Commit 1ea66554 authored by Kirill A. Shutemov's avatar Kirill A. Shutemov Committed by Ingo Molnar

x86/mm: Mark p4d_offset() __always_inline

__pgtable_l5_enabled shouldn't be needed after system has booted, we can
mark it as __initdata, but it requires preparation.

KASAN initialization code is a user of USE_EARLY_PGTABLE_L5, so all
pgtable_l5_enabled() translated to __pgtable_l5_enabled there, including
the one in p4d_offset().

It may lead to section mismatch, if a compiler would not inline
p4d_offset(), but leave it as a standalone function: p4d_offset() is not
marked as __init.

Marking p4d_offset() as __always_inline fixes the issue.
Signed-off-by: default avatarKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reviewed-by: default avatarThomas Gleixner <tglx@linutronix.de>
Cc: Hugh Dickins <hughd@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180518103528.59260-7-kirill.shutemov@linux.intel.comSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent 372fddf7
...@@ -898,7 +898,7 @@ static inline unsigned long pgd_page_vaddr(pgd_t pgd) ...@@ -898,7 +898,7 @@ static inline unsigned long pgd_page_vaddr(pgd_t pgd)
#define pgd_page(pgd) pfn_to_page(pgd_pfn(pgd)) #define pgd_page(pgd) pfn_to_page(pgd_pfn(pgd))
/* to find an entry in a page-table-directory. */ /* to find an entry in a page-table-directory. */
static inline p4d_t *p4d_offset(pgd_t *pgd, unsigned long address) static __always_inline p4d_t *p4d_offset(pgd_t *pgd, unsigned long address)
{ {
if (!pgtable_l5_enabled()) if (!pgtable_l5_enabled())
return (p4d_t *)pgd; return (p4d_t *)pgd;
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment