The patch titled
Subject: mm/codetag: fix arg in pgalloc_tag_copy alloc_tag_sub
has been added to the -mm mm-unstable branch. Its filename is
mm-codetag-fix-arg-in-pgalloc_tag_copy-alloc_tag_sub.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-codetag-fix-arg-in-pgalloc_tag_copy-alloc_tag_sub.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: Sourav Panda <souravpanda@xxxxxxxxxx>
Subject: mm/codetag: fix arg in pgalloc_tag_copy alloc_tag_sub
Date: Tue, 22 Oct 2024 23:24:40 +0000
alloc_tag_sub() takes bytes as opposed to number of pages as argument.
Currently pgalloc_tag_copy() passes the number of pages. This fix passes
the correct unit, which is the number of bytes allocated.
Link: https://lkml.kernel.org/r/20241022232440.334820-1-souravpanda@xxxxxxxxxx
Fixes: e0a955bf7f61 ("mm/codetag: add pgalloc_tag_copy()")
Signed-off-by: Sourav Panda <souravpanda@xxxxxxxxxx>
Acked-by: Suren Baghdasaryan <surenb@xxxxxxxxxx>
Reviewed-by: Pasha Tatashin <pasha.tatashin@xxxxxxxxxx>
Reviewed-by: Anshuman Khandual <anshuman.khandual@xxxxxxx>
Cc: Wei Xu <weixugc@xxxxxxxxxx>
Cc: Yu Zhao <yuzhao@xxxxxxxxxx>
Cc: Kent Overstreet <kent.overstreet@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/mm.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/include/linux/mm.h~mm-codetag-fix-arg-in-pgalloc_tag_copy-alloc_tag_sub
+++ a/include/linux/mm.h
@@ -4206,7 +4206,7 @@ static inline void pgalloc_tag_copy(stru
/* Clear the old ref to the original allocation tag. */
clear_page_tag_ref(&old->page);
/* Decrement the counters of the tag on get_new_folio. */
- alloc_tag_sub(ref, folio_nr_pages(new));
+ alloc_tag_sub(ref, folio_size(new));
__alloc_tag_ref_set(ref, tag);
_
Patches currently in -mm which might be from souravpanda@xxxxxxxxxx are
mm-codetag-fix-arg-in-pgalloc_tag_copy-alloc_tag_sub.patch
