linux-kernel - Re: SLUB defrag pull request?

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Message-Id: <E1KpPFv-0003ol-NV@pomaz-ex.szeredi.hu>
Date:	Mon, 13 Oct 2008 17:22:47 +0200
From:	Miklos Szeredi <miklos@...redi.hu>
To:	cl@...ux-foundation.org
CC:	penberg@...helsinki.fi, nickpiggin@...oo.com.au, hugh@...itas.com,
	linux-mm@...ck.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org
Subject: Re: SLUB defrag pull request?

And BTW the whole thing seems to be broken WRT umount.  Getting a
reference to a dentry or an inode without also getting reference to a
vfsmount is going to result in "VFS: Busy inodes after unmount of
%s. Self-destruct in 5 seconds.  Have a nice day...\n".  And getting a
reference to the vfsmount will result in EBUSY when trying to umount,
which is also not what we want.

So it seemst that this two pass method will not work with dentries or
inodes at all :(

Miklos
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