kmalloc usage question
From: cranium2003 (cranium2003_at_yahoo.com)
Date: 01/08/05
- Previous message: Greg KH: "Re: [PATCH] USB and Driver Core patches for 2.6.10"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Date: Sat, 8 Jan 2005 01:17:28 -0800 (PST) To: linux-kernel@vger.kernel.org
Hello,
I read kmalloc kernel-api.pdf page and found that
* %GFP_USER - Allocate memory on behalf of user. May
sleep.
*
* %GFP_KERNEL - Allocate normal kernel ram. May
sleep.
*
* %GFP_ATOMIC - Allocation will not sleep. Use
inside interrupt handlers.
What i want to know if i write a Device driver that
has kmalloc statements require allocate some string
variable then which flag i should use?
As apis said GFP_USER. But if i want my kernel module
to be require to work in kernel always then can it be
ok to use GFP_KERNEL??
What are then disadvantages to that???
regards,
cranium
__________________________________
Do you Yahoo!?
The all-new My Yahoo! - Get yours free!
http://my.yahoo.com
-
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/
- Previous message: Greg KH: "Re: [PATCH] USB and Driver Core patches for 2.6.10"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Relevant Pages
|
|
