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NFSD: Zero counters when the filecache is re-initialized

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[ 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@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Chuck Lever 2022-07-08 14:24:51 -04:00 committed by Greg Kroah-Hartman
parent 04b9376a10
commit 6dc5cab808
1 changed files with 11 additions and 0 deletions
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11
fs/nfsd/filecache.c
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@ -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