[PATCH 5.10 564/770] NFSD: Zero counters when the filecache is re-initialized

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Chuck Lever <chuck.lever@xxxxxxxxxx>

[ Upstream commit 8b330f78040cbe16cf8029df70391b2a491f17e2 ]

If nfsd_file_cache_init() is called after a shutdown, be sure the
stat counters are reset.

Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxx>
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 fs/nfsd/filecache.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/fs/nfsd/filecache.c b/fs/nfsd/filecache.c
index b9941d4ef20d6..60c51a4d8e0d7 100644
--- a/fs/nfsd/filecache.c
+++ b/fs/nfsd/filecache.c
@@ -823,6 +823,8 @@ nfsd_file_cache_shutdown_net(struct net *net)
 void
 nfsd_file_cache_shutdown(void)
 {
+	int i;
+
 	set_bit(NFSD_FILE_SHUTDOWN, &nfsd_file_lru_flags);
 
 	lease_unregister_notifier(&nfsd_file_lease_notifier);
@@ -846,6 +848,15 @@ nfsd_file_cache_shutdown(void)
 	nfsd_file_hashtbl = NULL;
 	destroy_workqueue(nfsd_filecache_wq);
 	nfsd_filecache_wq = NULL;
+
+	for_each_possible_cpu(i) {
+		per_cpu(nfsd_file_cache_hits, i) = 0;
+		per_cpu(nfsd_file_acquisitions, i) = 0;
+		per_cpu(nfsd_file_releases, i) = 0;
+		per_cpu(nfsd_file_total_age, i) = 0;
+		per_cpu(nfsd_file_pages_flushed, i) = 0;
+		per_cpu(nfsd_file_evictions, i) = 0;
+	}
 }
 
 static bool
-- 
2.43.0







[Index of Archives]     [Linux Kernel]     [Kernel Development Newbies]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Hiking]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux