Re: DNOTIFY to INOTIFY migration

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Dne 2014-03-10 00:21, NeilBrown napsal:
On Fri, 07 Mar 2014 21:30:34 +0100 David Heidelberger
<david.heidelberger@xxxxxxx> wrote:

Hello,

in linux kernel is DNOTIFY actually marked as deprecated, with superior
replacement INOTIFY.

Where is it marked as deprecated?  I would be very surprised if dnotify
wasn't supported indefinitely.


Dnotify is a directory-based per-fd file change notification system
	  that uses signals to communicate events to user-space.  There exist
	  superior alternatives, but some applications may still rely on
	  dnotify.

(fs/notify/dnotify/Kconfig)

In this moment, for modern systems I'm no aware of software actually using DNOTIFY.

Actually there is choice between INOTIFY and FSNOTIFY.

(I have no opinion on whether rpc.idmapd should be changed to use inotify,
except based on the "if it ain't broke, don't fix it" principle).

Well, I'd like to propose build option which notify system include. It seems like *notify support reside only in rpc.idmapd, so it shouldn't be hard.

David

NeilBrown


Is any plan to migrate rpc.idmapd to INOTIFY? As I looked, it's just one
file.

If there is some on-going porting, I'd like to test/report bugs/send
patches, otherwise I'd like to try port it.

Thank you for answer
David Heidelberger (okias)
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