Patch "IB/srpt: Fix abort handling" has been added to the 4.9-stable tree
Subsystems (3)
This is a note to let you know that I've just added the patch titled
IB/srpt: Fix abort handling
to the 4.9-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-srpt-fix-abort-handling.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.
Quoted 1 line
From foo@baz Mon Apr 9 17:09:24 CEST 2018
From: Bart Van Assche <[email protected]>
Date: Thu, 4 May 2017 15:50:53 -0700
Subject: IB/srpt: Fix abort handling
From: Bart Van Assche <[email protected]>
[ Upstream commit 55d694275f41a1c0eef4ef49044ff29bc3999490 ]
Let the target core check the CMD_T_ABORTED flag instead of the SRP target driver. Hence remove the transport_check_aborted_status() call. Since state == SRPT_STATE_CMD_RSP_SENT is something that really should not happen, do not try to recover if srpt_queue_response() is called for an I/O context that is in that state. This patch is a bug fix because the srpt_abort_cmd() call is misplaced - if that function is called from srpt_queue_response() it should either be called before the command state is changed or after the response has been sent.
--- drivers/infiniband/ulp/srpt/ib_srpt.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)
drivers/infiniband/ulp/srpt/ib_srpt.c +1 -5
@@ -2292,12 +2292,8 @@ static void srpt_queue_response(struct s }spin_unlock_irqrestore (&ioctx->spinlock, flags); -if (unlikely (transport_check_aborted_status (&ioctx->cmd, false) - ||WARN_ON_ONCE (state ==SRPT_STATE_CMD_RSP_SENT ))) { -atomic_inc (&ch->req_lim_delta); -srpt_abort_cmd (ioctx); +if (unlikely (WARN_ON_ONCE (state ==SRPT_STATE_CMD_RSP_SENT )))return ; - }/* For read commands, transfer the data to the initiator. */ if (ioctx->cmd.data_direction == DMA_FROM_DEVICE &&
Patches currently in stable-queue which might be from [email protected] are
queue-4.9/ib-srpt-avoid-that-aborting-a-command-triggers-a-kernel-warning.patch queue-4.9/ib-srpt-fix-abort-handling.patch