Honor random/zero/compressible settings for filling an initial file
Right now we only do that for when the job writes, do it for the
initial setup as well. Otherwise you just get zero filled files
initially, which might not be what you want.
Also fixes a bug with compression if compress_chunk isn't set.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/io_u.c b/io_u.c
index d03049e..2cf2b8d 100644
--- a/io_u.c
+++ b/io_u.c
@@ -1602,14 +1602,9 @@
}
}
-/*
- * "randomly" fill the buffer contents
- */
-void io_u_fill_buffer(struct thread_data *td, struct io_u *io_u,
- unsigned int min_write, unsigned int max_bs)
+void fill_io_buffer(struct thread_data *td, void *buf, unsigned int min_write,
+ unsigned int max_bs)
{
- io_u->buf_filled_len = 0;
-
if (!td->o.zero_buffers) {
unsigned int perc = td->o.compress_percentage;
@@ -1617,10 +1612,23 @@
unsigned int seg = min_write;
seg = min(min_write, td->o.compress_chunk);
- fill_random_buf_percentage(&td->buf_state, io_u->buf,
+ if (!seg)
+ seg = min_write;
+
+ fill_random_buf_percentage(&td->buf_state, buf,
perc, seg, max_bs);
} else
- fill_random_buf(&td->buf_state, io_u->buf, max_bs);
+ fill_random_buf(&td->buf_state, buf, max_bs);
} else
- memset(io_u->buf, 0, max_bs);
+ memset(buf, 0, max_bs);
+}
+
+/*
+ * "randomly" fill the buffer contents
+ */
+void io_u_fill_buffer(struct thread_data *td, struct io_u *io_u,
+ unsigned int min_write, unsigned int max_bs)
+{
+ io_u->buf_filled_len = 0;
+ fill_io_buffer(td, io_u->buf, min_write, max_bs);
}