1 files changed, 25 insertions, 1 deletions

diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 93628b02ef5d..875c11443817 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -614,6 +614,27 @@ static void ocfs2_dio_end_io(struct kiocb *iocb,
         ocfs2_rw_unlock(inode, 0);
 }
 
+/*
+ * ocfs2_invalidatepage() and ocfs2_releasepage() are shamelessly stolen
+ * from ext3.  PageChecked() bits have been removed as OCFS2 does not
+ * do journalled data.
+ */
+static void ocfs2_invalidatepage(struct page *page, unsigned long offset)
+{
+        journal_t *journal = OCFS2_SB(page->mapping->host->i_sb)->journal->j_journal;
+
+        journal_invalidatepage(journal, page, offset);
+}
+
+static int ocfs2_releasepage(struct page *page, gfp_t wait)
+{
+        journal_t *journal = OCFS2_SB(page->mapping->host->i_sb)->journal->j_journal;
+
+        if (!page_has_buffers(page))
+                return 0;
+        return journal_try_to_free_buffers(journal, page, wait);
+}
+
 static ssize_t ocfs2_direct_IO(int rw,
                                struct kiocb *iocb,
                                const struct iovec *iov,
@@ -661,5 +682,8 @@ const struct address_space_operations ocfs2_aops = {
         .commit_write   = ocfs2_commit_write,
         .bmap           = ocfs2_bmap,
         .sync_page      = block_sync_page,
-        .direct_IO      = ocfs2_direct_IO
+        .direct_IO      = ocfs2_direct_IO,
+        .invalidatepage = ocfs2_invalidatepage,
+        .releasepage    = ocfs2_releasepage,
+        .migratepage    = buffer_migrate_page,
 };