diff options
Diffstat (limited to 'net/sunrpc/cache.c')
| -rw-r--r-- | net/sunrpc/cache.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c index 7ce5e28a6c03..004cdb59f010 100644 --- a/net/sunrpc/cache.c +++ b/net/sunrpc/cache.c @@ -1536,9 +1536,13 @@ static ssize_t write_flush(struct file *file, const char __user *buf, * or by one second if it has already reached the current time. * Newly added cache entries will always have ->last_refresh greater * that ->flush_time, so they don't get flushed prematurely. + * + * If someone frequently calls the flush interface, we should + * immediately clean the corresponding cache_detail instead of + * continuously accumulating nextcheck. */ - if (cd->flush_time >= now) + if (cd->flush_time >= now && cd->flush_time < (now + 5)) now = cd->flush_time + 1; cd->flush_time = now; |