lib: test_hmm: use min() to improve dmirror_exclusive()

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

Link: https://lkml.kernel.org/r/20240726131245.161695-1-thorsten.blum@toblux.com
Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Jérôme Glisse <jglisse@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/lib/test_hmm.c b/lib/test_hmm.c
index ee20e1f9bae92804b00bb9ecbf2d1c2b66dcd21a..056f2e411d7b403d9d76a2379c972f221bda5a0e 100644 (file)
--- 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);
                /*