X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=lttng-abi.c;h=8f63ad94c8fb053d9178aa91aa71d14d317f4e1b;hb=d2a1666fef6ff17d95e2ea2485b52f445b7760ea;hp=ede2ae79bd7b15c45ec4ef3864a048cc85f2e006;hpb=33a39a3cd074931ab3a2eaff6eb8807091cf8172;p=lttng-modules.git

diff --git a/lttng-abi.c b/lttng-abi.c
index ede2ae79..8f63ad94 100644
--- a/lttng-abi.c
+++ b/lttng-abi.c
@@ -144,6 +144,51 @@ fd_error:
 	return ret;
 }
 
+#ifndef CONFIG_HAVE_SYSCALL_TRACEPOINTS
+static inline
+int lttng_abi_syscall_list(void)
+{
+	return -ENOSYS;
+}
+#else
+static
+int lttng_abi_syscall_list(void)
+{
+	struct file *syscall_list_file;
+	int file_fd, ret;
+
+	file_fd = lttng_get_unused_fd();
+	if (file_fd < 0) {
+		ret = file_fd;
+		goto fd_error;
+	}
+
+	syscall_list_file = anon_inode_getfile("[lttng_syscall_list]",
+					  &lttng_syscall_list_fops,
+					  NULL, O_RDWR);
+	if (IS_ERR(syscall_list_file)) {
+		ret = PTR_ERR(syscall_list_file);
+		goto file_error;
+	}
+	ret = lttng_syscall_list_fops.open(NULL, syscall_list_file);
+	if (ret < 0)
+		goto open_error;
+	fd_install(file_fd, syscall_list_file);
+	if (file_fd < 0) {
+		ret = file_fd;
+		goto fd_error;
+	}
+	return file_fd;
+
+open_error:
+	fput(syscall_list_file);
+file_error:
+	put_unused_fd(file_fd);
+fd_error:
+	return ret;
+}
+#endif
+
 static
 void lttng_abi_tracer_version(struct lttng_kernel_tracer_version *v)
 {
@@ -195,6 +240,8 @@ long lttng_abi_add_context(struct file *file,
 		return lttng_add_procname_to_ctx(ctx);
 	case LTTNG_KERNEL_CONTEXT_HOSTNAME:
 		return lttng_add_hostname_to_ctx(ctx);
+	case LTTNG_KERNEL_CONTEXT_CPU_ID:
+		return lttng_add_cpu_id_to_ctx(ctx);
 	default:
 		return -EINVAL;
 	}
@@ -575,9 +622,11 @@ unsigned int lttng_metadata_ring_buffer_poll(struct file *filp,
 		if (finalized)
 			mask |= POLLHUP;
 
+		mutex_lock(&stream->metadata_cache->lock);
 		if (stream->metadata_cache->metadata_written >
 				stream->metadata_out)
 			mask |= POLLIN;
+		mutex_unlock(&stream->metadata_cache->lock);
 	}
 
 	return mask;
@@ -875,7 +924,6 @@ int lttng_abi_open_metadata_stream(struct file *channel_file)
 	metadata_stream->priv = buf;
 	stream_priv = metadata_stream;
 	metadata_stream->transport = channel->transport;
-	mutex_init(&metadata_stream->lock);
 
 	/*
 	 * Since life-time of metadata cache differs from that of
@@ -1323,6 +1371,18 @@ long lttng_event_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 			WARN_ON_ONCE(1);
 			return -ENOSYS;
 		}
+	case LTTNG_KERNEL_FILTER:
+		switch (*evtype) {
+		case LTTNG_TYPE_EVENT:
+			return -EINVAL;
+		case LTTNG_TYPE_ENABLER:
+		{
+			enabler = file->private_data;
+			return lttng_enabler_attach_bytecode(enabler,
+				(struct lttng_kernel_filter_bytecode __user *) arg);
+		}
+
+		}
 	default:
 		return -ENOIOCTLCMD;
 	}