struct dentry *parent = dget_parent(dentry);
struct inode *dir = parent->d_inode;
struct nfs_server *server = NFS_SERVER(dir);
+ struct nfs_seqid *(*alloc_seqid)(struct nfs_seqid_counter *, gfp_t);
struct nfs4_opendata *p;
p = kzalloc(sizeof(*p), gfp_mask);
if (IS_ERR(p->f_label))
goto err_free_p;
- p->o_arg.seqid = nfs_alloc_seqid(&sp->so_seqid, gfp_mask);
- if (p->o_arg.seqid == NULL)
+ alloc_seqid = server->nfs_client->cl_mvops->alloc_seqid;
+ p->o_arg.seqid = alloc_seqid(&sp->so_seqid, gfp_mask);
+ if (IS_ERR(p->o_arg.seqid))
goto err_free_label;
nfs_sb_active(dentry->d_sb);
p->dentry = dget(dentry);
return 0;
if ((delegation->type & fmode) != fmode)
return 0;
- if (test_bit(NFS_DELEGATION_NEED_RECLAIM, &delegation->flags))
- return 0;
if (test_bit(NFS_DELEGATION_RETURNING, &delegation->flags))
return 0;
nfs_mark_delegation_referenced(delegation);
return false;
}
+static void nfs_resync_open_stateid_locked(struct nfs4_state *state)
+{
+ if (state->n_wronly)
+ set_bit(NFS_O_WRONLY_STATE, &state->flags);
+ if (state->n_rdonly)
+ set_bit(NFS_O_RDONLY_STATE, &state->flags);
+ if (state->n_rdwr)
+ set_bit(NFS_O_RDWR_STATE, &state->flags);
+}
+
static void nfs_clear_open_stateid_locked(struct nfs4_state *state,
nfs4_stateid *stateid, fmode_t fmode)
{
}
if (stateid == NULL)
return;
- if (!nfs_need_update_open_stateid(state, stateid))
+ /* Handle races with OPEN */
+ if (!nfs4_stateid_match_other(stateid, &state->open_stateid) ||
+ !nfs4_stateid_is_newer(stateid, &state->open_stateid)) {
+ nfs_resync_open_stateid_locked(state);
return;
+ }
if (test_bit(NFS_DELEGATED_STATE, &state->flags) == 0)
nfs4_stateid_copy(&state->stateid, stateid);
nfs4_stateid_copy(&state->open_stateid, stateid);
case -NFS4ERR_OLD_STATEID:
case -NFS4ERR_BAD_STATEID:
case -NFS4ERR_EXPIRED:
+ if (!nfs4_stateid_match(&calldata->arg.stateid,
+ &state->stateid)) {
+ rpc_restart_call_prepare(task);
+ goto out_release;
+ }
if (calldata->arg.fmode == 0)
break;
default:
is_rdwr = test_bit(NFS_O_RDWR_STATE, &state->flags);
is_rdonly = test_bit(NFS_O_RDONLY_STATE, &state->flags);
is_wronly = test_bit(NFS_O_WRONLY_STATE, &state->flags);
+ nfs4_stateid_copy(&calldata->arg.stateid, &state->stateid);
/* Calculate the change in open mode */
calldata->arg.fmode = 0;
if (state->n_rdwr == 0) {
int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait)
{
struct nfs_server *server = NFS_SERVER(state->inode);
+ struct nfs_seqid *(*alloc_seqid)(struct nfs_seqid_counter *, gfp_t);
struct nfs4_closedata *calldata;
struct nfs4_state_owner *sp = state->owner;
struct rpc_task *task;
calldata->inode = state->inode;
calldata->state = state;
calldata->arg.fh = NFS_FH(state->inode);
- calldata->arg.stateid = &state->open_stateid;
/* Serialization for the sequence id */
- calldata->arg.seqid = nfs_alloc_seqid(&state->owner->so_seqid, gfp_mask);
- if (calldata->arg.seqid == NULL)
+ alloc_seqid = server->nfs_client->cl_mvops->alloc_seqid;
+ calldata->arg.seqid = alloc_seqid(&state->owner->so_seqid, gfp_mask);
+ if (IS_ERR(calldata->arg.seqid))
goto out_free_calldata;
calldata->arg.fmode = 0;
calldata->arg.bitmask = server->cache_consistency_bitmask;
}
static unsigned int
