linux-kernel - [PATCH 5/6] bitmap: fix opencoded bitmap_allocate

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Date:   Thu, 27 Oct 2022 18:48:33 -0700
From:   Yury Norov <yury.norov@...il.com>
To:     linux-kernel@...r.kernel.org,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Yury Norov <yury.norov@...il.com>
Subject: [PATCH 5/6] bitmap: fix opencoded bitmap_allocate_region()

bitmap_find_region() opencodes bitmap_allocate_region(). Fix it.

Signed-off-by: Yury Norov <yury.norov@...il.com>
---
 lib/bitmap.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/lib/bitmap.c b/lib/bitmap.c
index 389446b6f248..2a85fe16f3fa 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -1315,10 +1315,8 @@ int bitmap_find_free_region(unsigned long *bitmap, unsigned int bits, int order)
 	unsigned int pos, end;		/* scans bitmap by regions of size order */
 
 	for (pos = 0 ; (end = pos + (1U << order)) <= bits; pos = end) {
-		if (!bitmap_empty_from(bitmap, pos, pos + BIT(order)))
-			continue;
-		bitmap_set(bitmap, pos, pos + BIT(order));
-		return pos;
+		if (!bitmap_allocate_region(bitmap, pos, order))
+			return pos;
 	}
 	return -ENOMEM;
 }
-- 
2.34.1