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Diffstat (limited to 'fs/nfs/nfs4proc.c')
-rw-r--r--fs/nfs/nfs4proc.c297
1 files changed, 186 insertions, 111 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 8bee93469617..f93b9cdb4934 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -467,7 +467,10 @@ static void do_renew_lease(struct nfs_client *clp, unsigned long timestamp)
static void renew_lease(const struct nfs_server *server, unsigned long timestamp)
{
- do_renew_lease(server->nfs_client, timestamp);
+ struct nfs_client *clp = server->nfs_client;
+
+ if (!nfs4_has_session(clp))
+ do_renew_lease(clp, timestamp);
}
struct nfs4_call_sync_data {
@@ -583,7 +586,7 @@ out_unlock:
spin_unlock(&tbl->slot_tbl_lock);
res->sr_slot = NULL;
if (send_new_highest_used_slotid)
- nfs41_server_notify_highest_slotid_update(session->clp);
+ nfs41_notify_server(session->clp);
}
int nfs41_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *res)
@@ -616,8 +619,7 @@ int nfs41_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *res)
clp = session->clp;
do_renew_lease(clp, res->sr_timestamp);
/* Check sequence flags */
- if (res->sr_status_flags != 0)
- nfs4_schedule_lease_recovery(clp);
+ nfs41_handle_sequence_flag_errors(clp, res->sr_status_flags);
nfs41_update_target_slotid(slot->table, slot, res);
break;
case 1:
@@ -910,6 +912,7 @@ struct nfs4_opendata {
struct nfs_open_confirmres c_res;
struct nfs4_string owner_name;
struct nfs4_string group_name;
+ struct nfs4_label *a_label;
struct nfs_fattr f_attr;
struct nfs4_label *f_label;
struct dentry *dir;
@@ -1013,6 +1016,10 @@ static struct nfs4_opendata *nfs4_opendata_alloc(struct dentry *dentry,
if (IS_ERR(p->f_label))
goto err_free_p;
+ p->a_label = nfs4_label_alloc(server, gfp_mask);
+ if (IS_ERR(p->a_label))
+ goto err_free_f;
+
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))
@@ -1041,7 +1048,7 @@ static struct nfs4_opendata *nfs4_opendata_alloc(struct dentry *dentry,
p->o_arg.server = server;
p->o_arg.bitmask = nfs4_bitmask(server, label);
p->o_arg.open_bitmap = &nfs4_fattr_bitmap[0];
- p->o_arg.label = label;
+ p->o_arg.label = nfs4_label_copy(p->a_label, label);
p->o_arg.claim = nfs4_map_atomic_open_claim(server, claim);
switch (p->o_arg.claim) {
case NFS4_OPEN_CLAIM_NULL:
@@ -1074,6 +1081,8 @@ static struct nfs4_opendata *nfs4_opendata_alloc(struct dentry *dentry,
return p;
err_free_label:
+ nfs4_label_free(p->a_label);
+err_free_f:
nfs4_label_free(p->f_label);
err_free_p:
kfree(p);
@@ -1093,6 +1102,7 @@ static void nfs4_opendata_free(struct kref *kref)
nfs4_put_open_state(p->state);
nfs4_put_state_owner(p->owner);
+ nfs4_label_free(p->a_label);
nfs4_label_free(p->f_label);
dput(p->dir);
@@ -1117,6 +1127,21 @@ static int nfs4_wait_for_completion_rpc_task(struct rpc_task *task)
return ret;
}
+static bool nfs4_mode_match_open_stateid(struct nfs4_state *state,
+ fmode_t fmode)
+{
+ switch(fmode & (FMODE_READ|FMODE_WRITE)) {
+ case FMODE_READ|FMODE_WRITE:
+ return state->n_rdwr != 0;
+ case FMODE_WRITE:
+ return state->n_wronly != 0;
+ case FMODE_READ:
+ return state->n_rdonly != 0;
+ }
+ WARN_ON_ONCE(1);
+ return false;
+}
+
static int can_open_cached(struct nfs4_state *state, fmode_t mode, int open_mode)
{
int ret = 0;
@@ -1140,7 +1165,8 @@ out:
return ret;
}
-static int can_open_delegated(struct nfs_delegation *delegation, fmode_t fmode)
+static int can_open_delegated(struct nfs_delegation *delegation, fmode_t fmode,
+ enum open_claim_type4 claim)
{
if (delegation == NULL)
