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authorMike Rapoport <rppt@linux.ibm.com>2022-02-04 07:49:29 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2022-02-04 20:25:05 +0300
commit314c459a6fe0957b5885fbc65c53d51444092880 (patch)
tree86f40b7b2bf599feffc6c7b1c06d7caac84bd4f6
parent80110bbfbba6f0078d5a1cbc8df004506db8ffe5 (diff)
downloadlinux-314c459a6fe0957b5885fbc65c53d51444092880.tar.xz
mm/pgtable: define pte_index so that preprocessor could recognize it
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>
-rw-r--r--include/linux/pgtable.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
index bc8713a76e03..f4f4077b97aa 100644
--- a/include/linux/pgtable.h
+++ b/include/linux/pgtable.h
@@ -62,6 +62,7 @@ static inline unsigned long pte_index(unsigned long address)
{
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)