The patch titled Subject: mm: fontswap: thp fix has been removed from the -mm tree. Its filename was fontswap-thp-fix.patch This patch was dropped because an updated version will be merged ------------------------------------------------------ From: Huang Ying <huang.ying.caritas@xxxxxxxxx> Subject: mm: fontswap: thp fix Link: http://lkml.kernel.org/r/87d11j4pdy.fsf@xxxxxxxxxxxxxxxxxxxx Fixes: bd4c82c22c367e068 ("mm, THP, swap: delay splitting THP after swapped out") Reported-by: Sergey Senozhatsky <sergey.senozhatsky.work@xxxxxxxxx> Tested-by: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx> Cc: Michal Hocko <mhocko@xxxxxxxxxx> Cc: Vlastimil Babka <vbabka@xxxxxxx> Cc: Minchan Kim <minchan@xxxxxxxxxx> Cc: Seth Jennings <sjenning@xxxxxxxxxx> Cc: Dan Streetman <ddstreet@xxxxxxxx> Cc: "Kirill A . Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/page_io.c | 2 +- mm/vmscan.c | 16 +++++++++++++--- 2 files changed, 14 insertions(+), 4 deletions(-) diff -puN mm/page_io.c~fontswap-thp-fix mm/page_io.c --- a/mm/page_io.c~fontswap-thp-fix +++ a/mm/page_io.c @@ -250,7 +250,7 @@ int swap_writepage(struct page *page, st unlock_page(page); goto out; } - if (frontswap_store(page) == 0) { + if (!PageTransHuge(page) && frontswap_store(page) == 0) { set_page_writeback(page); unlock_page(page); end_page_writeback(page); diff -puN mm/vmscan.c~fontswap-thp-fix mm/vmscan.c --- a/mm/vmscan.c~fontswap-thp-fix +++ a/mm/vmscan.c @@ -55,6 +55,7 @@ #include <linux/swapops.h> #include <linux/balloon_compaction.h> +#include <linux/frontswap.h> #include "internal.h" @@ -1121,13 +1122,22 @@ static unsigned long shrink_page_list(st if (!can_split_huge_page(page, NULL)) goto activate_locked; /* + * Split THP if frontswap enabled, + * because it cannot process THP + */ + if (frontswap_enabled()) { + if (split_huge_page_to_list( + page, page_list)) + goto activate_locked; + } + /* * Split pages without a PMD map right * away. Chances are some or all of the * tail pages can be freed without IO. */ - if (!compound_mapcount(page) && - split_huge_page_to_list(page, - page_list)) + else if (!compound_mapcount(page) && + split_huge_page_to_list(page, + page_list)) goto activate_locked; } if (!add_to_swap(page)) { _ Patches currently in -mm which might be from huang.ying.caritas@xxxxxxxxx are mm-swap-frontswap-fix-thp-swap-if-frontswap-enabled.patch