return 0;
@@ -1148,6 +1174,16 @@ static int can_open_delegated(struct nfs_delegation *delegation, fmode_t fmode)
return 0;
if (test_bit(NFS_DELEGATION_RETURNING, &delegation->flags))
return 0;
+ switch (claim) {
+ case NFS4_OPEN_CLAIM_NULL:
+ case NFS4_OPEN_CLAIM_FH:
+ break;
+ case NFS4_OPEN_CLAIM_PREVIOUS:
+ if (!test_bit(NFS_DELEGATION_NEED_RECLAIM, &delegation->flags))
+ break;
+ default:
+ return 0;
+ }
nfs_mark_delegation_referenced(delegation);
return 1;
}
@@ -1198,15 +1234,19 @@ static bool nfs_need_update_open_stateid(struct nfs4_state *state,
static void nfs_resync_open_stateid_locked(struct nfs4_state *state)
{
+ if (!(state->n_wronly || state->n_rdonly || state->n_rdwr))
+ return;
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);
+ set_bit(NFS_OPEN_STATE, &state->flags);
}
static void nfs_clear_open_stateid_locked(struct nfs4_state *state,
+ nfs4_stateid *arg_stateid,
nfs4_stateid *stateid, fmode_t fmode)
{
clear_bit(NFS_O_RDWR_STATE, &state->flags);
@@ -1225,8 +1265,9 @@ static void nfs_clear_open_stateid_locked(struct nfs4_state *state,
if (stateid == NULL)
return;
/* Handle races with OPEN */
- if (!nfs4_stateid_match_other(stateid, &state->open_stateid) ||
- !nfs4_stateid_is_newer(stateid, &state->open_stateid)) {
+ if (!nfs4_stateid_match_other(arg_stateid, &state->open_stateid) ||
+ (nfs4_stateid_match_other(stateid, &state->open_stateid) &&
+ !nfs4_stateid_is_newer(stateid, &state->open_stateid))) {
nfs_resync_open_stateid_locked(state);
return;
}
@@ -1235,10 +1276,12 @@ static void nfs_clear_open_stateid_locked(struct nfs4_state *state,
nfs4_stateid_copy(&state->open_stateid, stateid);
}
-static void nfs_clear_open_stateid(struct nfs4_state *state, nfs4_stateid *stateid, fmode_t fmode)
+static void nfs_clear_open_stateid(struct nfs4_state *state,
+ nfs4_stateid *arg_stateid,
+ nfs4_stateid *stateid, fmode_t fmode)
{
write_seqlock(&state->seqlock);
- nfs_clear_open_stateid_locked(state, stateid, fmode);
+ nfs_clear_open_stateid_locked(state, arg_stateid, stateid, fmode);
write_sequnlock(&state->seqlock);
if (test_bit(NFS_STATE_RECLAIM_NOGRACE, &state->flags))
nfs4_schedule_state_manager(state->owner->so_server->nfs_client);
@@ -1363,6 +1406,7 @@ static struct nfs4_state *nfs4_try_open_cached(struct nfs4_opendata *opendata)
struct nfs_delegation *delegation;
int open_mode = opendata->o_arg.open_flags;
fmode_t fmode = opendata->o_arg.fmode;
+ enum open_claim_type4 claim = opendata->o_arg.claim;
nfs4_stateid stateid;
int ret = -EAGAIN;
@@ -1376,7 +1420,7 @@ static struct nfs4_state *nfs4_try_open_cached(struct nfs4_opendata *opendata)
spin_unlock(&state->owner->so_lock);
rcu_read_lock();
delegation = rcu_dereference(nfsi->delegation);
- if (!can_open_delegated(delegation, fmode)) {
+ if (!can_open_delegated(delegation, fmode, claim)) {
rcu_read_unlock();
break;
}
@@ -1542,17 +1586,13 @@ static struct nfs4_opendata *nfs4_open_recoverdata_alloc(struct nfs_open_context
return opendata;
}
-static int nfs4_open_recover_helper(struct nfs4_opendata *opendata, fmode_t fmode, struct nfs4_state **res)
+static int nfs4_open_recover_helper(struct nfs4_opendata *opendata,
+ fmode_t fmode)
{
struct nfs4_state *newstate;
int ret;
- if ((opendata->o_arg.claim == NFS4_OPEN_CLAIM_DELEGATE_CUR ||
- opendata->o_arg.claim == NFS4_OPEN_CLAIM_DELEG_CUR_FH) &&
- (opendata->o_arg.u.delegation_type & fmode) != fmode)
- /* This mode can't have been delegated, so we must have
- * a valid open_stateid to cover it - not need to reclaim.
