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scsi: introduce scsi_req_cancel

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This is for when the request must be dropped in the void,
but still memory should be freed.  To this end, the devices
register a second callback in SCSIBusOps.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Paolo Bonzini 2011-04-18 22:53:08 +02:00
parent 19d110ab8a
commit 94d3f98a3f
8 changed files with 80 additions and 17 deletions
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2
hw/scsi.h
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@ -78,6 +78,7 @@ struct SCSIDeviceInfo {
struct SCSIBusOps {
void (*complete)(SCSIRequest *req, int reason, uint32_t arg);
void (*cancel)(SCSIRequest *req);
};
struct SCSIBus {
@ -115,6 +116,7 @@ void scsi_req_print(SCSIRequest *req);
void scsi_req_data(SCSIRequest *req, int len);
void scsi_req_complete(SCSIRequest *req);
void scsi_req_abort(SCSIRequest *req, int status);
void scsi_req_cancel(SCSIRequest *req);
void scsi_device_purge_requests(SCSIDevice *sdev);
#endif