fc_block_scsi_eh
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## Name

fc_block_scsi_eh — Block SCSI eh thread for blocked fc_rport

## Synopsis

`int fc_block_scsi_eh (` | struct scsi_cmnd * cmnd`)`;

## Arguments

`cmnd`

  SCSI command that scsi_eh is trying to recover

## Description

This routine can be called from a FC LLD scsi_eh callback. It blocks the scsi_eh thread until the fc_rport leaves the FC_PORTSTATE_BLOCKED, or the fast_io_fail_tmo fires. This is necessary to avoid the scsi_eh failing recovery actions for blocked rports which would lead to offlined SCSI devices.

## Returns

0 if the fc_rport left the state FC_PORTSTATE_BLOCKED. FAST_IO_FAIL if the fast_io_fail_tmo fired, this should be passed back to scsi_eh.

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