Re: [patch 25/28] netconsole: Support multiple logging targets

[David Miller <davem@davemloft.net>]

From: akpm@linux-foundation.org
Date: Fri, 10 Aug 2007 14:12:07 -0700

> From: Satyam Sharma <satyam@infradead.org>
> 
> Based upon initial work by Keiichi Kii <k-keiichi@bx.jp.nec.com>.
> 
> This patch introduces support for multiple targets, independent of
> CONFIG_NETCONSOLE_DYNAMIC -- this is useful even in the default case and
> (including the infrastructure introduced in previous patches) doesn't really
> add too many bytes to module text.  All the complexity (and size) comes with
> the dynamic reconfigurability / userspace interface patch, and so it's
> plausible users may want to keep this enabled but that disabled (say to avoid
> a dependency on CONFIG_CONFIGFS_FS too).
> 
> Also update documentation to mention the use of ";" separator to specify
> multiple logging targets in the boot/module option string.
> 
> Brief overview:
> 
> We maintain a target_list (and corresponding lock).  Get rid of the static
> "default_target" and introduce allocation and release functions for our
> netconsole_target objects (but keeping sure to preserve previous behaviour
> such as default values).  During init_netconsole(), ";" is used as the
> separator to identify multiple target specifications in the boot/module option
> string.  The target specifications are parsed and netpolls setup.  During
> exit, the target_list is torn down and all items released.
> 
> Signed-off-by: Satyam Sharma <satyam@infradead.org>
> Signed-off-by: Keiichi Kii <k-keiichi@bx.jp.nec.com>
> Cc: Matt Mackall <mpm@selenic.com>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Applied to net-2.6.24, thanks!