On Wed, 7 Dec 2005 10:41:24 -0200 Luiz Fernando Capitulino <[email protected]> wrote: | On Wed, 07 Dec 2005 13:34:38 +0100 | Arjan van de Ven <[email protected]> wrote: | | | On Wed, 2005-12-07 at 10:30 -0200, Luiz Fernando Capitulino wrote: | | > On Wed, 07 Dec 2005 13:27:13 +0100 | | > Arjan van de Ven <[email protected]> wrote: | | > | | > | | | > | > Isn't it right? Is the URB write so fast that switching to atomic_t | | > | > doesn't pay-off? | | > | | | > | an atomic_t access and a spinlock are basically the same price... so | | > | what's the payoff ? | | > | | > One lock less, | | | | where? | | In the 'usb_serial_port', my patch number nine removes the spin lock. struct 'usb_serial_port' I meant. -- Luiz Fernando N. Capitulino - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
- References:
- [PATCH 00/10] usb-serial: Switches from spin lock to atomic_t.
- From: Luiz Fernando Capitulino <[email protected]>
- Re: [PATCH 00/10] usb-serial: Switches from spin lock to atomic_t.
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- Re: [PATCH 00/10] usb-serial: Switches from spin lock to atomic_t.
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- Re: [linux-usb-devel] Re: [PATCH 00/10] usb-serial: Switches from spin lock to atomic_t.
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- Re: [linux-usb-devel] Re: [PATCH 00/10] usb-serial: Switches from spin lock to atomic_t.
- From: Luiz Fernando Capitulino <[email protected]>
- Re: [linux-usb-devel] Re: [PATCH 00/10] usb-serial: Switches from spin lock to atomic_t.
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