Expand on fill_device option since it apparently causes confusion

[fio.git] / io_u.c

diff --git a/io_u.c b/io_u.c
index 8cc348a835fed67a2310c04f84b4608281db1315..1a45706f160556f2c153bf82505370b484d7055e 100644 (file)
--- a/io_u.c
+++ b/io_u.c
@@ -635,31 +635,31 @@ out:
 
 static void __io_u_mark_map(unsigned int *map, unsigned int nr)
 {
-       int index = 0;
+       int idx = 0;
 
        switch (nr) {
        default:
-               index = 6;
+               idx = 6;
                break;
        case 33 ... 64:
-               index = 5;
+               idx = 5;
                break;
        case 17 ... 32:
-               index = 4;
+               idx = 4;
                break;
        case 9 ... 16:
-               index = 3;
+               idx = 3;
                break;
        case 5 ... 8:
-               index = 2;
+               idx = 2;
                break;
        case 1 ... 4:
-               index = 1;
+               idx = 1;
        case 0:
                break;
        }
 
-       map[index]++;
+       map[idx]++;
 }
 
 void io_u_mark_submit(struct thread_data *td, unsigned int nr)
@@ -676,117 +676,117 @@ void io_u_mark_complete(struct thread_data *td, unsigned int nr)
 
 void io_u_mark_depth(struct thread_data *td, unsigned int nr)
 {
-       int index = 0;
+       int idx = 0;
 
        switch (td->cur_depth) {
        default:
-               index = 6;
+               idx = 6;
                break;
        case 32 ... 63:
-               index = 5;
+               idx = 5;
                break;
        case 16 ... 31:
-               index = 4;
+               idx = 4;
                break;
        case 8 ... 15:
-               index = 3;
+               idx = 3;
                break;
        case 4 ... 7:
-               index = 2;
+               idx = 2;
                break;
        case 2 ... 3:
-               index = 1;
+               idx = 1;
        case 1:
                break;
        }
 
-       td->ts.io_u_map[index] += nr;
+       td->ts.io_u_map[idx] += nr;
 }
 
 static void io_u_mark_lat_usec(struct thread_data *td, unsigned long usec)
 {
-       int index = 0;
+       int idx = 0;
 
        assert(usec < 1000);
 
        switch (usec) {
        case 750 ... 999:
-               index = 9;
+               idx = 9;
                break;
        case 500 ... 749:
-               index = 8;
+               idx = 8;
                break;
        case 250 ... 499:
-               index = 7;
+               idx = 7;
                break;
        case 100 ... 249:
-               index = 6;
+               idx = 6;
                break;
        case 50 ... 99:
-               index = 5;
+               idx = 5;
                break;
        case 20 ... 49:
-               index = 4;
+               idx = 4;
                break;
        case 10 ... 19:
-               index = 3;
+               idx = 3;
                break;
        case 4 ... 9:
-               index = 2;
+               idx = 2;
                break;
        case 2 ... 3:
-               index = 1;
+               idx = 1;
        case 0 ... 1:
                break;
        }
 
-       assert(index < FIO_IO_U_LAT_U_NR);
-       td->ts.io_u_lat_u[index]++;
+       assert(idx < FIO_IO_U_LAT_U_NR);
+       td->ts.io_u_lat_u[idx]++;
 }
 
 static void io_u_mark_lat_msec(struct thread_data *td, unsigned long msec)
 {
-       int index = 0;
+       int idx = 0;
 
        switch (msec) {
        default:
-               index = 11;
+               idx = 11;
                break;
        case 1000 ... 1999:
-               index = 10;
+               idx = 10;
                break;
        case 750 ... 999:
-               index = 9;
+               idx = 9;
                break;
        case 500 ... 749:
-               index = 8;
+               idx = 8;
                break;
        case 250 ... 499:
-               index = 7;
+               idx = 7;
                break;
        case 100 ... 249:
-               index = 6;
+               idx = 6;
                break;
        case 50 ... 99:
-               index = 5;
+               idx = 5;
                break;
        case 20 ... 49:
-               index = 4;
+               idx = 4;
                break;
        case 10 ... 19:
-               index = 3;
+               idx = 3;
                break;
        case 4 ... 9:
-               index = 2;
+               idx = 2;
                break;
        case 2 ... 3:
-               index = 1;
+               idx = 1;
        case 0 ... 1:
                break;
        }
 
-       assert(index < FIO_IO_U_LAT_M_NR);
-       td->ts.io_u_lat_m[index]++;
+       assert(idx < FIO_IO_U_LAT_M_NR);
+       td->ts.io_u_lat_m[idx]++;
 }
 
 static void io_u_mark_latency(struct thread_data *td, unsigned long usec)
@@ -1374,6 +1374,8 @@ void io_u_queued(struct thread_data *td, struct io_u *io_u)
 void io_u_fill_buffer(struct thread_data *td, struct io_u *io_u,
                      unsigned int max_bs)
 {
+       io_u->buf_filled_len = 0;
+
        if (!td->o.zero_buffers)
                fill_random_buf(io_u->buf, max_bs);
        else