Removes two calls to compound_head(). Move the prototype to
internal.h; we definitely don't want code outside mm using it.
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
include/linux/mm.h | 1 -
mm/hwpoison-inject.c | 11 ++++++-----
mm/internal.h | 1 +
mm/memory-failure.c | 15 ++++++++++-----
4 files changed, 17 insertions(+), 11 deletions(-)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index b9173e230804..19a67f45907b 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -4011,7 +4011,6 @@ int mf_dax_kill_procs(struct address_space *mapping, pgoff_t index,
extern int memory_failure(unsigned long pfn, int flags);
extern void memory_failure_queue_kick(int cpu);
extern int unpoison_memory(unsigned long pfn);
-extern void shake_page(struct page *p);
extern atomic_long_t num_poisoned_pages __read_mostly;
extern int soft_offline_page(unsigned long pfn, int flags);
#ifdef CONFIG_MEMORY_FAILURE
diff --git a/mm/hwpoison-inject.c b/mm/hwpoison-inject.c
index d0548e382b6b..c9d653f51e45 100644
--- a/mm/hwpoison-inject.c
+++ b/mm/hwpoison-inject.c
@@ -15,7 +15,7 @@ static int hwpoison_inject(void *data, u64 val)
{
unsigned long pfn = val;
struct page *p;
- struct page *hpage;
+ struct folio *folio;
int err;
if (!capable(CAP_SYS_ADMIN))
@@ -25,16 +25,17 @@ static int hwpoison_inject(void *data, u64 val)
return -ENXIO;
p = pfn_to_page(pfn);
- hpage = compound_head(p);
+ folio = page_folio(p);
if (!hwpoison_filter_enable)
goto inject;
- shake_page(hpage);
+ shake_folio(folio);
/*
* This implies unable to support non-LRU pages except free page.
*/
- if (!PageLRU(hpage) && !PageHuge(p) && !is_free_buddy_page(p))
+ if (!folio_test_lru(folio) && !folio_test_hugetlb(folio) &&
+ !is_free_buddy_page(p))
return 0;
/*
@@ -42,7 +43,7 @@ static int hwpoison_inject(void *data, u64 val)
* the targeted owner (or on a free page).
* memory_failure() will redo the check reliably inside page lock.
*/
- err = hwpoison_filter(hpage);
+ err = hwpoison_filter(&folio->page);
if (err)
return 0;
diff --git a/mm/internal.h b/mm/internal.h
index 57c1055d5568..14cdc9ccb582 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -1010,6 +1010,7 @@ static inline int find_next_best_node(int node, nodemask_t *used_node_mask)
/*
* mm/memory-failure.c
*/
+void shake_folio(struct folio *folio);
extern int hwpoison_filter(struct page *p);
extern u32 hwpoison_filter_dev_major;
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index f94d85075ec1..2e64e132bba1 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -357,20 +357,25 @@ static int kill_proc(struct to_kill *tk, unsigned long pfn, int flags)
* Unknown page type encountered. Try to check whether it can turn PageLRU by
* lru_add_drain_all.
*/
-void shake_page(struct page *p)
+void shake_folio(struct folio *folio)
{
- if (PageHuge(p))
+ if (folio_test_hugetlb(folio))
return;
/*
* TODO: Could shrink slab caches here if a lightweight range-based
* shrinker will be available.
*/
- if (PageSlab(p))
+ if (folio_test_slab(folio))
return;
lru_add_drain_all();
}
-EXPORT_SYMBOL_GPL(shake_page);
+EXPORT_SYMBOL_GPL(shake_folio);
+
+static void shake_page(struct page *page)
+{
+ shake_folio(page_folio(page));
+}
static unsigned long dev_pagemap_mapping_shift(struct vm_area_struct *vma,
unsigned long address)
@@ -1623,7 +1628,7 @@ static bool hwpoison_user_mappings(struct page *p, unsigned long pfn,
* shake_page() again to ensure that it's flushed.
*/
if (mlocked)
- shake_page(hpage);
+ shake_folio(folio);
/*
* Now that the dirty bit has been propagated to the
