2 files changed, 8 insertions, 21 deletions

diff --git a/fs/proc/base.c b/fs/proc/base.c
index 7621db800a74..8418fcc0a6ab 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -2909,7 +2909,7 @@ out_no_task:
  */
 static const struct pid_entry tid_base_stuff[] = {
         DIR("fd",        S_IRUSR|S_IXUSR, proc_fd_inode_operations, proc_fd_operations),
-        DIR("fdinfo",    S_IRUSR|S_IXUSR, proc_fdinfo_inode_operations, proc_fd_operations),
+        DIR("fdinfo",    S_IRUSR|S_IXUSR, proc_fdinfo_inode_operations, proc_fdinfo_operations),
         REG("environ",   S_IRUSR, proc_environ_operations),
         INF("auxv",      S_IRUSR, proc_pid_auxv),
         ONE("status",    S_IRUGO, proc_pid_status),
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index a05a669510a4..070553427dd5 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -662,31 +662,18 @@ static u64 huge_pte_to_pagemap_entry(pte_t pte, int offset)
         return pme;
 }
 
-static int pagemap_hugetlb_range(pte_t *pte, unsigned long addr,
-                                 unsigned long end, struct mm_walk *walk)
+/* This function walks within one hugetlb entry in the single call */
+static int pagemap_hugetlb_range(pte_t *pte, unsigned long hmask,
+                                 unsigned long addr, unsigned long end,
+                                 struct mm_walk *walk)
 {
-        struct vm_area_struct *vma;
         struct pagemapread *pm = walk->private;
-        struct hstate *hs = NULL;
         int err = 0;
+        u64 pfn;
 
-        vma = find_vma(walk->mm, addr);
-        if (vma)
-                hs = hstate_vma(vma);
         for (; addr != end; addr += PAGE_SIZE) {
-                u64 pfn = PM_NOT_PRESENT;
-
-                if (vma && (addr >= vma->vm_end)) {
-                        vma = find_vma(walk->mm, addr);
-                        if (vma)
-                                hs = hstate_vma(vma);
-                }
-
-                if (vma && (vma->vm_start <= addr) && is_vm_hugetlb_page(vma)) {
-                        /* calculate pfn of the "raw" page in the hugepage. */
-                        int offset = (addr & ~huge_page_mask(hs)) >> PAGE_SHIFT;
-                        pfn = huge_pte_to_pagemap_entry(*pte, offset);
-                }
+                int offset = (addr & ~hmask) >> PAGE_SHIFT;
+                pfn = huge_pte_to_pagemap_entry(*pte, offset);
                 err = add_to_pagemap(addr, pfn, pm);
                 if (err)
                         return err;