linux-kernel - [PATCH v5 01/12] common/rc: Add _min() and

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Message-ID: <b8f62c7ab108b74a61db6ded976292e8a4b46ad8.1755849134.git.ojaswin@linux.ibm.com>
Date: Fri, 22 Aug 2025 13:32:00 +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 v5 01/12] 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 ff5df203..35a1c835 100644
--- a/common/rc
+++ b/common/rc
@@ -5975,6 +5975,28 @@ _require_inplace_writes()
 	fi
 }
 
+_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