xen/blkback: Fix up some of the comments.

They had the wrong data or were in the wrong spot.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c
index 5f4284729a3aa41a83f83d5e85449c56a6f890f9..b9bdd9e43ab98997c3bebeaddfc920f11e048c80 100644 (file)
--- a/drivers/block/xen-blkback/blkback.c
+++ b/drivers/block/xen-blkback/blkback.c
@@ -603,7 +603,7 @@ static int dispatch_rw_block_io(struct blkif_st *blkif,
        if (xen_blkbk_map(req, pending_req, seg))
                goto fail_flush;
 
-       /* This corresponding blkif_put is done in __end_block_io_op */
+       /* This corresponding xen_blkif_put is done in __end_block_io_op */
        xen_blkif_get(blkif);
 
        for (i = 0; i < nseg; i++) {
@@ -626,7 +626,7 @@ static int dispatch_rw_block_io(struct blkif_st *blkif,
                preq.sector_number += seg[i].nsec;
        }
 
-       /* This will be hit if the operation was a barrier. */
+       /* This will be hit if the operation was a flush. */
        if (!bio) {
                BUG_ON(operation != WRITE_FLUSH);
                bio = biolist[nbio++] = bio_alloc(GFP_KERNEL, 0);
@@ -650,8 +650,8 @@ static int dispatch_rw_block_io(struct blkif_st *blkif,
        for (i = 0; i < nbio; i++)
                submit_bio(operation, biolist[i]);
 
-       blk_finish_plug(&plug);
        /* Let the I/Os go.. */
+       blk_finish_plug(&plug);
 
        if (operation == READ)
                blkif->st_rd_sect += preq.nr_sects;