From: Mike Rapoport rppt@linux.ibm.com
commit 314c459a6fe0957b5885fbc65c53d51444092880 upstream.
Since commit 974b9b2c68f3 ("mm: consolidate pte_index() and pte_offset_*() definitions") pte_index is a static inline and there is no define for it that can be recognized by the preprocessor. As a result, vm_insert_pages() uses slower loop over vm_insert_page() instead of insert_pages() that amortizes the cost of spinlock operations when inserting multiple pages.
Link: https://lkml.kernel.org/r/20220111145457.20748-1-rppt@kernel.org Fixes: 974b9b2c68f3 ("mm: consolidate pte_index() and pte_offset_*() definitions") Signed-off-by: Mike Rapoport rppt@linux.ibm.com Reported-by: Christian Dietrich stettberger@dokucode.de Reviewed-by: Khalid Aziz khalid.aziz@oracle.com Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- include/linux/pgtable.h | 1 + 1 file changed, 1 insertion(+)
--- a/include/linux/pgtable.h +++ b/include/linux/pgtable.h @@ -44,6 +44,7 @@ static inline unsigned long pte_index(un { return (address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1); } +#define pte_index pte_index
#ifndef pmd_index static inline unsigned long pmd_index(unsigned long address)