| Message ID | 20210715033704.692967-12-willy@infradead.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Memory folios | expand |
On Thu, Jul 15, 2021 at 04:34:57AM +0100, Matthew Wilcox (Oracle) wrote: > Handle arbitrary-order folios being added to the LRU. By definition, > all pages being added to the LRU were already head or base pages, but > call page_folio() on them anyway to get the type right and avoid the > buried calls to compound_head(). > > Saves 783 bytes of kernel text; no functions grow. > > Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> > Reviewed-by: Yu Zhao <yuzhao@google.com> > Reviewed-by: Christoph Hellwig <hch@lst.de> > Reviewed-by: David Howells <dhowells@redhat.com> > Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> > --- > include/linux/mm_inline.h | 98 ++++++++++++++++++++++------------ > include/trace/events/pagemap.h | 2 +- > 2 files changed, 65 insertions(+), 35 deletions(-) Acked-by: Mike Rapoport <rppt@linux.ibm.com> > diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h > index 355ea1ee32bd..ee155d19885e 100644 > --- a/include/linux/mm_inline.h > +++ b/include/linux/mm_inline.h > @@ -6,22 +6,27 @@ > #include <linux/swap.h> > > /** > - * page_is_file_lru - should the page be on a file LRU or anon LRU? > - * @page: the page to test > + * folio_is_file_lru - should the folio be on a file LRU or anon LRU? > + * @folio: the folio to test > * > - * Returns 1 if @page is a regular filesystem backed page cache page or a lazily > - * freed anonymous page (e.g. via MADV_FREE). Returns 0 if @page is a normal > - * anonymous page, a tmpfs page or otherwise ram or swap backed page. Used by > - * functions that manipulate the LRU lists, to sort a page onto the right LRU > - * list. > + * Returns 1 if @folio is a regular filesystem backed page cache folio > + * or a lazily freed anonymous folio (e.g. via MADV_FREE). Returns 0 if > + * @folio is a normal anonymous folio, a tmpfs folio or otherwise ram or > + * swap backed folio. Used by functions that manipulate the LRU lists, > + * to sort a folio onto the right LRU list. > * > * We would like to get this info without a page flag, but the state > - * needs to survive until the page is last deleted from the LRU, which > + * needs to survive until the folio is last deleted from the LRU, which > * could be as far down as __page_cache_release. It seems mm_inline.h is not a part of generated API docs, otherwise kerneldoc would be unhappy about missing Return: description. > */ > +static inline int folio_is_file_lru(struct folio *folio) > +{ > + return !folio_test_swapbacked(folio); > +} > + > static inline int page_is_file_lru(struct page *page) > { > - return !PageSwapBacked(page); > + return folio_is_file_lru(page_folio(page)); > } > > static __always_inline void update_lru_size(struct lruvec *lruvec, > @@ -39,69 +44,94 @@ static __always_inline void update_lru_size(struct lruvec *lruvec, > } > > /** > - * __clear_page_lru_flags - clear page lru flags before releasing a page > - * @page: the page that was on lru and now has a zero reference > + * __folio_clear_lru_flags - clear page lru flags before releasing a page > + * @folio: The folio that was on lru and now has a zero reference > */ > -static __always_inline void __clear_page_lru_flags(struct page *page) > +static __always_inline void __folio_clear_lru_flags(struct folio *folio) > { > - VM_BUG_ON_PAGE(!PageLRU(page), page); > + VM_BUG_ON_FOLIO(!folio_test_lru(folio), folio); > > - __ClearPageLRU(page); > + __folio_clear_lru(folio); > > /* this shouldn't happen, so leave the flags to bad_page() */ > - if (PageActive(page) && PageUnevictable(page)) > + if (folio_test_active(folio) && folio_test_unevictable(folio)) > return; > > - __ClearPageActive(page); > - __ClearPageUnevictable(page); > + __folio_clear_active(folio); > + __folio_clear_unevictable(folio); > +} > + > +static __always_inline void __clear_page_lru_flags(struct page *page) > +{ > + __folio_clear_lru_flags(page_folio(page)); > } > > /** > - * page_lru - which LRU list should a page be on? > - * @page: the page to test > + * folio_lru_list - which LRU list should a folio be on? > + * @folio: the folio to test > * > - * Returns the LRU list a page should be on, as an index > + * Returns the LRU list a folio should be on, as an index ^ Return: > * into the array of LRU lists. > */ > -static __always_inline enum lru_list page_lru(struct page *page) > +static __always_inline enum lru_list folio_lru_list(struct folio *folio) > { > enum lru_list lru; > > - VM_BUG_ON_PAGE(PageActive(page) && PageUnevictable(page), page); > + VM_BUG_ON_FOLIO(folio_test_active(folio) && folio_test_unevictable(folio), folio); > > - if (PageUnevictable(page)) > + if (folio_test_unevictable(folio)) > return LRU_UNEVICTABLE; > > - lru = page_is_file_lru(page) ? LRU_INACTIVE_FILE : LRU_INACTIVE_ANON; > - if (PageActive(page)) > + lru = folio_is_file_lru(folio) ? LRU_INACTIVE_FILE : LRU_INACTIVE_ANON; > + if (folio_test_active(folio)) > lru += LRU_ACTIVE; > > return lru; > } . . .
