diff options
| author | Nadav Amit <[email protected]> | 2019-05-04 18:11:24 -0700 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2019-05-05 20:32:46 +0200 |
| commit | caa841360134f863987f2d4f77b8dc2fbb7596f8 (patch) | |
| tree | fc3f7b45f92fc38599a509945ee8b6970eb2c3d8 /include | |
| parent | 3950746d9d8ef981c1cb842384e0e86e8d1aad76 (diff) | |
x86/mm: Initialize PGD cache during mm initialization
Poking-mm initialization might require to duplicate the PGD in early
stage. Initialize the PGD cache earlier to prevent boot failures.
Reported-by: kernel test robot <[email protected]>
Signed-off-by: Nadav Amit <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Rick Edgecombe <[email protected]>
Cc: Rik van Riel <[email protected]>
Cc: Stephen Rothwell <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Fixes: 4fc19708b165 ("x86/alternatives: Initialize temporary mm for patching")
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/pgtable.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h index fa782fba51ee..75d9d68a6de7 100644 --- a/include/asm-generic/pgtable.h +++ b/include/asm-generic/pgtable.h @@ -1126,6 +1126,8 @@ int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn, static inline void init_espfix_bsp(void) { } #endif +extern void __init pgd_cache_init(void); + #ifndef __HAVE_ARCH_PFN_MODIFY_ALLOWED static inline bool pfn_modify_allowed(unsigned long pfn, pgprot_t prot) { |