Re: [patch] stop inotify from sending random DELETE_SELF event under load

[Christoph Hellwig <hch@infradead.org>]

On Wed, Sep 21, 2005 at 02:15:24AM -0700, Joel Becker wrote:
> 	My apologies for not having read the inotify thread, I'll go
> look in the morning.
> 	In ->drop_inode(), OCFS2 takes care of noticing that nlink has
> been changed by a remote node.  This is necessary for
> generic_drop...delete operation to proceed.
> 	If OCFS2 had to go back to the 2.4 method of checking i_count==1
> in ->put_inode(), I'm not sure we're allowed to modify i_nlink there
> unlocked, are we?
> 	I also think we had some sort of race with inode_lock that
> ->drop_inode() avoids, but I'm not sure.  Mark?

The real fix would be to put an equivalent of OCFS2_INODE_MAYBE_ORPHANED
into struct inode.  That way it could be shared by other clustered
filesystems aswell, and OCFS2 had no need to implement ->drop_inode.

I'm pretty sure I dicussed that with either Mark or Zab.

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