Re: [PATCH] libata: remove ata_sff_data_xfer_noirq()

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hello, Sebastian.

On Fri, May 04, 2018 at 05:06:20PM +0200, Sebastian Andrzej Siewior wrote:
> ata_sff_data_xfer_noirq() is invoked via the ->sff_data_xfer hook. The
> latter is invoked by ata_pio_sector(), atapi_send_cdb() and
> __atapi_pio_bytes() which in turn is invoked by ata_sff_hsm_move().
> The latter function requires that the "ap->lock" lock is held which
> needs to be taken with disabled interrupts.
> 
> There is no need have to have ata_sff_data_xfer_noirq() which invokes
> ata_sff_data_xfer32() with disabled interrupts because at this point the
> interrupts are already disabled.
> Remove the function and its references to it and replace all callers
> with ata_sff_data_xfer32().

Can you please add irq disabled assert to ata_sff_data_xfer*()?

Thanks.

-- 
tejun
--
To unsubscribe from this list: send the line "unsubscribe linux-doc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Kernel Newbies]     [Security]     [Netfilter]     [Bugtraq]     [Linux FS]     [Yosemite Forum]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Video 4 Linux]     [Device Mapper]     [Linux Resources]

  Powered by Linux