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authorStefan Haberland <stefan.haberland@de.ibm.com>2008-12-25 13:38:54 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2008-12-25 13:39:02 +0100
commit0cd4bd4754d51bdc8f9cd880c29910d0d52337bb (patch)
tree2f94085835c0a92a18c6520356fddc0875432707 /drivers/s390/block
parent50afd20f8c3ce23994a21c389e7250e54a93bf55 (diff)
downloadop-kernel-dev-0cd4bd4754d51bdc8f9cd880c29910d0d52337bb.zip
op-kernel-dev-0cd4bd4754d51bdc8f9cd880c29910d0d52337bb.tar.gz
[S390] dasd: call cleanup_cqr with request_queue_lock
__dasd_cleanup_cqr should be called with request_queue_lock held and __dasd_block_process_erp with queue_lock Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/block')
-rw-r--r--drivers/s390/block/dasd.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 363bd13..570ae59 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -1898,15 +1898,19 @@ restart_cb:
wait_event(dasd_flush_wq, (cqr->status < DASD_CQR_QUEUED));
/* Process finished ERP request. */
if (cqr->refers) {
+ spin_lock_bh(&block->queue_lock);
__dasd_block_process_erp(block, cqr);
+ spin_unlock_bh(&block->queue_lock);
/* restart list_for_xx loop since dasd_process_erp
* might remove multiple elements */
goto restart_cb;
}
/* call the callback function */
+ spin_lock_irq(&block->request_queue_lock);
cqr->endclk = get_clock();
list_del_init(&cqr->blocklist);
__dasd_cleanup_cqr(cqr);
+ spin_unlock_irq(&block->request_queue_lock);
}
return rc;
}
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