The patch titled
Subject: mm/khugepaged: use DEFINE_READ_MOSTLY_HASHTABLE macro
has been added to the -mm mm-unstable branch. Its filename is
mm-khugepaged-use-define_read_mostly_hashtable-macro.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-khugepaged-use-define_read_mostly_hashtable-macro.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
Subject: mm/khugepaged: use DEFINE_READ_MOSTLY_HASHTABLE macro
Date: Fri, 09 Jun 2023 16:44:45 -0700
These are equivalent, but DEFINE_READ_MOSTLY_HASHTABLE exists to define
a hashtable in the .data..read_mostly section.
Link: https://lkml.kernel.org/r/20230609-khugepage-v1-1-dad4e8382298@xxxxxxxxxx
Signed-off-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/khugepaged.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/khugepaged.c~mm-khugepaged-use-define_read_mostly_hashtable-macro
+++ a/mm/khugepaged.c
@@ -88,7 +88,7 @@ static unsigned int khugepaged_max_ptes_
static unsigned int khugepaged_max_ptes_shared __read_mostly;
#define MM_SLOTS_HASH_BITS 10
-static __read_mostly DEFINE_HASHTABLE(mm_slots_hash, MM_SLOTS_HASH_BITS);
+static DEFINE_READ_MOSTLY_HASHTABLE(mm_slots_hash, MM_SLOTS_HASH_BITS);
static struct kmem_cache *mm_slot_cache __read_mostly;
_
Patches currently in -mm which might be from ndesaulniers@xxxxxxxxxx are
mm-khugepaged-use-define_read_mostly_hashtable-macro.patch
