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authorTrond Myklebust <Trond.Myklebust@netapp.com>2010-07-01 12:49:11 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2010-07-30 14:46:10 -0400
commit77041ed9b49a9e10f374bfa6e482d30ee7a3d46e (patch)
tree8e5f98880863aaaa761735cb483730f8520d6b26 /fs/nfs/nfs4_fs.h
parentd3c7b7ccc199ee564177ee914c04771d6bc00295 (diff)
downloadop-kernel-dev-77041ed9b49a9e10f374bfa6e482d30ee7a3d46e.zip
op-kernel-dev-77041ed9b49a9e10f374bfa6e482d30ee7a3d46e.tar.gz
NFSv4: Ensure the lockowners are labelled using the fl_owner and/or fl_pid
flock locks want to be labelled using the process pid, while posix locks want to be labelled using the fl_owner. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/nfs4_fs.h')
-rw-r--r--fs/nfs/nfs4_fs.h15
1 files changed, 13 insertions, 2 deletions
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index deaf37f..311e15c 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -142,10 +142,20 @@ enum {
* LOCK: one nfs4_state (LOCK) to hold the lock stateid nfs4_state(OPEN)
*/
+struct nfs4_lock_owner {
+ unsigned int lo_type;
+#define NFS4_ANY_LOCK_TYPE (0U)
+#define NFS4_FLOCK_LOCK_TYPE (1U << 0)
+#define NFS4_POSIX_LOCK_TYPE (1U << 1)
+ union {
+ fl_owner_t posix_owner;
+ pid_t flock_owner;
+ } lo_u;
+};
+
struct nfs4_lock_state {
struct list_head ls_locks; /* Other lock stateids */
struct nfs4_state * ls_state; /* Pointer to open state */
- fl_owner_t ls_owner; /* POSIX lock owner */
#define NFS_LOCK_INITIALIZED 1
int ls_flags;
struct nfs_seqid_counter ls_seqid;
@@ -153,6 +163,7 @@ struct nfs4_lock_state {
struct nfs_unique_id ls_id;
nfs4_stateid ls_stateid;
atomic_t ls_count;
+ struct nfs4_lock_owner ls_owner;
};
/* bits for nfs4_state->flags */
@@ -310,7 +321,7 @@ extern void nfs41_handle_sequence_flag_errors(struct nfs_client *clp, u32 flags)
extern void nfs41_handle_recall_slot(struct nfs_client *clp);
extern void nfs4_put_lock_state(struct nfs4_lock_state *lsp);
extern int nfs4_set_lock_state(struct nfs4_state *state, struct file_lock *fl);
-extern void nfs4_copy_stateid(nfs4_stateid *, struct nfs4_state *, fl_owner_t);
+extern void nfs4_copy_stateid(nfs4_stateid *, struct nfs4_state *, fl_owner_t, pid_t);
extern struct nfs_seqid *nfs_alloc_seqid(struct nfs_seqid_counter *counter, gfp_t gfp_mask);
extern int nfs_wait_on_sequence(struct nfs_seqid *seqid, struct rpc_task *task);
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