--- zzzz-none-000/linux-3.10.107/fs/xfs/xfs_trans_ail.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/fs/xfs/xfs_trans_ail.c	2021-02-04 17:41:59.000000000 +0000
@@ -18,15 +18,15 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
-#include "xfs_sb.h"
-#include "xfs_ag.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_mount.h"
+#include "xfs_trans.h"
 #include "xfs_trans_priv.h"
 #include "xfs_trace.h"
 #include "xfs_error.h"
+#include "xfs_log.h"
 
 #ifdef DEBUG
 /*
@@ -61,20 +61,6 @@
 #endif /* DEBUG */
 
 /*
- * Return a pointer to the first item in the AIL.  If the AIL is empty, then
- * return NULL.
- */
-xfs_log_item_t *
-xfs_ail_min(
-	struct xfs_ail  *ailp)
-{
-	if (list_empty(&ailp->xa_ail))
-		return NULL;
-
-	return list_first_entry(&ailp->xa_ail, xfs_log_item_t, li_ail);
-}
-
- /*
  * Return a pointer to the last item in the AIL.  If the AIL is empty, then
  * return NULL.
  */
@@ -173,7 +159,7 @@
 {
 	struct xfs_log_item	*lip = cur->item;
 
-	if ((__psint_t)lip & 1)
+	if ((uintptr_t)lip & 1)
 		lip = xfs_ail_min(ailp);
 	if (lip)
 		cur->item = xfs_ail_next(ailp, lip);
@@ -186,7 +172,6 @@
  */
 void
 xfs_trans_ail_cursor_done(
-	struct xfs_ail		*ailp,
 	struct xfs_ail_cursor	*cur)
 {
 	cur->item = NULL;
@@ -211,7 +196,7 @@
 	list_for_each_entry(cur, &ailp->xa_cursors, list) {
 		if (cur->item == lip)
 			cur->item = (struct xfs_log_item *)
-					((__psint_t)cur->item | 1);
+					((uintptr_t)cur->item | 1);
 	}
 }
 
@@ -302,7 +287,7 @@
 	 * find the place in the AIL where the items belong.
 	 */
 	lip = cur ? cur->item : NULL;
-	if (!lip || (__psint_t) lip & 1)
+	if (!lip || (uintptr_t)lip & 1)
 		lip = __xfs_trans_ail_cursor_last(ailp, lsn);
 
 	/*
@@ -364,7 +349,7 @@
 	     xfs_ail_min_lsn(ailp))) {
 		ailp->xa_log_flush = 0;
 
-		XFS_STATS_INC(xs_push_ail_flush);
+		XFS_STATS_INC(mp, xs_push_ail_flush);
 		xfs_log_force(mp, XFS_LOG_SYNC);
 	}
 
@@ -381,26 +366,26 @@
 		 * If the AIL is empty or our push has reached the end we are
 		 * done now.
 		 */
-		xfs_trans_ail_cursor_done(ailp, &cur);
+		xfs_trans_ail_cursor_done(&cur);
 		spin_unlock(&ailp->xa_lock);
 		goto out_done;
 	}
 
-	XFS_STATS_INC(xs_push_ail);
+	XFS_STATS_INC(mp, xs_push_ail);
 
 	lsn = lip->li_lsn;
 	while ((XFS_LSN_CMP(lip->li_lsn, target) <= 0)) {
 		int	lock_result;
 
 		/*
-		 * Note that IOP_PUSH may unlock and reacquire the AIL lock.  We
+		 * Note that iop_push may unlock and reacquire the AIL lock.  We
 		 * rely on the AIL cursor implementation to be able to deal with
 		 * the dropped lock.
 		 */
-		lock_result = IOP_PUSH(lip, &ailp->xa_buf_list);
+		lock_result = lip->li_ops->iop_push(lip, &ailp->xa_buf_list);
 		switch (lock_result) {
 		case XFS_ITEM_SUCCESS:
-			XFS_STATS_INC(xs_push_ail_success);
+			XFS_STATS_INC(mp, xs_push_ail_success);
 			trace_xfs_ail_push(lip);
 
 			ailp->xa_last_pushed_lsn = lsn;
@@ -418,7 +403,7 @@
 			 * re-try the flushing relatively soon if most of the
 			 * AIL is beeing flushed.
 			 */
-			XFS_STATS_INC(xs_push_ail_flushing);
+			XFS_STATS_INC(mp, xs_push_ail_flushing);
 			trace_xfs_ail_flushing(lip);
 
 			flushing++;
@@ -426,14 +411,14 @@
 			break;
 
 		case XFS_ITEM_PINNED:
-			XFS_STATS_INC(xs_push_ail_pinned);
+			XFS_STATS_INC(mp, xs_push_ail_pinned);
 			trace_xfs_ail_pinned(lip);
 
 			stuck++;
 			ailp->xa_log_flush++;
 			break;
 		case XFS_ITEM_LOCKED:
-			XFS_STATS_INC(xs_push_ail_locked);
+			XFS_STATS_INC(mp, xs_push_ail_locked);
 			trace_xfs_ail_locked(lip);
 
 			stuck++;
@@ -466,7 +451,7 @@
 			break;
 		lsn = lip->li_lsn;
 	}
-	xfs_trans_ail_cursor_done(ailp, &cur);
+	xfs_trans_ail_cursor_done(&cur);
 	spin_unlock(&ailp->xa_lock);
 
 	if (xfs_buf_delwri_submit_nowait(&ailp->xa_buf_list))
@@ -672,11 +657,13 @@
 			if (XFS_LSN_CMP(lsn, lip->li_lsn) <= 0)
 				continue;
 
+			trace_xfs_ail_move(lip, lip->li_lsn, lsn);
 			xfs_ail_delete(ailp, lip);
 			if (mlip == lip)
 				mlip_changed = 1;
 		} else {
 			lip->li_flags |= XFS_LI_IN_AIL;
+			trace_xfs_ail_insert(lip, 0, lsn);
 		}
 		lip->li_lsn = lsn;
 		list_add(&lip->li_ail, &tmp);
@@ -745,6 +732,7 @@
 			return;
 		}
 
+		trace_xfs_ail_delete(lip, mlip->li_lsn, lip->li_lsn);
 		xfs_ail_delete(ailp, lip);
 		lip->li_flags &= ~XFS_LI_IN_AIL;
 		lip->li_lsn = 0;
@@ -773,7 +761,7 @@
 
 	ailp = kmem_zalloc(sizeof(struct xfs_ail), KM_MAYFAIL);
 	if (!ailp)
-		return ENOMEM;
+		return -ENOMEM;
 
 	ailp->xa_mount = mp;
 	INIT_LIST_HEAD(&ailp->xa_ail);
@@ -792,7 +780,7 @@
 
 out_free_ailp:
 	kmem_free(ailp);
-	return ENOMEM;
+	return -ENOMEM;
 }
 
 void