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Date: Thu, 01 Jun 2006 10:10:34 -0600
From: Kevin Vigor <kevin@realmsys.com>
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To: ghannon@cspi.com
Subject: Re: [PATCH] avoid unnnecessary mtd read when read can be	 satisfied
	by	write buffer
References: <85257180.00537972.00@pine.cspi.com>
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ghannon@cspi.com wrote:

>However when programming a flash device and then reading back
>to verify that it was programmed correctly,  I think this write
>cache would defeat the purpose.
>
>  
>
This problem already exists with the wbuf code since a call to 
jffs2_flash_read will return the write buffer contents regardless of the 
actual contents of the media (unless you call  jffs2_flush_wbuf_pad() 
between the write and the read).

So the semantics could remain the same in that an explicit flush would 
be necessary in order to validate the data on flash.