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xen/blkback: Report VBD_WSECT (wr_sect) properly.

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commit 5c62cb4860 upstream.

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.

Reported-by: Andy Burns <xen.lists@burns.me.uk>
Suggested-by: Ian Campbell <Ian.Campbell@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Konrad Rzeszutek Wilk 2011-10-10 12:33:21 -04:00 committed by Greg Kroah-Hartman
parent f53881e646
commit 9ad93ba528
1 changed files with 1 additions and 1 deletions
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2
drivers/block/xen-blkback/blkback.c
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@ -667,7 +667,7 @@ 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;