Re: [PATCH scsi-misc-2.6 01/04] scsi: make scsi_send_eh_cmnd use its own timer instead of scmd->eh_timeout

[Tejun Heo <htejun@gmail.com>]

James Bottomley wrote:
> On Mon, 2005-04-25 at 08:46 +0900, Tejun Heo wrote:
> 
>>  If you're talking about scmd->eh_timeout, it's our main timer for 
>>normal command timeouts.  If you're suggesting renaming it to something 
>>more apparant, I agree.  Maybe just scmd->timeout will do.
> 
> 
> Sorry ... actually on the ball now; I was assuming you simply wanted not
> to use the field for efficiency.  
> 
> So, actually having read the description, you think that reusing the
> eh_timeout in the error handler command submission path could confuse
> the normal done routine if the host still has the command pending and
> completes it?

 Hi, James.

 Sorry about late reply.  Been busy and currently on the run, so please
excuse me for being brief.

 * A command is passed to lldd and starts execution
 * It times out.
 * eh runs
 * abort isn't implemented or fails
 * eh issues eh cmd (TUL, STU...)
 * The command miraculously & stupidly completes just now.
 * The lldd succeeds to delete timer and normal completion path runs.
 * We're fucked up now.

 If anything is wrong, please point out.

 Thanks.  Gotta go.

-- 
tejun