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| author | linke li <lilinke99@qq.com> | 2024-04-27 09:29:56 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-05-06 03:53:57 +0300 |
| commit | 5ee9562c586cd4ca9402b3636157abdd58ab7978 (patch) | |
| tree | 6bf4ad0be1e6322658e8869cb48c2e62535c95ee /drivers | |
| parent | 637a900b08c65387dcac1417a964399986b1b424 (diff) | |
| download | linux-5ee9562c586cd4ca9402b3636157abdd58ab7978.tar.xz | |
mm/swapfile: mark racy access on si->highest_bit
In scan_swap_map_slots(), si->highest_bit can by changed by
swap_range_alloc() concurrently. All reads on si->highest_bit except one
is either protected by lock or read using READ_ONCE. So mark the one racy
read on si->highest_bit as benign using READ_ONCE.
This patch is aimed at reducing the number of benign races reported by
KCSAN in order to focus future debugging effort on harmful races.
Link: https://lkml.kernel.org/r/tencent_912BC3E8B0291DA4A0028AB424076375DA07@qq.com
Signed-off-by: linke li <lilinke99@qq.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions