nfsd: shut down the NFSv4 state objects before the filecache
authorJeff Layton <jlayton@kernel.org>
Thu, 22 Dec 2022 14:51:30 +0000 (09:51 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 12 Jan 2023 10:59:09 +0000 (11:59 +0100)
commit5e48ed805c4f9150c97297efb61e52faae60edd6
tree89f699097f241208e7c73f31241555f586e2fada
parent7e2825f5fb84bd34105b4a19d847657e31a5faf6
nfsd: shut down the NFSv4 state objects before the filecache

[ Upstream commit 789e1e10f214c00ca18fc6610824c5b9876ba5f2 ]

Currently, we shut down the filecache before trying to clean up the
stateids that depend on it. This leads to the kernel trying to free an
nfsd_file twice, and a refcount overput on the nf_mark.

Change the shutdown procedure to tear down all of the stateids prior
to shutting down the filecache.

Reported-and-tested-by: Wang Yugui <wangyugui@e16-tech.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Fixes: 5e113224c17e ("nfsd: nfsd_file cache entries should be per net namespace")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
fs/nfsd/nfssvc.c