Add nr parameter to file_service_type

[fio.git] / io_u.c

diff --git a/io_u.c b/io_u.c
index 0c604dff8640cde9ae25b000b5f33124c0d9c51e..c9a344f27aff5ebcb4a405a34e2da72d0b0b0d4a 100644 (file)
--- a/io_u.c
+++ b/io_u.c
@@ -107,7 +107,7 @@ static int get_next_offset(struct thread_data *td, struct io_u *io_u)
 
        if (td_random(td)) {
                unsigned long long max_blocks = f->file_size / td->min_bs[ddir];
-               int loops = 2;
+               int loops = 5;
 
                do {
                        r = os_random_long(&td->random_state);
@@ -335,9 +335,9 @@ static struct fio_file *get_next_file_rand(struct thread_data *td)
        do {
                long r = os_random_long(&td->next_file_state);
 
-               fileno = (unsigned int) ((double) (td->open_files - 1) * r / (RAND_MAX + 1.0));
+               fileno = (unsigned int) ((double) (td->open_files * r) / (RAND_MAX + 1.0));
                f = &td->files[fileno];
-               if (f->fd != -1)
+               if (f->open)
                        return f;
        } while (1);
 }
@@ -357,7 +357,7 @@ static struct fio_file *get_next_file_rr(struct thread_data *td)
                if (td->next_file >= td->open_files)
                        td->next_file = 0;
 
-               if (f->fd != -1)
+               if (f->open)
                        break;
 
                f = NULL;
@@ -368,13 +368,23 @@ static struct fio_file *get_next_file_rr(struct thread_data *td)
 
 static struct fio_file *get_next_file(struct thread_data *td)
 {
+       struct fio_file *f;
+
        if (!td->nr_open_files)
                return NULL;
 
+       f = td->file_service_file;
+       if (f && f->open && td->file_service_left--)
+               return f;
+
        if (td->file_service_type == FIO_FSERVICE_RR)
-               return get_next_file_rr(td);
+               f = get_next_file_rr(td);
        else
-               return get_next_file_rand(td);
+               f = get_next_file_rand(td);
+
+       td->file_service_file = f;
+       td->file_service_left = td->file_service_nr - 1;
+       return f;
 }
 
 struct io_u *__get_io_u(struct thread_data *td)
@@ -448,8 +458,14 @@ struct io_u *get_io_u(struct thread_data *td)
                 * if we need to open a new file
                 */
                if (td->nr_open_files < td->nr_files &&
-                   td->open_files != td->nr_files)
-                       reopen_file(td, f);
+                   td->open_files != td->nr_files) {
+                       int ret = td_io_open_file(td, f);
+
+                       if (ret) {
+                               put_io_u(td, io_u);
+                               return NULL;
+                       }
+               }
        } while (1);
 
        if (td->zone_bytes >= td->zone_size) {