linux-kernel - can a kmalloc be both GFP_ATOMIC and GFP

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Message-ID: <Pine.LNX.4.64.0704280937060.24917@localhost.localdomain>
Date:	Sat, 28 Apr 2007 09:40:39 -0400 (EDT)
From:	"Robert P. J. Day" <rpjday@...dspring.com>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: can a kmalloc be both GFP_ATOMIC and GFP_KERNEL at the same time?

  i'd always assumed that the type flags of GFP_ATOMIC and GFP_KERNEL
were mutually exclusive when it came to calling kmalloc(), at least
based on everything i'd read.  so i'm not sure how to interpret the
following:

drivers/scsi/aic7xxx_old.c:  aic_dev = kmalloc(sizeof(struct aic_dev_data), GFP_ATOMIC | GFP_KERNEL);
drivers/message/i2o/device.c:   resblk = kmalloc(buflen + 8, GFP_KERNEL | GFP_ATOMIC);

  clarification?

rday
-- 
========================================================================
Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry
Waterloo, Ontario, CANADA

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