lkml.org 
[lkml]   [1999]   [Sep]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: BusLogic + SMP == broke
"Leonard N. Zubkoff" wrote:
>
> Unless something has changed recently, the SCSI subsystem is already acquiring
> the spinlock so the driver should not do so except in the interrupt handler.
> The BusLogic driver was written so that if the SCSI mid layer ever stopped
> doing locking or it was beneficial to have separare locks in the driver it
> would be relatively easy.

Sure... that's probably true... my knowledge of Linux SCSI device
drivers is limited to hacking the ability to recognize a PCI card. One
question though... why does the Mylex DAC960 driver acquire the
io_request spinlock? They seem to be similar functions to those in the
BusLogic driver that don't have locks. Oh well... just my ignorance.

Brian Macy

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:53    [W:0.050 / U:0.032 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site