linux-ext4 - [Bug 32972] EXT4 causes corrupt BitTorrent downloads

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Message-Id: <201104110226.p3B2QjA8009978@demeter2.kernel.org>
Date:	Mon, 11 Apr 2011 02:26:45 GMT
From:	bugzilla-daemon@...zilla.kernel.org
To:	linux-ext4@...r.kernel.org
Subject: [Bug 32972] EXT4 causes corrupt BitTorrent downloads

https://bugzilla.kernel.org/show_bug.cgi?id=32972





--- Comment #5 from Feng Tang <feng.tang@...el.com>  2011-04-11 02:26:43 ---

> 
> Actually, I'm much more comfortable backing out commit 6de9843da
> entirely.  The above is *not* equivalent to what we had before ---
> consider the case where ext4_map_blocks returns !EXT4_MAP_MAPPED && 
> !EXT4_MAP_UNWRITTEN.
> 
> I don't *think* this should happen in the case where ext4_map_blocks
> returns a value > 0, but the fact that it's not obvious, means I'd
> much rather keep things the way that they are.  It's not like dropping
> the set_buffer_mapped(bh) was saving anything measurable anyway....
> 
>                         - Ted

Agree for the revert and sorry for the inconvenience brought by my patch. I
walked across the code when debugging a problem, and thought the patch can
clean the code a little :( 

Thanks,
Feng

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