]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
[SCSI] zfcp: Hold queue lock when checking port handle for ELS command
authorChristof Schmitt <christof.schmitt@de.ibm.com>
Thu, 20 Dec 2007 11:30:25 +0000 (12:30 +0100)
committerJames Bottomley <James.Bottomley@HansenPartnership.com>
Sat, 12 Jan 2008 00:29:05 +0000 (18:29 -0600)
commit3f0ca62add34010241db682e63bb68ba765bf4a9
tree941218ee69ebe014cbd913e3ac33861b976415f9
parent951f746fece2e24a26853b3872d16e9013b6fe0b
[SCSI] zfcp: Hold queue lock when checking port handle for ELS command

We need to hold the queue-lock when checking whether we still have a valid port
handle for the ELS command, i.e whether we can issue this request for this
port. If the error recovery is about to close this port, then it competes for
the queue-lock. If the close request issued by the error recovery wins, then it
is guaranteed that this port has been blocked for other requests.

Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Martin Peschke <mp3@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
drivers/s390/scsi/zfcp_erp.c
drivers/s390/scsi/zfcp_fsf.c