diff options
Diffstat (limited to 'drivers/scsi/scsi_error.c')
| -rw-r--r-- | drivers/scsi/scsi_error.c | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index f869108fd969..b6e8730e049e 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -282,11 +282,20 @@ static void scsi_eh_inc_host_failed(struct rcu_head *head) { struct scsi_cmnd *scmd = container_of(head, typeof(*scmd), rcu); struct Scsi_Host *shost = scmd->device->host; - unsigned int busy = scsi_host_busy(shost); + unsigned int busy; unsigned long flags; spin_lock_irqsave(shost->host_lock, flags); shost->host_failed++; + spin_unlock_irqrestore(shost->host_lock, flags); + /* + * The counting of busy requests needs to occur after adding to + * host_failed or after the lock acquire for adding to host_failed + * to prevent a race with host unbusy and missing an eh wakeup. + */ + busy = scsi_host_busy(shost); + + spin_lock_irqsave(shost->host_lock, flags); scsi_eh_wakeup(shost, busy); spin_unlock_irqrestore(shost->host_lock, flags); } @@ -1063,6 +1072,9 @@ void scsi_eh_prep_cmnd(struct scsi_cmnd *scmd, struct scsi_eh_save *ses, unsigned char *cmnd, int cmnd_size, unsigned sense_bytes) { struct scsi_device *sdev = scmd->device; +#ifdef CONFIG_BLK_INLINE_ENCRYPTION + struct request *rq = scsi_cmd_to_rq(scmd); +#endif /* * We need saved copies of a number of fields - this is because @@ -1115,6 +1127,18 @@ void scsi_eh_prep_cmnd(struct scsi_cmnd *scmd, struct scsi_eh_save *ses, (sdev->lun << 5 & 0xe0); /* + * Encryption must be disabled for the commands submitted by the error handler. + * Hence, clear the encryption context information. + */ +#ifdef CONFIG_BLK_INLINE_ENCRYPTION + ses->rq_crypt_keyslot = rq->crypt_keyslot; + ses->rq_crypt_ctx = rq->crypt_ctx; + + rq->crypt_keyslot = NULL; + rq->crypt_ctx = NULL; +#endif + + /* * Zero the sense buffer. The scsi spec mandates that any * untransferred sense data should be interpreted as being zero. */ @@ -1131,6 +1155,10 @@ EXPORT_SYMBOL(scsi_eh_prep_cmnd); */ void scsi_eh_restore_cmnd(struct scsi_cmnd* scmd, struct scsi_eh_save *ses) { +#ifdef CONFIG_BLK_INLINE_ENCRYPTION + struct request *rq = scsi_cmd_to_rq(scmd); +#endif + /* * Restore original data */ @@ -1143,6 +1171,11 @@ void scsi_eh_restore_cmnd(struct scsi_cmnd* scmd, struct scsi_eh_save *ses) scmd->underflow = ses->underflow; scmd->prot_op = ses->prot_op; scmd->eh_eflags = ses->eh_eflags; + +#ifdef CONFIG_BLK_INLINE_ENCRYPTION + rq->crypt_keyslot = ses->rq_crypt_keyslot; + rq->crypt_ctx = ses->rq_crypt_ctx; +#endif } EXPORT_SYMBOL(scsi_eh_restore_cmnd); |