static struct file_lock_context *
locks_get_lock_context(struct inode *inode, int type)
{
- struct file_lock_context *new;
+ struct file_lock_context *ctx;
- if (likely(inode->i_flctx) || type == F_UNLCK)
+ /* paired with cmpxchg() below */
+ ctx = smp_load_acquire(&inode->i_flctx);
+ if (likely(ctx) || type == F_UNLCK)
goto out;
- new = kmem_cache_alloc(flctx_cache, GFP_KERNEL);
- if (!new)
+ ctx = kmem_cache_alloc(flctx_cache, GFP_KERNEL);
+ if (!ctx)
goto out;
- spin_lock_init(&new->flc_lock);
- INIT_LIST_HEAD(&new->flc_flock);
- INIT_LIST_HEAD(&new->flc_posix);
- INIT_LIST_HEAD(&new->flc_lease);
+ spin_lock_init(&ctx->flc_lock);
+ INIT_LIST_HEAD(&ctx->flc_flock);
+ INIT_LIST_HEAD(&ctx->flc_posix);
+ INIT_LIST_HEAD(&ctx->flc_lease);
/*
* Assign the pointer if it's not already assigned. If it is, then
* free the context we just allocated.
*/
- if (cmpxchg(&inode->i_flctx, NULL, new))
- kmem_cache_free(flctx_cache, new);
+ if (cmpxchg(&inode->i_flctx, NULL, ctx)) {
+ kmem_cache_free(flctx_cache, ctx);
+ ctx = smp_load_acquire(&inode->i_flctx);
+ }
out:
- return inode->i_flctx;
+ return ctx;
}
void
struct file_lock_context *ctx;
struct inode *inode = file_inode(filp);
- ctx = inode->i_flctx;
+ ctx = smp_load_acquire(&inode->i_flctx);
if (!ctx || list_empty_careful(&ctx->flc_posix)) {
fl->fl_type = F_UNLCK;
return;
* @inode: inode of file to which lock request should be applied
* @fl: The lock to be applied
*
- * Variant of posix_lock_file_wait that does not take a filp, and so can be
- * used after the filp has already been torn down.
+ * Apply a POSIX style lock request to an inode.
*/
- int posix_lock_inode_wait(struct inode *inode, struct file_lock *fl)
+ static int posix_lock_inode_wait(struct inode *inode, struct file_lock *fl)
{
int error;
might_sleep ();
}
return error;
}
- EXPORT_SYMBOL(posix_lock_inode_wait);
/**
* locks_mandatory_locked - Check for an active lock
struct file_lock_context *ctx;
struct file_lock *fl;
- ctx = inode->i_flctx;
+ ctx = smp_load_acquire(&inode->i_flctx);
if (!ctx || list_empty_careful(&ctx->flc_posix))
return 0;
int __break_lease(struct inode *inode, unsigned int mode, unsigned int type)
{
int error = 0;
- struct file_lock_context *ctx = inode->i_flctx;
+ struct file_lock_context *ctx;
struct file_lock *new_fl, *fl, *tmp;
unsigned long break_time;
int want_write = (mode & O_ACCMODE) != O_RDONLY;
new_fl->fl_flags = type;
/* typically we will check that ctx is non-NULL before calling */
+ ctx = smp_load_acquire(&inode->i_flctx);
if (!ctx) {
WARN_ON_ONCE(1);
return error;
void lease_get_mtime(struct inode *inode, struct timespec *time)
{
bool has_lease = false;
- struct file_lock_context *ctx = inode->i_flctx;
+ struct file_lock_context *ctx;
struct file_lock *fl;
+ ctx = smp_load_acquire(&inode->i_flctx);
if (ctx && !list_empty_careful(&ctx->flc_lease)) {
spin_lock(&ctx->flc_lock);
if (!list_empty(&ctx->flc_lease)) {
{
struct file_lock *fl;
struct inode *inode = file_inode(filp);
- struct file_lock_context *ctx = inode->i_flctx;
+ struct file_lock_context *ctx;
int type = F_UNLCK;
LIST_HEAD(dispose);
+ ctx = smp_load_acquire(&inode->i_flctx);
if (ctx && !list_empty_careful(&ctx->flc_lease)) {
spin_lock(&ctx->flc_lock);
time_out_leases(file_inode(filp), &dispose);
{
int error = -EAGAIN;
struct file_lock *fl, *victim = NULL;
- struct dentry *dentry = filp->f_path.dentry;
- struct inode *inode = dentry->d_inode;
- struct file_lock_context *ctx = inode->i_flctx;
+ struct inode *inode = file_inode(filp);
+ struct file_lock_context *ctx;
LIST_HEAD(dispose);
+ ctx = smp_load_acquire(&inode->i_flctx);
if (!ctx) {
trace_generic_delete_lease(inode, NULL);
return error;
int generic_setlease(struct file *filp, long arg, struct file_lock **flp,
void **priv)
{
- struct dentry *dentry = filp->f_path.dentry;
- struct inode *inode = dentry->d_inode;
+ struct inode *inode = file_inode(filp);
int error;
if ((!uid_eq(current_fsuid(), inode->i_uid)) && !capable(CAP_LEASE))
}
EXPORT_SYMBOL(generic_setlease);
+#if IS_ENABLED(CONFIG_SRCU)
+/*
+ * Kernel subsystems can register to be notified on any attempt to set
+ * a new lease with the lease_notifier_chain. This is used by (e.g.) nfsd
+ * to close files that it may have cached when there is an attempt to set a
+ * conflicting lease.
