Re: [PATCH] inotify: IN_DELETE events missing in -mm

[Nick Piggin <nickpiggin@yahoo.com.au>]

Amy Griffis wrote:

> In recent -mm kernels (e.g. 2.6.16-mm1), IN_DELETE events are no longer 
> generated for the removal of a file from a watched directory.
>
> This seems to be a result of clearing DCACHE_INOTIFY_PARENT_WATCHED in
> d_delete() directly before calling fsnotify_nameremove().
>
> Assuming the flag doesn't need to be cleared before dentry_iput(), this should
> do the trick.

Thanks Amy. This should go to the next -stable kernel too.

> Signed-off-by: Amy Griffis <amy.griffis@hp.com>
>
> diff --git a/fs/dcache.c b/fs/dcache.c
> index 363cd4b..344ce91 100644
> --- a/fs/dcache.c
> +++ b/fs/dcache.c
> @@ -1198,11 +1198,11 @@ void d_delete(struct dentry * dentry)
> 	spin_lock(&dentry->d_lock);
> 	isdir = S_ISDIR(dentry->d_inode->i_mode);
> 	if (atomic_read(&dentry->d_count) == 1) {
> -		/* remove this and other inotify debug checks after 2.6.18 */
> -		dentry->d_flags &= ~DCACHE_INOTIFY_PARENT_WATCHED;
> -
> 		dentry_iput(dentry);
> 		fsnotify_nameremove(dentry, isdir);
> +
> +		/* remove this and other inotify debug checks after 2.6.18 */
> +		dentry->d_flags &= ~DCACHE_INOTIFY_PARENT_WATCHED;
> 		return;
> 	}

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