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authorTrond Myklebust <trond.myklebust@primarydata.com>2014-07-21 09:34:58 -0400
committerJ. Bruce Fields <bfields@redhat.com>2014-07-21 17:03:00 -0400
commit72c0b0fb9f8a24612b6c33c8adf9e9406818981b (patch)
treebd7da695536fd1b00281f126619d00b273a10159 /fs/nfsd
parent417c6629b2d81d5a18d29c4bbb6a9a4c64282a36 (diff)
nfsd: Move the delegation reference counter into the struct nfs4_stid
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> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd')
-rw-r--r--fs/nfsd/nfs4state.c6
-rw-r--r--fs/nfsd/state.h2
2 files changed, 4 insertions, 4 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index cc477dd55dce..72da0d44e66b 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--;
@@ -3118,7 +3118,7 @@ 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;