- */
+ if (!nfs4_mode_match_open_stateid(opendata->state, fmode))
return 0;
opendata->o_arg.open_flags = 0;
opendata->o_arg.fmode = fmode;
@@ -1568,14 +1608,14 @@ static int nfs4_open_recover_helper(struct nfs4_opendata *opendata, fmode_t fmod
newstate = nfs4_opendata_to_nfs4_state(opendata);
if (IS_ERR(newstate))
return PTR_ERR(newstate);
+ if (newstate != opendata->state)
+ ret = -ESTALE;
nfs4_close_state(newstate, fmode);
- *res = newstate;
- return 0;
+ return ret;
}
static int nfs4_open_recover(struct nfs4_opendata *opendata, struct nfs4_state *state)
{
- struct nfs4_state *newstate;
int ret;
/* Don't trigger recovery in nfs_test_and_clear_all_open_stateid */
@@ -1586,27 +1626,15 @@ static int nfs4_open_recover(struct nfs4_opendata *opendata, struct nfs4_state *
clear_bit(NFS_DELEGATED_STATE, &state->flags);
clear_bit(NFS_OPEN_STATE, &state->flags);
smp_rmb();
- if (state->n_rdwr != 0) {
- ret = nfs4_open_recover_helper(opendata, FMODE_READ|FMODE_WRITE, &newstate);
- if (ret != 0)
- return ret;
- if (newstate != state)
- return -ESTALE;
- }
- if (state->n_wronly != 0) {
- ret = nfs4_open_recover_helper(opendata, FMODE_WRITE, &newstate);
- if (ret != 0)
- return ret;
- if (newstate != state)
- return -ESTALE;
- }
- if (state->n_rdonly != 0) {
- ret = nfs4_open_recover_helper(opendata, FMODE_READ, &newstate);
- if (ret != 0)
- return ret;
- if (newstate != state)
- return -ESTALE;
- }
+ ret = nfs4_open_recover_helper(opendata, FMODE_READ|FMODE_WRITE);
+ if (ret != 0)
+ return ret;
+ ret = nfs4_open_recover_helper(opendata, FMODE_WRITE);
+ if (ret != 0)
+ return ret;
+ ret = nfs4_open_recover_helper(opendata, FMODE_READ);
+ if (ret != 0)
+ return ret;
/*
* We may have performed cached opens for all three recoveries.
* Check if we need to update the current stateid.
@@ -1730,18 +1758,32 @@ static int nfs4_handle_delegation_recall_error(struct nfs_server *server, struct
return err;
}
-int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state *state, const nfs4_stateid *stateid)
+int nfs4_open_delegation_recall(struct nfs_open_context *ctx,
+ struct nfs4_state *state, const nfs4_stateid *stateid,
+ fmode_t type)
{
struct nfs_server *server = NFS_SERVER(state->inode);
struct nfs4_opendata *opendata;
- int err;
+ int err = 0;
opendata = nfs4_open_recoverdata_alloc(ctx, state,
NFS4_OPEN_CLAIM_DELEG_CUR_FH);
if (IS_ERR(opendata))
return PTR_ERR(opendata);
nfs4_stateid_copy(&opendata->o_arg.u.delegation, stateid);
- err = nfs4_open_recover(opendata, state);
+ clear_bit(NFS_DELEGATED_STATE, &state->flags);
+ switch (type & (FMODE_READ|FMODE_WRITE)) {
+ case FMODE_READ|FMODE_WRITE:
+ case FMODE_WRITE:
+ err = nfs4_open_recover_helper(opendata, FMODE_READ|FMODE_WRITE);
+ if (err)
+ break;
+ err = nfs4_open_recover_helper(opendata, FMODE_WRITE);
+ if (err)
+ break;
+ case FMODE_READ:
+ err = nfs4_open_recover_helper(opendata, FMODE_READ);
+ }
nfs4_opendata_put(opendata);
return nfs4_handle_delegation_recall_error(server, state, stateid, err);
}
@@ -1839,6 +1881,7 @@ static void nfs4_open_prepare(struct rpc_task *task, void *calldata)
struct nfs4_opendata *data = calldata;
struct nfs4_state_owner *sp = data->owner;
struct nfs_client *clp = sp->so_server->nfs_client;
+ enum open_claim_type4 claim = data->o_arg.claim;
if (nfs_wait_on_sequence(data->o_arg.seqid, task) != 0)
goto out_wait;
@@ -1853,15 +1896,15 @@ static void nfs4_open_prepare(struct rpc_task *task, void *calldata)
