X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=probes%2Flttng-probe-user.c;h=0d1f95fe00861aec694136b514e07523e285898d;hb=HEAD;hp=4162a7e42d2d94942fa4d5927afff8f95660d807;hpb=9f36eaed6f91d5897924b551b44d1edd8cee00e2;p=lttng-modules.git

diff --git a/probes/lttng-probe-user.c b/probes/lttng-probe-user.c
deleted file mode 100644
index 4162a7e4..00000000
--- a/probes/lttng-probe-user.c
+++ /dev/null
@@ -1,51 +0,0 @@
-/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
- *
- * lttng-probe-user.c
- *
- * Copyright (C) 2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- */
-
-#include <linux/uaccess.h>
-#include <linux/module.h>
-#include <probes/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(!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);