diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2025-09-08 17:12:46 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2025-09-08 17:12:46 -0300 |
| commit | c1ead4b4dfe0f643cfc66571ca7d2fa332eddd35 (patch) | |
| tree | a22ad44bdcc8ea38401cc129e75f15fb4c533317 /include/linux/pgalloc.h | |
| parent | 75a7b9d29215c5aa813b9620f3c56817918f9f8c (diff) | |
| parent | f777d1112ee597d7f7dd3ca232220873a34ad0c8 (diff) | |
Merge remote-tracking branch 'torvalds/master' into perf-tools-next
To pick the fixes sent by Namhyung for tools/perf for v6.17-rc5 and get
closer to the other tools code that is used by tools/perf.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'include/linux/pgalloc.h')
| -rw-r--r-- | include/linux/pgalloc.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/include/linux/pgalloc.h b/include/linux/pgalloc.h new file mode 100644 index 000000000000..9174fa59bbc5 --- /dev/null +++ b/include/linux/pgalloc.h @@ -0,0 +1,29 @@ +/* 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 */ |