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Subject[PATCH 1/1] xen-blkback: Change statistics counter types to unsigned
Date
These values shouldn't be negative, but after an overflow their value
can turn into negative, if they are signed. xentop can show bogus
values in this case.

Signed-off-by: Zoltan Kiss <zoltan.kiss@citrix.com>
Reported-by: Ichiro Ogino <ichiro.ogino@citrix.co.jp>
---
drivers/block/xen-blkback/common.h | 14 +++++++-------
1 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h
index 6072390..72d09ac 100644
--- a/drivers/block/xen-blkback/common.h
+++ b/drivers/block/xen-blkback/common.h
@@ -208,13 +208,13 @@ struct xen_blkif {

/* statistics */
unsigned long st_print;
- int st_rd_req;
- int st_wr_req;
- int st_oo_req;
- int st_f_req;
- int st_ds_req;
- int st_rd_sect;
- int st_wr_sect;
+ unsigned long long st_rd_req;
+ unsigned long long st_wr_req;
+ unsigned long long st_oo_req;
+ unsigned long long st_f_req;
+ unsigned long long st_ds_req;
+ unsigned long long st_rd_sect;
+ unsigned long long st_wr_sect;

wait_queue_head_t waiting_to_free;
};
--
1.7.0.4


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