The patch titled Subject: mm: remove PageSwapBacked has been added to the -mm mm-unstable branch. Its filename is mm-remove-pageswapbacked.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-remove-pageswapbacked.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx> Subject: mm: remove PageSwapBacked Date: Wed, 21 Aug 2024 20:34:35 +0100 This flag is now only used on folios, so we can remove all the page accessors. Link: https://lkml.kernel.org/r/20240821193445.2294269-3-willy@xxxxxxxxxxxxx Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/page-flags.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) --- a/include/linux/page-flags.h~mm-remove-pageswapbacked +++ a/include/linux/page-flags.h @@ -528,9 +528,9 @@ PAGEFLAG(XenRemapped, xen_remapped, PF_N PAGEFLAG(Reserved, reserved, PF_NO_COMPOUND) __CLEARPAGEFLAG(Reserved, reserved, PF_NO_COMPOUND) __SETPAGEFLAG(Reserved, reserved, PF_NO_COMPOUND) -PAGEFLAG(SwapBacked, swapbacked, PF_NO_TAIL) - __CLEARPAGEFLAG(SwapBacked, swapbacked, PF_NO_TAIL) - __SETPAGEFLAG(SwapBacked, swapbacked, PF_NO_TAIL) +FOLIO_FLAG(swapbacked, FOLIO_HEAD_PAGE) + __FOLIO_CLEAR_FLAG(swapbacked, FOLIO_HEAD_PAGE) + __FOLIO_SET_FLAG(swapbacked, FOLIO_HEAD_PAGE) /* * Private page markings that may be used by the filesystem that owns the page _ Patches currently in -mm which might be from willy@xxxxxxxxxxxxx are fs-remove-calls-to-set-and-clear-the-folio-error-flag.patch mm-remove-pg_error.patch mm-return-the-folio-from-swapin_readahead.patch printf-remove-%pgt-support.patch mm-introduce-page_mapcount_is_type.patch mm-support-only-one-page_type-per-page.patch zsmalloc-use-all-available-24-bits-of-page_type.patch mm-remove-pageactive.patch mm-remove-pageswapbacked.patch mm-remove-pagereadahead.patch mm-remove-pageswapcache.patch mm-remove-pageunevictable.patch mm-remove-pagemlocked.patch mm-remove-pageownerpriv1.patch mm-remove-page_has_private.patch mm-rename-pg_mappedtodisk-to-pg_owner_2.patch x86-remove-pg_uncached.patch