linux-kernel - [PATCH v3 01/13] common/rc: Add _min() and

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Message-ID: <f61636e664cf22024ee68b2f0ca3d3583eec7ec4.1752329098.git.ojaswin@linux.ibm.com>
Date: Sat, 12 Jul 2025 19:42:43 +0530
From: Ojaswin Mujoo <ojaswin@...ux.ibm.com>
To: Zorro Lang <zlang@...hat.com>, fstests@...r.kernel.org
Cc: Ritesh Harjani <ritesh.list@...il.com>, djwong@...nel.org,
        john.g.garry@...cle.com, tytso@....edu, linux-xfs@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-ext4@...r.kernel.org
Subject: [PATCH v3 01/13] common/rc: Add _min() and _max() helpers

Many programs open code these functionalities so add it as a generic helper
in common/rc

Signed-off-by: Ojaswin Mujoo <ojaswin@...ux.ibm.com>
---
 common/rc | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/common/rc b/common/rc
index f71cc8f0..9a9d3cc8 100644
--- a/common/rc
+++ b/common/rc
@@ -5817,6 +5817,28 @@ _require_program() {
 	_have_program "$1" || _notrun "$tag required"
 }
 
+_min() {
+	local ret
+
+	for arg in "$@"; do
+		if [ -z "$ret" ] || (( $arg < $ret )); then
+			ret="$arg"
+		fi
+	done
+	echo $ret
+}
+
+_max() {
+	local ret
+
+	for arg in "$@"; do
+		if [ -z "$ret" ] || (( $arg > $ret )); then
+			ret="$arg"
+		fi
+	done
+	echo $ret
+}
+
 ################################################################################
 # make sure this script returns success
 /bin/true
-- 
2.49.0