From: Nish Aravamudan <nish.aravamudan@gmail.com>
To: Jeff Garzik <jgarzik@pobox.com>
Cc: Nishanth Aravamudan <nacc@us.ibm.com>,
kj <kernel-janitors@lists.osdl.org>,
lkml <linux-kernel@vger.kernel.org>
Subject: Re: [KJ] Re: [UPDATE PATCH] net/sb1000: replace nicedelay() with ssleep()
Date: Mon, 10 Jan 2005 20:10:23 -0800 [thread overview]
Message-ID: <29495f1d0501102010531fa775@mail.gmail.com> (raw)
In-Reply-To: <41E34E6F.70002@pobox.com>
On Mon, 10 Jan 2005 22:56:31 -0500, Jeff Garzik <jgarzik@pobox.com> wrote:
> Nishanth Aravamudan wrote:
> > @@ -475,7 +467,7 @@ sb1000_reset(const int ioaddr[], const c
> > udelay(1000);
> > outb(0x0, port);
> > inb(port);
> > - nicedelay(60000);
> > + ssleep(1);
> > outb(0x4, port);
> > inb(port);
> > udelay(1000);
> > @@ -537,7 +529,7 @@ sb1000_activate(const int ioaddr[], cons
> > const unsigned char Command0[6] = {0x80, 0x11, 0x00, 0x00, 0x00, 0x00};
> > const unsigned char Command1[6] = {0x80, 0x16, 0x00, 0x00, 0x00, 0x00};
> >
> > - nicedelay(50000);
> > + ssleep(1);
> > if ((status = card_send_command(ioaddr, name, Command0, st)))
> > return status;
> > if ((status = card_send_command(ioaddr, name, Command1, st)))
> > @@ -944,7 +936,7 @@ sb1000_open(struct net_device *dev)
> > /* initialize sb1000 */
> > if ((status = sb1000_reset(ioaddr, name)))
> > return status;
> > - nicedelay(200000);
> > + ssleep(1);
> > if ((status = sb1000_check_CRC(ioaddr, name)))
> > return status;
>
>
> Your conversion of nicedelay() -> ssleep() values is imprecise.
True, but this is what I attempted to allude to in the description of the patch:
> > Remove the prototype and
> > definition of nicedelay(). This is a very weird function, because it is
> > called to sleep in terms of usecs, but always sleeps for 1 second,
> > completely ignoring the parameter. I have gone ahead and followed suit,
> > just sleeping for a second in all cases, but maybe someone with the
> > hardware could tell me if perhaps the paramter *should* matter.
> The author clearly intended the values to be different, right?
Since I'm not the author, I'm not certain whether you are right or
not. I was honestly very confused by nicedelay(). It is called with
various 600000, 500000, 200000 usecs, but the function currently
always requests a 1000000 usec delay (a full second of interruptible
sleep). It just doesn't make any sense... I have sent messages
regarding this function several times (and patches have existed for a
while), but no one has had any comment. I appreciate your input
greatly. What do you think?
Thanks,
Nish
next prev parent reply other threads:[~2005-01-11 4:13 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-10 16:47 [announce] 2.6.10-bk13-kj Domen Puncer
2005-01-10 18:04 ` [KJ] " Nishanth Aravamudan
2005-01-10 18:10 ` Nishanth Aravamudan
2005-01-10 18:19 ` [UPDATE PATCH] scsi/osst: replace schedule_timeout() with msleep() Nishanth Aravamudan
2005-01-10 18:23 ` [UPDATE PATCH] scsi/qla1280: replace schedule_timeout() with ssleep() Nishanth Aravamudan
2005-01-10 18:23 ` [UPDATE PATCH] scsi/osst: replace schedule_timeout() with msleep() Nishanth Aravamudan
2005-01-10 20:08 ` [UPDATE PATCH] drivers/dmapool: use TASK_UNINTERRUPTIBLE instead of TASK_INTERRUPTIBLE Nishanth Aravamudan
2005-01-10 20:13 ` [KJ] [announce] 2.6.10-bk13-kj Nishanth Aravamudan
2005-01-10 21:14 ` Nishanth Aravamudan
2005-01-10 21:15 ` [UPDATE PATCH] block/pf: replace pf_sleep() with msleep() Nishanth Aravamudan
2005-01-10 21:16 ` [UPDATE PATCH] block/pcd: replace pcd_sleep() with msleep()/ssleep() Nishanth Aravamudan
2005-01-10 21:18 ` [UPDATE PATCH] block/pt: replace pt_sleep() " Nishanth Aravamudan
2005-01-10 21:20 ` [UPDATE PATCH] block/pg: replace pg_sleep() with msleep() Nishanth Aravamudan
2005-01-10 21:27 ` [UPDATE PATCH] cdrom/sonycd535: replace schedule_timeout() " Nishanth Aravamudan
2005-01-10 23:12 ` [UPDATE PATCH] message/mptbase: replace schedule_timeout() with ssleep() Nishanth Aravamudan
2005-01-11 0:39 ` [UPDATE PATCH] net/sb1000: replace nicedelay() " Nishanth Aravamudan
2005-01-11 3:56 ` Jeff Garzik
2005-01-11 4:10 ` Nish Aravamudan [this message]
2005-01-11 0:42 ` [UPDATE PATCH] net/slip: replace schedule_timeout() with msleep() Nishanth Aravamudan
2005-01-11 0:56 ` [UPDATE PATCH] sbus/envctrl: replace schedule_timeout() with msleep_interruptible() Nishanth Aravamudan
2005-01-11 1:00 ` [UPDATE PATCH] scsi/st: " Nishanth Aravamudan
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