The patch titled
Subject: mm/hugetlb: add folio support to hugetlb specific flag macros
has been added to the -mm mm-unstable branch. Its filename is
mm-hugetlb-add-folio-support-to-hugetlb-specific-flag-macros.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-hugetlb-add-folio-support-to-hugetlb-specific-flag-macros.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Sidhartha Kumar <sidhartha.kumar@xxxxxxxxxx>
Subject: mm/hugetlb: add folio support to hugetlb specific flag macros
Date: Thu, 22 Sep 2022 10:42:03 -0500
Allow the macros which test, set, and clear hugetlb specific page flags to
take a hugetlb folio as an input. The macrros are generated as
folio_{test, set, clear}_hugetlb_{restore_reserve, migratable, temporary,
freed, vmemmap_optimized, raw_hwp_unreliable}.
Link: https://lkml.kernel.org/r/20220922154207.1575343-1-sidhartha.kumar@xxxxxxxxxx
Link: https://lkml.kernel.org/r/20220922154207.1575343-2-sidhartha.kumar@xxxxxxxxxx
Signed-off-by: Sidhartha Kumar <sidhartha.kumar@xxxxxxxxxx>
Reviewed-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Reviewed-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Colin Cross <ccross@xxxxxxxxxx>
Cc: David Howells <dhowells@xxxxxxxxxx>
Cc: "Eric W . Biederman" <ebiederm@xxxxxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: kernel test robot <lkp@xxxxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Cc: Peter Xu <peterx@xxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: William Kucharski <william.kucharski@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/hugetlb.h | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
--- a/include/linux/hugetlb.h~mm-hugetlb-add-folio-support-to-hugetlb-specific-flag-macros
+++ a/include/linux/hugetlb.h
@@ -589,26 +589,50 @@ enum hugetlb_page_flags {
*/
#ifdef CONFIG_HUGETLB_PAGE
#define TESTHPAGEFLAG(uname, flname) \
+static __always_inline \
+bool folio_test_hugetlb_##flname(struct folio *folio) \
+ { void *private = &folio->private; \
+ return test_bit(HPG_##flname, private); \
+ } \
static inline int HPage##uname(struct page *page) \
{ return test_bit(HPG_##flname, &(page->private)); }
#define SETHPAGEFLAG(uname, flname) \
+static __always_inline \
+void folio_set_hugetlb_##flname(struct folio *folio) \
+ { void *private = &folio->private; \
+ set_bit(HPG_##flname, private); \
+ } \
static inline void SetHPage##uname(struct page *page) \
{ set_bit(HPG_##flname, &(page->private)); }
#define CLEARHPAGEFLAG(uname, flname) \
+static __always_inline \
+void folio_clear_hugetlb_##flname(struct folio *folio) \
+ { void *private = &folio->private; \
+ clear_bit(HPG_##flname, private); \
+ } \
static inline void ClearHPage##uname(struct page *page) \
{ clear_bit(HPG_##flname, &(page->private)); }
#else
#define TESTHPAGEFLAG(uname, flname) \
+static inline bool \
+folio_test_hugetlb_##flname(struct folio *folio) \
+ { return 0; } \
static inline int HPage##uname(struct page *page) \
{ return 0; }
#define SETHPAGEFLAG(uname, flname) \
+static inline void \
+folio_set_hugetlb_##flname(struct folio *folio) \
+ { } \
static inline void SetHPage##uname(struct page *page) \
{ }
#define CLEARHPAGEFLAG(uname, flname) \
+static inline void \
+folio_clear_hugetlb_##flname(struct folio *folio) \
+ { } \
static inline void ClearHPage##uname(struct page *page) \
{ }
#endif
_
Patches currently in -mm which might be from sidhartha.kumar@xxxxxxxxxx are
mm-hugetlb-add-folio-support-to-hugetlb-specific-flag-macros.patch
mm-add-private-field-of-first-tail-to-struct-page-and-struct-folio.patch
mm-hugetlb-add-hugetlb_folio_subpool-helpers.patch
hugetlbfs-convert-hugetlb_delete_from_page_cache-to-use-folios.patch
mm-hugetlb-add-folio_hstate.patch
mm-hugetlb_cgroup-convert-__set_hugetlb_cgroup-to-folios.patch
mm-hugetlb_cgroup-convert-hugetlb_cgroup_from_page-to-folios.patch
mm-hugetlb_cgroup-convert-set_hugetlb_cgroup-to-folios.patch
mm-hugetlb_cgroup-convert-hugetlb_cgroup_migrate-to-folios.patch
mm-hugetlb-convert-isolate_or_dissolve_huge_page-to-folios.patch
mm-hugetlb-convert-free_huge_page-to-folios.patch
mm-hugetlb_cgroup-convert-hugetlb_cgroup_uncharge_page-to-folios.patch
mm-hugeltb_cgroup-convert-hugetlb_cgroup_commit_charge-to-folios.patch
mm-hugetlb-convert-move_hugetlb_state-to-folios.patch
