mm/page_io.c: replace some BUG_ON()s with VM_BUG_ON_PAGE()

[cascardo/linux.git] / mm / hwpoison-inject.c

diff --git a/mm/hwpoison-inject.c b/mm/hwpoison-inject.c
index aeba0ed..9d26fd9 100644 (file)
--- a/mm/hwpoison-inject.c
+++ b/mm/hwpoison-inject.c
@@ -45,12 +45,9 @@ static int hwpoison_inject(void *data, u64 val)
        /*
         * do a racy check with elevated page count, to make sure PG_hwpoison
         * will only be set for the targeted owner (or on a free page).
-        * We temporarily take page lock for try_get_mem_cgroup_from_page().
         * memory_failure() will redo the check reliably inside page lock.
         */
-       lock_page(hpage);
        err = hwpoison_filter(hpage);
-       unlock_page(hpage);
        if (err)
                goto put_out;
 
@@ -126,7 +123,7 @@ static int pfn_inject_init(void)
        if (!dentry)
                goto fail;
 
-#ifdef CONFIG_MEMCG_SWAP
+#ifdef CONFIG_MEMCG
        dentry = debugfs_create_u64("corrupt-filter-memcg", 0600,
                                    hwpoison_dir, &hwpoison_filter_memcg);
        if (!dentry)