From: Charles Haithcock Date: Mon, 2 Nov 2020 01:07:56 +0000 (-0800) Subject: mm, oom: keep oom_adj under or at upper limit when printing X-Git-Tag: v5.15~2502^2~3 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=66606567dedf395e0857f531976efad4cbbd39ea;p=platform%2Fkernel%2Flinux-starfive.git mm, oom: keep oom_adj under or at upper limit when printing For oom_score_adj values in the range [942,999], the current calculations will print 16 for oom_adj. This patch simply limits the output so output is inline with docs. Signed-off-by: Charles Haithcock Signed-off-by: Andrew Morton Acked-by: Michal Hocko Cc: Alexey Dobriyan Link: https://lkml.kernel.org/r/20201020165130.33927-1-chaithco@redhat.com Signed-off-by: Linus Torvalds --- diff --git a/fs/proc/base.c b/fs/proc/base.c index 0f70700..b362523 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1049,6 +1049,8 @@ static ssize_t oom_adj_read(struct file *file, char __user *buf, size_t count, oom_adj = (task->signal->oom_score_adj * -OOM_DISABLE) / OOM_SCORE_ADJ_MAX; put_task_struct(task); + if (oom_adj > OOM_ADJUST_MAX) + oom_adj = OOM_ADJUST_MAX; len = snprintf(buffer, sizeof(buffer), "%d\n", oom_adj); return simple_read_from_buffer(buf, count, ppos, buffer, len); }