From: Mark Fasheh <mark.fasheh@oracle.com>
Date: Thu, 1 Mar 2007 19:22:19 +0000 (-0800)
Subject: ocfs2: Use do_sync_mapping_range() in ocfs2_zero_tail_for_truncate()
X-Git-Tag: v2.6.22-rc1~1124^2~7
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=fa41045fcbf78269991d5aebb1820fc51534f05d;p=karo-tx-linux.git

ocfs2: Use do_sync_mapping_range() in ocfs2_zero_tail_for_truncate()

Do this instead of filemap_fdatawrite() - this way we sync only the
range between i_size and the cluster boundary.

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

diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index 98694a1add43..027cf5d05ffb 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -3517,6 +3517,7 @@ int ocfs2_zero_tail_for_truncate(struct inode *inode, handle_t *handle,
 				 u64 new_i_size)
 {
 	int ret, numpages;
+	loff_t endbyte;
 	struct page **pages = NULL;
 	u64 phys;
 
@@ -3555,7 +3556,9 @@ int ocfs2_zero_tail_for_truncate(struct inode *inode, handle_t *handle,
 	 * wait on them - the truncate_inode_pages() call later will
 	 * do that for us.
 	 */
-	ret = filemap_fdatawrite(inode->i_mapping);
+	endbyte = ocfs2_align_bytes_to_clusters(inode->i_sb, new_i_size);
+	ret = do_sync_mapping_range(inode->i_mapping, new_i_size,
+				    endbyte - 1, SYNC_FILE_RANGE_WRITE);
 	if (ret)
 		mlog_errno(ret);