Commit 94326d31 authored by Matthew Wilcox (Oracle)'s avatar Matthew Wilcox (Oracle) Committed by Andrew Morton
Browse files

mm: remove mlock_count from struct page 

All users now use folio->mlock_count so we can remove this element of
struct page.  Move the useful comments over to struct folio.

Link: https://lkml.kernel.org/r/20250903191041.1630338-1-willy@infradead.org


Signed-off-by: default avatarMatthew Wilcox (Oracle) <willy@infradead.org>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 8583bb0f

include/linux/mm_types.h

+2 −8
Original line number Diff line number Diff line
@@ -94,14 +94,6 @@ struct page { 
			union {

				struct list_head lru;



				/* Or, for the Unevictable "LRU list" slot */

				struct {

					/* Always even, to negate PageTail */

					void *__filler;

					/* Count page's or folio's mlocks */

					unsigned int mlock_count;

				};



				/* Or, free page */

				struct list_head buddy_list;

				struct list_head pcp_list;
@@ -391,7 +383,9 @@ struct folio { 
			union {

				struct list_head lru;

	/* private: avoid cluttering the output */

				/* For the Unevictable "LRU list" slot */

				struct {

					/* Avoid compound_head */

					void *__filler;

	/* public: */

					unsigned int mlock_count;