Merge branch 'master' of ssh://git.kernel.dk/data/git/fio

[fio.git] / libfio.c

diff --git a/libfio.c b/libfio.c
index 9245688a029b7771c300df0c923ce680f426e04b..57ce725be06757df2358e45bcabaaf4cff619573 100644 (file)
--- a/libfio.c
+++ b/libfio.c
@@ -58,6 +58,7 @@ static const char *fio_os_strings[os_nr] = {
        "Solaris",
        "Windows",
        "Android",
+       "DragonFly",
 };
 
 static const char *fio_arch_strings[arch_nr] = {
@@ -108,8 +109,10 @@ void clear_io_state(struct thread_data *td)
        reset_io_counters(td);
 
        close_files(td);
-       for_each_file(td, f, i)
+       for_each_file(td, f, i) {
                fio_file_clear_done(f);
+               f->file_offset = get_start_offset(td, f);
+       }
 
        /*
         * Set the same seed to get repeatable runs
@@ -187,6 +190,13 @@ void td_restore_runstate(struct thread_data *td, int old_state)
        td_set_runstate(td, old_state);
 }
 
+void fio_mark_td_terminate(struct thread_data *td)
+{
+       fio_gettime(&td->terminate_time, NULL);
+       write_barrier();
+       td->terminate = 1;
+}
+
 void fio_terminate_threads(int group_id)
 {
        struct thread_data *td;
@@ -203,9 +213,8 @@ void fio_terminate_threads(int group_id)
                        if (td->terminate)
                                continue;
 
-                       td->terminate = 1;
+                       fio_mark_td_terminate(td);
                        td->o.start_delay = 0;
-                       fio_gettime(&td->terminate_time, NULL);
 
                        /*
                         * if the thread is running, just let it exit
@@ -291,6 +300,20 @@ int initialize_fio(char *envp[])
 {
        long ps;
 
+       /*
+        * We need these to be properly 64-bit aligned, otherwise we
+        * can run into problems on archs that fault on unaligned fp
+        * access (ARM).
+        */
+       compiletime_assert((offsetof(struct thread_stat, percentile_list) % 8) == 0, "stat percentile_list");
+       compiletime_assert((offsetof(struct thread_stat, total_run_time) % 8) == 0, "total_run_time");
+       compiletime_assert((offsetof(struct thread_stat, total_err_count) % 8) == 0, "total_err_count");
+       compiletime_assert((offsetof(struct thread_stat, latency_percentile) % 8) == 0, "stat latency_percentile");
+       compiletime_assert((offsetof(struct thread_options_pack, zipf_theta) % 8) == 0, "zipf_theta");
+       compiletime_assert((offsetof(struct thread_options_pack, pareto_h) % 8) == 0, "pareto_h");
+       compiletime_assert((offsetof(struct thread_options_pack, percentile_list) % 8) == 0, "percentile_list");
+       compiletime_assert((offsetof(struct thread_options_pack, latency_percentile) % 8) == 0, "latency_percentile");
+
        if (endian_check()) {
                log_err("fio: endianness settings appear wrong.\n");
                log_err("fio: please report this to fio@vger.kernel.org\n");