alloc_page_vma: should be called from a module? (not exported in x86_64)
From: Alejandro Homs Puron
Date: Thu Nov 29 2007 - 18:07:01 EST
We've developed a driver for an image acquisition card, which maps
kernel alloc'ed buffers into user space vma's. We use alloc_page +
remap_pfn_range in the driver mmap file_operation.
After looking at alloc_page_vma, I thought that it might be more
appropiate than alloc_page in this context. However, if CONFIG_NUMA=y
(x86_64), this function is not visible to modules.
Is this limitation intentional?
We alloc RAM in a page-by-page basis. Is vm_insert_page more
appropiate than remap_pfn_range?
Thanks a lot for your help.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/