diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/bootmem.c | 5 | ||||
| -rw-r--r-- | mm/memcontrol.c | 4 | ||||
| -rw-r--r-- | mm/memory.c | 16 | ||||
| -rw-r--r-- | mm/mempolicy.c | 2 | ||||
| -rw-r--r-- | mm/mincore.c | 2 | ||||
| -rw-r--r-- | mm/pagewalk.c | 2 | ||||
| -rw-r--r-- | mm/slub.c | 3 | ||||
| -rw-r--r-- | mm/sparse.c | 30 | ||||
| -rw-r--r-- | mm/swapfile.c | 4 |
9 files changed, 35 insertions, 33 deletions
diff --git a/mm/bootmem.c b/mm/bootmem.c index 1a77012ecdb3..b8638224c5dd 100644 --- a/mm/bootmem.c +++ b/mm/bootmem.c @@ -768,14 +768,13 @@ void * __init alloc_bootmem_section(unsigned long size, unsigned long section_nr) { bootmem_data_t *bdata; - unsigned long pfn, goal, limit; + unsigned long pfn, goal; pfn = section_nr_to_pfn(section_nr); goal = pfn << PAGE_SHIFT; - limit = section_nr_to_pfn(section_nr + 1) << PAGE_SHIFT; bdata = &bootmem_node_data[early_pfn_to_nid(pfn)]; - return alloc_bootmem_core(bdata, size, SMP_CACHE_BYTES, goal, limit); + return alloc_bootmem_core(bdata, size, SMP_CACHE_BYTES, goal, 0); } #endif diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 3e1f6a0d49e6..abf5497cadcb 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -5234,6 +5234,8 @@ static int mem_cgroup_count_precharge_pte_range(pmd_t *pmd, spinlock_t *ptl; split_huge_page_pmd(walk->mm, pmd); + if (pmd_trans_unstable(pmd)) + return 0; pte = pte_offset_map_lock(vma->vm_mm, pmd, addr, &ptl); for (; addr != end; pte++, addr += PAGE_SIZE) @@ -5395,6 +5397,8 @@ static int mem_cgroup_move_charge_pte_range(pmd_t *pmd, spinlock_t *ptl; split_huge_page_pmd(walk->mm, pmd); + if (pmd_trans_unstable(pmd)) + return 0; retry: pte = pte_offset_map_lock(vma->vm_mm, pmd, addr, &ptl); for (; addr != end; addr += PAGE_SIZE) { diff --git a/mm/memory.c b/mm/memory.c index 61744e9432cf..a3ae5e7b0bfc 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1228,16 +1228,24 @@ static inline unsigned long zap_pmd_range(struct mmu_gather *tlb, do { next = pmd_addr_end(addr, end); if (pmd_trans_huge(*pmd)) { - if (next-addr != HPAGE_PMD_SIZE) { + if (next - addr != HPAGE_PMD_SIZE) { VM_BUG_ON(!rwsem_is_locked(&tlb->mm->mmap_sem)); split_huge_page_pmd(vma->vm_mm, pmd); } else if (zap_huge_pmd(tlb, vma, pmd)) - continue; + goto next; /* fall through */ } - if (pmd_none_or_clear_bad(pmd)) - continue; + /* + * Here there can be other concurrent MADV_DONTNEED or + * trans huge page faults running, and if the pmd is + * none or trans huge it can change under us. This is + * because MADV_DONTNEED holds the mmap_sem in read + * mode. + */ + if (pmd_none_or_trans_huge_or_clear_bad(pmd)) + goto next; next = zap_pte_range(tlb, vma, pmd, addr, next, details); +next: cond_resched(); } while (pmd++, addr = next, addr != end); diff --git a/mm/mempolicy.c b/mm/mempolicy.c index c3fdbcb17658..b26aae28d9d9 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -512,7 +512,7 @@ static inline int check_pmd_range(struct vm_area_struct *vma, pud_t *pud, do { next = pmd_addr_end(addr, end); split_huge_page_pmd(vma->vm_mm, pmd); - if (pmd_none_or_clear_bad(pmd)) + if (pmd_none_or_trans_huge_or_clear_bad(pmd)) continue; if (check_pte_range(vma, pmd, addr, next, nodes, flags, private)) diff --git a/mm/mincore.c b/mm/mincore.c index 636a86876ff2..936b4cee8cb1 100644 --- a/mm/mincore.c +++ b/mm/mincore.c @@ -164,7 +164,7 @@ static void mincore_pmd_range(struct vm_area_struct *vma, pud_t *pud, } /* fall through */ } - if (pmd_none_or_clear_bad(pmd)) + if (pmd_none_or_trans_huge_or_clear_bad(pmd)) mincore_unmapped_range(vma, addr, next, vec); else mincore_pte_range(vma, pmd, addr, next, vec); diff --git a/mm/pagewalk.c b/mm/pagewalk.c index 2f5cf10ff660..aa9701e12714 100644 --- a/mm/pagewalk.c +++ b/mm/pagewalk.c @@ -59,7 +59,7 @@ again: continue; split_huge_page_pmd(walk->mm, pmd); - if (pmd_none_or_clear_bad(pmd)) + if (pmd_none_or_trans_huge_or_clear_bad(pmd)) goto again; err = walk_pte_range(pmd, addr, next, walk); if (err) diff --git a/mm/slub.c b/mm/slub.c index 1a919f0150f5..a99c785828c6 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -3911,13 +3911,14 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size, if (kmem_cache_open(s, n, size, align, flags, ctor)) { list_add(&s->list, &slab_caches); + up_write(&slub_lock); if (sysfs_slab_add(s)) { + down_write(&slub_lock); list_del(&s->list); kfree(n); kfree(s); goto err; } - up_write(&slub_lock); return s; } kfree(n); diff --git a/mm/sparse.c b/mm/sparse.c index 61d7cde23111..a8bc7d364deb 100644 --- a/mm/sparse.c +++ b/mm/sparse.c @@ -353,29 +353,21 @@ static void __init sparse_early_usemaps_alloc_node(unsigned long**usemap_map, usemap = sparse_early_usemaps_alloc_pgdat_section(NODE_DATA(nodeid), usemap_count); - if (usemap) { - for (pnum = pnum_begin; pnum < pnum_end; pnum++) { - if (!present_section_nr(pnum)) - continue; - usemap_map[pnum] = usemap; - usemap += size; + if (!usemap) { + usemap = alloc_bootmem_node(NODE_DATA(nodeid), size * usemap_count); + if (!usemap) { + printk(KERN_WARNING "%s: allocation failed\n", __func__); + return; } - return; } - usemap = alloc_bootmem_node(NODE_DATA(nodeid), size * usemap_count); - if (usemap) { - for (pnum = pnum_begin; pnum < pnum_end; pnum++) { - if (!present_section_nr(pnum)) - continue; - usemap_map[pnum] = usemap; - usemap += size; - check_usemap_section_nr(nodeid, usemap_map[pnum]); - } - return; + for (pnum = pnum_begin; pnum < pnum_end; pnum++) { + if (!present_section_nr(pnum)) + continue; + usemap_map[pnum] = usemap; + usemap += size; + check_usemap_section_nr(nodeid, usemap_map[pnum]); } - - printk(KERN_WARNING "%s: allocation failed\n", __func__); } #ifndef CONFIG_SPARSEMEM_VMEMMAP diff --git a/mm/swapfile.c b/mm/swapfile.c index b1cd12060723..2015a1e42dc0 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -931,9 +931,7 @@ static inline int unuse_pmd_range(struct vm_area_struct *vma, pud_t *pud, pmd = pmd_offset(pud, addr); do { next = pmd_addr_end(addr, end); - if (unlikely(pmd_trans_huge(*pmd))) - continue; - if (pmd_none_or_clear_bad(pmd)) + if (pmd_none_or_trans_huge_or_clear_bad(pmd)) continue; ret = unuse_pte_range(vma, pmd, addr, next, entry, page); if (ret) |