The patch titled
Subject: cachestat: implement cachestat syscall (fix)
has been added to the -mm mm-unstable branch. Its filename is
cachestat-implement-cachestat-syscall-fix.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/cachestat-implement-cachestat-syscall-fix.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Nhat Pham <nphamcs@xxxxxxxxx>
Subject: cachestat: implement cachestat syscall (fix)
Date: Wed, 3 May 2023 19:20:44 -0700
This fixlet replaces rounddown logic with the existing helper.
Link: https://lkml.kernel.org/r/20230504022044.3675469-1-nphamcs@xxxxxxxxx
Fixes: 5c289a59b1d0 ("cachestat: implement cachestat syscall")
Signed-off-by: Nhat Pham <nphamcs@xxxxxxxxx>
Suggested-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/filemap.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/mm/filemap.c~cachestat-implement-cachestat-syscall-fix
+++ a/mm/filemap.c
@@ -4157,8 +4157,7 @@ static void filemap_cachestat(struct add
int order = xa_get_order(xas.xa, xas.xa_index);
nr_pages = 1 << order;
- /* rounds down to the nearest multiple of 2^order */
- folio_first_index = xas.xa_index >> order << order;
+ folio_first_index = round_down(xas.xa_index, 1 << order);
folio_last_index = folio_first_index + nr_pages - 1;
/* Folios might straddle the range boundaries, only count covered pages */
_
Patches currently in -mm which might be from nphamcs@xxxxxxxxx are
zsmalloc-move-lru-update-from-zs_map_object-to-zs_malloc.patch
workingset-refactor-lru-refault-to-expose-refault-recency-check.patch
cachestat-implement-cachestat-syscall.patch
cachestat-implement-cachestat-syscall-fix.patch
selftests-add-selftests-for-cachestat.patch
