From: "H. Peter Anvin" <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
To: sukadev-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org
Cc: kyle-hoO6YkzgTuCM0SS3m2neIg@public.gmane.org,
bastian-yyjItF7Rl6lg9hUCZPvPmw@public.gmane.org,
containers-qjLDD68F18O7TbgM5vRIOg@public.gmane.org,
xemul-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org,
Alan Cox <alan-qBU/x9rampVanCEyBjwyrvXRex20P6io@public.gmane.org>,
ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org
Subject: Re: [RFC][PATCH 1/3] Move parts of init_dev() into new functions
Date: Mon, 25 Aug 2008 17:04:55 -0700 [thread overview]
Message-ID: <48B348A7.5020407@zytor.com> (raw)
In-Reply-To: <20080825235736.GA2959-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
sukadev-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org wrote:
>>
>> tty = driver->ops->get_tty(driver, inode [, other_stuff?]);
>
> Can the inode be used to identify the driver too ? (but inode to driver
> mapping is not trivial atm).
It can, but it's an O(n) operation in the number of registered drivers.
However, we can only call the above if we know the driver in the first
place so such a lookup is rather pointless.
-hpa
next prev parent reply other threads:[~2008-08-26 0:04 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-25 20:11 [RFC][PATCH 1/3] Move parts of init_dev() into new functions sukadev-r/Jw6+rmf7HQT0dZR+AlfA
[not found] ` <20080825201110.GA32440-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-08-25 20:11 ` Alan Cox
[not found] ` <20080825211146.70b4af63-qBU/x9rampVanCEyBjwyrvXRex20P6io@public.gmane.org>
2008-08-25 22:01 ` sukadev-r/Jw6+rmf7HQT0dZR+AlfA
[not found] ` <20080825220125.GA1084-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-08-25 22:21 ` H. Peter Anvin
[not found] ` <48B33072.4080509-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2008-08-25 22:20 ` Alan Cox
[not found] ` <20080825232003.3574a181-qBU/x9rampVanCEyBjwyrvXRex20P6io@public.gmane.org>
2008-08-26 0:02 ` H. Peter Anvin
[not found] ` <48B34818.2000400-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2008-08-26 9:44 ` Alan Cox
[not found] ` <20080826104445.06d36dd2-qBU/x9rampVanCEyBjwyrvXRex20P6io@public.gmane.org>
2008-08-26 16:40 ` H. Peter Anvin
[not found] ` <48B431F4.90201-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2008-08-26 16:49 ` Alan Cox
[not found] ` <20080826174921.6bfbf989-qBU/x9rampVanCEyBjwyrvXRex20P6io@public.gmane.org>
2008-08-26 17:40 ` H. Peter Anvin
2008-08-25 23:57 ` sukadev-r/Jw6+rmf7HQT0dZR+AlfA
[not found] ` <20080825235736.GA2959-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-08-26 0:04 ` H. Peter Anvin [this message]
[not found] ` <48B348A7.5020407-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2008-08-26 1:18 ` sukadev-r/Jw6+rmf7HQT0dZR+AlfA
[not found] ` <20080826011807.GB2959-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-08-26 2:13 ` H. Peter Anvin
2008-08-25 20:23 ` [RFC][PATCH 2/3] Move some init_dev() code to callers sukadev-r/Jw6+rmf7HQT0dZR+AlfA
[not found] ` <20080825202314.GA318-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-08-28 20:17 ` sukadev-r/Jw6+rmf7HQT0dZR+AlfA
2008-08-25 20:23 ` [RFC][PATCH 3/3] Rename and change init_dev() prototype sukadev-r/Jw6+rmf7HQT0dZR+AlfA
2008-08-26 11:09 ` [RFC][PATCH 1/3] Move parts of init_dev() into new functions Alan Cox
2008-08-28 20:25 ` sukadev-r/Jw6+rmf7HQT0dZR+AlfA
[not found] ` <20080828202520.GG24075-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-08-28 21:00 ` Alan Cox
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