[MIPS] TX49XX has prefetch.

[firefly-linux-kernel-4.4.55.git] / fs / ext3 / inode.c

diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index 8824e84f8a56a58b8f0aee6ac99cbc9307038565..0384e539b88f47a18c32c0b6dce63c8f0e4558e0 100644 (file)
--- a/fs/ext3/inode.c
+++ b/fs/ext3/inode.c
@@ -1559,6 +1559,7 @@ static struct address_space_operations ext3_ordered_aops = {
        .invalidatepage = ext3_invalidatepage,
        .releasepage    = ext3_releasepage,
        .direct_IO      = ext3_direct_IO,
+       .migratepage    = buffer_migrate_page,
 };
 
 static struct address_space_operations ext3_writeback_aops = {
@@ -1572,6 +1573,7 @@ static struct address_space_operations ext3_writeback_aops = {
        .invalidatepage = ext3_invalidatepage,
        .releasepage    = ext3_releasepage,
        .direct_IO      = ext3_direct_IO,
+       .migratepage    = buffer_migrate_page,
 };
 
 static struct address_space_operations ext3_journalled_aops = {
@@ -1622,15 +1624,14 @@ static int ext3_block_truncate_page(handle_t *handle, struct page *page,
         * For "nobh" option,  we can only work if we don't need to
         * read-in the page - otherwise we create buffers to do the IO.
         */
-       if (!page_has_buffers(page) && test_opt(inode->i_sb, NOBH)) {
-               if (PageUptodate(page)) {
-                       kaddr = kmap_atomic(page, KM_USER0);
-                       memset(kaddr + offset, 0, length);
-                       flush_dcache_page(page);
-                       kunmap_atomic(kaddr, KM_USER0);
-                       set_page_dirty(page);
-                       goto unlock;
-               }
+       if (!page_has_buffers(page) && test_opt(inode->i_sb, NOBH) &&
+            ext3_should_writeback_data(inode) && PageUptodate(page)) {
+               kaddr = kmap_atomic(page, KM_USER0);
+               memset(kaddr + offset, 0, length);
+               flush_dcache_page(page);
+               kunmap_atomic(kaddr, KM_USER0);
+               set_page_dirty(page);
+               goto unlock;
        }
 
        if (!page_has_buffers(page))