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authorStefan Raspl2008-10-01 12:42:14 +0200
committerJames Bottomley2008-10-03 12:11:52 -0500
commit2450d3e7b8604d0abb042817f2502cb7ee0b782f (patch)
treeb7f319f299fd0ec62e9d6840158c070d9bce0df7 /drivers/s390/scsi/zfcp_qdio.c
parent7ae628d9d21a088b4a2d26a9d39c29c0acd2d03b (diff)
[SCSI] zfcp: add queue_full sysfs attribute
Adds a new sysfs attribute queue_full for adapters that records the number of incidents where a requests could not be submitted due to insufficient free space on the request queue. Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com> Signed-off-by: Martin Peschke <mp3@de.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/s390/scsi/zfcp_qdio.c')
-rw-r--r--drivers/s390/scsi/zfcp_qdio.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c
index 69d632d851d9..cc49eaa9281f 100644
--- a/drivers/s390/scsi/zfcp_qdio.c
+++ b/drivers/s390/scsi/zfcp_qdio.c
@@ -282,6 +282,7 @@ static int zfcp_qdio_fill_sbals(struct zfcp_fsf_req *fsf_req,
addr += length, remaining -= length) {
sbale = zfcp_qdio_sbale_next(fsf_req, sbtype);
if (!sbale) {
+ atomic_inc(&fsf_req->adapter->qdio_outb_full);
zfcp_qdio_undo_sbals(fsf_req);
return -EINVAL;
}