Messages in this thread Patch in this message | | | Date | Tue, 06 Aug 2002 14:28:14 +0200 | From | Marcin Dalecki <> | Subject | [PATCH] 2.5.30 IDE 114 |
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- Fix allocation problem introduced in 113 as suggested by Jens. (Thanks go to Jens for providing info how to use properly blk_get_request in this case. Nevermind I just got confused by __blk_get_request in TCQ code, which made me worry about queue depth strain.) (Note: SCSI should propably be using the same mechanism instead of sr_request. At least we should check the code in question there.) diff -durNp -X /tmp/diff.WY9PFG linux-2.5.30/drivers/ide/ide-taskfile.c linux/drivers/ide/ide-taskfile.c --- linux-2.5.30/drivers/ide/ide-taskfile.c 2002-08-06 14:15:07.000000000 +0200 +++ linux/drivers/ide/ide-taskfile.c 2002-08-06 14:02:37.000000000 +0200 @@ -188,18 +188,20 @@ static ide_startstop_t special_intr(stru int ide_raw_taskfile(struct ata_device *drive, struct ata_taskfile *ar, char *buf) { - struct request *rq = &drive->srequest; + struct request *rq; + int errors; struct ata_channel *ch = drive->channel; request_queue_t *q = &drive->queue; DECLARE_COMPLETION(wait); #ifdef CONFIG_BLK_DEV_PDC4030 + /* special drive cmds not supported */ if (ch->chipset == ide_pdc4030 && buf) - return -ENOSYS; /* special drive cmds not supported */ + return -ENOSYS; #endif + rq = blk_get_request(q, READ, __GFP_WAIT); memset(rq, 0, sizeof(*rq)); - rq->buffer = buf; rq->rq_status = RQ_ACTIVE; rq->waiting = &wait; @@ -208,9 +210,12 @@ int ide_raw_taskfile(struct ata_device * ar->command_type = IDE_DRIVE_TASK_NO_DATA; blk_insert_request(q, rq, 1, ar); - wait_for_completion(&wait); /* wait for it to be serviced */ + wait_for_completion(&wait); - return rq->errors ? -EIO : 0; /* return -EIO if errors */ + errors = rq->errors; + blk_put_request(rq); + + return errors ? -EIO : 0; } EXPORT_SYMBOL(ata_read); diff -durNp -X /tmp/diff.WY9PFG linux-2.5.30/include/linux/ide.h linux/include/linux/ide.h --- linux-2.5.30/include/linux/ide.h 2002-08-06 14:15:07.000000000 +0200 +++ linux/include/linux/ide.h 2002-08-06 14:04:32.000000000 +0200 @@ -763,7 +763,6 @@ struct ata_device { request_queue_t queue; /* per device request queue */ struct request *rq; /* current request */ - struct request srequest; /* special requests */ u8 retry_pio; /* retrying dma capable host in pio */ u8 state; /* retry state */ | |