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SubjectRe: [PATCH 2.6.6-mm2] vfs iput in inode critical region
FromFabF <>
DateThu, 13 May 2004 17:02:19 +0200
On Sat, 2004-05-15 at 00:47, viro@parcelfarce.linux.theplanet.co.uk
wrote:
> 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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