[PATCH] Fix fileoffset option

[fio.git] / io_u.c

diff --git a/io_u.c b/io_u.c
index 136dc04e7e22d881e1e07f32265ceebc9fbe4122..4750ac600a4272142bc85ccf9333382fcb1a4d28 100644 (file)
--- a/io_u.c
+++ b/io_u.c
@@ -55,7 +55,7 @@ static void mark_random_map(struct thread_data *td, struct io_u *io_u)
                 * If we have a mixed random workload, we may
                 * encounter blocks we already did IO to.
                 */
-               if (!td->o.ddir_nr && !random_map_free(td, f, block))
+               if (!td->o.ddir_nr == 1 && !random_map_free(td, f, block))
                        break;
 
                idx = RAND_MAP_IDX(td, f, block);
@@ -162,10 +162,11 @@ static int get_next_offset(struct thread_data *td, struct io_u *io_u)
                if (get_next_rand_offset(td, f, ddir, &b))
                        return 1;
        } else {
-               if (f->last_pos >= f->real_file_size)
-                       return 1;
-
-               b = f->last_pos / td->o.min_bs[ddir];
+               if (f->last_pos >= f->real_file_size) {
+                       if (!td_random(td) || get_next_rand_offset(td, f, ddir, &b))
+                               return 1;
+               } else
+                       b = (f->last_pos - f->file_offset) / td->o.min_bs[ddir];
        }
 
        io_u->offset = (b * td->o.min_bs[ddir]) + f->file_offset;
@@ -190,6 +191,9 @@ static unsigned int get_next_buflen(struct thread_data *td, struct io_u *io_u)
                        buflen = (buflen + td->o.min_bs[ddir] - 1) & ~(td->o.min_bs[ddir] - 1);
        }
 
+       if (io_u->offset + buflen > io_u->file->real_file_size)
+               buflen = td->o.min_bs[ddir];
+
        return buflen;
 }
 
@@ -341,6 +345,9 @@ static int fill_io_u(struct thread_data *td, struct io_u *io_u)
        if (!io_u->buflen)
                return 1;
 
+       if (io_u->offset + io_u->buflen > io_u->file->real_file_size)
+               return 1;
+
        /*
         * mark entry before potentially trimming io_u
         */