On Tue, Jul 20, 2021 at 01:44:10PM +0300, Mike Rapoport wrote: > > /** > > - * page_is_file_lru - should the page be on a file LRU or anon LRU? > > - * @page: the page to test > > + * folio_is_file_lru - should the folio be on a file LRU or anon LRU? > > + * @folio: the folio to test > > * > > - * Returns 1 if @page is a regular filesystem backed page cache page or a lazily > > - * freed anonymous page (e.g. via MADV_FREE). Returns 0 if @page is a normal > > - * anonymous page, a tmpfs page or otherwise ram or swap backed page. Used by > > - * functions that manipulate the LRU lists, to sort a page onto the right LRU > > - * list. > > + * Returns 1 if @folio is a regular filesystem backed page cache folio > > + * or a lazily freed anonymous folio (e.g. via MADV_FREE). Returns 0 if > > + * @folio is a normal anonymous folio, a tmpfs folio or otherwise ram or > > + * swap backed folio. Used by functions that manipulate the LRU lists, > > + * to sort a folio onto the right LRU list. > > * > > * We would like to get this info without a page flag, but the state > > - * needs to survive until the page is last deleted from the LRU, which > > + * needs to survive until the folio is last deleted from the LRU, which > > * could be as far down as __page_cache_release. > > It seems mm_inline.h is not a part of generated API docs, otherwise > kerneldoc would be unhappy about missing Return: description. kernel-doc doesn't warn about that by default. # This check emits a lot of warnings at the moment, because many # functions don't have a 'Return' doc section. So until the number # of warnings goes sufficiently down, the check is only performed in # verbose mode. # TODO: always perform the check. if ($verbose && !$noret) { check_return_section($file, $declaration_name, $return_type); }
On Tue, Jul 20, 2021 at 01:44:10PM +0300, Mike Rapoport wrote: > It seems mm_inline.h is not a part of generated API docs, otherwise > kerneldoc would be unhappy about missing Return: description. It isn't, but I did add mm_inline.h to Documentation as part of this patch (thanks!) and made this change: /** - * folio_is_file_lru - should the folio be on a file LRU or anon LRU? - * @folio: the folio to test - * - * Returns 1 if @folio is a regular filesystem backed page cache folio - * or a lazily freed anonymous folio (e.g. via MADV_FREE). Returns 0 if - * @folio is a normal anonymous folio, a tmpfs folio or otherwise ram or - * swap backed folio. Used by functions that manipulate the LRU lists, - * to sort a folio onto the right LRU list. + * folio_is_file_lru - Should the folio be on a file LRU or anon LRU? + * @folio: The folio to test. * * We would like to get this info without a page flag, but the state * needs to survive until the folio is last deleted from the LRU, which * could be as far down as __page_cache_release. + * + * Return: An integer (not a boolean!) used to sort a folio onto the + * right LRU list and to account folios correctly. + * 1 if @folio is a regular filesystem backed page cache folio + * or a lazily freed anonymous folio (e.g. via MADV_FREE). + * 0 if @folio is a normal anonymous folio, a tmpfs folio or otherwise + * ram or swap backed folio. */ I wanted to turn those last two sentences into a list, but my kernel-doc-fu abandoned me. Feel free to submit a follow-on patch to fix that ;-)
