From 6d99a4c029c01cd7d075f7f9fa3b8b620e49a9f7 Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Tue, 4 May 2021 18:37:54 -0700 Subject: mm: no more EINVAL from /proc/sys/vm/stat_refresh EINVAL was good for drawing the refresher's attention to a warning in dmesg, but became very tiresome when running test suites scripted with "set -e": an underflow from a bug in one feature would cause unrelated tests much later to fail, just because their /proc/sys/vm/stat_refresh touch failed with that error. Stop doing that. Link: https://lkml.kernel.org/r/alpine.LSU.2.11.2102251510410.13363@eggly.anvils Signed-off-by: Hugh Dickins Acked-by: Roman Gushchin Cc: Johannes Weiner Cc: Michal Hocko Cc: Vlastimil Babka Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/vmstat.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/mm/vmstat.c b/mm/vmstat.c index 14d0ba4fd46b..1fb91d5a2b60 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -1862,7 +1862,6 @@ int vmstat_refresh(struct ctl_table *table, int write, if (val < 0) { pr_warn("%s: %s %ld\n", __func__, zone_stat_name(i), val); - err = -EINVAL; } } #ifdef CONFIG_NUMA @@ -1871,7 +1870,6 @@ int vmstat_refresh(struct ctl_table *table, int write, if (val < 0) { pr_warn("%s: %s %ld\n", __func__, numa_stat_name(i), val); - err = -EINVAL; } } #endif @@ -1880,11 +1878,8 @@ int vmstat_refresh(struct ctl_table *table, int write, if (val < 0) { pr_warn("%s: %s %ld\n", __func__, node_stat_name(i), val); - err = -EINVAL; } } - if (err) - return err; if (write) *ppos += *lenp; else -- cgit v1.2.3