Re: vmalloc on 2.4.x on ia64

[Alan Cox]

> I am calling during initialization only from detect() entry point.
> But I guess, before the detect() is called, scsi layer acquires
> the io_request_lock. So, you mean to say that I need to release it

That depends if your driver is doing old or new style initialization

> before calling vmalloc() ? I was doing the same thing on 2.2.x
> and even on 2.4.0 and it was working fine and now suddenly
> it stopped working on 2.4.2. So what are the guidelines for using
> vmalloc() if we want to use it in scsi low-level (HBA) driver ?

You can use vmalloc in any situation where you are in task context
and can sleep.

> I am currently using the new error handling code. (use_new_eh_code = TRUE).

Then yes you would need to drop the lock if my memory serves me rightly.