This is a note to let you know that I've just added the patch titled
IB/srp: Fix reconnection failure handling
to the 4.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ib-srp-fix-reconnection-failure-handling.patch
and it can be found in the queue-4.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From a44074f14ba1ea0747ea737026eb929b81993dc3 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bart.vanassche@xxxxxxxxxxx>
Date: Mon, 18 May 2015 13:24:17 +0200
Subject: IB/srp: Fix reconnection failure handling
From: Bart Van Assche <bart.vanassche@xxxxxxxxxxx>
commit a44074f14ba1ea0747ea737026eb929b81993dc3 upstream.
Although it is possible to let SRP I/O continue if a reconnect
results in a reduction of the number of channels, the current
code does not handle this scenario correctly. Instead of making
the reconnect code more complex, consider this as a reconnection
failure.
Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxxxxxx>
Cc: Sagi Grimberg <sagig@xxxxxxxxxxxx>
Cc: Sebastian Parschauer <sebastian.riemer@xxxxxxxxxxxxxxxx>
Signed-off-by: Doug Ledford <dledford@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/infiniband/ulp/srp/ib_srp.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -1243,11 +1243,8 @@ static int srp_rport_reconnect(struct sr
for (i = 0; i < target->ch_count; i++) {
ch = &target->ch[i];
- if (ret || !ch->target) {
- if (i > 1)
- ret = 0;
+ if (ret || !ch->target)
break;
- }
ret = srp_connect_ch(ch, multich);
multich = true;
}
Patches currently in stable-queue which might be from bart.vanassche@xxxxxxxxxxx are
queue-4.1/ib-srp-fix-a-connection-setup-race.patch
queue-4.1/scsi_transport_srp-introduce-srp_wait_for_queuecommand.patch
queue-4.1/ib-srp-fix-connection-state-tracking.patch
queue-4.1/ib-srp-fix-reconnection-failure-handling.patch
queue-4.1/scsi_transport_srp-fix-a-race-condition.patch
queue-4.1/ib-srp-remove-an-extraneous-scsi_host_put-from-an-error-path.patch
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