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| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2014-07-30 05:34:06 +0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2014-07-31 20:43:53 +0400 |
| commit | 6011695da2d7c588f2dfe57c318758f0bf1154dd (patch) | |
| tree | 30c9d21250bb486ce5f300ada41711c44d5c29a9 /fs/nfsd/state.h | |
| parent | b3fbfe0e7a1d88e3cbaa282c5f6fc50e8c67448c (diff) | |
| download | linux-6011695da2d7c588f2dfe57c318758f0bf1154dd.tar.xz | |
nfsd: Add reference counting to the lock and open stateids
When we remove the client_mutex, we'll need to be able to ensure that
these objects aren't destroyed while we're not holding locks.
Add a ->free() callback to the struct nfs4_stid, so that we can
release a reference to the stid without caring about the contents.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/state.h')
| -rw-r--r-- | fs/nfsd/state.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h index 39747736e83b..32c466265ac1 100644 --- a/fs/nfsd/state.h +++ b/fs/nfsd/state.h @@ -85,6 +85,7 @@ struct nfs4_stid { unsigned char sc_type; stateid_t sc_stateid; struct nfs4_client *sc_client; + void (*sc_free)(struct nfs4_stid *); }; struct nfs4_delegation { @@ -429,6 +430,7 @@ extern __be32 nfs4_preprocess_stateid_op(struct net *net, stateid_t *stateid, int flags, struct file **filp); extern void nfs4_lock_state(void); extern void nfs4_unlock_state(void); +void nfs4_put_stid(struct nfs4_stid *s); void nfs4_remove_reclaim_record(struct nfs4_client_reclaim *, struct nfsd_net *); extern void nfs4_release_reclaim(struct nfsd_net *); extern struct nfs4_client_reclaim *nfsd4_find_reclaim_client(const char *recdir, @@ -446,7 +448,6 @@ extern int nfsd4_create_callback_queue(void); extern void nfsd4_destroy_callback_queue(void); extern void nfsd4_shutdown_callback(struct nfs4_client *); extern void nfsd4_prepare_cb_recall(struct nfs4_delegation *dp); -extern void nfs4_put_delegation(struct nfs4_delegation *dp); extern struct nfs4_client_reclaim *nfs4_client_to_reclaim(const char *name, struct nfsd_net *nn); extern bool nfs4_has_reclaimed_state(const char *name, struct nfsd_net *nn); |