...to allow seqid morphing to be serialized wrt to its copying.
Signed-off-by: Jeff Layton <jeff.layton@xxxxxxxxxxxxxxx>
---
fs/nfsd/nfs4state.c | 1 +
fs/nfsd/state.h | 13 +++++++------
2 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index bec2cc7eac78..156fc9183728 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -577,6 +577,7 @@ struct nfs4_stid *nfs4_alloc_stid(struct nfs4_client *cl,
stid->sc_stateid.si_opaque.so_clid = cl->cl_clientid;
/* Will be incremented before return to client: */
atomic_set(&stid->sc_count, 1);
+ spin_lock_init(&stid->sc_lock);
/*
* It shouldn't be a problem to reuse an opaque stateid value.
diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h
index 6f35fec88517..e3a191ea771c 100644
--- a/fs/nfsd/state.h
+++ b/fs/nfsd/state.h
@@ -84,7 +84,7 @@ struct nfsd4_callback_ops {
* fields that are of general use to any stateid.
*/
struct nfs4_stid {
- atomic_t sc_count;
+ atomic_t sc_count;
#define NFS4_OPEN_STID 1
#define NFS4_LOCK_STID 2
#define NFS4_DELEG_STID 4
@@ -94,11 +94,12 @@ struct nfs4_stid {
#define NFS4_REVOKED_DELEG_STID 16
#define NFS4_CLOSED_DELEG_STID 32
#define NFS4_LAYOUT_STID 64
- unsigned char sc_type;
- stateid_t sc_stateid;
- struct nfs4_client *sc_client;
- struct nfs4_file *sc_file;
- void (*sc_free)(struct nfs4_stid *);
+ unsigned char sc_type;
+ stateid_t sc_stateid;
+ spinlock_t sc_lock;
+ struct nfs4_client *sc_client;
+ struct nfs4_file *sc_file;
+ void (*sc_free)(struct nfs4_stid *);
};
/*
--
2.4.3
--
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