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authorMike Christie <michaelc@cs.wisc.edu>2005-11-11 05:30:27 -0600
committerJames Bottomley <jejb@mulgrave.(none)>2005-12-14 19:03:35 -0800
commit6e68af666f5336254b5715dca591026b7324499a (patch)
tree5640209b6e2b75659149460f14531cfecffe2f5d /include/scsi/scsi_device.h
parent6e39b69e7ea9205c5f80aeac3ef999ab8fb1a4cc (diff)
downloadop-kernel-dev-6e68af666f5336254b5715dca591026b7324499a.zip
op-kernel-dev-6e68af666f5336254b5715dca591026b7324499a.tar.gz
[SCSI] Convert SCSI mid-layer to scsi_execute_async
Add scsi helpers to create really-large-requests and convert scsi-ml to scsi_execute_async(). Per Jens's previous comments, I placed this function in scsi_lib.c. I made it follow all the queue's limits - I think I did at least :), so I removed the warning on the function header. I think the scsi_execute_* functions should eventually take a request_queue and be placed some place where the dm-multipath hw_handler can use them if that failover code is going to stay in the kernel. That conversion patch will be sent in another mail though. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'include/scsi/scsi_device.h')
-rw-r--r--include/scsi/scsi_device.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 063e32f..e94ca4d 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -274,6 +274,12 @@ extern int scsi_execute(struct scsi_device *sdev, const unsigned char *cmd,
extern int scsi_execute_req(struct scsi_device *sdev, const unsigned char *cmd,
int data_direction, void *buffer, unsigned bufflen,
struct scsi_sense_hdr *, int timeout, int retries);
+extern int scsi_execute_async(struct scsi_device *sdev,
+ const unsigned char *cmd, int data_direction,
+ void *buffer, unsigned bufflen, int use_sg,
+ int timeout, int retries, void *privdata,
+ void (*done)(void *, char *, int, int),
+ gfp_t gfp);
static inline unsigned int sdev_channel(struct scsi_device *sdev)
{
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