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[2/6] nfsd: Move the delegation reference counter into the struct nfs4_stid

Message ID 1405624354-22388-3-git-send-email-jlayton@primarydata.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jeff Layton July 17, 2014, 7:12 p.m. UTC 
From: Trond Myklebust <trond.myklebust@primarydata.com>

We will want to add reference counting to the lock stateid and open
stateids too in later patches.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
 fs/nfsd/nfs4state.c | 6 +++---
 fs/nfsd/state.h     | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)
diff mbox

Patch

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 9bc896720db3..d88a33fa8e8f 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -472,6 +472,7 @@  kmem_cache *slab)
 	stid->sc_stateid.si_opaque.so_clid = cl->cl_clientid;
 	/* Will be incremented before return to client: */
 	stid->sc_stateid.si_generation = 0;
+	atomic_set(&stid->sc_count, 1);
 
 	/*
 	 * It shouldn't be a problem to reuse an opaque stateid value.
@@ -595,7 +596,6 @@  alloc_init_deleg(struct nfs4_client *clp, struct nfs4_ol_stateid *stp, struct sv
 	dp->dl_type = NFS4_OPEN_DELEGATE_READ;
 	fh_copy_shallow(&dp->dl_fh, &current_fh->fh_handle);
 	dp->dl_time = 0;
-	atomic_set(&dp->dl_count, 1);
 	INIT_WORK(&dp->dl_recall.cb_work, nfsd4_run_cb_recall);
 	return dp;
 }
@@ -615,7 +615,7 @@  static void nfs4_free_stid(struct kmem_cache *slab, struct nfs4_stid *s)
 void
 nfs4_put_delegation(struct nfs4_delegation *dp)
 {
-	if (atomic_dec_and_test(&dp->dl_count)) {
+	if (atomic_dec_and_test(&dp->dl_stid.sc_count)) {
 		remove_stid(&dp->dl_stid);
 		nfs4_free_stid(deleg_slab, &dp->dl_stid);
 		num_delegations--;
@@ -3120,7 +3120,7 @@  static void nfsd_break_one_deleg(struct nfs4_delegation *dp)
 	 * lock) we know the server hasn't removed the lease yet, we know
 	 * it's safe to take a reference.
 	 */
-	atomic_inc(&dp->dl_count);
+	atomic_inc(&dp->dl_stid.sc_count);
 	nfsd4_cb_recall(dp);
 }
 
diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h
index 996d61eeb357..e68a9ae30fd7 100644
--- a/fs/nfsd/state.h
+++ b/fs/nfsd/state.h
@@ -73,6 +73,7 @@  struct nfsd4_callback {
 };
 
 struct nfs4_stid {
+	atomic_t sc_count;
 #define NFS4_OPEN_STID 1
 #define NFS4_LOCK_STID 2
 #define NFS4_DELEG_STID 4
@@ -91,7 +92,6 @@  struct nfs4_delegation {
 	struct list_head	dl_perfile;
 	struct list_head	dl_perclnt;
 	struct list_head	dl_recall_lru;  /* delegation recalled */
-	atomic_t		dl_count;       /* ref count */
 	struct nfs4_file	*dl_file;
 	u32			dl_type;
 	time_t			dl_time;