openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

IB/srp: Don't schedule reconnect from srp 

If there is a problem in the connection, the SCSI mid-layer will
eventually call srp_reset_host(), which will call srp_reconnect(), so
we do not need to schedule a call to srp_reconnect_work() from
srp_completion().

Removing this prevents srp_reset_host() from failing if a reconnect
scheduled from srp_completion() is already in progress, which in turn
was causing crashes as both SCSI midlayer and srp_reconnect() were
cancelling commands.

Signed-off-by: Ishai Rabinovitz <ishai@mellanox.co.il>
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Ishai Rabinovitz 2006-09-07 15:00:01 +03:00 committed by Roland Dreier
parent 63b98080da
commit add7afc756
1 changed files with 0 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/infiniband/ulp/srp/ib_srp.c
View File

@ -799,13 +799,6 @@ static void srp_process_rsp(struct srp_target_port *target, struct srp_rsp *rsp)
spin_unlock_irqrestore(target->scsi_host->host_lock, flags);
}
static void srp_reconnect_work(void *target_ptr)
{
struct srp_target_port *target = target_ptr;
srp_reconnect_target(target);
}
static void srp_handle_recv(struct srp_target_port *target, struct ib_wc *wc)
{
struct srp_iu *iu;
@ -858,7 +851,6 @@ static void srp_completion(struct ib_cq *cq, void *target_ptr)
{
struct srp_target_port *target = target_ptr;
struct ib_wc wc;
unsigned long flags;
ib_req_notify_cq(cq, IB_CQ_NEXT_COMP);
while (ib_poll_cq(cq, 1, &wc) > 0) {
@ -866,10 +858,6 @@ static void srp_completion(struct ib_cq *cq, void *target_ptr)
printk(KERN_ERR PFX "failed %s status %d\n",
wc.wr_id & SRP_OP_RECV ? "receive" : "send",
wc.status);
spin_lock_irqsave(target->scsi_host->host_lock, flags);
if (target->state == SRP_TARGET_LIVE)
schedule_work(&target->work);
spin_unlock_irqrestore(target->scsi_host->host_lock, flags);
break;
}
@ -1705,8 +1693,6 @@ static ssize_t srp_create_target(struct class_device *class_dev,
target->scsi_host = target_host;
target->srp_host = host;
INIT_WORK(&target->work, srp_reconnect_work, target);
INIT_LIST_HEAD(&target->free_reqs);
INIT_LIST_HEAD(&target->req_queue);
for (i = 0; i < SRP_SQ_SIZE; ++i) {