goto out_no_action;
rcu_read_lock();
delegation = rcu_dereference(NFS_I(data->state->inode)->delegation);
- if (data->o_arg.claim != NFS4_OPEN_CLAIM_DELEGATE_CUR &&
- data->o_arg.claim != NFS4_OPEN_CLAIM_DELEG_CUR_FH &&
- can_open_delegated(delegation, data->o_arg.fmode))
+ if (can_open_delegated(delegation, data->o_arg.fmode, claim))
goto unlock_no_action;
rcu_read_unlock();
}
/* Update client id. */
data->o_arg.clientid = clp->cl_clientid;
- switch (data->o_arg.claim) {
+ switch (claim) {
+ default:
+ break;
case NFS4_OPEN_CLAIM_PREVIOUS:
case NFS4_OPEN_CLAIM_DELEG_CUR_FH:
case NFS4_OPEN_CLAIM_DELEG_PREV_FH:
@@ -2281,15 +2324,25 @@ static int nfs41_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *st
* fields corresponding to attributes that were used to store the verifier.
* Make sure we clobber those fields in the later setattr call
*/
-static inline void nfs4_exclusive_attrset(struct nfs4_opendata *opendata, struct iattr *sattr)
+static inline void nfs4_exclusive_attrset(struct nfs4_opendata *opendata,
+ struct iattr *sattr, struct nfs4_label **label)
{
- if ((opendata->o_res.attrset[1] & FATTR4_WORD1_TIME_ACCESS) &&
+ const u32 *attrset = opendata->o_res.attrset;
+
+ if ((attrset[1] & FATTR4_WORD1_TIME_ACCESS) &&
!(sattr->ia_valid & ATTR_ATIME_SET))
sattr->ia_valid |= ATTR_ATIME;
- if ((opendata->o_res.attrset[1] & FATTR4_WORD1_TIME_MODIFY) &&
+ if ((attrset[1] & FATTR4_WORD1_TIME_MODIFY) &&
!(sattr->ia_valid & ATTR_MTIME_SET))
sattr->ia_valid |= ATTR_MTIME;
+
+ /* Except MODE, it seems harmless of setting twice. */
+ if ((attrset[1] & FATTR4_WORD1_MODE))
+ sattr->ia_valid &= ~ATTR_MODE;
+
+ if (attrset[2] & FATTR4_WORD2_SECURITY_LABEL)
+ *label = NULL;
}
static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata,
@@ -2412,9 +2465,9 @@ static int _nfs4_do_open(struct inode *dir,
goto err_free_label;
state = ctx->state;
- if ((opendata->o_arg.open_flags & O_EXCL) &&
+ if ((opendata->o_arg.open_flags & (O_CREAT|O_EXCL)) == (O_CREAT|O_EXCL) &&
(opendata->o_arg.createmode != NFS4_CREATE_GUARDED)) {
- nfs4_exclusive_attrset(opendata, sattr);
+ nfs4_exclusive_attrset(opendata, sattr, &label);
nfs_fattr_init(opendata->o_res.f_attr);
status = nfs4_do_setattr(state->inode, cred,
@@ -2426,7 +2479,7 @@ static int _nfs4_do_open(struct inode *dir,
nfs_setsecurity(state->inode, opendata->o_res.f_attr, olabel);
}
}
- if (opendata->file_created)
+ if (opened && opendata->file_created)
*opened |= FILE_CREATED;
if (pnfs_use_threshold(ctx_th, opendata->f_attr.mdsthreshold, server)) {
@@ -2605,6 +2658,15 @@ out:
return err;
}
+static bool
+nfs4_wait_on_layoutreturn(struct inode *inode, struct rpc_task *task)
+{
+ if (inode == NULL || !nfs_have_layout(inode))
+ return false;
+
+ return pnfs_wait_on_layoutreturn(inode, task);
+}
+
struct nfs4_closedata {
struct inode *inode;
struct nfs4_state *state;
@@ -2648,7 +2710,7 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
switch (task->tk_status) {
case 0:
res_stateid = &calldata->res.stateid;
- if (calldata->arg.fmode == 0 && calldata->roc)
+ if (calldata->roc)
pnfs_roc_set_barrier(state->inode,
calldata->roc_barrier);
renew_lease(server, calldata->timestamp);
@@ -2671,7 +2733,8 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
goto out_release;
}
}
- nfs_clear_open_stateid(state, res_stateid, calldata->arg.fmode);
+ nfs_clear_open_stateid(state, &calldata->arg.stateid,
+ res_stateid, calldata->arg.fmode);
