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Don't read meminfo if there are no shrinkers

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This commit is contained in:
Tim Schlueter 2018-08-23 22:37:31 -07:00
parent 19005ecf08
commit f885dc20eb
1 changed files with 9 additions and 2 deletions
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11
linux/shrinker.c
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@ -69,8 +69,15 @@ static struct meminfo read_meminfo(void)
void run_shrinkers(void)
{
struct shrinker *shrinker;
struct meminfo info = read_meminfo();
s64 want_shrink = (info.total >> 2) - info.available;
struct meminfo info;
s64 want_shrink;
/* Fast out if there are no shrinkers to run. */
if (list_empty(&shrinker_list))
return;
info = read_meminfo();
want_shrink = (info.total >> 2) - info.available;
if (want_shrink <= 0)
return;