On Wed, Jul 21, 2021 at 05:08:44AM +0100, Matthew Wilcox wrote: > On Tue, Jul 20, 2021 at 01:44:10PM +0300, Mike Rapoport wrote: > > It seems mm_inline.h is not a part of generated API docs, otherwise > > kerneldoc would be unhappy about missing Return: description. > > It isn't, but I did add mm_inline.h to Documentation as part of this > patch (thanks!) and made this change: > > /** > - * folio_is_file_lru - should the folio be on a file LRU or anon LRU? > - * @folio: the folio to test > - * > - * Returns 1 if @folio is a regular filesystem backed page cache folio > - * or a lazily freed anonymous folio (e.g. via MADV_FREE). Returns 0 if > - * @folio is a normal anonymous folio, a tmpfs folio or otherwise ram or > - * swap backed folio. Used by functions that manipulate the LRU lists, > - * to sort a folio onto the right LRU list. > + * folio_is_file_lru - Should the folio be on a file LRU or anon LRU? > + * @folio: The folio to test. > * > * We would like to get this info without a page flag, but the state > * needs to survive until the folio is last deleted from the LRU, which > * could be as far down as __page_cache_release. > + * > + * Return: An integer (not a boolean!) used to sort a folio onto the > + * right LRU list and to account folios correctly. > + * 1 if @folio is a regular filesystem backed page cache folio > + * or a lazily freed anonymous folio (e.g. via MADV_FREE). > + * 0 if @folio is a normal anonymous folio, a tmpfs folio or otherwise > + * ram or swap backed folio. > */ > > I wanted to turn those last two sentences into a list, but my > kernel-doc-fu abandoned me. Feel free to submit a follow-on patch to > fix that ;-) Here it is ;-) Feel free to fold it into the original commit if you'd like to. From 636d1715252f7bd1e87219797153b8baa28774af Mon Sep 17 00:00:00 2001 From: Mike Rapoport <rppt@linux.ibm.com> Date: Wed, 21 Jul 2021 11:35:15 +0300 Subject: [PATCH] mm/docs: folio_is_file_lru: make return description a list Reformat return value description of folio_is_file_lru() so that will be presented as a list in the generated output. Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> --- include/linux/mm_inline.h | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h index d39537c5471b..b263ac0a2c3a 100644 --- a/include/linux/mm_inline.h +++ b/include/linux/mm_inline.h @@ -15,10 +15,11 @@ * * Return: An integer (not a boolean!) used to sort a folio onto the * right LRU list and to account folios correctly. - * 1 if @folio is a regular filesystem backed page cache folio - * or a lazily freed anonymous folio (e.g. via MADV_FREE). - * 0 if @folio is a normal anonymous folio, a tmpfs folio or otherwise - * ram or swap backed folio. + * + * - 1 if @folio is a regular filesystem backed page cache folio + * or a lazily freed anonymous folio (e.g. via MADV_FREE). + * - 0 if @folio is a normal anonymous folio, a tmpfs folio or otherwise + * ram or swap backed folio. */ static inline int folio_is_file_lru(struct folio *folio) {
On Wed, Jul 21, 2021 at 11:39:15AM +0300, Mike Rapoport wrote: > On Wed, Jul 21, 2021 at 05:08:44AM +0100, Matthew Wilcox wrote: > > I wanted to turn those last two sentences into a list, but my > > kernel-doc-fu abandoned me. Feel free to submit a follow-on patch to > > fix that ;-) > > Here it is ;-) Did you try it? Here's what that turns into with htmldoc: Description We would like to get this info without a page flag, but the state needs to survive until the folio is last deleted from the LRU, which could be as far down as __page_cache_release. * 1 if folio is a regular filesystem backed page cache folio or a lazily freed anonymous folio (e.g. via MADV_FREE). * 0 if folio is a normal anonymous folio, a tmpfs folio or otherwise ram or swap backed folio. Return An integer (not a boolean!) used to sort a folio onto the right LRU list and to account folios correctly. Yes, we get a bulleted list, but it's placed in the wrong section! Adding linux-doc for additional insight into this problem. For their reference, here's the input: /** * folio_is_file_lru - Should the folio be on a file LRU or anon LRU? * @folio: The folio to test. * * We would like to get this info without a page flag, but the state * needs to survive until the folio is last deleted from the LRU, which * could be as far down as __page_cache_release. * * Return: An integer (not a boolean!) used to sort a folio onto the * right LRU list and to account folios correctly. * * - 1 if @folio is a regular filesystem backed page cache folio * or a lazily freed anonymous folio (e.g. via MADV_FREE). * - 0 if @folio is a normal anonymous folio, a tmpfs folio or otherwise * ram or swap backed folio. */ static inline int folio_is_file_lru(struct folio *folio)
