The patch titled
Subject: mm/zswap: fix variable 'entry' is uninitialized when used
has been added to the -mm tree. Its filename is
mm-zswap-fix-variable-entry-is-uninitialized-when-used.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-zswap-fix-variable-entry-is-uninitialized-when-used.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-zswap-fix-variable-entry-is-uninitialized-when-used.patch
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------------------------------------------------------
From: Tian Tao <tiantao6@xxxxxxxxxxxxx>
Subject: mm/zswap: fix variable 'entry' is uninitialized when used
the entry has not been initialized when it is used, so allocate PAGE_SIZE
Link: https://lkml.kernel.org/r/1611223030-58346-1-git-send-email-tiantao6@xxxxxxxxxxxxx
Signed-off-by: Tian Tao <tiantao6@xxxxxxxxxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Cc: Vitaly Wool <vitaly.wool@xxxxxxxxxxxx>
Cc: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Barry Song <song.bao.hua@xxxxxxxxxxxxx>
Cc: Dan Streetman <ddstreet@xxxxxxxx>
Cc: Seth Jennings <sjenning@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/zswap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/zswap.c~mm-zswap-fix-variable-entry-is-uninitialized-when-used
+++ a/mm/zswap.c
@@ -944,7 +944,7 @@ static int zswap_writeback_entry(struct
if (!zpool_can_sleep_mapped(pool)) {
- tmp = kmalloc(entry->length, GFP_ATOMIC);
+ tmp = kmalloc(PAGE_SIZE, GFP_ATOMIC);
if (!tmp)
return -ENOMEM;
}
_
Patches currently in -mm which might be from tiantao6@xxxxxxxxxxxxx are
mm-zswap-add-the-flag-can_sleep_mapped.patch
mm-zswap-fix-variable-entry-is-uninitialized-when-used.patch
mm-set-the-sleep_mapped-to-true-for-zbud-and-z3fold.patch
