diff options
| author | Mike Rapoport <rppt@linux.ibm.com> | 2022-02-03 20:49:29 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-02-08 18:30:35 +0100 |
| commit | 7053188ddba3f6e7402000c94496066fa700891e (patch) | |
| tree | 6d8cd157227e192e387b7ae3f9df688b53c75436 /include/linux/pgtable.h | |
| parent | bce7f5d74d74d6f97c8ce0a0dcb741f667ce68a5 (diff) | |
mm/pgtable: define pte_index so that preprocessor could recognize it
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>
Diffstat (limited to 'include/linux/pgtable.h')
| -rw-r--r-- | include/linux/pgtable.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h index 7c869ea8dffc..9def1ac19546 100644 --- a/include/linux/pgtable.h +++ b/include/linux/pgtable.h @@ -44,6 +44,7 @@ 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) |