Re: [PATCH 2.6.6-mm2] vfs iput in inode critical region

From: FabF
Date: Sat May 15 2004 - 01:17:27 EST

On Sat, 2004-05-15 at 00:47, viro@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> On Thu, May 13, 2004 at 09:26:36PM +0200, FabF wrote:
> > Hi,
> >
> > AFAICS, block_dev.c : do_open calls bdput after an unlock_kernel.bdput
> > calls iput and iput plays with some parameters and locks in iput final
> > case only.Here's a patch to have a spinlock around the whole iput.
> Huh? Of course iput() is called without BKL (and in a lot more places than
> just that, actually), but why does it imply that we suddenly need to hold
> inode_lock over the entire function?
What can avoid inode->i_state to change during fs put_inode is done plus
super_operations get assigned something unprotected as well.

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