linux-kernel - [PATCH v4 01/11] common/rc: Add _min() and

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Message-ID: <43f45a0885f28fd1d1a88122a42830dd9eeb7e2c.1754833177.git.ojaswin@linux.ibm.com>
Date: Sun, 10 Aug 2025 19:11:52 +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 v4 01/11] common/rc: Add _min() and _max() helpers

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

Reviewed-by: Darrick J. Wong <djwong@...nel.org>
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 96578d15..3858ddce 100644
--- a/common/rc
+++ b/common/rc
@@ -5873,6 +5873,28 @@ _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