linux-kernel - Re: [PATCH 12/13] iscsi-target: Add misc utility logic

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Message-ID: <CAJAFBLCJVLA7RwmVBUPobzqV+j5T5GoV=uRoRqUDuQkJn41Qpw@mail.gmail.com>
Date:	Thu, 28 Jul 2011 13:30:33 +0200
From:	Fubo Chen <fubo.chen@...il.com>
To:	linux-iscsi-target-dev@...glegroups.com
Cc:	target-devel <target-devel@...r.kernel.org>,
	linux-scsi <linux-scsi@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Christoph Hellwig <hch@....de>,
	Andy Grover <agrover@...hat.com>,
	Hannes Reinecke <hare@...e.de>,
	Roland Dreier <roland@...estorage.com>,
	James Bottomley <James.Bottomley@...senpartnership.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Nicholas Bellinger <nab@...ux-iscsi.org>
Subject: Re: [PATCH 12/13] iscsi-target: Add misc utility logic

On Sat, Jul 23, 2011 at 10:45 AM, Nicholas A. Bellinger
<nab@...ux-iscsi.org> wrote:
> +static int iscsit_do_rx_data(
> +       struct iscsi_conn *conn,
> +       struct iscsi_data_count *count)
> +{
> +       int data = count->data_length, rx_loop = 0, total_rx = 0, iov_len;
> +       u32 rx_marker_val[count->ss_marker_count], rx_marker_iov = 0;
> +       struct kvec iov[count->ss_iov_count], *iov_p;

How big can count->ss_iov_count be ? Can this make a stack overflow ?

Fubo.
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