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From: Maneesh Soni <maneesh@in.ibm.com>
To: viro@parcelfarce.linux.theplanet.co.uk
Cc: Dipankar Sarma <dipankar@in.ibm.com>,
	Patrick Mochel <mochel@osdl.org>, Greg KH <gregkh@us.ibm.com>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [RFC 0/6] Backing Store for sysfs
Date: Tue, 7 Oct 2003 10:17:03 +0530	[thread overview]
Message-ID: <20031007044703.GB9036@in.ibm.com> (raw)
In-Reply-To: <20031006193050.GT7665@parcelfarce.linux.theplanet.co.uk>

On Mon, Oct 06, 2003 at 08:30:50PM +0100, viro@parcelfarce.linux.theplanet.co.uk wrote:
> What's more important, for leaves of the sysfs tree your overhead is also
> a loss - we don't need to pin dentry down for them even with current sysfs
> design.   And that can be done with minimal code changes and no data changes
> at all.  Your patch will have to be more attractive than that.  What's the
> expected ratio of directories to non-directories in sysfs?

Current sysfs / kobject design _require_ that dentries for the leaves to be
present all the times. There is simply no generic way to find attributes
of a kobject. As of now it uses dentry->d_fsdata to reach to the attribute.

In my system leaves are around 65% of the total.

Thanks
Maneesh

-- 
Maneesh Soni
Linux Technology Center, 
IBM Software Lab, Bangalore, India
email: maneesh@in.ibm.com
Phone: 91-80-5044999 Fax: 91-80-5268553
T/L : 9243696

  parent reply	other threads:[~2003-10-07  4:46 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-10-06  8:59 [RFC 0/6] Backing Store for sysfs Maneesh Soni
2003-10-06  9:00 ` [RFC 1/6] sysfs-kobject.patch Maneesh Soni
2003-10-06  9:00   ` [RFC 2/6] sysfs-mount.patch Maneesh Soni
2003-10-06  9:01     ` [RFC 3/6] sysfs-file.patch Maneesh Soni
2003-10-06  9:01       ` [RFC 4/6] sysfs-symlink.patch Maneesh Soni
2003-10-06  9:02         ` [RFC 5/6] sysfs-attr_group.patch Maneesh Soni
2003-10-06  9:03           ` [RFC 6/6] sysfs-dir.patch Maneesh Soni
2003-10-06 13:43     ` [RFC 2/6] sysfs-mount.patch viro
2003-10-07  7:17       ` Maneesh Soni
2003-10-06 13:41   ` [RFC 1/6] sysfs-kobject.patch viro
2003-10-06 16:16   ` Greg KH
2003-10-06 17:41     ` Dipankar Sarma
2003-10-06 17:44       ` Greg KH
2003-10-06 16:08 ` [RFC 0/6] Backing Store for sysfs Greg KH
2003-10-06 17:31   ` Dipankar Sarma
2003-10-06 17:38     ` Greg KH
2003-10-06 18:01       ` Dipankar Sarma
2003-10-06 18:09         ` Greg KH
2003-10-06 18:31           ` Dipankar Sarma
2003-10-06 18:34             ` Greg KH
2003-10-07  9:08               ` Andreas Jellinghaus
2003-10-06 18:44 ` Patrick Mochel
2003-10-06 19:27   ` Dipankar Sarma
2003-10-06 19:30     ` viro
2003-10-06 20:01       ` Dipankar Sarma
2003-10-06 20:34         ` viro
2003-10-07  4:47       ` Maneesh Soni [this message]
2003-10-06 19:33     ` Patrick Mochel
2003-10-06 20:26       ` Dipankar Sarma
2003-10-06 20:29         ` Patrick Mochel
2003-10-07  4:31           ` Maneesh Soni
2003-10-07  5:25             ` Nick Piggin
2003-10-07  7:17               ` Maneesh Soni
  -- strict thread matches above, loose matches on Subject: below --
2003-10-06 12:34 Christian Borntraeger
2003-10-06 17:38 Christian Borntraeger
2003-10-06 17:41 ` Greg KH
2003-10-06 18:00   ` Kevin P. Fleming
2003-10-06 18:11     ` Greg KH
2003-10-06 18:23       ` Kevin P. Fleming
2003-10-06 18:30         ` Greg KH
2003-10-06 18:38           ` Kevin P. Fleming
2003-10-07  8:30           ` Maneesh Soni
2003-10-06 18:19 Christian Borntraeger
     [not found] <Dzxw.1wW.3@gated-at.bofh.it>
     [not found] ` <DGfG.4UY.3@gated-at.bofh.it>
     [not found]   ` <DHv1.5Ir.1@gated-at.bofh.it>
     [not found]     ` <DHEU.7ET.19@gated-at.bofh.it>
     [not found]       ` <DHY6.3c0.7@gated-at.bofh.it>
     [not found]         ` <DI7S.58w.13@gated-at.bofh.it>
2003-10-06 19:01           ` Pascal Schmidt
2003-10-06 19:10             ` Greg KH
2003-10-07  0:15               ` Pascal Schmidt

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