Messages in this thread | | | Subject | RE: can a kmalloc be both GFP_ATOMIC and GFP_KERNEL at the same time? | Date | Sat, 28 Apr 2007 21:58:49 +0800 | From | "Shan, Guo Wen (Gavin)" <> |
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#define GFP_ATOMIC (__GFP_HIGH) #define GFP_NOIO (__GFP_WAIT) #define GFP_NOFS (__GFP_WAIT | __GFP_IO) #define GFP_KERNEL (__GFP_WAIT | __GFP_IO | __GFP_FS)
-----Original Message----- From: Robert P. J. Day [mailto:rpjday@mindspring.com] Sent: Saturday, April 28, 2007 9:41 PM To: Linux Kernel Mailing List 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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