move Rust sources to top level, C sources into c_src

[bcachefs-tools-debian] / linux / int_sqrt.c

diff --git a/linux/int_sqrt.c b/linux/int_sqrt.c
deleted file mode 100644 (file)
index a8170bb..0000000
--- a/linux/int_sqrt.c
+++ /dev/null
@@ -1,71 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (C) 2013 Davidlohr Bueso <davidlohr.bueso@hp.com>
- *
- *  Based on the shift-and-subtract algorithm for computing integer
- *  square root from Guy L. Steele.
- */
-
-#include <linux/export.h>
-#include <linux/bitops.h>
-#include <linux/limits.h>
-#include <linux/math.h>
-
-/**
- * int_sqrt - computes the integer square root
- * @x: integer of which to calculate the sqrt
- *
- * Computes: floor(sqrt(x))
- */
-unsigned long int_sqrt(unsigned long x)
-{
-       unsigned long b, m, y = 0;
-
-       if (x <= 1)
-               return x;
-
-       m = 1UL << (__fls(x) & ~1UL);
-       while (m != 0) {
-               b = y + m;
-               y >>= 1;
-
-               if (x >= b) {
-                       x -= b;
-                       y += m;
-               }
-               m >>= 2;
-       }
-
-       return y;
-}
-EXPORT_SYMBOL(int_sqrt);
-
-#if BITS_PER_LONG < 64
-/**
- * int_sqrt64 - strongly typed int_sqrt function when minimum 64 bit input
- * is expected.
- * @x: 64bit integer of which to calculate the sqrt
- */
-u32 int_sqrt64(u64 x)
-{
-       u64 b, m, y = 0;
-
-       if (x <= ULONG_MAX)
-               return int_sqrt((unsigned long) x);
-
-       m = 1ULL << ((fls64(x) - 1) & ~1ULL);
-       while (m != 0) {
-               b = y + m;
-               y >>= 1;
-
-               if (x >= b) {
-                       x -= b;
-                       y += m;
-               }
-               m >>= 2;
-       }
-
-       return y;
-}
-EXPORT_SYMBOL(int_sqrt64);
-#endif