From 4513899092b3254b3539f92a65d2839afa1d50f6 Mon Sep 17 00:00:00 2001 From: Steven Whitehouse Date: Mon, 28 Jan 2013 09:30:07 +0000 Subject: GFS2: Use ->writepages for ordered writes Instead of using a list of buffers to write ahead of the journal flush, this now uses a list of inodes and calls ->writepages via filemap_fdatawrite() in order to achieve the same thing. For most use cases this results in a shorter ordered write list, as well as much larger i/os being issued. The ordered write list is sorted by inode number before writing in order to retain the disk block ordering between inodes as per the previous code. The previous ordered write code used to conflict in its assumptions about how to write out the disk blocks with mpage_writepages() so that with this updated version we can also use mpage_writepages() for GFS2's ordered write, writepages implementation. So we will also send larger i/os from writeback too. Signed-off-by: Steven Whitehouse --- fs/gfs2/bmap.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'fs/gfs2/bmap.c') diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c index 7a86275..d29d779 100644 --- a/fs/gfs2/bmap.c +++ b/fs/gfs2/bmap.c @@ -22,6 +22,7 @@ #include "meta_io.h" #include "quota.h" #include "rgrp.h" +#include "log.h" #include "super.h" #include "trans.h" #include "dir.h" @@ -1137,6 +1138,7 @@ static int trunc_end(struct gfs2_inode *ip) ip->i_height = 0; ip->i_goal = ip->i_no_addr; gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode)); + gfs2_ordered_del_inode(ip); } ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME; ip->i_diskflags &= ~GFS2_DIF_TRUNC_IN_PROG; -- cgit v1.1