fix: block: simplify and extend the block_bio_merge tracepoint class (v5.11)

[lttng-modules.git] / lttng-statedump-impl.c

diff --git a/lttng-statedump-impl.c b/lttng-statedump-impl.c
index b60531d507020bdbf26e8f7cac1b95f48d101663..cf803a73bf5b3b49e48f221b33b76719b4e8f7d1 100644 (file)
--- a/lttng-statedump-impl.c
+++ b/lttng-statedump-impl.c
@@ -55,26 +55,94 @@
 #define LTTNG_INSTRUMENTATION
 #include <instrumentation/events/lttng-module/lttng-statedump.h>
 
-DEFINE_TRACE(lttng_statedump_block_device);
-DEFINE_TRACE(lttng_statedump_end);
-DEFINE_TRACE(lttng_statedump_interrupt);
-DEFINE_TRACE(lttng_statedump_file_descriptor);
-DEFINE_TRACE(lttng_statedump_start);
-DEFINE_TRACE(lttng_statedump_process_state);
-DEFINE_TRACE(lttng_statedump_process_pid_ns);
+LTTNG_DEFINE_TRACE(lttng_statedump_block_device,
+       TP_PROTO(struct lttng_session *session,
+               dev_t dev, const char *diskname),
+       TP_ARGS(session, dev, diskname));
+
+LTTNG_DEFINE_TRACE(lttng_statedump_end,
+       TP_PROTO(struct lttng_session *session),
+       TP_ARGS(session));
+
+LTTNG_DEFINE_TRACE(lttng_statedump_interrupt,
+       TP_PROTO(struct lttng_session *session,
+               unsigned int irq, const char *chip_name,
+               struct irqaction *action),
+       TP_ARGS(session, irq, chip_name, action));
+
+LTTNG_DEFINE_TRACE(lttng_statedump_file_descriptor,
+       TP_PROTO(struct lttng_session *session,
+               struct files_struct *files,
+               int fd, const char *filename,
+               unsigned int flags, fmode_t fmode),
+       TP_ARGS(session, files, fd, filename, flags, fmode));
+
+LTTNG_DEFINE_TRACE(lttng_statedump_start,
+       TP_PROTO(struct lttng_session *session),
+       TP_ARGS(session));
+
+LTTNG_DEFINE_TRACE(lttng_statedump_process_state,
+       TP_PROTO(struct lttng_session *session,
+               struct task_struct *p,
+               int type, int mode, int submode, int status,
+               struct files_struct *files),
+       TP_ARGS(session, p, type, mode, submode, status, files));
+
+LTTNG_DEFINE_TRACE(lttng_statedump_process_pid_ns,
+       TP_PROTO(struct lttng_session *session,
+               struct task_struct *p,
+               struct pid_namespace *pid_ns),
+       TP_ARGS(session, p, pid_ns));
+
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,6,0))
-DEFINE_TRACE(lttng_statedump_process_cgroup_ns);
+LTTNG_DEFINE_TRACE(lttng_statedump_process_cgroup_ns,
+       TP_PROTO(struct lttng_session *session,
+               struct task_struct *p,
+               struct cgroup_namespace *cgroup_ns),
+       TP_ARGS(session, p, cgroup_ns));
 #endif
-DEFINE_TRACE(lttng_statedump_process_ipc_ns);
+
+LTTNG_DEFINE_TRACE(lttng_statedump_process_ipc_ns,
+       TP_PROTO(struct lttng_session *session,
+               struct task_struct *p,
+               struct ipc_namespace *ipc_ns),
+       TP_ARGS(session, p, ipc_ns));
+
 #ifndef LTTNG_MNT_NS_MISSING_HEADER
-DEFINE_TRACE(lttng_statedump_process_mnt_ns);
+LTTNG_DEFINE_TRACE(lttng_statedump_process_mnt_ns,
+       TP_PROTO(struct lttng_session *session,
+               struct task_struct *p,
+               struct mnt_namespace *mnt_ns),
+       TP_ARGS(session, p, mnt_ns));
 #endif
-DEFINE_TRACE(lttng_statedump_process_net_ns);
-DEFINE_TRACE(lttng_statedump_process_user_ns);
-DEFINE_TRACE(lttng_statedump_process_uts_ns);
-DEFINE_TRACE(lttng_statedump_network_interface);
+
+LTTNG_DEFINE_TRACE(lttng_statedump_process_net_ns,
+       TP_PROTO(struct lttng_session *session,
+               struct task_struct *p,
+               struct net *net_ns),
+       TP_ARGS(session, p, net_ns));
+
+LTTNG_DEFINE_TRACE(lttng_statedump_process_user_ns,
+       TP_PROTO(struct lttng_session *session,
+               struct task_struct *p,
+               struct user_namespace *user_ns),
+       TP_ARGS(session, p, user_ns));
+
+LTTNG_DEFINE_TRACE(lttng_statedump_process_uts_ns,
+       TP_PROTO(struct lttng_session *session,
+               struct task_struct *p,
+               struct uts_namespace *uts_ns),
+       TP_ARGS(session, p, uts_ns));
+
+LTTNG_DEFINE_TRACE(lttng_statedump_network_interface,
+       TP_PROTO(struct lttng_session *session,
+               struct net_device *dev, struct in_ifaddr *ifa),
+       TP_ARGS(session, dev, ifa));
+
 #ifdef LTTNG_HAVE_STATEDUMP_CPU_TOPOLOGY
-DEFINE_TRACE(lttng_statedump_cpu_topology);
+LTTNG_DEFINE_TRACE(lttng_statedump_cpu_topology,
+       TP_PROTO(struct lttng_session *session, struct cpuinfo_x86 *c),
+       TP_ARGS(session, c));
 #endif
 
 struct lttng_fd_ctx {
@@ -151,10 +219,19 @@ int lttng_enumerate_block_devices(struct lttng_session *session)
 
                disk_part_iter_init(&piter, disk, DISK_PITER_INCL_PART0);
                while ((part = disk_part_iter_next(&piter))) {
+                       struct block_device bdev;
                        char name_buf[BDEVNAME_SIZE];
-                       char *p;
+                       const char *p;
+
+                       /*
+                        * Create a partial 'struct blockdevice' to use
+                        * 'bdevname()' which is a simple wrapper over
+                        * 'disk_name()' but has the honor to be EXPORT_SYMBOL.
+                        */
+                       bdev.bd_disk = disk;
+                       bdev.bd_part = part;
 
-                       p = wrapper_disk_name(disk, part->partno, name_buf);
+                       p = bdevname(&bdev, name_buf);
                        if (!p) {
                                disk_part_iter_exit(&piter);
                                class_dev_iter_exit(&iter);