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From: Greg KH <gregkh@suse.de>
To: David Cross <david.cross@cypress.com>
Cc: hirofumi@mail.parknet.co.jp, linux-kernel@vger.kernel.org
Subject: Re: EXPORT_SYMBOL(fat_get_block)
Date: Fri, 13 Aug 2010 10:54:56 -0700	[thread overview]
Message-ID: <20100813175456.GB15024@suse.de> (raw)
In-Reply-To: <1281721539.5839.4.camel@odc-laptop>

On Fri, Aug 13, 2010 at 10:45:39AM -0700, David Cross wrote:
> Hello Hirofumi,
> I would like to export this symbol from the vfat code and add this patch
> to the Linux kernel. You are listed as the MAINTAINER for FAT and VFAT.
> As such, I need your approval to do it. 
> The reason that I need to export this symbol is to allow for file based
> DMA in which the file needs to be pre-allocated. The pre-allocated block
> addresses are passed to a DMA engine which then directly transfers the
> data to non-volatile storage.

Also, why do this at the FAT level, and not more correctly at the block
layer level?  What happens if this isn't a FAT partition on the device?

thanks,

greg k-h

      parent reply	other threads:[~2010-08-13 17:55 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-08-13 17:45 EXPORT_SYMBOL(fat_get_block) David Cross
2010-08-13 17:54 ` EXPORT_SYMBOL(fat_get_block) Greg KH
2010-08-13 18:43   ` EXPORT_SYMBOL(fat_get_block) David Cross
2010-08-13 18:50     ` EXPORT_SYMBOL(fat_get_block) Christoph Hellwig
2010-08-13 19:06       ` EXPORT_SYMBOL(fat_get_block) David Cross
2010-08-13 19:01     ` EXPORT_SYMBOL(fat_get_block) Greg KH
2010-08-13 19:17       ` EXPORT_SYMBOL(fat_get_block) David Cross
2010-08-13 19:28         ` EXPORT_SYMBOL(fat_get_block) Greg KH
2010-08-13 20:32           ` EXPORT_SYMBOL(fat_get_block) David Cross
2010-08-13 22:17             ` EXPORT_SYMBOL(fat_get_block) Greg KH
2010-08-13 23:22               ` EXPORT_SYMBOL(fat_get_block) David Cross
2010-08-14  0:25                 ` EXPORT_SYMBOL(fat_get_block) Greg KH
2010-08-14  1:12                   ` EXPORT_SYMBOL(fat_get_block) David Cross
2010-08-14  3:04                     ` EXPORT_SYMBOL(fat_get_block) Greg KH
2010-08-15 22:57                       ` EXPORT_SYMBOL(fat_get_block) Nelson Zhang
2010-08-17 14:54                         ` EXPORT_SYMBOL(fat_get_block) Greg KH
2010-08-17 15:40                           ` EXPORT_SYMBOL(fat_get_block) Christoph Hellwig
2010-08-17 15:54                             ` EXPORT_SYMBOL(fat_get_block) Greg KH
2010-08-13 17:54 ` Greg KH [this message]

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