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

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On Mon, Sep 19, 2005 at 06:37:43PM -0700, Linus Torvalds wrote:
> 
> 
> On Mon, 19 Sep 2005, John McCutchan wrote:
> > 
> > Below is a patch that fixes the random DELETE_SELF events when the
> > system is under load. The problem is that the DELETE_SELF event is sent
> > from dentry_iput, which is called in two code paths,
> > 
> > 1) When a dentry is being deleted
> > 2) When the dcache is being pruned.
> 
> No no.
> 
> The problem is that you put the "fsnotify_inoderemove(inode);" in the 
> wrong place, and I and Al never noticed.
> 
> iput() doesn't have anything to do with delete at all, and adding a flag 
> to it would be wrong. The inode may stay around _after_ the unlink() for 
> as long as it has users (or much longer, if you have hardlinks ;). 
> 
> You should probably move the "fsnotify_inoderemove(inode);" call into
> generic_delete_inode() instead, just after "security_inode_delete()".  No
> new flags, just a new place.
> 
> (Oh, I think you need to add it to "hugetlbfs_delete_inode()" too).

I have a patch pending to kill hugetlbfs_delete_inode().

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