From b0b379e77db79c372161a6aee5cc46f426f99df7 Mon Sep 17 00:00:00 2001
From: Chandan Babu R <chandanrlinux@gmail.com>
Date: Tue, 9 Mar 2021 10:31:13 +0530
Subject: [PATCH] common/xfs: Add a helper to get an inode fork's extent count

This commit adds the helper _scratch_get_iext_count() which returns an
inode fork's extent count.

Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
---
 common/xfs | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/common/xfs b/common/xfs
index 4469f045..fff65667 100644
--- a/common/xfs
+++ b/common/xfs
@@ -975,6 +975,26 @@ _scratch_get_bmx_prefix() {
 	return 1
 }
 
+_scratch_get_iext_count()
+{
+	local ino=$1
+	local whichfork=$2
+	local field=""
+
+	case $whichfork in
+		"attr")
+			field=core.naextents
+			;;
+		"data")
+			field=core.nextents
+			;;
+		*)
+			return 1
+	esac
+
+	_scratch_xfs_get_metadata_field $field "inode $ino"
+}
+
 #
 # Ensures that we don't pass any mount options incompatible with XFS v4
 #
-- 
2.39.5