release 6.15.5

debian/patches/patchset-pf/fixes/0007-mm-compaction-use-folio-in-hugetlb-pathway.patch

@@ -0,0 +1,86 @@
+From 336152e6ec30b13f5617ee9b702beb5bc310c6a7 Mon Sep 17 00:00:00 2001
+From: "Vishal Moola (Oracle)" <vishal.moola@gmail.com>
+Date: Mon, 31 Mar 2025 19:10:25 -0700
+Subject: mm/compaction: use folio in hugetlb pathway
+
+Use a folio in the hugetlb pathway during the compaction migrate-able
+pageblock scan.
+
+This removes a call to compound_head().
+
+Link: https://lkml.kernel.org/r/20250401021025.637333-2-vishal.moola@gmail.com
+Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
+Acked-by: Oscar Salvador <osalvador@suse.de>
+Reviewed-by: Zi Yan <ziy@nvidia.com>
+Cc: Muchun Song <muchun.song@linux.dev>
+Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
+---
+ include/linux/hugetlb.h | 4 ++--
+ mm/compaction.c         | 8 ++++----
+ mm/hugetlb.c            | 3 +--
+ 3 files changed, 7 insertions(+), 8 deletions(-)
+
+--- a/include/linux/hugetlb.h
++++ b/include/linux/hugetlb.h
+@@ -703,7 +703,7 @@ struct huge_bootmem_page {
+ 
+ bool hugetlb_bootmem_page_zones_valid(int nid, struct huge_bootmem_page *m);
+ 
+-int isolate_or_dissolve_huge_page(struct page *page, struct list_head *list);
++int isolate_or_dissolve_huge_folio(struct folio *folio, struct list_head *list);
+ int replace_free_hugepage_folios(unsigned long start_pfn, unsigned long end_pfn);
+ void wait_for_freed_hugetlb_folios(void);
+ struct folio *alloc_hugetlb_folio(struct vm_area_struct *vma,
+@@ -1091,7 +1091,7 @@ static inline struct folio *filemap_lock
+ 	return NULL;
+ }
+ 
+-static inline int isolate_or_dissolve_huge_page(struct page *page,
++static inline int isolate_or_dissolve_huge_folio(struct folio *folio,
+ 						struct list_head *list)
+ {
+ 	return -ENOMEM;
+--- a/mm/compaction.c
++++ b/mm/compaction.c
+@@ -1001,10 +1001,11 @@ isolate_migratepages_block(struct compac
+ 				locked = NULL;
+ 			}
+ 
+-			ret = isolate_or_dissolve_huge_page(page, &cc->migratepages);
++			folio = page_folio(page);
++			ret = isolate_or_dissolve_huge_folio(folio, &cc->migratepages);
+ 
+ 			/*
+-			 * Fail isolation in case isolate_or_dissolve_huge_page()
++			 * Fail isolation in case isolate_or_dissolve_huge_folio()
+ 			 * reports an error. In case of -ENOMEM, abort right away.
+ 			 */
+ 			if (ret < 0) {
+@@ -1016,12 +1017,11 @@ isolate_migratepages_block(struct compac
+ 				goto isolate_fail;
+ 			}
+ 
+-			if (PageHuge(page)) {
++			if (folio_test_hugetlb(folio)) {
+ 				/*
+ 				 * Hugepage was successfully isolated and placed
+ 				 * on the cc->migratepages list.
+ 				 */
+-				folio = page_folio(page);
+ 				low_pfn += folio_nr_pages(folio) - 1;
+ 				goto isolate_success_no_list;
+ 			}
+--- a/mm/hugetlb.c
++++ b/mm/hugetlb.c
+@@ -2896,10 +2896,9 @@ free_new:
+ 	return ret;
+ }
+ 
+-int isolate_or_dissolve_huge_page(struct page *page, struct list_head *list)
++int isolate_or_dissolve_huge_folio(struct folio *folio, struct list_head *list)
+ {
+ 	struct hstate *h;
+-	struct folio *folio = page_folio(page);
+ 	int ret = -EBUSY;
+ 
+ 	/*