NFSv4: Don't exit the state manager without clearing NFS4CLNT_MANAGER_RUNNING

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commit 21a446cf18 upstream.

If we exit the NFSv4 state manager due to a umount, then we can end up
leaving the NFS4CLNT_MANAGER_RUNNING flag set. If another mount causes
the nfs4_client to be rereferenced before it is destroyed, then we end
up never being able to recover state.

Fixes: 47c2199b6e ("NFSv4.1: Ensure state manager thread dies on last ...")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: stable@vger.kernel.org # v4.15+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Trond Myklebust 2018-11-05 11:10:50 -05:00 • committed by Greg Kroah-Hartman

parent 03c91663c0

commit c355fb8d33

1 changed files with 5 additions and 3 deletions

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fs/nfs/nfs4state.c

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