GFS2: Write out dirty inode metadata in delayed deletes

If a dirty GFS2 inode was being deleted but was in use by another node, its metadata was not getting written out before GFS2 checked for dirty buffers in gfs2_ail_flush(). GFS2 was relying on inode_go_sync() to write out the metadata when the other node tried to free the file, but it failed the error check before it got that far. This patch writes out the metadata before calling gfs2_ail_flush()

Signed-off-by Benjamin Marzinski <[email protected]>

---
 fs/gfs2/super.c |    5 +++++
 1 file changed, 5 insertions(+)

Index: gfs2-3.0-nmw/fs/gfs2/super.c
===================================================================

fs/gfs2/super.c +5 -0

@@ -1545,6 +1545,11 @@ static void gfs2_evict_inode(struct inod
 
 out_truncate:
 	gfs2_log_flush(sdp, ip->i_gl);
+	if (test_bit(GLF_DIRTY, &ip->i_gl->gl_flags)) {
+		struct address_space *metamapping = gfs2_glock2aspace(ip->i_gl);
+		filemap_fdatawrite(metamapping);
+		filemap_fdatawait(metamapping);
+	}
 	write_inode_now(inode, 1);
 	gfs2_ail_flush(ip->i_gl, 0);