The patch titled Subject: page-flags: define PG_uptodate behavior on compound pages has been removed from the -mm tree. Its filename was page-flags-define-pg_uptodate-behavior-on-compound-pages.patch This patch was dropped because an updated version will be merged ------------------------------------------------------ From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx> Subject: page-flags: define PG_uptodate behavior on compound pages We use PG_uptodate on head pages on transparent huge page. Let's use NO_TAIL. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx> Cc: Hugh Dickins <hughd@xxxxxxxxxx> Cc: Dave Hansen <dave.hansen@xxxxxxxxx> Cc: Mel Gorman <mgorman@xxxxxxx> Cc: Rik van Riel <riel@xxxxxxxxxx> Cc: Vlastimil Babka <vbabka@xxxxxxx> Cc: Christoph Lameter <cl@xxxxxxxxx> Cc: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> Cc: Steve Capper <steve.capper@xxxxxxxxxx> Cc: "Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxxxxxxxxxx> Cc: Johannes Weiner <hannes@xxxxxxxxxxx> Cc: Michal Hocko <mhocko@xxxxxxx> Cc: Jerome Marchand <jmarchan@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/page-flags.h | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff -puN include/linux/page-flags.h~page-flags-define-pg_uptodate-behavior-on-compound-pages include/linux/page-flags.h --- a/include/linux/page-flags.h~page-flags-define-pg_uptodate-behavior-on-compound-pages +++ a/include/linux/page-flags.h @@ -375,8 +375,9 @@ u64 stable_page_flags(struct page *page) static inline int PageUptodate(struct page *page) { - int ret = test_bit(PG_uptodate, &(page)->flags); - + int ret; + page = compound_head(page); + ret = test_bit(PG_uptodate, &(page)->flags); /* * Must ensure that the data we read out of the page is loaded * _after_ we've loaded page->flags to check for PageUptodate. @@ -393,12 +394,14 @@ static inline int PageUptodate(struct pa static inline void __SetPageUptodate(struct page *page) { + VM_BUG_ON_PAGE(PageTail(page), page); smp_wmb(); __set_bit(PG_uptodate, &page->flags); } static inline void SetPageUptodate(struct page *page) { + VM_BUG_ON_PAGE(PageTail(page), page); /* * Memory barrier must be issued before setting the PG_uptodate bit, * so that all previous stores issued in order to bring the page @@ -408,7 +411,7 @@ static inline void SetPageUptodate(struc set_bit(PG_uptodate, &page->flags); } -CLEARPAGEFLAG(Uptodate, uptodate, ANY) +CLEARPAGEFLAG(Uptodate, uptodate, NO_TAIL) int test_clear_page_writeback(struct page *page); int __test_set_page_writeback(struct page *page, bool keep_write); _ Patches currently in -mm which might be from kirill.shutemov@xxxxxxxxxxxxxxx are rcu-force-alignment-on-struct-callback_head-rcu_head.patch mm-make-optimistic-check-for-swapin-readahead-fix.patch mm-make-swapin-readahead-to-improve-thp-collapse-rate-fix.patch mm-make-swapin-readahead-to-improve-thp-collapse-rate-fix-2.patch mm-make-swapin-readahead-to-improve-thp-collapse-rate-fix-3.patch mm-drop-page-slab_page.patch slab-slub-use-page-rcu_head-instead-of-page-lru-plus-cast.patch zsmalloc-use-page-private-instead-of-page-first_page.patch mm-pack-compound_dtor-and-compound_order-into-one-word-in-struct-page.patch mm-make-compound_head-robust.patch mm-use-unsigned-int-for-page-order.patch mm-use-unsigned-int-for-compound_dtor-compound_order-on-64bit.patch page-flags-look-on-head-page-if-the-flag-is-encoded-in-page-mapping.patch mm-sanitize-page-mapping-for-tail-pages.patch mm-support-madvisemadv_free-fix-3.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html