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| author | Mike Anderson <andmike@us.ibm.com> | 2005-06-16 11:14:33 -0700 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.(none)> | 2005-07-30 11:13:01 -0500 |
| commit | 82f29467a025f6a2192d281e97fca0be46e905cc (patch) | |
| tree | 5cf356ece53caf2936ca85803676b326094f7c38 /include/scsi | |
| parent | d2c9d9eafa03dbd08a8a439e6c5addb8b1f03b9b (diff) | |
| download | linux-82f29467a025f6a2192d281e97fca0be46e905cc.tar.gz linux-82f29467a025f6a2192d281e97fca0be46e905cc.tar.bz2 linux-82f29467a025f6a2192d281e97fca0be46e905cc.zip | |
[SCSI] host state model update: mediate host add/remove race
Add support to not allow additions to a host when it is being removed.
Signed-off-by: Mike Anderson <andmike@us.ibm.com>
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 0b1e275b2699..1ea5b51d1749 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -650,6 +650,15 @@ static inline struct device *scsi_get_device(struct Scsi_Host *shost) return shost->shost_gendev.parent; } +/** + * scsi_host_scan_allowed - Is scanning of this host allowed + * @shost: Pointer to Scsi_Host. + **/ +static inline int scsi_host_scan_allowed(struct Scsi_Host *shost) +{ + return shost->shost_state == SHOST_RUNNING; +} + extern void scsi_unblock_requests(struct Scsi_Host *); extern void scsi_block_requests(struct Scsi_Host *); |