From: Tao Ma Date: Thu, 10 Sep 2009 07:28:47 +0000 (+0800) Subject: ocfs2: Use buffer IO if we are appending a file. X-Git-Tag: v2.6.32-rc1~173^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b80474b432913f73cce8db001e9fa3104f9b79ee;p=pandora-kernel.git ocfs2: Use buffer IO if we are appending a file. In ocfs2_file_aio_write, we will prevent direct io if we find that we are appending(changing i_size) and call generic_file_aio_write_nolock. But actually O_DIRECT flag is there and this function will call generic_file_direct_write eventually which will update i_size and leave di->i_size alone. The bug is http://oss.oracle.com/bugzilla/show_bug.cgi?id=1173. So this patch let ocfs2_direct_IO returns 0 directly if we are appending so that buffered write will be called and di->i_size get updated successfully. And this is also what we want in ocfs2_file_aio_write. Signed-off-by: Tao Ma Signed-off-by: Joel Becker --- Reading git-diff-tree failed