Re: [patch] fs: new inode i_state corruption fix

From: Nick Piggin
Date: Thu Mar 05 2009 - 05:16:50 EST


On Thu, Mar 05, 2009 at 11:00:01AM +0100, Jan Kara wrote:
> On Thu 05-03-09 07:45:54, Nick Piggin wrote:
> > after ~1hour of running. Previously, the new warnings would start immediately
> > and hang would happen in under 5 minutes.
> A quick grep seems to indicate that you've still missed a few cases,
> haven't you? I still see the same problem in
> drop_caches.c:drop_pagecache_sb() scanning, inode.c:invalidate_inodes()
> scanning, and dquot.c:add_dquot_ref() scanning.
> Otherwise the patch looks fine.

I thought they should be OK; drop_pagecache_sb doesn't play with flags,
invalidate_inodes won't if refcount is elevated, and I think add_dquot_ref
won't if writecount is not elevated...

But maybe that's abit fragile and it would be better policy to always
skip I_NEW in these traverals?

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