other versions
| FC_BLOCK_SCSI_EH(9) | SCSI mid layer | FC_BLOCK_SCSI_EH(9) |
NAME¶
fc_block_scsi_eh - Block SCSI eh thread for blocked fc_rport
SYNOPSIS¶
int fc_block_scsi_eh(struct scsi_cmnd * cmnd);
ARGUMENTS¶
struct scsi_cmnd * 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.
RETURN¶
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.
AUTHORS¶
James Bottomley <James.Bottomley@hansenpartnership.com>
Author.
Rob Landley <rob@landley.net>
Author.
COPYRIGHT¶
| September 2017 | Kernel Hackers Manual 4.12 |