On Wed, Jul 21, 2021 at 12:23:09PM +0100, Matthew Wilcox wrote: > On Wed, Jul 21, 2021 at 11:39:15AM +0300, Mike Rapoport wrote: > > On Wed, Jul 21, 2021 at 05:08:44AM +0100, Matthew Wilcox wrote: > > > I wanted to turn those last two sentences into a list, but my > > > kernel-doc-fu abandoned me. Feel free to submit a follow-on patch to > > > fix that ;-) > > > > Here it is ;-) > > Did you try it? Here's what that turns into with htmldoc: Yes, but I was so happy to see bullets that I missed the fact they are in the wrong section :( > Description > > We would like to get this info without a page flag, but the state needs > to survive until the folio is last deleted from the LRU, which could be > as far down as __page_cache_release. > > * 1 if folio is a regular filesystem backed page cache folio or a > lazily freed anonymous folio (e.g. via MADV_FREE). > * 0 if folio is a normal anonymous folio, a tmpfs folio or otherwise > ram or swap backed folio. > > Return > > An integer (not a boolean!) used to sort a folio onto the right LRU list > and to account folios correctly. > > Yes, we get a bulleted list, but it's placed in the wrong section! > > Adding linux-doc for additional insight into this problem. > For their reference, here's the input: > > /** > * folio_is_file_lru - Should the folio be on a file LRU or anon LRU? > * @folio: The folio to test. > * > * We would like to get this info without a page flag, but the state > * needs to survive until the folio is last deleted from the LRU, which > * could be as far down as __page_cache_release. > * > * Return: An integer (not a boolean!) used to sort a folio onto the > * right LRU list and to account folios correctly. > * > * - 1 if @folio is a regular filesystem backed page cache folio > * or a lazily freed anonymous folio (e.g. via MADV_FREE). > * - 0 if @folio is a normal anonymous folio, a tmpfs folio or otherwise > * ram or swap backed folio. > */ > static inline int folio_is_file_lru(struct folio *folio) Hmm, there is some contradiction between kernel-doc assumption that anything after a blank line is the default (i.e. Description) section and the sphynx ideas where empty blank lines should be: if ($state == STATE_BODY_WITH_BLANK_LINE && /^\s*\*\s?\S/) { dump_section($file, $section, $contents); $section = $section_default; $new_start_line = $.; $contents = ""; } (from scripts/kernel-doc::process_body())
On 7/15/21 5:34 AM, Matthew Wilcox (Oracle) wrote: > Handle arbitrary-order folios being added to the LRU. By definition, > all pages being added to the LRU were already head or base pages, but > call page_folio() on them anyway to get the type right and avoid the > buried calls to compound_head(). > > Saves 783 bytes of kernel text; no functions grow. > > Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> > Reviewed-by: Yu Zhao <yuzhao@google.com> > Reviewed-by: Christoph Hellwig <hch@lst.de> > Reviewed-by: David Howells <dhowells@redhat.com> > Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Actually looking at the git version, which has also this: static __always_inline void update_lru_size(struct lruvec *lruvec, enum lru_list lru, enum zone_type zid, - int nr_pages) + long nr_pages) { Why now and here? Some of the functions called from update_lru_size() still take int so this looks arbitrary?
