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scsi: RDMA/srpt: Fix a credit leak for aborted commands

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commit 40ca8757291ca7a8775498112d320205b2a2e571 upstream.

Make sure that the next time a response is sent to the initiator that the
credit it had allocated for the aborted request gets freed.

Cc: Doug Ledford <dledford@redhat.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Nicholas Bellinger <nab@linux-iscsi.org>
Cc: Mike Christie <mchristi@redhat.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Christoph Hellwig <hch@lst.de>
Fixes: 131e6abc674e ("target: Add TFO->abort_task for aborted task resources release") # v3.15
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bart Van Assche 2019-01-25 10:34:51 -08:00 committed by Greg Kroah-Hartman
parent d253ff1a59
commit ff7ec1b8e6
1 changed files with 11 additions and 0 deletions
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11
drivers/infiniband/ulp/srpt/ib_srpt.c
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@ -2381,8 +2381,19 @@ static void srpt_queue_tm_rsp(struct se_cmd *cmd)
srpt_queue_response(cmd);
}
/*
* This function is called for aborted commands if no response is sent to the
* initiator. Make sure that the credits freed by aborting a command are
* returned to the initiator the next time a response is sent by incrementing
* ch->req_lim_delta.
*/
static void srpt_aborted_task(struct se_cmd *cmd)
{
struct srpt_send_ioctx *ioctx = container_of(cmd,
struct srpt_send_ioctx, cmd);
struct srpt_rdma_ch *ch = ioctx->ch;
atomic_inc(&ch->req_lim_delta);
}
static int srpt_queue_status(struct se_cmd *cmd)