lkml.org 
[lkml]   [1998]   [Dec]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: 2.1.131-ac3 3c509 no irq_save in the sender code
On Mon, 7 Dec 1998, Alan Cox wrote:

>> I don' t understand very well the meaning of `tx is single threaded
>> implicitly'...
>
>All transmits are serialized by the dev_queue_xmit() area code. There
>is a start_bh_atomic around them. Thats something that has to go for
>2.3.x but for 2.2 is quite safe

Ok, but now I can' t understand why the tx can be interrupted by the rx
irq handler in UP safely but not in SMP... What am I mussing here?

Andrea Arcangeli


-
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 13:46    [W:0.109 / U:0.104 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site