out_release:
nfs_release_seqid(calldata->arg.seqid);
nfs_refresh_inode(calldata->inode, calldata->res.fattr);
@@ -2722,14 +2785,16 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data)
goto out_no_action;
}
- if (calldata->arg.fmode == 0) {
- task->tk_msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_CLOSE];
- if (calldata->roc &&
- pnfs_roc_drain(inode, &calldata->roc_barrier, task)) {
- nfs_release_seqid(calldata->arg.seqid);
- goto out_wait;
- }
+ if (nfs4_wait_on_layoutreturn(inode, task)) {
+ nfs_release_seqid(calldata->arg.seqid);
+ goto out_wait;
}
+
+ if (calldata->arg.fmode == 0)
+ task->tk_msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_CLOSE];
+ if (calldata->roc)
+ pnfs_roc_get_barrier(inode, &calldata->roc_barrier);
+
calldata->arg.share_access =
nfs4_map_atomic_open_share(NFS_SERVER(inode),
calldata->arg.fmode, 0);
@@ -2870,8 +2935,10 @@ static void nfs4_close_context(struct nfs_open_context *ctx, int is_sync)
static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle)
{
+ u32 bitmask[3] = {}, minorversion = server->nfs_client->cl_minorversion;
struct nfs4_server_caps_arg args = {
.fhandle = fhandle,
+ .bitmask = bitmask,
};
struct nfs4_server_caps_res res = {};
struct rpc_message msg = {
@@ -2881,10 +2948,18 @@ static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *f
};
int status;
+ bitmask[0] = FATTR4_WORD0_SUPPORTED_ATTRS |
+ FATTR4_WORD0_FH_EXPIRE_TYPE |
+ FATTR4_WORD0_LINK_SUPPORT |
+ FATTR4_WORD0_SYMLINK_SUPPORT |
+ FATTR4_WORD0_ACLSUPPORT;
+ if (minorversion)
+ bitmask[2] = FATTR4_WORD2_SUPPATTR_EXCLCREAT;
+
status = nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0);
if (status == 0) {
/* Sanity check the server answers */
- switch (server->nfs_client->cl_minorversion) {
+ switch (minorversion) {
case 0:
res.attr_bitmask[1] &= FATTR4_WORD1_NFS40_MASK;
res.attr_bitmask[2] = 0;
@@ -2937,6 +3012,8 @@ static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *f
server->cache_consistency_bitmask[0] &= FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE;
server->cache_consistency_bitmask[1] &= FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY;
server->cache_consistency_bitmask[2] = 0;
+ memcpy(server->exclcreat_bitmask, res.exclcreat_bitmask,
+ sizeof(server->exclcreat_bitmask));
server->acl_bitmask = res.acl_bitmask;
server->fh_expire_type = res.fh_expire_type;
}
@@ -3539,7 +3616,6 @@ nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
struct nfs4_label l, *ilabel = NULL;
struct nfs_open_context *ctx;
struct nfs4_state *state;
- int opened = 0;
int status = 0;
ctx = alloc_nfs_open_context(dentry, FMODE_READ);
@@ -3549,7 +3625,7 @@ nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
ilabel = nfs4_label_init_security(dir, dentry, sattr, &l);
sattr->ia_mode &= ~current_umask();
- state = nfs4_do_open(dir, ctx, flags, sattr, ilabel, &opened);
+ state = nfs4_do_open(dir, ctx, flags, sattr, ilabel, NULL);
if (IS_ERR(state)) {
status = PTR_ERR(state);
goto out;
@@ -4965,13 +5041,12 @@ nfs4_init_nonuniform_client_string(struct nfs_client *clp)
int result;
size_t len;
char *str;
- bool retried = false;
if (clp->cl_owner_id != NULL)
return 0;
-retry:
+
rcu_read_lock();
- len = 10 + strlen(clp->cl_ipaddr) + 1 +
+ len = 14 + strlen(clp->cl_ipaddr) + 1 +
strlen(rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_ADDR)) +
1 +
strlen(rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_PROTO)) +
