path: root/mm/internal.h
diff options
authorMatthew Wilcox (Oracle) <>2020-12-08 01:25:39 -0500
committerMatthew Wilcox (Oracle) <>2021-09-27 09:27:30 -0400
commit575ced1c8b0d3b578b933a68ce67ddaff3df9506 (patch)
tree5d41ccd45954c69f7584e9bffda3472b613f075c /mm/internal.h
parent9138e47ed425246102317dbe452f7f0d4a54c4a2 (diff)
mm/swap: Add folio_rotate_reclaimable()
Convert rotate_reclaimable_page() to folio_rotate_reclaimable(). This eliminates all five of the calls to compound_head() in this function, saving 75 bytes at the cost of adding 15 bytes to its one caller, end_page_writeback(). We also save 36 bytes from pagevec_move_tail_fn() due to using folios there. Net 96 bytes savings. Also move its declaration to mm/internal.h as it's only used by filemap.c. Signed-off-by: Matthew Wilcox (Oracle) <> Acked-by: Vlastimil Babka <> Reviewed-by: William Kucharski <> Reviewed-by: Christoph Hellwig <> Acked-by: Kirill A. Shutemov <> Acked-by: Mike Rapoport <> Reviewed-by: David Howells <>
Diffstat (limited to 'mm/internal.h')
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/internal.h b/mm/internal.h
index cf3cb933eba3..1a84484f8650 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -35,6 +35,7 @@
void page_writeback_init(void);
vm_fault_t do_swap_page(struct vm_fault *vmf);
+void folio_rotate_reclaimable(struct folio *folio);
void free_pgtables(struct mmu_gather *tlb, struct vm_area_struct *start_vma,
unsigned long floor, unsigned long ceiling);