page_isolation: Fix a comment typo in test_pages_isolated()

pageblock_nr_page should be pageblock_nr_pages, and fist is
a typo of first.

Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 4 insertions, 4 deletions

diff --git a/mm/page_isolation.c b/mm/page_isolation.c
index 383bdbb98b04..0cee10ffb98d 100644
--- a/mm/page_isolation.c
+++ b/mm/page_isolation.c
@@ -226,9 +226,9 @@ int test_pages_isolated(unsigned long start_pfn, unsigned long end_pfn,
         int ret;
 
         /*
-         * Note: pageblock_nr_page != MAX_ORDER. Then, chunks of free page
-         * is not aligned to pageblock_nr_pages.
-         * Then we just check pagetype fist.
+         * Note: pageblock_nr_pages != MAX_ORDER. Then, chunks of free pages
+         * are not aligned to pageblock_nr_pages.
+         * Then we just check migratetype first.
          */
         for (pfn = start_pfn; pfn < end_pfn; pfn += pageblock_nr_pages) {
                 page = __first_valid_page(pfn, pageblock_nr_pages);
@@ -238,7 +238,7 @@ int test_pages_isolated(unsigned long start_pfn, unsigned long end_pfn,
         page = __first_valid_page(start_pfn, end_pfn - start_pfn);
         if ((pfn < end_pfn) || !page)
                 return -EBUSY;
-        /* Check all pages are free or Marked as ISOLATED */
+        /* Check all pages are free or marked as ISOLATED */
         zone = page_zone(page);
         spin_lock_irqsave(&zone->lock, flags);
         ret = __test_page_isolated_in_pageblock(start_pfn, end_pfn,