@@ -4997,14 +5072,6 @@ retry:
rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_PROTO));
rcu_read_unlock();
- /* Did something change? */
- if (result >= len) {
- kfree(str);
- if (retried)
- return -EINVAL;
- retried = true;
- goto retry;
- }
clp->cl_owner_id = str;
return 0;
}
@@ -5036,10 +5103,6 @@ nfs4_init_uniquifier_client_string(struct nfs_client *clp)
clp->rpc_ops->version, clp->cl_minorversion,
nfs4_client_id_uniquifier,
clp->cl_rpcclient->cl_nodename);
- if (result >= len) {
- kfree(str);
- return -EINVAL;
- }
clp->cl_owner_id = str;
return 0;
}
@@ -5075,10 +5138,6 @@ nfs4_init_uniform_client_string(struct nfs_client *clp)
result = scnprintf(str, len, "Linux NFSv%u.%u %s",
clp->rpc_ops->version, clp->cl_minorversion,
clp->cl_rpcclient->cl_nodename);
- if (result >= len) {
- kfree(str);
- return -EINVAL;
- }
clp->cl_owner_id = str;
return 0;
}
@@ -5276,10 +5335,12 @@ static void nfs4_delegreturn_prepare(struct rpc_task *task, void *data)
d_data = (struct nfs4_delegreturndata *)data;
- if (d_data->roc &&
- pnfs_roc_drain(d_data->inode, &d_data->roc_barrier, task))
+ if (nfs4_wait_on_layoutreturn(d_data->inode, task))
return;
+ if (d_data->roc)
+ pnfs_roc_get_barrier(d_data->inode, &d_data->roc_barrier);
+
nfs4_setup_sequence(d_data->res.server,
&d_data->args.seq_args,
&d_data->res.seq_res,
@@ -7571,13 +7632,8 @@ static int nfs4_proc_sequence(struct nfs_client *clp, struct rpc_cred *cred)
goto out;
}
ret = rpc_wait_for_completion_task(task);
- if (!ret) {
- struct nfs4_sequence_res *res = task->tk_msg.rpc_resp;
-
- if (task->tk_status == 0)
- nfs41_handle_sequence_flag_errors(clp, res->sr_status_flags);
+ if (!ret)
ret = task->tk_status;
- }
rpc_put_task(task);
out:
dprintk("<-- %s status=%d\n", __func__, ret);
@@ -7738,10 +7794,19 @@ static void nfs4_layoutget_done(struct rpc_task *task, void *calldata)
case 0:
goto out;
/*
+ * NFS4ERR_BADLAYOUT means the MDS cannot return a layout of
+ * length lgp->args.minlength != 0 (see RFC5661 section 18.43.3).
+ */
+ case -NFS4ERR_BADLAYOUT:
+ goto out_overflow;
+ /*
* NFS4ERR_LAYOUTTRYLATER is a conflict with another client
- * (or clients) writing to the same RAID stripe
+ * (or clients) writing to the same RAID stripe except when
+ * the minlength argument is 0 (see RFC5661 section 18.43.3).
*/
case -NFS4ERR_LAYOUTTRYLATER:
+ if (lgp->args.minlength == 0)
+ goto out_overflow;
/*
* NFS4ERR_RECALLCONFLICT is when conflict with self (must recall
* existing layout before getting a new one).
@@ -7765,38 +7830,49 @@ static void nfs4_layoutget_done(struct rpc_task *task, void *calldata)
dprintk("%s: NFS4ERR_RECALLCONFLICT waiting %lu\n",
__func__, delay);
rpc_delay(task, delay);
- task->tk_status = 0;
- rpc_restart_call_prepare(task);
- goto out; /* Do not call nfs4_async_handle_error() */
+ /* Do not call nfs4_async_handle_error() */
+ goto out_restart;
}
break;
case -NFS4ERR_EXPIRED:
case -NFS4ERR_BAD_STATEID:
spin_lock(&inode->i_lock);
- lo = NFS_I(inode)->layout;
- if (!lo || list_empty(&lo->plh_segs)) {
+ if (nfs4_stateid_match(&lgp->args.stateid,
+ &lgp->args.ctx->state->stateid)) {
spin_unlock(&inode->i_lock);
/* If the open stateid was bad, then recover it. */
state = lgp->args.ctx->state;
- } else {
+ break;
+ }
+ lo = NFS_I(inode)->layout;
+ if (lo && nfs4_stateid_match(&lgp->args.stateid,
+ &lo->plh_stateid)) {
LIST_HEAD(head);
/*
* Mark the bad layout state as invalid, then retry
* with the current stateid.
