arm: gemini: Use proper irq accessor functions

[cascardo/linux.git] / mm / memory-failure.c

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 0207c2f..37feb9f 100644 (file)
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -945,7 +945,7 @@ static int hwpoison_user_mappings(struct page *p, unsigned long pfn,
                collect_procs(ppage, &tokill);
 
        if (hpage != ppage)
-               lock_page_nosync(ppage);
+               lock_page(ppage);
 
        ret = try_to_unmap(ppage, ttu);
        if (ret != SWAP_SUCCESS)
@@ -1038,7 +1038,7 @@ int __memory_failure(unsigned long pfn, int trapno, int flags)
                         * Check "just unpoisoned", "filter hit", and
                         * "race with other subpage."
                         */
-                       lock_page_nosync(hpage);
+                       lock_page(hpage);
                        if (!PageHWPoison(hpage)
                            || (hwpoison_filter(p) && TestClearPageHWPoison(p))
                            || (p != hpage && TestSetPageHWPoison(hpage))) {
@@ -1088,7 +1088,7 @@ int __memory_failure(unsigned long pfn, int trapno, int flags)
         * It's very difficult to mess with pages currently under IO
         * and in many cases impossible, so we just avoid it here.
         */
-       lock_page_nosync(hpage);
+       lock_page(hpage);
 
        /*
         * unpoison always clear PG_hwpoison inside page lock
@@ -1130,7 +1130,7 @@ int __memory_failure(unsigned long pfn, int trapno, int flags)
 
        /*
         * Now take care of user space mappings.
-        * Abort on fail: __remove_from_page_cache() assumes unmapped page.
+        * Abort on fail: __delete_from_page_cache() assumes unmapped page.
         */
        if (hwpoison_user_mappings(p, pfn, trapno) != SWAP_SUCCESS) {
                printk(KERN_ERR "MCE %#lx: cannot unmap page, give up\n", pfn);
@@ -1231,7 +1231,7 @@ int unpoison_memory(unsigned long pfn)
                return 0;
        }
 
-       lock_page_nosync(page);
+       lock_page(page);
        /*
         * This test is racy because PG_hwpoison is set outside of page lock.
         * That's acceptable because that won't trigger kernel panic. Instead,
@@ -1487,35 +1487,3 @@ done:
        /* keep elevated page count for bad page */
        return ret;
 }
-
-/*
- * The caller must hold current->mm->mmap_sem in read mode.
- */
-int is_hwpoison_address(unsigned long addr)
-{
-       pgd_t *pgdp;
-       pud_t pud, *pudp;
-       pmd_t pmd, *pmdp;
-       pte_t pte, *ptep;
-       swp_entry_t entry;
-
-       pgdp = pgd_offset(current->mm, addr);
-       if (!pgd_present(*pgdp))
-               return 0;
-       pudp = pud_offset(pgdp, addr);
-       pud = *pudp;
-       if (!pud_present(pud) || pud_large(pud))
-               return 0;
-       pmdp = pmd_offset(pudp, addr);
-       pmd = *pmdp;
-       if (!pmd_present(pmd) || pmd_large(pmd))
-               return 0;
-       ptep = pte_offset_map(pmdp, addr);
-       pte = *ptep;
-       pte_unmap(ptep);
-       if (!is_swap_pte(pte))
-               return 0;
-       entry = pte_to_swp_entry(pte);
-       return is_hwpoison_entry(entry);
-}
-EXPORT_SYMBOL_GPL(is_hwpoison_address);