Messages in this thread |  | | Date | Wed, 21 Nov 2001 12:13:09 -0800 | From | george anzinger <> | Subject | Re: Memory allocation question |
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Rik van Riel wrote: > > On Wed, 21 Nov 2001, george anzinger wrote: > > Alan Cox wrote: > > > > > > > size chuncks. Currently I am using kmalloc() to allocate a page at a > > > > time. I don't want to have to worry about mapping/unmapping etc. I > > > > > > Use get_free_page() to get page sized chunks > > > > What about __get_free_page() ? I don't need or want the clear page > > (performance issues). > > get_free_page() doesn't clear the page afaics. > In mm.h (2.4.13 kernel)....
#define __get_free_page(gfp_mask) \ __get_free_pages((gfp_mask),0)
#define __get_dma_pages(gfp_mask, order) \ __get_free_pages((gfp_mask) | GFP_DMA,(order))
/* * The old interface name will be removed in 2.5: */ #define get_free_page get_zeroed_page ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Where as __get_free_page() does not zero. I know this is an old kernel, but...
What am I missing? -- George george@mvista.com High-res-timers: http://sourceforge.net/projects/high-res-timers/ Real time sched: http://sourceforge.net/projects/rtsched/ - 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/
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