From: Konrad Rzeszutek Wilk Date: Mon, 10 Oct 2011 16:33:21 +0000 (-0400) Subject: xen/blkback: Report VBD_WSECT (wr_sect) properly. X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=5c62cb48602dba95159c81ffeca179d3852e25be;p=deliverable%2Flinux.git xen/blkback: Report VBD_WSECT (wr_sect) properly. We did not increment the amount of sectors written to disk b/c we tested for the == WRITE which is incorrect - as the operations are more of WRITE_FLUSH, WRITE_ODIRECT. This patch fixes it by doing a & WRITE check. CC: stable@kernel.org Reported-by: Andy Burns Suggested-by: Ian Campbell Signed-off-by: Konrad Rzeszutek Wilk --- diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index 184b1335c8e9..c15c559e8662 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -776,7 +776,7 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif, if (operation == READ) blkif->st_rd_sect += preq.nr_sects; - else if (operation == WRITE || operation == WRITE_FLUSH) + else if (operation & WRITE) blkif->st_wr_sect += preq.nr_sects; return 0;