trace.h: support nested performance tracing

diff --git a/dir.c b/dir.c
index 32f5f7275981ea1bd9a4be2fe87f5f7f47ffb571..18b57b94ccd5d97744b33d607fa6924dda3fd371 100644 (file)
--- a/dir.c
+++ b/dir.c
@@ -2263,10 +2263,13 @@ int read_directory(struct dir_struct *dir, struct index_state *istate,
                   const char *path, int len, const struct pathspec *pathspec)
 {
        struct untracked_cache_dir *untracked;
-       uint64_t start = getnanotime();
 
-       if (has_symlink_leading_path(path, len))
+       trace_performance_enter();
+
+       if (has_symlink_leading_path(path, len)) {
+               trace_performance_leave("read directory %.*s", len, path);
                return dir->nr;
+       }
 
        untracked = validate_untracked_cache(dir, len, pathspec);
        if (!untracked)
@@ -2302,7 +2305,7 @@ int read_directory(struct dir_struct *dir, struct index_state *istate,
                dir->nr = i;
        }
 
-       trace_performance_since(start, "read directory %.*s", len, path);
+       trace_performance_leave("read directory %.*s", len, path);
        if (dir->untracked) {
                static int force_untracked_cache = -1;
                static struct trace_key trace_untracked_stats = TRACE_KEY_INIT(UNTRACKED_STATS);