On 12 Oct 2002, Alan Cox wrote:
> These are DMA ring buffers for ISA DMA, they do not need to be zeroed.
Note that the code is the same as it alwasy was - the patch is part of a
rename: "get_free_page()" is gone and is now called "get_zeroed_page()"
so that people see what it does.
"get_free_page()" has always zeroed the contents, with "__get_free_page()"
being the old traditional (and now long non-zeroing variety.
So the patch is purely cosmetic, and if the code was strange before, it's
And it's perhaps more _clearly_ strange, which was really the whole point
of the patch.
See the part of the changeset that touches <linux/gfp.h>:
--- a/include/linux/gfp.h Sat Oct 12 11:16:59 2002
+++ b/include/linux/gfp.h Sat Oct 12 11:16:59 2002
@@ -71,11 +71,6 @@
__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
* There is only one 'core' page-freeing function.
extern void FASTCALL(__free_pages(struct page *page, unsigned int order));
to see that even the comment said this should be done.
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This archive was generated by hypermail 2b29 : Tue Oct 15 2002 - 22:00:44 EST