The quilt patch titled Subject: mm/damon/paddr: fix folio_size() call after folio_put() in damon_pa_young() has been removed from the -mm tree. Its filename was mm-damon-paddr-fix-folio_size-call-after-folio_put-in-damon_pa_young.patch
This patch was dropped because it was merged into the mm-hotfixes-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------ From: SeongJae Park sj@kernel.org Subject: mm/damon/paddr: fix folio_size() call after folio_put() in damon_pa_young() Date: Sat, 4 Mar 2023 19:39:48 +0000
Patch series "mm/damon/paddr: Fix folio-use-after-put bugs".
There are two folio accesses after folio_put() in mm/damon/paddr.c file. Fix those.
This patch (of 2):
damon_pa_young() is accessing a folio via folio_size() after folio_put() for the folio has invoked. Fix it.
Link: https://lkml.kernel.org/r/20230304193949.296391-1-sj@kernel.org Link: https://lkml.kernel.org/r/20230304193949.296391-2-sj@kernel.org Fixes: 397b0c3a584b ("mm/damon/paddr: remove folio_sz field from damon_pa_access_chk_result") Signed-off-by: SeongJae Park sj@kernel.org Reviewed-by: Kefeng Wang wangkefeng.wang@huawei.com Reviewed-by: Matthew Wilcox (Oracle) willy@infradead.org Cc: Vishal Moola (Oracle) vishal.moola@gmail.com Cc: stable@vger.kernel.org [6.2.x] Signed-off-by: Andrew Morton akpm@linux-foundation.org ---
--- a/mm/damon/paddr.c~mm-damon-paddr-fix-folio_size-call-after-folio_put-in-damon_pa_young +++ a/mm/damon/paddr.c @@ -130,7 +130,6 @@ static bool damon_pa_young(unsigned long accessed = false; else accessed = true; - folio_put(folio); goto out; }
@@ -144,10 +143,10 @@ static bool damon_pa_young(unsigned long
if (need_lock) folio_unlock(folio); - folio_put(folio);
out: *folio_sz = folio_size(folio); + folio_put(folio); return accessed; }
_
Patches currently in -mm which might be from sj@kernel.org are