1 files changed, 24 insertions, 10 deletions

diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 46bd9d52ab51..d852a2b3e1fd 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -120,7 +120,7 @@ xlog_verify_iclog(
 	struct xlog		*log,
 	struct xlog_in_core	*iclog,
 	int			count,
-	boolean_t		syncing);
+	bool                    syncing);
 STATIC void
 xlog_verify_tail_lsn(
 	struct xlog		*log,
@@ -1737,7 +1737,7 @@ xlog_sync(
 	ASSERT(XFS_BUF_ADDR(bp) <= log->l_logBBsize-1);
 	ASSERT(XFS_BUF_ADDR(bp) + BTOBB(count) <= log->l_logBBsize);
 
-	xlog_verify_iclog(log, iclog, count, B_TRUE);
+	xlog_verify_iclog(log, iclog, count, true);
 
 	/* account for log which doesn't start at block #0 */
 	XFS_BUF_SET_ADDR(bp, XFS_BUF_ADDR(bp) + log->l_logBBstart);
@@ -1963,6 +1963,10 @@ xlog_write_calc_vec_length(
 		headers++;
 
 	for (lv = log_vector; lv; lv = lv->lv_next) {
+		/* we don't write ordered log vectors */
+		if (lv->lv_buf_len == XFS_LOG_VEC_ORDERED)
+			continue;
+
 		headers += lv->lv_niovecs;
 
 		for (i = 0; i < lv->lv_niovecs; i++) {
@@ -2216,7 +2220,7 @@ xlog_write(
 	index = 0;
 	lv = log_vector;
 	vecp = lv->lv_iovecp;
-	while (lv && index < lv->lv_niovecs) {
+	while (lv && (!lv->lv_niovecs || index < lv->lv_niovecs)) {
 		void		*ptr;
 		int		log_offset;
 
@@ -2236,13 +2240,22 @@ xlog_write(
 		 * This loop writes out as many regions as can fit in the amount
 		 * of space which was allocated by xlog_state_get_iclog_space().
 		 */
-		while (lv && index < lv->lv_niovecs) {
-			struct xfs_log_iovec	*reg = &vecp[index];
+		while (lv && (!lv->lv_niovecs || index < lv->lv_niovecs)) {
+			struct xfs_log_iovec	*reg;
 			struct xlog_op_header	*ophdr;
 			int			start_rec_copy;
 			int			copy_len;
 			int			copy_off;
+			bool			ordered = false;
+
+			/* ordered log vectors have no regions to write */
+			if (lv->lv_buf_len == XFS_LOG_VEC_ORDERED) {
+				ASSERT(lv->lv_niovecs == 0);
+				ordered = true;
+				goto next_lv;
+			}
 
+			reg = &vecp[index];
 			ASSERT(reg->i_len % sizeof(__int32_t) == 0);
 			ASSERT((unsigned long)ptr % sizeof(__int32_t) == 0);
 
@@ -2302,12 +2315,13 @@ xlog_write(
 				break;
 
 			if (++index == lv->lv_niovecs) {
+next_lv:
 				lv = lv->lv_next;
 				index = 0;
 				if (lv)
 					vecp = lv->lv_iovecp;
 			}
-			if (record_cnt == 0) {
+			if (record_cnt == 0 && ordered == false) {
 				if (!lv)
 					return 0;
 				break;
@@ -3485,7 +3499,7 @@ xlog_ticket_alloc(
 	tic->t_curr_res		= unit_bytes;
 	tic->t_cnt		= cnt;
 	tic->t_ocnt		= cnt;
-	tic->t_tid		= random32();
+	tic->t_tid		= prandom_u32();
 	tic->t_clientid		= client;
 	tic->t_flags		= XLOG_TIC_INITED;
 	tic->t_trans_type	= 0;
@@ -3611,7 +3625,7 @@ xlog_verify_iclog(
 	struct xlog		*log,
 	struct xlog_in_core	*iclog,
 	int			count,
-	boolean_t		syncing)
+	bool                    syncing)
 {
 	xlog_op_header_t	*ophead;
 	xlog_in_core_t		*icptr;
@@ -3659,7 +3673,7 @@ xlog_verify_iclog(
 		/* clientid is only 1 byte */
 		field_offset = (__psint_t)
 			       ((xfs_caddr_t)&(ophead->oh_clientid) - base_ptr);
-		if (syncing == B_FALSE || (field_offset & 0x1ff)) {
+		if (!syncing || (field_offset & 0x1ff)) {
 			clientid = ophead->oh_clientid;
 		} else {
 			idx = BTOBBT((xfs_caddr_t)&(ophead->oh_clientid) - iclog->ic_datap);
@@ -3682,7 +3696,7 @@ xlog_verify_iclog(
 		/* check length */
 		field_offset = (__psint_t)
 			       ((xfs_caddr_t)&(ophead->oh_len) - base_ptr);
-		if (syncing == B_FALSE || (field_offset & 0x1ff)) {
+		if (!syncing || (field_offset & 0x1ff)) {
 			op_len = be32_to_cpu(ophead->oh_len);
 		} else {
 			idx = BTOBBT((__psint_t)&ophead->oh_len -