-nfs4_init_nonuniform_client_string(const struct nfs_client *clp,
+nfs4_init_nonuniform_client_string(struct nfs_client *clp,
char *buf, size_t len)
{
unsigned int result;
+ if (clp->cl_owner_id != NULL)
+ return strlcpy(buf, clp->cl_owner_id, len);
+
rcu_read_lock();
result = scnprintf(buf, len, "Linux NFSv4.0 %s/%s %s",
clp->cl_ipaddr,
rpc_peeraddr2str(clp->cl_rpcclient,
RPC_DISPLAY_PROTO));
rcu_read_unlock();
+ clp->cl_owner_id = kstrdup(buf, GFP_KERNEL);
return result;
}
static unsigned int
-nfs4_init_uniform_client_string(const struct nfs_client *clp,
+nfs4_init_uniform_client_string(struct nfs_client *clp,
char *buf, size_t len)
{
const char *nodename = clp->cl_rpcclient->cl_nodename;
+ unsigned int result;
+
+ if (clp->cl_owner_id != NULL)
+ return strlcpy(buf, clp->cl_owner_id, len);
if (nfs4_client_id_uniquifier[0] != '\0')
- return scnprintf(buf, len, "Linux NFSv%u.%u %s/%s",
+ result = scnprintf(buf, len, "Linux NFSv%u.%u %s/%s",
clp->rpc_ops->version,
clp->cl_minorversion,
nfs4_client_id_uniquifier,
nodename);
- return scnprintf(buf, len, "Linux NFSv%u.%u %s",
+ else
+ result = scnprintf(buf, len, "Linux NFSv%u.%u %s",
clp->rpc_ops->version, clp->cl_minorversion,
nodename);
+ clp->cl_owner_id = kstrdup(buf, GFP_KERNEL);
+ return result;
}
/*
goto out;
seqid = nfs_alloc_seqid(&lsp->ls_seqid, GFP_KERNEL);
status = -ENOMEM;
- if (seqid == NULL)
+ if (IS_ERR(seqid))
goto out;
task = nfs4_do_unlck(request, nfs_file_open_context(request->fl_file), lsp, seqid);
status = PTR_ERR(task);
p->arg.fh = NFS_FH(inode);
p->arg.fl = &p->fl;
p->arg.open_seqid = nfs_alloc_seqid(&lsp->ls_state->owner->so_seqid, gfp_mask);
- if (p->arg.open_seqid == NULL)
+ if (IS_ERR(p->arg.open_seqid))
goto out_free;
p->arg.lock_seqid = nfs_alloc_seqid(&lsp->ls_seqid, gfp_mask);
- if (p->arg.lock_seqid == NULL)
+ if (IS_ERR(p->arg.lock_seqid))
goto out_free_seqid;
p->arg.lock_stateid = &lsp->ls_stateid;
p->arg.lock_owner.clientid = server->nfs_client->cl_clientid;
.match_stateid = nfs4_match_stateid,
.find_root_sec = nfs4_find_root_sec,
.free_lock_state = nfs4_release_lockowner,
+ .alloc_seqid = nfs_alloc_seqid,
.call_sync_ops = &nfs40_call_sync_ops,
.reboot_recovery_ops = &nfs40_reboot_recovery_ops,
.nograce_recovery_ops = &nfs40_nograce_recovery_ops,
};
#if defined(CONFIG_NFS_V4_1)
+static struct nfs_seqid *
+nfs_alloc_no_seqid(struct nfs_seqid_counter *arg1, gfp_t arg2)
+{
+ return NULL;
+}
+
static const struct nfs4_minor_version_ops nfs_v4_1_minor_ops = {
.minor_version = 1,
.init_caps = NFS_CAP_READDIRPLUS
.match_stateid = nfs41_match_stateid,
.find_root_sec = nfs41_find_root_sec,
.free_lock_state = nfs41_free_lock_state,
+ .alloc_seqid = nfs_alloc_no_seqid,
.call_sync_ops = &nfs41_call_sync_ops,
.reboot_recovery_ops = &nfs41_reboot_recovery_ops,
.nograce_recovery_ops = &nfs41_nograce_recovery_ops,
.find_root_sec = nfs41_find_root_sec,
.free_lock_state = nfs41_free_lock_state,
.call_sync_ops = &nfs41_call_sync_ops,
+ .alloc_seqid = nfs_alloc_no_seqid,
.reboot_recovery_ops = &nfs41_reboot_recovery_ops,
.nograce_recovery_ops = &nfs41_nograce_recovery_ops,
.state_renewal_ops = &nfs41_state_renewal_ops,
projects / firefly-linux-kernel-4.4.55.git / blobdiff