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xen-blkback: print stats about persistent grants

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Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Cc: xen-devel@lists.xen.org
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This commit is contained in:
Roger Pau Monne 2013-04-17 20:18:55 +02:00 committed by Konrad Rzeszutek Wilk
parent 41ef2d5678
commit c1a15d08f4
1 changed files with 4 additions and 2 deletions
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6
drivers/block/xen-blkback/blkback.c
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@ -382,10 +382,12 @@ irqreturn_t xen_blkif_be_int(int irq, void *dev_id)
static void print_stats(struct xen_blkif *blkif)
{
pr_info("xen-blkback (%s): oo %3llu | rd %4llu | wr %4llu | f %4llu"
" | ds %4llu\n",
" | ds %4llu | pg: %4u/%4u\n",
current->comm, blkif->st_oo_req,
blkif->st_rd_req, blkif->st_wr_req,
blkif->st_f_req, blkif->st_ds_req);
blkif->st_f_req, blkif->st_ds_req,
blkif->persistent_gnt_c,
max_mapped_grant_pages(blkif->blk_protocol));
blkif->st_print = jiffies + msecs_to_jiffies(10 * 1000);
blkif->st_rd_req = 0;
blkif->st_wr_req = 0;