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[PATCH] Split struct request ->flags into two parts

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Right now ->flags is a bit of a mess: some are request types, and
others are just modifiers. Clean this up by splitting it into
->cmd_type and ->cmd_flags. This allows introduction of generic
Linux block message types, useful for sending generic Linux commands
to block devices.

Signed-off-by: Jens Axboe <axboe@suse.de>
This commit is contained in:
Jens Axboe
2006-08-10 08:44:47 +02:00
committed by Jens Axboe
parent 77ed74da26
commit 4aff5e2333
39 changed files with 295 additions and 301 deletions
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5
drivers/scsi/sd.c
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@@ -443,8 +443,7 @@ static int sd_init_command(struct scsi_cmnd * SCpnt)
SCpnt->cmnd[0] = READ_6;
SCpnt->sc_data_direction = DMA_FROM_DEVICE;
} else {
printk(KERN_ERR "sd: Unknown command %lx\n", rq->flags);
/* overkill panic("Unknown sd command %lx\n", rq->flags); */
printk(KERN_ERR "sd: Unknown command %x\n", rq->cmd_flags);
return 0;
}
@@ -840,7 +839,7 @@ static int sd_issue_flush(struct device *dev, sector_t *error_sector)
static void sd_prepare_flush(request_queue_t *q, struct request *rq)
{
memset(rq->cmd, 0, sizeof(rq->cmd));
rq->flags |= REQ_BLOCK_PC;
rq->cmd_type = REQ_TYPE_BLOCK_PC;
rq->timeout = SD_TIMEOUT;
rq->cmd[0] = SYNCHRONIZE_CACHE;
rq->cmd_len = 10;