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| author | James Bottomley <James.Bottomley@steeleye.com> | 2005-09-18 15:05:20 -0500 |
|---|---|---|
| committer | James Bottomley <jejb@titanic.(none)> | 2005-09-19 09:24:52 -0500 |
| commit | 939647ee308e0ad924e776657704c7bedd498664 (patch) | |
| tree | cfff68b8f65a53e186fd1e7443aa370885ac1ed9 /include/scsi | |
| parent | a64358db1253b35d508a411e80a3ad23b859ec88 (diff) | |
| download | linux-939647ee308e0ad924e776657704c7bedd498664.tar.gz linux-939647ee308e0ad924e776657704c7bedd498664.tar.bz2 linux-939647ee308e0ad924e776657704c7bedd498664.zip | |
[SCSI] fix oops on usb storage device disconnect
We fix the oops by enforcing the host state model. There have also
been two extra states added: SHOST_CANCEL_RECOVERY and
SHOST_DEL_RECOVERY so we can take the model through host removal while
the recovery thread is active.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'include/scsi')
| -rw-r--r-- | include/scsi/scsi_host.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index 916144be208b..540369ff815c 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -439,6 +439,8 @@ enum scsi_host_state { SHOST_CANCEL, SHOST_DEL, SHOST_RECOVERY, + SHOST_CANCEL_RECOVERY, + SHOST_DEL_RECOVERY, }; struct Scsi_Host { @@ -621,6 +623,13 @@ static inline struct Scsi_Host *dev_to_shost(struct device *dev) return container_of(dev, struct Scsi_Host, shost_gendev); } +static inline int scsi_host_in_recovery(struct Scsi_Host *shost) +{ + return shost->shost_state == SHOST_RECOVERY || + shost->shost_state == SHOST_CANCEL_RECOVERY || + shost->shost_state == SHOST_DEL_RECOVERY; +} + extern int scsi_queue_work(struct Scsi_Host *, struct work_struct *); extern void scsi_flush_work(struct Scsi_Host *); |