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nfsd: Don't get a session reference without a client reference

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If the client were to disappear from underneath us while we're holding
a session reference, things would be bad. This cleanup helps ensure
that it cannot, which will be a possibility when the client_mutex is
removed.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Trond Myklebust
2014-06-30 11:48:42 -04:00
committed by J. Bruce Fields
parent fd44907c2d
commit d4e19e7027
2 changed files with 68 additions and 46 deletions
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2
fs/nfsd/state.h
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@@ -212,8 +212,6 @@ struct nfsd4_session {
struct nfsd4_slot *se_slots[]; /* forward channel slots */
};
extern void nfsd4_put_session(struct nfsd4_session *ses);
/* formatted contents of nfs4_sessionid */
struct nfsd4_sessionid {
clientid_t clientid;