We don't really care whether there are hashed entries when it comes to
scheduling the laundrette. They might all be non-gc entries, after all.
We only want to schedule it if there are entries on the LRU.
Switch to using list_lru_count, and move the check into
nfsd_file_gc_worker. The other callsite in nfsd_file_put doesn't need to
count entries, since it only schedules the laundrette after adding an
entry to the LRU.
Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
---
fs/nfsd/filecache.c | 12 +++++-------
1 file changed, 5 insertions(+), 7 deletions(-)
diff --git a/fs/nfsd/filecache.c b/fs/nfsd/filecache.c
index bcea201d79c3..a47b5b39111a 100644
--- a/fs/nfsd/filecache.c
+++ b/fs/nfsd/filecache.c
@@ -187,12 +187,9 @@ static const struct rhashtable_params nfsd_file_rhash_params = {
static void
nfsd_file_schedule_laundrette(void)
{
- if ((atomic_read(&nfsd_file_rhash_tbl.nelems) == 0) ||
- test_bit(NFSD_FILE_CACHE_UP, &nfsd_file_flags) == 0)
- return;
-
- queue_delayed_work(system_wq, &nfsd_filecache_laundrette,
- NFSD_LAUNDRETTE_DELAY);
+ if (test_bit(NFSD_FILE_CACHE_UP, &nfsd_file_flags))
+ queue_delayed_work(system_wq, &nfsd_filecache_laundrette,
+ NFSD_LAUNDRETTE_DELAY);
}
static void
@@ -646,7 +643,8 @@ static void
nfsd_file_gc_worker(struct work_struct *work)
{
nfsd_file_gc();
- nfsd_file_schedule_laundrette();
+ if (list_lru_count(&nfsd_file_lru))
+ nfsd_file_schedule_laundrette();
}
static unsigned long
--
2.38.1
