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| author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2011-10-10 12:33:21 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-11-11 09:37:07 -0800 |
| commit | 9ad93ba528bf5555a96ef64b7ec1af398277ad52 (patch) | |
| tree | fab33a1ec9da605fe2ee1541da5dbda51908063c /drivers/block | |
| parent | f53881e6463124c910b17a5ea722a5cf5ab67fb3 (diff) | |
| download | lwn-9ad93ba528bf5555a96ef64b7ec1af398277ad52.tar.gz lwn-9ad93ba528bf5555a96ef64b7ec1af398277ad52.zip | |
xen/blkback: Report VBD_WSECT (wr_sect) properly.
commit 5c62cb48602dba95159c81ffeca179d3852e25be 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>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/xen-blkback/blkback.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index 5cf2993a8338..54139d0f5fec 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -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; |