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From: k8 s <uint32@gmail.com>
To: linux-kernel@vger.kernel.org
Subject: Doubt Regarding Multithreading and Device Driver
Date: Wed, 27 Apr 2005 20:35:28 +0530	[thread overview]
Message-ID: <699a19ea050427080545fb1676@mail.gmail.com> (raw)

hello,

I have a doubt regarding user space threads and device drivers
implementation issue.

I have a device driver for /dev/skn
It implements basic driver operations skn_open,skn_release, skn_ioctl.

I am storing something into struct file*filp->private_data.
As this is not shared across processes I am not doing any locking
stuff while accessing or putting anything into it.

Will There be a race condition in a multithreaded program in the ioctl
call on smp kernel accessing filp->private_data.

S.Kartikeyan

             reply	other threads:[~2005-04-27 15:05 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-04-27 15:05 k8 s [this message]
2005-04-27 15:10 ` Max Kellermann
2005-04-27 15:30   ` k8 s
2005-04-27 15:41     ` Paulo Marques
2005-04-27 15:46     ` Al Viro
2005-04-27 15:34 ` Richard B. Johnson
2005-04-27 15:34 ` Jonathan Corbet

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