[merged mm-stable] mm-page_allocc-rename-check_free_page-to-free_page_is_bad.patch removed from -mm tree

[merged mm-stable] mm-page_allocc-rename-check_free_page-to-free_page_is_bad.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm/page_alloc.c: rename check_free_page() to free_page_is_bad()
has been removed from the -mm tree.  Its filename was
     mm-page_allocc-rename-check_free_page-to-free_page_is_bad.patch

This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Andrew Morton <akpm@linux-foundation.org>
Subject: mm/page_alloc.c: rename check_free_page() to free_page_is_bad()
Date: Tue Sep 13 03:20:48 PM PDT 2022

The name "check_free_page()" provides no information regarding its return
value when the page is indeed found to be bad.

Renaming it to "free_page_is_bad()" makes it clear that a `true' return
value means the page was bad.

And make it return a bool, not an int.

[akpm@linux-foundation.org: don't use bool as int]
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: ke.wang <ke.wang@unisoc.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Zhaoyang Huang <huangzhaoyang@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/page_alloc.c |   20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

--- a/mm/page_alloc.c~mm-page_allocc-rename-check_free_page-to-free_page_is_bad
+++ a/mm/page_alloc.c
@@ -1285,20 +1285,20 @@ static const char *page_bad_reason(struc
 	return bad_reason;
 }
 
-static void check_free_page_bad(struct page *page)
+static void free_page_is_bad_report(struct page *page)
 {
 	bad_page(page,
 		 page_bad_reason(page, PAGE_FLAGS_CHECK_AT_FREE));
 }
 
-static inline int check_free_page(struct page *page)
+static inline bool free_page_is_bad(struct page *page)
 {
 	if (likely(page_expected_state(page, PAGE_FLAGS_CHECK_AT_FREE)))
-		return 0;
+		return false;
 
 	/* Something has gone sideways, find it */
-	check_free_page_bad(page);
-	return 1;
+	free_page_is_bad_report(page);
+	return true;
 }
 
 static int free_tail_pages_check(struct page *head_page, struct page *page)
@@ -1430,7 +1430,7 @@ static __always_inline bool free_pages_p
 		for (i = 1; i < (1 << order); i++) {
 			if (compound)
 				bad += free_tail_pages_check(page, page + i);
-			if (unlikely(check_free_page(page + i))) {
+			if (unlikely(free_page_is_bad(page + i))) {
 				bad++;
 				continue;
 			}
@@ -1441,8 +1441,8 @@ static __always_inline bool free_pages_p
 		page->mapping = NULL;
 	if (memcg_kmem_enabled() && PageMemcgKmem(page))
 		__memcg_kmem_uncharge_page(page, order);
-	if (check_free)
-		bad += check_free_page(page);
+	if (check_free && free_page_is_bad(page))
+		bad++;
 	if (bad)
 		return false;
 
@@ -1504,7 +1504,7 @@ static bool free_pcp_prepare(struct page
 static bool bulkfree_pcp_prepare(struct page *page)
 {
 	if (debug_pagealloc_enabled_static())
-		return check_free_page(page);
+		return free_page_is_bad(page);
 	else
 		return false;
 }
@@ -1525,7 +1525,7 @@ static bool free_pcp_prepare(struct page
 
 static bool bulkfree_pcp_prepare(struct page *page)
 {
-	return check_free_page(page);
+	return free_page_is_bad(page);
 }
 #endif /* CONFIG_DEBUG_VM */
 
_

Patches currently in -mm which might be from akpm@linux-foundation.org are

fs-uninline-inode_maybe_inc_iversion.patch
ipc-msg-mitigate-the-lock-contention-with-percpu-counter-checkpatch-fixes.patch
ipc-msg-mitigate-the-lock-contention-with-percpu-counter-fix-fix.patch