xfs: refactor adding recovered intent items to the log

During recovery, every intent that we recover from the log has to be
added to the AIL.  Replace the open-coded addition with a helper.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
diff --git a/fs/xfs/xfs_extfree_item.c b/fs/xfs/xfs_extfree_item.c
index 3855e30..99c4643 100644
--- a/fs/xfs/xfs_extfree_item.c
+++ b/fs/xfs/xfs_extfree_item.c
@@ -710,15 +710,11 @@ xlog_recover_efi_commit_pass2(
 		return error;
 	}
 	atomic_set(&efip->efi_next_extent, efi_formatp->efi_nextents);
-
-	spin_lock(&log->l_ailp->ail_lock);
 	/*
-	 * The EFI has two references. One for the EFD and one for EFI to ensure
-	 * it makes it into the AIL. Insert the EFI into the AIL directly and
-	 * drop the EFI reference. Note that xfs_trans_ail_update() drops the
-	 * AIL lock.
+	 * Insert the intent into the AIL directly and drop one reference so
+	 * that finishing or canceling the work will drop the other.
 	 */
-	xfs_trans_ail_update(log->l_ailp, &efip->efi_item, lsn);
+	xfs_trans_ail_insert(log->l_ailp, &efip->efi_item, lsn);
 	xfs_efi_release(efip);
 	return 0;
 }