[PATCH mm-unstable 4/8] mm/memory-failure: convert free_raw_hwp_pages() to folios

From: Sidhartha Kumar
Date: Thu Jan 12 2023 - 16:04:53 EST


Change free_raw_hwp_pages() to folio_free_raw_hwp(), converts two users
of hugetlb specific page macro users to their folio equivalents.

Signed-off-by: Sidhartha Kumar <sidhartha.kumar@xxxxxxxxxx>
---
mm/memory-failure.c | 22 ++++++++++++----------
1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 205272c64f37..d5c828328e32 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1766,23 +1766,23 @@ static int hugetlb_set_page_hwpoison(struct page *hpage, struct page *page)
return ret;
}

-static unsigned long free_raw_hwp_pages(struct page *hpage, bool move_flag)
+static unsigned long folio_free_raw_hwp(struct folio *folio, bool move_flag)
{
/*
- * HPageVmemmapOptimized hugepages can't be freed because struct
+ * hugetlb_vmemmap_optimized hugepages can't be freed because struct
* pages for tail pages are required but they don't exist.
*/
- if (move_flag && HPageVmemmapOptimized(hpage))
+ if (move_flag && folio_test_hugetlb_vmemmap_optimized(folio))
return 0;

/*
- * HPageRawHwpUnreliable hugepages shouldn't be unpoisoned by
+ * hugetlb_raw_hwp_unreliable hugepages shouldn't be unpoisoned by
* definition.
*/
- if (HPageRawHwpUnreliable(hpage))
+ if (folio_test_hugetlb_raw_hwp_unreliable(folio))
return 0;

- return __free_raw_hwp_pages(hpage, move_flag);
+ return __free_raw_hwp_pages(&folio->page, move_flag);
}

void folio_clear_hugetlb_hwpoison(struct folio *folio)
@@ -1790,7 +1790,7 @@ void folio_clear_hugetlb_hwpoison(struct folio *folio)
if (folio_test_hugetlb_raw_hwp_unreliable(folio))
return;
folio_clear_hwpoison(folio);
- free_raw_hwp_pages(&folio->page, true);
+ folio_free_raw_hwp(folio, true);
}

/*
@@ -1929,7 +1929,7 @@ static inline int try_memory_failure_hugetlb(unsigned long pfn, int flags, int *
return 0;
}

-static inline unsigned long free_raw_hwp_pages(struct page *hpage, bool flag)
+static inline unsigned long folio_free_raw_hwp(struct folio *folio, bool flag)
{
return 0;
}
@@ -2336,6 +2336,7 @@ core_initcall(memory_failure_init);
int unpoison_memory(unsigned long pfn)
{
struct page *page;
+ struct folio *folio;
struct page *p;
int ret = -EBUSY;
unsigned long count = 1;
@@ -2348,6 +2349,7 @@ int unpoison_memory(unsigned long pfn)

p = pfn_to_page(pfn);
page = compound_head(p);
+ folio = page_folio(p);

mutex_lock(&mf_mutex);

@@ -2389,7 +2391,7 @@ int unpoison_memory(unsigned long pfn)
if (!ret) {
if (PageHuge(p)) {
huge = true;
- count = free_raw_hwp_pages(page, false);
+ count = folio_free_raw_hwp(folio, false);
if (count == 0) {
ret = -EBUSY;
goto unlock_mutex;
@@ -2405,7 +2407,7 @@ int unpoison_memory(unsigned long pfn)
} else {
if (PageHuge(p)) {
huge = true;
- count = free_raw_hwp_pages(page, false);
+ count = folio_free_raw_hwp(folio, false);
if (count == 0) {
ret = -EBUSY;
put_page(page);
--
2.39.0