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IB/srpt: Inline srpt_get_cmd_state() 

It is not necessary to obtain ioctx->spinlock when reading the ioctx
state. Since after removal of this locking only a single line remains,
inline the srpt_get_cmd_state() function.

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Bart Van Assche 2018-01-08 11:00:50 -08:00 committed by Doug Ledford
parent b14cb74479
commit dd3bec8655
1 changed files with 3 additions and 20 deletions
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23
drivers/infiniband/ulp/srpt/ib_srpt.c
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@ -752,23 +752,6 @@ static void srpt_free_ioctx_ring(struct srpt_ioctx **ioctx_ring,
kfree(ioctx_ring);
}
/**
* srpt_get_cmd_state - get the state of a SCSI command
* @ioctx: Send I/O context.
*/
static enum srpt_command_state srpt_get_cmd_state(struct srpt_send_ioctx *ioctx)
{
enum srpt_command_state state;
unsigned long flags;
BUG_ON(!ioctx);
spin_lock_irqsave(&ioctx->spinlock, flags);
state = ioctx->state;
spin_unlock_irqrestore(&ioctx->spinlock, flags);
return state;
}
/**
* srpt_set_cmd_state - set the state of a SCSI command
* @ioctx: Send I/O context.
@ -1303,7 +1286,7 @@ static void srpt_rdma_read_done(struct ib_cq *cq, struct ib_wc *wc)
target_execute_cmd(&ioctx->cmd);
else
pr_err("%s[%d]: wrong state = %d\n", __func__,
__LINE__, srpt_get_cmd_state(ioctx));
__LINE__, ioctx->state);
}
/**
@ -2372,7 +2355,7 @@ static int srpt_write_pending_status(struct se_cmd *se_cmd)
struct srpt_send_ioctx *ioctx;
ioctx = container_of(se_cmd, struct srpt_send_ioctx, cmd);
return srpt_get_cmd_state(ioctx) == SRPT_STATE_NEED_DATA;
return ioctx->state == SRPT_STATE_NEED_DATA;
}
/*
@ -2951,7 +2934,7 @@ static int srpt_get_tcm_cmd_state(struct se_cmd *se_cmd)
struct srpt_send_ioctx *ioctx;
ioctx = container_of(se_cmd, struct srpt_send_ioctx, cmd);
return srpt_get_cmd_state(ioctx);
return ioctx->state;
}
static int srpt_parse_guid(u64 *guid, const char *name)