Subject: + mm-proc-pid-pagemap-inspect-_page_soft_dirty-only-on-present-pages.patch added to -mm tree To: gorcunov@xxxxxxxxx,aneesh.kumar@xxxxxxxxxxxxxxxxxx,gorcunov@xxxxxxxxxx,kosaki.motohiro@xxxxxxxxx,luto@xxxxxxxxxxxxxx,mel@xxxxxxxxx,mpm@xxxxxxxxxxx,mtosatti@xxxxxxxxxx,n-horiguchi@xxxxxxxxxxxxx,peterz@xxxxxxxxxxxxx,sfr@xxxxxxxxxxxxxxxx,xemul@xxxxxxxxxxxxx,xiaoguangrong@xxxxxxxxxxxxxxxxxx From: akpm@xxxxxxxxxxxxxxxxxxxx Date: Tue, 08 Oct 2013 12:48:04 -0700 The patch titled Subject: mm: /proc/pid/pagemap: inspect _PAGE_SOFT_DIRTY only on present pages has been added to the -mm tree. Its filename is mm-proc-pid-pagemap-inspect-_page_soft_dirty-only-on-present-pages.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/mm-proc-pid-pagemap-inspect-_page_soft_dirty-only-on-present-pages.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/mm-proc-pid-pagemap-inspect-_page_soft_dirty-only-on-present-pages.patch 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/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Cyrill Gorcunov <gorcunov@xxxxxxxxx> Subject: mm: /proc/pid/pagemap: inspect _PAGE_SOFT_DIRTY only on present pages If a page we are inspecting is in swap we may occasionally report it as having soft dirty bit (even if it is clean). The pte_soft_dirty helper should be called on present pte only. Signed-off-by: Cyrill Gorcunov <gorcunov@xxxxxxxxxx> Cc: Pavel Emelyanov <xemul@xxxxxxxxxxxxx> Cc: Andy Lutomirski <luto@xxxxxxxxxxxxxx> Cc: Matt Mackall <mpm@xxxxxxxxxxx> Cc: Xiao Guangrong <xiaoguangrong@xxxxxxxxxxxxxxxxxx> Cc: Marcelo Tosatti <mtosatti@xxxxxxxxxx> Cc: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxx> Cc: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: "Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxxxxxxxxxx> Reviewed-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> Cc: Mel Gorman <mel@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- fs/proc/task_mmu.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff -puN fs/proc/task_mmu.c~mm-proc-pid-pagemap-inspect-_page_soft_dirty-only-on-present-pages fs/proc/task_mmu.c --- a/fs/proc/task_mmu.c~mm-proc-pid-pagemap-inspect-_page_soft_dirty-only-on-present-pages +++ a/fs/proc/task_mmu.c @@ -941,6 +941,8 @@ static void pte_to_pagemap_entry(pagemap frame = pte_pfn(pte); flags = PM_PRESENT; page = vm_normal_page(vma, addr, pte); + if (pte_soft_dirty(pte)) + flags2 |= __PM_SOFT_DIRTY; } else if (is_swap_pte(pte)) { swp_entry_t entry; if (pte_swp_soft_dirty(pte)) @@ -960,7 +962,7 @@ static void pte_to_pagemap_entry(pagemap if (page && !PageAnon(page)) flags |= PM_FILE; - if ((vma->vm_flags & VM_SOFTDIRTY) || pte_soft_dirty(pte)) + if ((vma->vm_flags & VM_SOFTDIRTY)) flags2 |= __PM_SOFT_DIRTY; *pme = make_pme(PM_PFRAME(frame) | PM_STATUS2(pm->v2, flags2) | flags); _ Patches currently in -mm which might be from gorcunov@xxxxxxxxx are mm-migration-do-not-lose-soft-dirty-bit-if-page-is-in-migration-state.patch mm-proc-pid-pagemap-inspect-_page_soft_dirty-only-on-present-pages.patch arch-x86-mnify-pte_to_pgoff-and-pgoff_to_pte-helpers.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