commit a85066dcaf01cd3611b4c7c987357650cd7f08a6
author Jens Axboe <axboe@fb.com> Mon Sep 29 21:23:51 2014 -0600
committer Mohamad Ayyash <mkayyash@google.com> Fri Mar 06 17:57:19 2015 -0800
tree 6cf3aec53c0b8639523e238a33de9319dd48df51
parent 8cf2b451f43d77fc68d0511a5f70ca6f6d3196e2

filesetup: fix a bug where we overwrite the set size

For the null io engine, we don't set file sizes. And we should
not overwrite a potentially legitimate o->size, if total_size
is zero.

Signed-off-by: Jens Axboe <axboe@fb.com>

filesetup.c

diff --git a/filesetup.c b/filesetup.c
index 29a76c0..43146ba 100644
--- a/filesetup.c
+++ b/filesetup.c
@@ -898,7 +898,7 @@
 		}
 	}
 
-	if (!o->size || o->size > total_size)
+	if (!o->size || (total_size && o->size > total_size))
 		o->size = total_size;
 
 	if (o->size < td_min_bs(td)) {