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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_PGALLOC_H
#define _LINUX_PGALLOC_H
#include <linux/pgtable.h>
#include <asm/pgalloc.h>
/*
* {pgd,p4d}_populate_kernel() are defined as macros to allow
* compile-time optimization based on the configured page table levels.
* Without this, linking may fail because callers (e.g., KASAN) may rely
* on calls to these functions being optimized away when passing symbols
* that exist only for certain page table levels.
*/
#define pgd_populate_kernel(addr, pgd, p4d) \
do { \
pgd_populate(&init_mm, pgd, p4d); \
if (ARCH_PAGE_TABLE_SYNC_MASK & PGTBL_PGD_MODIFIED) \
arch_sync_kernel_mappings(addr, addr); \
} while (0)
#define p4d_populate_kernel(addr, p4d, pud) \
do { \
p4d_populate(&init_mm, p4d, pud); \
if (ARCH_PAGE_TABLE_SYNC_MASK & PGTBL_P4D_MODIFIED) \
arch_sync_kernel_mappings(addr, addr); \
} while (0)
#endif /* _LINUX_PGALLOC_H */