From: Chuck Lever chuck.lever@oracle.com
stable inclusion from stable-v6.6.57 commit 4ab072325c621e0e4fadff991c7a00379a16a037 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IB22IQ
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit dc0d0f885aa422f621bc1c2124133eff566b0bc8 ]
NeilBrown says:
The handling of NFSD_FILE_CACHE_UP is strange. nfsd_file_cache_init() sets it, but doesn't clear it on failure. So if nfsd_file_cache_init() fails for some reason, nfsd_file_cache_shutdown() would still try to clean up if it was called.
Reported-by: NeilBrown neilb@suse.de Fixes: c7b824c3d06c ("NFSD: Replace the "init once" mechanism") Signed-off-by: Chuck Lever chuck.lever@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Li Lingfeng lilingfeng3@huawei.com --- fs/nfsd/filecache.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/nfsd/filecache.c b/fs/nfsd/filecache.c index 5c9f8f8404d5..6f2bcbfde45e 100644 --- a/fs/nfsd/filecache.c +++ b/fs/nfsd/filecache.c @@ -718,7 +718,7 @@ nfsd_file_cache_init(void)
ret = rhltable_init(&nfsd_file_rhltable, &nfsd_file_rhash_params); if (ret) - return ret; + goto out;
ret = -ENOMEM; nfsd_filecache_wq = alloc_workqueue("nfsd_filecache", 0, 0); @@ -770,6 +770,8 @@ nfsd_file_cache_init(void)
INIT_DELAYED_WORK(&nfsd_filecache_laundrette, nfsd_file_gc_worker); out: + if (ret) + clear_bit(NFSD_FILE_CACHE_UP, &nfsd_file_flags); return ret; out_notifier: lease_unregister_notifier(&nfsd_file_lease_notifier);