*/
+ set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags);
pnfs_mark_matching_lsegs_invalid(lo, &head, NULL);
spin_unlock(&inode->i_lock);
pnfs_free_lseg_list(&head);
-
- task->tk_status = 0;
- rpc_restart_call_prepare(task);
- }
+ } else
+ spin_unlock(&inode->i_lock);
+ goto out_restart;
}
if (nfs4_async_handle_error(task, server, state, NULL) == -EAGAIN)
- rpc_restart_call_prepare(task);
+ goto out_restart;
out:
dprintk("<-- %s\n", __func__);
+ return;
+out_restart:
+ task->tk_status = 0;
+ rpc_restart_call_prepare(task);
+ return;
+out_overflow:
+ task->tk_status = -EOVERFLOW;
+ goto out;
}
static size_t max_response_pages(struct nfs_server *server)
@@ -7965,16 +8041,17 @@ static void nfs4_layoutreturn_release(void *calldata)
{
struct nfs4_layoutreturn *lrp = calldata;
struct pnfs_layout_hdr *lo = lrp->args.layout;
+ LIST_HEAD(freeme);
dprintk("--> %s\n", __func__);
spin_lock(&lo->plh_inode->i_lock);
if (lrp->res.lrs_present)
pnfs_set_layout_stateid(lo, &lrp->res.stateid, true);
+ pnfs_mark_matching_lsegs_invalid(lo, &freeme, &lrp->args.range);
pnfs_clear_layoutreturn_waitbit(lo);
- clear_bit(NFS_LAYOUT_RETURN_BEFORE_CLOSE, &lo->plh_flags);
- rpc_wake_up(&NFS_SERVER(lo->plh_inode)->roc_rpcwaitq);
lo->plh_block_lgets--;
spin_unlock(&lo->plh_inode->i_lock);
+ pnfs_free_lseg_list(&freeme);
pnfs_put_layout_hdr(lrp->args.layout);
nfs_iput_and_deactive(lrp->inode);
kfree(calldata);
@@ -8588,7 +8665,6 @@ static const struct nfs4_minor_version_ops nfs_v4_0_minor_ops = {
.minor_version = 0,
.init_caps = NFS_CAP_READDIRPLUS
| NFS_CAP_ATOMIC_OPEN
- | NFS_CAP_CHANGE_ATTR
| NFS_CAP_POSIX_LOCK,
.init_client = nfs40_init_client,
.shutdown_client = nfs40_shutdown_client,
@@ -8614,7 +8690,6 @@ static const struct nfs4_minor_version_ops nfs_v4_1_minor_ops = {
.minor_version = 1,
.init_caps = NFS_CAP_READDIRPLUS
| NFS_CAP_ATOMIC_OPEN
- | NFS_CAP_CHANGE_ATTR
| NFS_CAP_POSIX_LOCK
| NFS_CAP_STATEID_NFSV41
| NFS_CAP_ATOMIC_OPEN_V1,
@@ -8637,7 +8712,6 @@ static const struct nfs4_minor_version_ops nfs_v4_2_minor_ops = {
.minor_version = 2,
.init_caps = NFS_CAP_READDIRPLUS
| NFS_CAP_ATOMIC_OPEN
- | NFS_CAP_CHANGE_ATTR
| NFS_CAP_POSIX_LOCK
| NFS_CAP_STATEID_NFSV41
| NFS_CAP_ATOMIC_OPEN_V1
@@ -8655,6 +8729,7 @@ static const struct nfs4_minor_version_ops nfs_v4_2_minor_ops = {
.reboot_recovery_ops = &nfs41_reboot_recovery_ops,
.nograce_recovery_ops = &nfs41_nograce_recovery_ops,
.state_renewal_ops = &nfs41_state_renewal_ops,
+ .mig_recovery_ops = &nfs41_mig_recovery_ops,
};
#endif
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.