The quilt patch titled
Subject: mm/z3fold: fix sheduling while atomic
has been removed from the -mm tree. Its filename was
mm-z3fold-fix-sheduling-while-atomic.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Subject: mm/z3fold: fix sheduling while atomic
Date: Fri, 29 Apr 2022 14:40:43 +0800
Patch series "A few fixup patches for z3fold".
This series contains a few fixup patches to fix sheduling while atomic,
fix possible null pointer dereferencing, fix various race conditions and
so on. More details can be found in the respective changelogs.
This patch (of 9):
z3fold's page_lock is always held when calling alloc_slots. So gfp should
be GFP_ATOMIC to avoid "scheduling while atomic" bug.
Link: https://lkml.kernel.org/r/20220429064051.61552-1-linmiaohe@xxxxxxxxxx
Link: https://lkml.kernel.org/r/20220429064051.61552-2-linmiaohe@xxxxxxxxxx
Fixes: fc5488651c7d ("z3fold: simplify freeing slots")
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Reviewed-by: Vitaly Wool <vitaly.wool@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/z3fold.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/mm/z3fold.c~mm-z3fold-fix-sheduling-while-atomic
+++ a/mm/z3fold.c
@@ -941,8 +941,7 @@ lookup:
}
if (zhdr && !zhdr->slots)
- zhdr->slots = alloc_slots(pool,
- can_sleep ? GFP_NOIO : GFP_ATOMIC);
+ zhdr->slots = alloc_slots(pool, GFP_ATOMIC);
return zhdr;
}
_
Patches currently in -mm which might be from linmiaohe@xxxxxxxxxx are
