kara <jack@suse.cz> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Hu Shiyuan <hushiyuan@huawei.com> Cc: Feilong Lin <linfeilong@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/madvise.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/mm/madvise.c b/mm/madvise.c
index 63e130800570..e808dbeb27f3 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -864,13 +864,13 @@ static int madvise_inject_error(int behavior,
{
struct page *page;
struct zone *zone;
- unsigned int order;
+ unsigned long size;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- for (; start < end; start += PAGE_SIZE << order) {
+ for (; start < end; start += size) {
unsigned long pfn;
int ret;
@@ -882,9 +882,9 @@ static int madvise_inject_error(int behavior,
/*
* When soft offlining hugepages, after migrating the page
* we dissolve it, therefore in the second loop "page" will
- * no longer be a compound page, and order will be 0.
+ * no longer be a compound page.
*/
- order = compound_order(compound_head(page));
+ size = page_size(compound_head(page));
if (PageHWPoison(page)) {
put_page(page);