linux-kernel - Re: [PATCH 0/3] Replace kmalloc with vmalloc in seq

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Message-ID: <20110922212328.GA30679@infradead.org>
Date:	Thu, 22 Sep 2011 17:23:28 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Colin Cross <ccross@...roid.com>
Cc:	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <peterz@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Alexey Dobriyan <adobriyan@...il.com>
Subject: Re: [PATCH 0/3] Replace kmalloc with vmalloc in seq_files

On Thu, Sep 22, 2011 at 01:57:06PM -0700, Colin Cross wrote:
> seq_files are often used for debugging data.  When the system is under
> memory pressure, and dumping debugging data starts trying to allocate
> large physically contiguous buffers, it often makes the problem worse.

Please fix the instances that you see issues with by using the full
seq_file interface which was designed for his instead of the simplified
"single" interface that is only designed for small amounts of data.

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