On Tue, Aug 10, 2021 at 06:01:16PM +0200, Vlastimil Babka wrote: > Actually looking at the git version, which has also this: > > static __always_inline void update_lru_size(struct lruvec *lruvec, > enum lru_list lru, enum zone_type zid, > - int nr_pages) > + long nr_pages) > { > > Why now and here? Some of the functions called from update_lru_size() > still take int so this looks arbitrary? I'm still a little freaked out about the lack of warning for: void f(long n); void g(unsigned int n) { f(-n); } so I've decided that the count of pages in a folio is always of type long. The actual number is positive, and currently it's between 1 and 1024 (inclusive on both bounds), so it's always going to be representable in an int. Narrowing it doesn't cause a bug, so we don't need to change nr_pages anywhere, but it does no harm to make functions take a long instead of an int (it may even cause slightly better code generation, based on the sample of functions I've looked at). Maybe changing update_lru_size() in this patch is wrong. I can drop it if you like.
On 8/10/21 7:43 PM, Matthew Wilcox wrote: > On Tue, Aug 10, 2021 at 06:01:16PM +0200, Vlastimil Babka wrote: >> Actually looking at the git version, which has also this: >> >> static __always_inline void update_lru_size(struct lruvec *lruvec, >> enum lru_list lru, enum zone_type zid, >> - int nr_pages) >> + long nr_pages) >> { >> >> Why now and here? Some of the functions called from update_lru_size() >> still take int so this looks arbitrary? > > I'm still a little freaked out about the lack of warning for: > > void f(long n); > void g(unsigned int n) { f(-n); } > > so I've decided that the count of pages in a folio is always of type > long. The actual number is positive, and currently it's between 1 and > 1024 (inclusive on both bounds), so it's always going to be > representable in an int. Narrowing it doesn't cause a bug, so we don't > need to change nr_pages anywhere, but it does no harm to make functions > take a long instead of an int (it may even cause slightly better code > generation, based on the sample of functions I've looked at). > > Maybe changing update_lru_size() in this patch is wrong. I can drop it > if you like. It's fine, knowing it wasn't some rebasing error.
diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h index 355ea1ee32bd..ee155d19885e 100644 --- a/include/linux/mm_inline.h +++ b/include/linux/mm_inline.h @@ -6,22 +6,27 @@ #include <linux/swap.h> /** - * page_is_file_lru - should the page be on a file LRU or anon LRU? - * @page: the page to test + * folio_is_file_lru - should the folio be on a file LRU or anon LRU? + * @folio: the folio to test * - * Returns 1 if @page is a regular filesystem backed page cache page or a lazily - * freed anonymous page (e.g. via MADV_FREE). Returns 0 if @page is a normal - * anonymous page, a tmpfs page or otherwise ram or swap backed page. Used by - * functions that manipulate the LRU lists, to sort a page onto the right LRU - * list. + * Returns 1 if @folio is a regular filesystem backed page cache folio + * or a lazily freed anonymous folio (e.g. via MADV_FREE). Returns 0 if + * @folio is a normal anonymous folio, a tmpfs folio or otherwise ram or + * swap backed folio. Used by functions that manipulate the LRU lists, + * to sort a folio onto the right LRU list. * * We would like to get this info without a page flag, but the state - * needs to survive until the page is last deleted from the LRU, which + * needs to survive until the folio is last deleted from the LRU, which * could be as far down as __page_cache_release. */ +static inline int folio_is_file_lru(struct folio *folio) +{ + return !folio_test_swapbacked(folio); +} + static inline int page_is_file_lru(struct page *page) { - return !PageSwapBacked(page); + return folio_is_file_lru(page_folio(page)); } static __always_inline void update_lru_size(struct lruvec *lruvec, @@ -39,69 +44,94 @@ static __always_inline void update_lru_size(struct lruvec *lruvec, } /** - * __clear_page_lru_flags - clear page lru flags before releasing a page - * @page: the page that was on lru and now has a zero reference + * __folio_clear_lru_flags - clear page lru flags before releasing a page + * @folio: The folio that was on lru and now has a zero reference */ -static __always_inline void __clear_page_lru_flags(struct page *page) +static __always_inline void __folio_clear_lru_flags(struct folio *folio) { - VM_BUG_ON_PAGE(!PageLRU(page), page); + VM_BUG_ON_FOLIO(!folio_test_lru(folio), folio); - __ClearPageLRU(page); + __folio_clear_lru(folio); /* this shouldn't happen, so leave the flags to bad_page() */ - if (PageActive(page) && PageUnevictable(page)) + if (folio_test_active(folio) && folio_test_unevictable(folio)) return; - __ClearPageActive(page); - __ClearPageUnevictable(page); + __folio_clear_active(folio); + __folio_clear_unevictable(folio); +} + +static __always_inline void __clear_page_lru_flags(struct page *page) +{ + __folio_clear_lru_flags(page_folio(page)); } /** - * page_lru - which LRU list should a page be on? - * @page: the page to test + * folio_lru_list - which LRU list should a folio be on? + * @folio: the folio to test * - * Returns the LRU list a page should be on, as an index + * Returns the LRU list a folio should be on, as an index * into the array of LRU lists. */ -static __always_inline enum lru_list page_lru(struct page *page) +static __always_inline enum lru_list folio_lru_list(struct folio *folio) { enum lru_list lru; - VM_BUG_ON_PAGE(PageActive(page) && PageUnevictable(page), page); + VM_BUG_ON_FOLIO(folio_test_active(folio) && folio_test_unevictable(folio), folio); - if (PageUnevictable(page)) + if (folio_test_unevictable(folio)) return LRU_UNEVICTABLE; - lru = page_is_file_lru(page) ? LRU_INACTIVE_FILE : LRU_INACTIVE_ANON; - if (PageActive(page)) + lru = folio_is_file_lru(folio) ? LRU_INACTIVE_FILE : LRU_INACTIVE_ANON; + if (folio_test_active(folio)) lru += LRU_ACTIVE; return lru; } +static __always_inline +void lruvec_add_folio(struct lruvec *lruvec, struct folio *folio) +{ + enum lru_list lru = folio_lru_list(folio); + + update_lru_size(lruvec, lru, folio_zonenum(folio), + folio_nr_pages(folio)); + list_add(&folio->lru, &lruvec->lists[lru]); +} + static __always_inline void add_page_to_lru_list(struct page *page, struct lruvec *lruvec) { - enum lru_list lru = page_lru(page); + lruvec_add_folio(lruvec, page_folio(page)); +} + +static __always_inline +void lruvec_add_folio_tail(struct lruvec *lruvec, struct folio *folio) +{ + enum lru_list lru = folio_lru_list(folio); - update_lru_size(lruvec, lru, page_zonenum(page), thp_nr_pages(page)); - list_add(&page->lru, &lruvec->lists[lru]); + update_lru_size(lruvec, lru, folio_zonenum(folio), + folio_nr_pages(folio)); + list_add_tail(&folio->lru, &lruvec->lists[lru]); } static __always_inline void add_page_to_lru_list_tail(struct page *page, struct lruvec *lruvec) { - enum lru_list lru = page_lru(page); + lruvec_add_folio_tail(lruvec, page_folio(page)); +} - update_lru_size(lruvec, lru, page_zonenum(page), thp_nr_pages(page)); - list_add_tail(&page->lru, &lruvec->lists[lru]); +static __always_inline +void lruvec_del_folio(struct lruvec *lruvec, struct folio *folio) +{ + list_del(&folio->lru); + update_lru_size(lruvec, folio_lru_list(folio), folio_zonenum(folio), + -folio_nr_pages(folio)); } static __always_inline void del_page_from_lru_list(struct page *page, struct lruvec *lruvec) { - list_del(&page->lru); - update_lru_size(lruvec, page_lru(page), page_zonenum(page), - -thp_nr_pages(page)); + lruvec_del_folio(lruvec, page_folio(page)); } #endif diff --git a/include/trace/events/pagemap.h b/include/trace/events/pagemap.h index 1d28431e85bd..92ad176210ff 100644 --- a/include/trace/events/pagemap.h +++ b/include/trace/events/pagemap.h @@ -41,7 +41,7 @@ TRACE_EVENT(mm_lru_insertion, TP_fast_assign( __entry->page = page; __entry->pfn = page_to_pfn(page); - __entry->lru = page_lru(page); + __entry->lru = folio_lru_list(page_folio(page)); __entry->flags = trace_pagemap_flags(page); ),