From mboxrd@z Thu Jan  1 00:00:00 1970
From: Oliver Neukum <oliver@neukum.org>
Subject: memory allocation in sg_io()
Date: Thu, 10 Jan 2008 13:33:10 +0100
Message-ID: <200801101333.12293.oliver@neukum.org>
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To: axboe@kernel.dk, SCSI development list <linux-scsi@vger.kernel.org>

Hi,

could you explain to me why this code can get away with allocating the
sense buffer on the stack?

static int sg_io(struct file *file, struct request_queue *q,
		struct gendisk *bd_disk, struct sg_io_hdr *hdr)
{
	unsigned long start_time;
	int writing = 0, ret = 0, has_write_perm = 0;
	struct request *rq;
	char sense[SCSI_SENSE_BUFFERSIZE];

	Regards
		Oliver