ocfs2: multi node truncate fix

Fix ocfs2_truncate_file() so that it forces a truncate_inode_pages() on all
interested nodes in all cases of a truncate(), not just allocation change.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 34e903a..581eb45 100644 (file)
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -260,6 +260,17 @@ static int ocfs2_truncate_file(struct inode *inode,
        if (new_i_size == le64_to_cpu(fe->i_size))
                goto bail;
 
+       /* This forces other nodes to sync and drop their pages. Do
+        * this even if we have a truncate without allocation change -
+        * ocfs2 cluster sizes can be much greater than page size, so
+        * we have to truncate them anyway.  */
+       status = ocfs2_data_lock(inode, 1);
+       if (status < 0) {
+               mlog_errno(status);
+               goto bail;
+       }
+       ocfs2_data_unlock(inode, 1);
+
        if (le32_to_cpu(fe->i_clusters) ==
            ocfs2_clusters_for_bytes(osb->sb, new_i_size)) {
                mlog(0, "fe->i_clusters = %u, so we do a simple truncate\n",
@@ -272,14 +283,6 @@ static int ocfs2_truncate_file(struct inode *inode,
                goto bail;
        }
 
-       /* This forces other nodes to sync and drop their pages */
-       status = ocfs2_data_lock(inode, 1);
-       if (status < 0) {
-               mlog_errno(status);
-               goto bail;
-       }
-       ocfs2_data_unlock(inode, 1);
-
        /* alright, we're going to need to do a full blown alloc size
         * change. Orphan the inode so that recovery can complete the
         * truncate if necessary. This does the task of marking