Re: [Bug 13232] ext3/4 with synchronous writes gets wedged by Postfix

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On Wed, May 13, 2009 at 07:13:40PM +0100, Al Viro wrote:
> 
> OK, that's probably the easiest way to do that, as much as I don't like it...
> Since iget() et.al. will not accept I_FREEING (will wait to go away
> and restart), and since we'd better have serialization between new/free
> on fs data structures anyway, we can afford simply skipping I_FREEING
> et.al. in insert_inode_locked().
> 
> We do that from new_inode, so it won't race with free_inode in any interesting
> ways and it won't race with iget (of any origin; nfsd or in case of fs
> corruption a lookup) since both still will wait for I_LOCK.
> 
> Tentative patch follow; folks, I would very much like review on that one,
> since I'm far too low on caffeine and the area is nasty.

Sorry for not having time to review this until now.  This looks good
to me.

Reviewed-by: "Theodore Ts'o" <tytso@xxxxxxx>

So Bug #13232 is currently marked as a 2.6.28 regression; do we feel
confident enough to push this to Linus for 2.6.30?

	  	    	      	 - Ted
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