nfsd4: preallocate open stateid in process_open1()
As with the nfs4_file, we'd prefer to find out about any failure before
creating a new file rather than after.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 1f8c781..3e1d4e0 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -268,6 +268,11 @@
return kmem_cache_alloc(slab, GFP_KERNEL);
}
+static struct nfs4_ol_stateid * nfs4_alloc_stateid(struct nfs4_client *clp)
+{
+ return openlockstateid(nfs4_alloc_stid(clp, stateid_slab));
+}
+
static struct nfs4_delegation *
alloc_init_deleg(struct nfs4_client *clp, struct nfs4_ol_stateid *stp, struct svc_fh *current_fh, u32 type)
{
@@ -2511,6 +2516,7 @@
struct nfs4_client *clp = NULL;
unsigned int strhashval;
struct nfs4_openowner *oo = NULL;
+ __be32 status;
if (STALE_CLIENTID(&open->op_clientid))
return nfserr_stale_clientid;
@@ -2538,12 +2544,20 @@
open->op_openowner = NULL;
goto new_owner;
}
- return nfsd4_check_seqid(cstate, &oo->oo_owner, open->op_seqid);
+ status = nfsd4_check_seqid(cstate, &oo->oo_owner, open->op_seqid);
+ if (status)
+ return status;
+ clp = oo->oo_owner.so_client;
+ goto alloc_stateid;
new_owner:
oo = alloc_init_open_stateowner(strhashval, clp, open);
if (oo == NULL)
return nfserr_jukebox;
open->op_openowner = oo;
+alloc_stateid:
+ open->op_stp = nfs4_alloc_stateid(clp);
+ if (!open->op_stp)
+ return nfserr_jukebox;
return nfs_ok;
}
@@ -2616,11 +2630,6 @@
return nfs_ok;
}
-static struct nfs4_ol_stateid * nfs4_alloc_stateid(struct nfs4_client *clp)
-{
- return openlockstateid(nfs4_alloc_stid(clp, stateid_slab));
-}
-
static void nfs4_free_stateid(struct nfs4_ol_stateid *s)
{
kmem_cache_free(stateid_slab, s);
@@ -2661,28 +2670,6 @@
return nfs_ok;
}
-static __be32
-nfs4_new_open(struct svc_rqst *rqstp, struct nfs4_ol_stateid **stpp,
- struct nfs4_file *fp, struct svc_fh *cur_fh,
- struct nfsd4_open *open)
-{
- struct nfs4_ol_stateid *stp;
- struct nfs4_client *cl = open->op_openowner->oo_owner.so_client;
- __be32 status;
-
- stp = nfs4_alloc_stateid(cl);
- if (stp == NULL)
- return nfserr_jukebox;
-
- status = nfs4_get_vfs_file(rqstp, fp, cur_fh, open);
- if (status) {
- nfs4_free_stateid(stp);
- return status;
- }
- *stpp = stp;
- return 0;
-}
-
static inline __be32
nfsd4_truncate(struct svc_rqst *rqstp, struct svc_fh *fh,
struct nfsd4_open *open)
@@ -2916,9 +2903,11 @@
if (status)
goto out;
} else {
- status = nfs4_new_open(rqstp, &stp, fp, current_fh, open);
+ status = nfs4_get_vfs_file(rqstp, fp, current_fh, open);
if (status)
goto out;
+ stp = open->op_stp;
+ open->op_stp = NULL;
init_open_stateid(stp, fp, open);
status = nfsd4_truncate(rqstp, current_fh, open);
if (status) {
@@ -2975,6 +2964,8 @@
}
if (open->op_file)
nfsd4_free_file(open->op_file);
+ if (open->op_stp)
+ nfs4_free_stateid(open->op_stp);
}
__be32