Re: [PATCH v5 04/12] ltp/fsx.c: Add atomic writes support to fsx

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On 05/09/2025 17:29, Ojaswin Mujoo wrote:
+
+/*
+ * Round down n to nearest power of 2.
+ * If n is already a power of 2, return n;
+ */
+static int rounddown_pow_of_2(int n) {
+	int i = 0;
+
+	if (is_power_of_2(n))
+		return n;
+
+	for (; (1 << i) < n; i++);
+
+	return 1 << (i - 1);
Is this the neatest way to do this?
Well it is a straigforward o(logn) way. Do you have something else in
mind?

check what the kernel does is always a good place to start...

Thanks




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