Messages in this thread Patch in this message | | | From | Yury Norov <> | Subject | [PATCH v3 6/8] bitmap: replace _reg_op(REG_OP_ISFREE) with find_next_bit() | Date | Tue, 15 Aug 2023 16:36:26 -0700 |
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_reg_op(REG_OP_ISFREE) can be trivially replaced with find_next_bit(). Doing that opens room for potential small_const_nbits() optimization.
Signed-off-by: Yury Norov <yury.norov@gmail.com> --- lib/bitmap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/bitmap.c b/lib/bitmap.c index 2898ec2bdef1..c29140e27d20 100644 --- a/lib/bitmap.c +++ b/lib/bitmap.c @@ -1356,7 +1356,7 @@ int bitmap_allocate_region(unsigned long *bitmap, unsigned int pos, int order) { unsigned int len = BIT(order); - if (!__reg_op(bitmap, pos, order, REG_OP_ISFREE)) + if (find_next_bit(bitmap, pos + len, pos) < pos + len) return -EBUSY; bitmap_set(bitmap, pos, len); return 0; -- 2.39.2
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