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From: Marko Rauhamaa <>
To: Amir Goldstein <>
Cc: Jan Kara <>, Al Viro <>,
	Eric Paris <>, <>,
Subject: Re: [RFC][PATCH 0/2] fsnotify: super block watch
Date: Wed, 21 Dec 2016 12:15:26 +0200	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <> (Amir Goldstein's message of "Tue, 20 Dec 2016 17:20:05 +0200")

Amir Goldstein <>:

> On the Oct 10 posting you asked me about the use case and it was hard
> to explain the use case with only part of the work done.
> The issue, which this work sets to solve, is the poor scalability of
> recursive inotify watches.

On my [employer's] part, the fanotify API suffers from leakage through

If you need to monitor files in a filesystem, the current fanotify
FAN_MARK_MOUNT flag does not give you a notification if you execute a
command like

   unshare -m touch xyz

inside the file system.

Amir's patch addresses this increasingly critical issue.


      parent reply	other threads:[~2016-12-21 10:30 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-20 15:20 Amir Goldstein
2016-12-20 15:20 ` [RFC][PATCH 1/2] fsnotify: add event mask FS_EVENT_ON_SB Amir Goldstein
2016-12-20 15:20 ` [RFC][PATCH 2/2] fsnotify: implement event reporting to super block's root inode Amir Goldstein
2016-12-21 10:15 ` Marko Rauhamaa [this message]

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