xfs: Rename xa_ elements to ail_

This is a simple rename, except that xa_ail becomes ail_head.

Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>

fs/xfs/xfs_inode_item.c

@@ -502,8 +502,8 @@ STATIC uint
 xfs_inode_item_push(
 	struct xfs_log_item	*lip,
 	struct list_head	*buffer_list)
-		__releases(&lip->li_ailp->xa_lock)
-		__acquires(&lip->li_ailp->xa_lock)
+		__releases(&lip->li_ailp->ail_lock)
+		__acquires(&lip->li_ailp->ail_lock)
 {
 	struct xfs_inode_log_item *iip = INODE_ITEM(lip);
 	struct xfs_inode	*ip = iip->ili_inode;
@@ -562,7 +562,7 @@ xfs_inode_item_push(
 	ASSERT(iip->ili_fields != 0 || XFS_FORCED_SHUTDOWN(ip->i_mount));
 	ASSERT(iip->ili_logged == 0 || XFS_FORCED_SHUTDOWN(ip->i_mount));
 
-	spin_unlock(&lip->li_ailp->xa_lock);
+	spin_unlock(&lip->li_ailp->ail_lock);
 
 	error = xfs_iflush(ip, &bp);
 	if (!error) {
@@ -571,7 +571,7 @@ xfs_inode_item_push(
 		xfs_buf_relse(bp);
 	}
 
-	spin_lock(&lip->li_ailp->xa_lock);
+	spin_lock(&lip->li_ailp->ail_lock);
 out_unlock:
 	xfs_iunlock(ip, XFS_ILOCK_SHARED);
 	return rval;
@@ -759,7 +759,7 @@ xfs_iflush_done(
 		bool			mlip_changed = false;
 
 		/* this is an opencoded batch version of xfs_trans_ail_delete */
-		spin_lock(&ailp->xa_lock);
+		spin_lock(&ailp->ail_lock);
 		list_for_each_entry(blip, &tmp, li_bio_list) {
 			if (INODE_ITEM(blip)->ili_logged &&
 			    blip->li_lsn == INODE_ITEM(blip)->ili_flush_lsn)
@@ -770,15 +770,15 @@ xfs_iflush_done(
 		}
 
 		if (mlip_changed) {
-			if (!XFS_FORCED_SHUTDOWN(ailp->xa_mount))
-				xlog_assign_tail_lsn_locked(ailp->xa_mount);
-			if (list_empty(&ailp->xa_ail))
-				wake_up_all(&ailp->xa_empty);
+			if (!XFS_FORCED_SHUTDOWN(ailp->ail_mount))
+				xlog_assign_tail_lsn_locked(ailp->ail_mount);
+			if (list_empty(&ailp->ail_head))
+				wake_up_all(&ailp->ail_empty);
 		}
-		spin_unlock(&ailp->xa_lock);
+		spin_unlock(&ailp->ail_lock);
 
 		if (mlip_changed)
-			xfs_log_space_wake(ailp->xa_mount);
+			xfs_log_space_wake(ailp->ail_mount);
 	}
 
 	/*