Re: [PATCH] fs: don't remove inotify watchers from alive inode-s

[Cyrill Gorcunov]

On Mon, Sep 08, 2014 at 04:01:56PM +0400, Andrey Vagin wrote:
> Currently watchers are removed in dentry_iput(), if n_link is zero.
> But other detries can be linked with this inode. For example if we
> create two hard links, open the first one and set a watcher on the
> second one. Then if we remove both links, the watcher will be removed.
> But we will have the alive file descriptor, which allows us to generate
> more events.
> 
> With this patch, watchers will be removed, only if nlink is zero and
> i_dentry list is empty.

This changes the sequence of notifies userspace will see but I think there
were a bug before this patch, so

Reviewed-by: Cyrill Gorcunov <gorcunov@xxxxxxxxxx>
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