linux-kernel - [PATCH] lib: test_hmm: Use min() to improve dmirror

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Message-Id: <20240726131245.161695-1-thorsten.blum@toblux.com>
Date: Fri, 26 Jul 2024 15:12:46 +0200
From: Thorsten Blum <thorsten.blum@...lux.com>
To: jglisse@...hat.com,
	akpm@...ux-foundation.org
Cc: linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Thorsten Blum <thorsten.blum@...lux.com>
Subject: [PATCH] lib: test_hmm: Use min() to improve dmirror_exclusive()

Use min() to simplify the dmirror_exclusive() function and improve its
readability.

Signed-off-by: Thorsten Blum <thorsten.blum@...lux.com>
---
 lib/test_hmm.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/lib/test_hmm.c b/lib/test_hmm.c
index ee20e1f9bae9..056f2e411d7b 100644
--- a/lib/test_hmm.c
+++ b/lib/test_hmm.c
@@ -799,10 +799,7 @@ static int dmirror_exclusive(struct dmirror *dmirror,
 		unsigned long mapped = 0;
 		int i;
 
-		if (end < addr + (ARRAY_SIZE(pages) << PAGE_SHIFT))
-			next = end;
-		else
-			next = addr + (ARRAY_SIZE(pages) << PAGE_SHIFT);
+		next = min(end, addr + (ARRAY_SIZE(pages) << PAGE_SHIFT));
 
 		ret = make_device_exclusive_range(mm, addr, next, pages, NULL);
 		/*
-- 
2.39.2