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[SCSI] zfcp: Acquire qdio_stat_lock when reading the queue utilization
authorChristof Schmitt <christof.schmitt@de.ibm.com>
Mon, 13 Jul 2009 13:06:03 +0000 (15:06 +0200)
committerJames Bottomley <James.Bottomley@HansenPartnership.com>
Thu, 30 Jul 2009 13:49:54 +0000 (08:49 -0500)
commitacf7b86150701de105aa8307b4b3f9dc533c45bb
tree3478d074c3a013d6c256d9c3098b6451a8a38264tree | snapshot (tar.gz zip)
parentdfb3cf00e402686f671db697adbd8b9f4c219268commit | diff
[SCSI] zfcp: Acquire qdio_stat_lock when reading the queue utilization

req_q_util is not atomic, so the qdio_stat_lock must be held when
reading this variable.

Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
drivers/s390/scsi/zfcp_sysfs.c diff | blob | blame | history