Messages in this thread | | | Date | Thu, 6 Jun 2013 13:47:46 +0200 | From | Pavel Machek <> | Subject | Re: [PATCH] TTY:vt: convert remain take_over_console's users to do_take_over_console |
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On Thu 2013-06-06 09:23:13, Wang YanQing wrote: > On Tue, Jun 04, 2013 at 10:13:18PM +0200, Pavel Machek wrote: > > On Tue 2013-05-21 13:15:12, Wang YanQing wrote: > > > Impact: > > > 1:convert all remain take_over_console to do_take_over_console > > > > This is step backwards. > > What is step backwards? do_take_over_console appear MUCH MUCH later in kernel > than take_over_console, do_take_over_console is the new API, I can't understand > what is step backwards.
"do_*" is internal api, "*" is external api. You sprinkle internal api all over the place.
> > > --- a/arch/alpha/kernel/console.c > > > +++ b/arch/alpha/kernel/console.c > > > @@ -61,7 +61,9 @@ locate_and_init_vga(void *(*sel_func)(void *, void *)) > > > > > > /* Set the VGA hose and init the new console. */ > > > pci_vga_hose = hose; > > > - take_over_console(&vga_con, 0, MAX_NR_CONSOLES-1, 1); > > > + console_lock(); > > > + do_take_over_console(&vga_con, 0, MAX_NR_CONSOLES-1, 1); > > > + console_unlock(); > > > } > > > > Original was better. > > Except reduce some console_lock/unlock scatter scattered in kernel, I > can't see the "BETTER", and it is not a BIG problem for the benefit to > unify the API.
You replaced "calling exported function" with "calling internal-sounding function and adding locking too".
Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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