The patch titled thp: memcg huge memory has been removed from the -mm tree. Its filename was thp-memcg-huge-memory.patch This patch was dropped because it was merged into mainline or a subsystem tree The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: thp: memcg huge memory From: Andrea Arcangeli <aarcange@xxxxxxxxxx> Add memcg charge/uncharge to hugepage faults in huge_memory.c. Signed-off-by: Andrea Arcangeli <aarcange@xxxxxxxxxx> Acked-by: Rik van Riel <riel@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/huge_memory.c | 36 +++++++++++++++++++++++++++++++----- 1 file changed, 31 insertions(+), 5 deletions(-) diff -puN mm/huge_memory.c~thp-memcg-huge-memory mm/huge_memory.c --- a/mm/huge_memory.c~thp-memcg-huge-memory +++ a/mm/huge_memory.c @@ -233,6 +233,7 @@ static int __do_huge_pmd_anonymous_page( VM_BUG_ON(!PageCompound(page)); pgtable = pte_alloc_one(mm, haddr); if (unlikely(!pgtable)) { + mem_cgroup_uncharge_page(page); put_page(page); return VM_FAULT_OOM; } @@ -243,6 +244,7 @@ static int __do_huge_pmd_anonymous_page( spin_lock(&mm->page_table_lock); if (unlikely(!pmd_none(*pmd))) { spin_unlock(&mm->page_table_lock); + mem_cgroup_uncharge_page(page); put_page(page); pte_free(mm, pgtable); } else { @@ -286,6 +288,10 @@ int do_huge_pmd_anonymous_page(struct mm page = alloc_hugepage(transparent_hugepage_defrag(vma)); if (unlikely(!page)) goto out; + if (unlikely(mem_cgroup_newpage_charge(page, mm, GFP_KERNEL))) { + put_page(page); + goto out; + } return __do_huge_pmd_anonymous_page(mm, vma, haddr, pmd, page); } @@ -402,9 +408,17 @@ static int do_huge_pmd_wp_page_fallback( for (i = 0; i < HPAGE_PMD_NR; i++) { pages[i] = alloc_page_vma(GFP_HIGHUSER_MOVABLE, vma, address); - if (unlikely(!pages[i])) { - while (--i >= 0) + if (unlikely(!pages[i] || + mem_cgroup_newpage_charge(pages[i], mm, + GFP_KERNEL))) { + if (pages[i]) put_page(pages[i]); + mem_cgroup_uncharge_start(); + while (--i >= 0) { + mem_cgroup_uncharge_page(pages[i]); + put_page(pages[i]); + } + mem_cgroup_uncharge_end(); kfree(pages); ret |= VM_FAULT_OOM; goto out; @@ -455,8 +469,12 @@ out: out_free_pages: spin_unlock(&mm->page_table_lock); - for (i = 0; i < HPAGE_PMD_NR; i++) + mem_cgroup_uncharge_start(); + for (i = 0; i < HPAGE_PMD_NR; i++) { + mem_cgroup_uncharge_page(pages[i]); put_page(pages[i]); + } + mem_cgroup_uncharge_end(); kfree(pages); goto out; } @@ -501,14 +519,22 @@ int do_huge_pmd_wp_page(struct mm_struct goto out; } + if (unlikely(mem_cgroup_newpage_charge(new_page, mm, GFP_KERNEL))) { + put_page(new_page); + put_page(page); + ret |= VM_FAULT_OOM; + goto out; + } + copy_user_huge_page(new_page, page, haddr, vma, HPAGE_PMD_NR); __SetPageUptodate(new_page); spin_lock(&mm->page_table_lock); put_page(page); - if (unlikely(!pmd_same(*pmd, orig_pmd))) + if (unlikely(!pmd_same(*pmd, orig_pmd))) { + mem_cgroup_uncharge_page(new_page); put_page(new_page); - else { + } else { pmd_t entry; VM_BUG_ON(!PageHead(page)); entry = mk_pmd(new_page, vma->vm_page_prot); _ Patches currently in -mm which might be from aarcange@xxxxxxxxxx are origin.patch thp-add-pagetranscompound.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