[lkml]   [2003]   [May]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: try_then_request_module
Hi Rusty,
hi LKML,

On Mon, May 19, 2003 at 11:41:20AM +1000, Rusty Russell wrote:
> If someone is feeling eager, many callers could change to
> try_then_request_module(), eg:

[search || request_module]

Many implementation do this with a search and retry the search
(if clever with a goto and a flag variable to save kernel size)
after module loading.

All that implemented in the search routine, which you have to
supply anyway.

So try_then_request_module() will consolidate the the
branch or in the worst case just duplicating that code
everywhere (depends on wether you implement it as a non-inline
function or define).

Usally this is all as simple as:

int module_loaded_flag=0;

/* search code */

if (!module_loaded_flag && !found) {
if (!request_module(bla))
goto retry_with_module_loaded;
return found;

which is very space effecient and also still readable.


Ingo Oeser
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 13:35    [W:0.083 / U:1.276 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site