Don't allow pre_read on IO engines that cannot seek

[fio.git] / fio.h

diff --git a/fio.h b/fio.h
index 21d49a6a7e6bed719eb01d601902e16ea691a37e..b19101c20a4924892610bd78b0f6d645f3b93e9b 100644 (file)
--- a/fio.h
+++ b/fio.h
@@ -111,6 +111,13 @@ struct thread_stat {
        unsigned long long io_bytes[2];
        unsigned long runtime[2];
        unsigned long total_run_time;
+
+       /*
+        * IO Error related stats
+        */
+       unsigned continue_on_error;
+       unsigned long total_err_count;
+       int first_error;
 };
 
 struct bssplit {
@@ -185,6 +192,7 @@ struct thread_options {
        unsigned int thinktime_spin;
        unsigned int thinktime_blocks;
        unsigned int fsync_blocks;
+       unsigned int fdatasync_blocks;
        unsigned int start_delay;
        unsigned long long timeout;
        unsigned long long ramp_time;
@@ -194,6 +202,7 @@ struct thread_options {
        unsigned long long zone_size;
        unsigned long long zone_skip;
        enum fio_memtype mem_type;
+       unsigned int mem_align;
 
        unsigned int stonewall;
        unsigned int new_group;
@@ -241,6 +250,11 @@ struct thread_options {
         */
        unsigned int cpuload;
        unsigned int cpucycle;
+
+       /*
+        * I/O Error handling
+        */
+       unsigned int continue_on_error;
 };
 
 #define FIO_VERROR_SIZE        128
@@ -369,6 +383,12 @@ struct thread_data {
         * For generating file sizes
         */
        os_random_state_t file_size_state;
+
+       /*
+        * Error counts
+        */
+       unsigned int total_err_count;
+       int first_error;
 };
 
 /*
@@ -386,10 +406,13 @@ enum {
                        break;                                          \
                int e = (err);                                          \
                (td)->error = e;                                        \
-               snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg));       \
+               if (!(td)->first_error)                                 \
+                       snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg));               \
        } while (0)
 
 
+#define td_clear_error(td)             \
+       (td)->error = 0;
 #define td_verror(td, err, func)       \
        __td_verror((td), (err), strerror((err)), (func))
 #define td_vmsg(td, err, msg, func)    \
@@ -425,6 +448,15 @@ static inline void fio_ro_check(struct thread_data *td, struct io_u *io_u)
 
 #define MAX_JOBS       (1024)
 
+#define td_non_fatal_error(e)  ((e) == EIO || (e) == EILSEQ)
+
+static inline void update_error_count(struct thread_data *td, int err)
+{
+       td->total_err_count++;
+       if (td->total_err_count == 1)
+               td->first_error = err;
+}
+
 static inline int should_fsync(struct thread_data *td)
 {
        if (td->last_was_sync)
@@ -624,4 +656,9 @@ static inline int should_check_rate(struct thread_data *td,
        return ret;
 }
 
+static inline int is_power_of_2(unsigned int val)
+{
+       return (val != 0 && ((val & (val - 1)) == 0));
+}
+
 #endif