diff options
| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2023-08-18 23:23:33 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-08-25 02:20:29 +0300 |
| commit | 051ddcfeb1bdbae45e660c0db2468d29ca15c6c2 (patch) | |
| tree | 21cc3df15dac68ee95f1b0ae2246522e1fabde71 /include/linux/pgtable.h | |
| parent | bb7dbaafff3f582d18028a5b99a8faa789842678 (diff) | |
| download | linux-051ddcfeb1bdbae45e660c0db2468d29ca15c6c2.tar.xz | |
mm: move PMD_ORDER to pgtable.h
Patch series "Change calling convention for ->huge_fault", v2.
There are two unrelated changes to the calling convention for
->huge_fault. I've bundled them together to help people notice the
change. The first is to improve scalability of DAX page faults by
allowing them to be handled under the VMA lock. The second is to remove
enum page_entry_size since it's really unnecessary. The changelogs and
documentation updates hopefully work to that end.
This patch (of 3):
Allow this to be used in generic code. Also add PUD_ORDER.
Link: https://lkml.kernel.org/r/20230818202335.2739663-1-willy@infradead.org
Link: https://lkml.kernel.org/r/20230818202335.2739663-2-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux/pgtable.h')
| -rw-r--r-- | include/linux/pgtable.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h index 95ad544ad395..f49abcfe5eda 100644 --- a/include/linux/pgtable.h +++ b/include/linux/pgtable.h @@ -5,6 +5,9 @@ #include <linux/pfn.h> #include <asm/pgtable.h> +#define PMD_ORDER (PMD_SHIFT - PAGE_SHIFT) +#define PUD_ORDER (PUD_SHIFT - PAGE_SHIFT) + #ifndef __ASSEMBLY__ #ifdef CONFIG_MMU |