linux-kernel - Re: New TRIM/UNMAP tree published (2009-05-02)

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Date:	Sun, 3 May 2009 16:05:08 +0100 (BST)
From:	Hugh Dickins <hugh@...itas.com>
To:	Matthew Wilcox <matthew@....cx>
cc:	Matthew Wilcox <willy@...ux.intel.com>,
	Boaz Harrosh <bharrosh@...asas.com>, linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org, Jeff Garzik <jgarzik@...hat.com>,
	linux-scsi@...r.kernel.org, Jens Axboe <jens.axboe@...cle.com>,
	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
	Mark Lord <lkml@....ca>
Subject: Re: New TRIM/UNMAP tree published (2009-05-02)

On Sun, 3 May 2009, Matthew Wilcox wrote:
> 
> You make a good point.  There's definitely still work to be done around
> error handling.  OTOH, we could always do what IDE does ...
> 
> static void idedisk_prepare_flush(struct request_queue *q, struct request *rq)
> {
>         ide_drive_t *drive = q->queuedata;
>         struct ide_cmd *cmd = kmalloc(sizeof(*cmd), GFP_ATOMIC);
> 
>         /* FIXME: map struct ide_taskfile on rq->cmd[] */
>         BUG_ON(cmd == NULL);

Oooh, you're winding me up.  Certainly not.  Off with the Top Of your Head!

Hugh
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