NFSv4: Add tracepoints for debugging lookup/create operations

[karo-tx-linux.git] / fs / nfs / nfs4trace.h

diff --git a/fs/nfs/nfs4trace.h b/fs/nfs/nfs4trace.h
index 3f124dbcd60a7784bbd497b476f3e180d23cec9c..2646a50a8208defe556782cf37e35cc980161608 100644 (file)
--- a/fs/nfs/nfs4trace.h
+++ b/fs/nfs/nfs4trace.h
@@ -411,6 +411,56 @@ DEFINE_NFS4_LOCK_EVENT(nfs4_lock_reclaim);
 DEFINE_NFS4_LOCK_EVENT(nfs4_lock_expired);
 DEFINE_NFS4_LOCK_EVENT(nfs4_unlock);
 
+DECLARE_EVENT_CLASS(nfs4_lookup_event,
+               TP_PROTO(
+                       const struct inode *dir,
+                       const struct qstr *name,
+                       int error
+               ),
+
+               TP_ARGS(dir, name, error),
+
+               TP_STRUCT__entry(
+                       __field(dev_t, dev)
+                       __field(int, error)
+                       __field(u64, dir)
+                       __string(name, name->name)
+               ),
+
+               TP_fast_assign(
+                       __entry->dev = dir->i_sb->s_dev;
+                       __entry->dir = NFS_FILEID(dir);
+                       __entry->error = error;
+                       __assign_str(name, name->name);
+               ),
+
+               TP_printk(
+                       "error=%d (%s) name=%02x:%02x:%llu/%s",
+                       __entry->error,
+                       show_nfsv4_errors(__entry->error),
+                       MAJOR(__entry->dev), MINOR(__entry->dev),
+                       (unsigned long long)__entry->dir,
+                       __get_str(name)
+               )
+);
+
+#define DEFINE_NFS4_LOOKUP_EVENT(name) \
+       DEFINE_EVENT(nfs4_lookup_event, name, \
+                       TP_PROTO( \
+                               const struct inode *dir, \
+                               const struct qstr *name, \
+                               int error \
+                       ), \
+                       TP_ARGS(dir, name, error))
+
+DEFINE_NFS4_LOOKUP_EVENT(nfs4_lookup);
+DEFINE_NFS4_LOOKUP_EVENT(nfs4_symlink);
+DEFINE_NFS4_LOOKUP_EVENT(nfs4_mkdir);
+DEFINE_NFS4_LOOKUP_EVENT(nfs4_mknod);
+DEFINE_NFS4_LOOKUP_EVENT(nfs4_remove);
+DEFINE_NFS4_LOOKUP_EVENT(nfs4_get_fs_locations);
+DEFINE_NFS4_LOOKUP_EVENT(nfs4_secinfo);
+
 #endif /* _TRACE_NFS4_H */
 
 #undef TRACE_INCLUDE_PATH