X-Git-Url: https://git.liburcu.org/?a=blobdiff_plain;f=include%2Fringbuffer%2Fbackend.h;h=ddcf8749f5c45fab7fc3cfde063eea3b9f051f84;hb=056c40d82b02499c6692e5c01e8da59d1e0bdd17;hp=c6e613c1d991101b80b332f5500eb58984080449;hpb=4774817fd892d3e065a337eb0d0cd9b617f697f2;p=lttng-modules.git

diff --git a/include/ringbuffer/backend.h b/include/ringbuffer/backend.h
index c6e613c1..ddcf8749 100644
--- a/include/ringbuffer/backend.h
+++ b/include/ringbuffer/backend.h
@@ -22,6 +22,7 @@
 #include <linux/fs.h>
 #include <linux/mm.h>
 #include <wrapper/uaccess.h>
+#include <lttng/probe-user.h>
 
 /* Internal helpers */
 #include <ringbuffer/backend_internal.h>
@@ -115,7 +116,6 @@ static inline
 void lib_ring_buffer_memset(const struct lttng_kernel_ring_buffer_config *config,
 			    struct lttng_kernel_ring_buffer_ctx *ctx, int c, size_t len)
 {
-
 	struct lttng_kernel_ring_buffer_backend *bufb = &ctx->priv.buf->backend;
 	struct channel_backend *chanb = &ctx->priv.chan->backend;
 	size_t index, bytes_left_in_page;
@@ -580,14 +580,7 @@ unsigned long lib_ring_buffer_copy_from_user_check_nofault(void *dest,
 						const void __user *src,
 						unsigned long len)
 {
-	unsigned long ret;
-
-	if (!lttng_access_ok(VERIFY_READ, src, len))
-		return 1;
-	pagefault_disable();
-	ret = __copy_from_user_inatomic(dest, src, len);
-	pagefault_enable();
-	return ret;
+	return lttng_copy_from_user_check_nofault(dest, src, len);
 }
 
 #endif /* _LIB_RING_BUFFER_BACKEND_H */