lkml.org 
[lkml]   [2001]   [Aug]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: misc questions about kernel 2.4.x internals
Date
On August 20, 2001 04:52 pm, Christian Widmer wrote:
> 3) i had a look at the ll_rw_block and realised that it can block when there
> are to many buffers locked. when i use generic_make_request can i be
> shure that i wont block so that i can call it in a tasklet and don't need to
> switch to a kernel thread? i think that also needs that clustering function
> __make_request may not block. does it or does it not?

It blocks on the availability of a struct request, look at __get_request_wait.
This is how we do IO throttling in 2.4.8/9.

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

\
 
 \ /
  Last update: 2005-03-22 12:57    [W:0.084 / U:0.308 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site