diff --git a/[refs] b/[refs] index f5cad395d8ca..c5392d40938a 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: c44ed965be7a84afaa07543c04eb97a5dfe93422 +refs/heads/master: 2fbfac4e053861925fa3fffcdc327649b09af54c diff --git a/trunk/mm/huge_memory.c b/trunk/mm/huge_memory.c index dbe99a5f2073..113e35c47502 100644 --- a/trunk/mm/huge_memory.c +++ b/trunk/mm/huge_memory.c @@ -1762,6 +1762,10 @@ static void collapse_huge_page(struct mm_struct *mm, #ifndef CONFIG_NUMA VM_BUG_ON(!*hpage); new_page = *hpage; + if (unlikely(mem_cgroup_newpage_charge(new_page, mm, GFP_KERNEL))) { + up_read(&mm->mmap_sem); + return; + } #else VM_BUG_ON(*hpage); /* @@ -1781,12 +1785,12 @@ static void collapse_huge_page(struct mm_struct *mm, *hpage = ERR_PTR(-ENOMEM); return; } -#endif if (unlikely(mem_cgroup_newpage_charge(new_page, mm, GFP_KERNEL))) { up_read(&mm->mmap_sem); put_page(new_page); return; } +#endif /* after allocating the hugepage upgrade to mmap_sem write mode */ up_read(&mm->mmap_sem);