Revert "sunrpc: clean cache_detail immediately when flush is written frequently"

Ondrej reports that certain SELinux tests are failing after commit
fc2a169 ("sunrpc: clean cache_detail immediately when flush is
written frequently"), merged during the v6.15 merge window.

Reported-by: Ondrej Mosnacek <omosnace@redhat.com>
Fixes: fc2a169 ("sunrpc: clean cache_detail immediately when flush is written frequently")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

Author: chucklever

net/sunrpc/cache.c

@@ -1536,13 +1536,9 @@ 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 && cd->flush_time < (now + 5))
+	if (cd->flush_time >= now)
 		now = cd->flush_time + 1;
 
 	cd->flush_time = now;