netdev - [PATCH RFC 07/30] NFSD: Refactor nfsd_file_lru

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Message-ID: <165590721240.75778.18176617432613599439.stgit@manet.1015granger.net>
Date:   Wed, 22 Jun 2022 10:13:32 -0400
From:   Chuck Lever <chuck.lever@...cle.com>
To:     linux-nfs@...r.kernel.org, netdev@...r.kernel.org
Cc:     david@...morbit.com, tgraf@...g.ch, jlayton@...hat.com
Subject: [PATCH RFC 07/30] NFSD: Refactor nfsd_file_lru_scan()

Signed-off-by: Chuck Lever <chuck.lever@...cle.com>
---
 fs/nfsd/filecache.c |   25 +++++++------------------
 1 file changed, 7 insertions(+), 18 deletions(-)

diff --git a/fs/nfsd/filecache.c b/fs/nfsd/filecache.c
index 930f1448173f..b1e7588d578a 100644
--- a/fs/nfsd/filecache.c
+++ b/fs/nfsd/filecache.c
@@ -478,23 +478,6 @@ static void nfsd_file_gc_dispose_list(struct list_head *dispose)
 	nfsd_file_dispose_list_delayed(dispose);
 }
 
-static unsigned long
-nfsd_file_lru_walk_list(struct shrink_control *sc)
-{
-	LIST_HEAD(head);
-	unsigned long ret;
-
-	if (sc)
-		ret = list_lru_shrink_walk(&nfsd_file_lru, sc,
-				nfsd_file_lru_cb, &head);
-	else
-		ret = list_lru_walk(&nfsd_file_lru,
-				nfsd_file_lru_cb,
-				&head, LONG_MAX);
-	nfsd_file_gc_dispose_list(&head);
-	return ret;
-}
-
 static void
 nfsd_file_gc(void)
 {
@@ -521,7 +504,13 @@ nfsd_file_lru_count(struct shrinker *s, struct shrink_control *sc)
 static unsigned long
 nfsd_file_lru_scan(struct shrinker *s, struct shrink_control *sc)
 {
-	return nfsd_file_lru_walk_list(sc);
+	LIST_HEAD(dispose);
+	unsigned long ret;
+
+	ret = list_lru_shrink_walk(&nfsd_file_lru, sc,
+				   nfsd_file_lru_cb, &dispose);
+	nfsd_file_gc_dispose_list(&dispose);
+	return ret;
 }
 
 static struct shrinker	nfsd_file_shrinker = {