gfs2_iomap_need_write_lock 1163 fs/gfs2/bmap.c if (gfs2_iomap_need_write_lock(flags)) { gfs2_iomap_need_write_lock 1196 fs/gfs2/bmap.c if (ret && gfs2_iomap_need_write_lock(flags)) gfs2_iomap_need_write_lock 1254 fs/gfs2/bmap.c if (gfs2_iomap_need_write_lock(flags))