xfs: Convert sync_page_range() to simple filemap_write_and_wait_range()

Christoph Hellwig says that it is enough for XFS to call
filemap_write_and_wait_range() instead of sync_page_range() because we do
all the metadata syncing when forcing the log.

CC: Felix Blyakher <felixb@sgi.com>
CC: xfs@oss.sgi.com
CC: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>

diff --git a/fs/xfs/linux-2.6/xfs_lrw.c b/fs/xfs/linux-2.6/xfs_lrw.c
index 7078974..fde63a3 100644 (file)
--- a/fs/xfs/linux-2.6/xfs_lrw.c
+++ b/fs/xfs/linux-2.6/xfs_lrw.c
@@ -817,7 +817,8 @@ write_retry:
                xfs_iunlock(xip, iolock);
                if (need_i_mutex)
                        mutex_unlock(&inode->i_mutex);
-               error2 = sync_page_range(inode, mapping, pos, ret);
+               error2 = filemap_write_and_wait_range(mapping, pos,
+                                                     pos + ret - 1);
                if (!error)
                        error = error2;
                if (need_i_mutex)