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| author | Mike Rapoport <rppt@linux.ibm.com> | 2022-02-04 07:49:29 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-02-08 20:34:05 +0300 |
| commit | 65a4863a4ed5580d241d4a84879fa694cd2de25c (patch) | |
| tree | f8b9b857197187ac85728aa02b61f4f15f967819 | |
| parent | 120973e64db94ad7cb76df4b52806ae2cf8c0132 (diff) | |
| download | linux-65a4863a4ed5580d241d4a84879fa694cd2de25c.tar.xz | |
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>
| -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 e24d2c992b11..d468efcf48f4 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) |