WRITE_BARRIER     296 block/blk-barrier.c 	submit_bio(WRITE_BARRIER, bio);
WRITE_BARRIER    2934 fs/buffer.c    		rw |= WRITE_BARRIER;
WRITE_BARRIER     608 fs/gfs2/log.c  	submit_bh(WRITE_BARRIER | (1 << BIO_RW_META), bh);
WRITE_BARRIER     700 fs/reiserfs/journal.c 	return submit_bh(WRITE_BARRIER, bh);
WRITE_BARRIER    1161 fs/xfs/linux-2.6/xfs_buf.c 		rw = WRITE_BARRIER;