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| author | Chandra Seetharaman <sekharan@us.ibm.com> | 2009-10-21 18:22:46 +0200 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2009-12-04 19:00:46 +0100 |
| commit | 3ae31f6a7b6e442fc6a92f29330fbad230dc3992 (patch) | |
| tree | 9ca152ac3412de2917c0486b64898e6a75f853d9 /include/scsi | |
| parent | [SCSI] zfcp: Adapt change_queue_depth for queue full tracking (diff) | |
| download | linux-3ae31f6a7b6e442fc6a92f29330fbad230dc3992.tar.xz linux-3ae31f6a7b6e442fc6a92f29330fbad230dc3992.zip | |
[SCSI] scsi_dh: Change the scsidh_activate interface to be asynchronous
Make scsi_dh_activate() function asynchronous, by taking in two additional
parameters, one is the callback function and the other is the data to call
the callback function with.
Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'include/scsi')
| -rw-r--r-- | include/scsi/scsi_device.h | 3 | ||||
| -rw-r--r-- | include/scsi/scsi_dh.h | 6 |
2 files changed, 6 insertions, 3 deletions
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 92c4c3bd916d..68d185c79bae 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -177,6 +177,7 @@ struct scsi_dh_devlist { char *model; }; +typedef void (*activate_complete)(void *, int); struct scsi_device_handler { /* Used by the infrastructure */ struct list_head list; /* list of scsi_device_handlers */ @@ -188,7 +189,7 @@ struct scsi_device_handler { int (*check_sense)(struct scsi_device *, struct scsi_sense_hdr *); int (*attach)(struct scsi_device *); void (*detach)(struct scsi_device *); - int (*activate)(struct scsi_device *); + int (*activate)(struct scsi_device *, activate_complete, void *); int (*prep_fn)(struct scsi_device *, struct request *); int (*set_params)(struct scsi_device *, const char *); }; diff --git a/include/scsi/scsi_dh.h b/include/scsi/scsi_dh.h index ff2407405b42..e3f2db212ddc 100644 --- a/include/scsi/scsi_dh.h +++ b/include/scsi/scsi_dh.h @@ -56,14 +56,16 @@ enum { SCSI_DH_DRIVER_MAX, }; #if defined(CONFIG_SCSI_DH) || defined(CONFIG_SCSI_DH_MODULE) -extern int scsi_dh_activate(struct request_queue *); +extern int scsi_dh_activate(struct request_queue *, activate_complete, void *); extern int scsi_dh_handler_exist(const char *); extern int scsi_dh_attach(struct request_queue *, const char *); extern void scsi_dh_detach(struct request_queue *); extern int scsi_dh_set_params(struct request_queue *, const char *); #else -static inline int scsi_dh_activate(struct request_queue *req) +static inline int scsi_dh_activate(struct request_queue *req, + activate_complete fn, void *data) { + fn(data, 0); return 0; } static inline int scsi_dh_handler_exist(const char *name) |