Cleanup: Move all source files to src/

[lttng-modules.git] / probes / lttng-probe-user.c

diff --git a/probes/lttng-probe-user.c b/probes/lttng-probe-user.c
deleted file mode 100644 (file)
index 009cfed..0000000
--- a/probes/lttng-probe-user.c
+++ /dev/null
@@ -1,52 +0,0 @@
-/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
- *
- * lttng-probe-user.c
- *
- * Copyright (C) 2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- */
-
-#include <linux/uaccess.h>
-#include <linux/module.h>
-#include <wrapper/uaccess.h>
-#include <lttng/probe-user.h>
-
-/*
- * Calculate string length. Include final null terminating character if there is
- * one, or ends at first fault. Disabling page faults ensures that we can safely
- * call this from pretty much any context, including those where the caller
- * holds mmap_sem, or any lock which nests in mmap_sem.
- */
-long lttng_strlen_user_inatomic(const char *addr)
-{
-       long count = 0;
-       mm_segment_t old_fs;
-
-       if (!addr)
-               return 0;
-
-       old_fs = get_fs();
-       set_fs(KERNEL_DS);
-       pagefault_disable();
-       for (;;) {
-               char v;
-               unsigned long ret;
-
-               if (unlikely(!lttng_access_ok(VERIFY_READ,
-                               (__force const char __user *) addr,
-                               sizeof(v))))
-                       break;
-               ret = __copy_from_user_inatomic(&v,
-                       (__force const char __user *)(addr),
-                       sizeof(v));
-               if (unlikely(ret > 0))
-                       break;
-               count++;
-               if (unlikely(!v))
-                       break;
-               addr++;
-       }
-       pagefault_enable();
-       set_fs(old_fs);
-       return count;
-}
-EXPORT_SYMBOL_GPL(lttng_strlen_user_inatomic);