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lx_emul: __alloc_pages support in shadow/mm/page_alloc.c

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Alexander Boettcher 2022-01-25 11:24:24 +01:00 committed by Christian Helmuth
parent a222df31ba
commit 4474460377
1 changed files with 18 additions and 0 deletions
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18
repos/dde_linux/src/lib/lx_emul/shadow/mm/page_alloc.c
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@ -12,6 +12,7 @@
*/
#include <linux/gfp.h>
#include <linux/version.h>
#include <lx_emul/page_virt.h>
unsigned long __alloc_pages_bulk(gfp_t gfp,int preferred_nid,
@ -51,3 +52,20 @@ void __free_pages(struct page * page, unsigned int order)
lx_emul_mem_free(virt_addr);
lx_emul_mem_free(page);
}
/*
* In earlier kernel versions, '__alloc_pages' was an inline function.
*/
#if LINUX_VERSION_CODE > KERNEL_VERSION(5,12,0)
struct page * __alloc_pages(gfp_t gfp, unsigned int order, int preferred_nid,
nodemask_t * nodemask)
{
unsigned const nr_pages = (1u << order);
void const *ptr = lx_emul_mem_alloc_aligned(PAGE_SIZE*nr_pages, PAGE_SIZE);
struct page *page = lx_emul_virt_to_pages(ptr, nr_pages);
return page;
}
#endif