Re: [PATCH] FAT: Support synchronous update

[Andrew Morton]

OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx> wrote:
>
> Hi,
> 
> These patches adds the `-o sync' and `-o dirsync' supports to fatfs.
> If user specified that option, the fatfs does traditional ordered
> updates by using synchronous writes.  If compared to before, these
> patches will show a improvement of robustness I think.
> 
> `-o sync'    - writes all buffers out before returning from syscall.
> `-o dirsync' - writes the directory's metadata, and unreferencing
>                operations of data block.
> 
>     remaining to be done
>          fat_generic_ioctl(), fat_notify_change(),
> 	 ATTR_ARCH of fat_xxx_write[v],
> 	 and probably, filling hole in cont_prepare_write(),
> 
> NOTE: Since fatfs doesn't have link-count, unfortunately ->rename() is
> not safe order at all.  It may make the shared blocks, but user
> shouldn't lose the data by ->rename().
> 
> Please apply.
> 
> 
> If you test this, please use attached dosfstools. This is fixing
> several bugs of dosfstools.  And "2/29" patch from hpa adds new ioctl,
> the attached archive is also including the commands for testing it.
> -- 
> OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx>
> 
> 

OK.  This email was way too big for linux-kernel, so nobody saw it.

I put the modified fatfsprogs at
http://www.zip.com.au/~akpm/linux/patches/stuff/fatfsprogs.tar.bz2 and
updated the changlog to mention that.

Is there an official place where people should go to download the modified
fatfsprogs?

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