+ */
+struct srcu_notifier_head lease_notifier_chain;
+EXPORT_SYMBOL_GPL(lease_notifier_chain);
+
+static inline void
+lease_notifier_chain_init(void)
+{
+ srcu_init_notifier_head(&lease_notifier_chain);
+}
+
+static inline void
+setlease_notifier(long arg, struct file_lock *lease)
+{
+ if (arg != F_UNLCK)
+ srcu_notifier_call_chain(&lease_notifier_chain, arg, lease);
+}
+#else /* !IS_ENABLED(CONFIG_SRCU) */
+static inline void
+lease_notifier_chain_init(void)
+{
+}
+
+static inline void
+setlease_notifier(long arg, struct file_lock *lease)
+{
+}
+#endif /* IS_ENABLED(CONFIG_SRCU) */
+
/**
* vfs_setlease - sets a lease on an open file
* @filp: file pointer
int
vfs_setlease(struct file *filp, long arg, struct file_lock **lease, void **priv)
{
+ if (lease)
+ setlease_notifier(arg, *lease);
if (filp->f_op->setlease)
return filp->f_op->setlease(filp, arg, lease, priv);
else
*
* Apply a FLOCK style lock request to an inode.
*/
- int flock_lock_inode_wait(struct inode *inode, struct file_lock *fl)
+ static int flock_lock_inode_wait(struct inode *inode, struct file_lock *fl)
{
int error;
might_sleep();
}
return error;
}
- EXPORT_SYMBOL(flock_lock_inode_wait);
+
+ /**
+ * locks_lock_inode_wait - Apply a lock to an inode
+ * @inode: inode of the file to apply to
+ * @fl: The lock to be applied
+ *
+ * Apply a POSIX or FLOCK style lock request to an inode.
+ */
+ int locks_lock_inode_wait(struct inode *inode, struct file_lock *fl)
+ {
+ int res = 0;
+ switch (fl->fl_flags & (FL_POSIX|FL_FLOCK)) {
+ case FL_POSIX:
+ res = posix_lock_inode_wait(inode, fl);
+ break;
+ case FL_FLOCK:
+ res = flock_lock_inode_wait(inode, fl);
+ break;
+ default:
+ BUG();
+ }
+ return res;
+ }
+ EXPORT_SYMBOL(locks_lock_inode_wait);
/**
* sys_flock: - flock() system call.
(can_sleep) ? F_SETLKW : F_SETLK,
lock);
else
- error = flock_lock_file_wait(f.file, lock);
+ error = locks_lock_file_wait(f.file, lock);
out_free:
locks_free_lock(lock);
return error;
}
- /* Ensure that fl->fl_filp has compatible f_mode for F_SETLK calls */
+ /* Ensure that fl->fl_file has compatible f_mode for F_SETLK calls */
static int
check_fmode_for_setlk(struct file_lock *fl)
{
void locks_remove_posix(struct file *filp, fl_owner_t owner)
{
struct file_lock lock;
- struct file_lock_context *ctx = file_inode(filp)->i_flctx;
+ struct file_lock_context *ctx;
/*
* If there are no locks held on this file, we don't need to call
* posix_lock_file(). Another process could be setting a lock on this
* file at the same time, but we wouldn't remove that lock anyway.
*/
+ ctx = smp_load_acquire(&file_inode(filp)->i_flctx);
if (!ctx || list_empty(&ctx->flc_posix))
return;
/* The i_flctx must be valid when calling into here */
static void
- locks_remove_flock(struct file *filp)
+ locks_remove_flock(struct file *filp, struct file_lock_context *flctx)
{
struct file_lock fl = {
.fl_owner = filp,
.fl_end = OFFSET_MAX,
};
struct inode *inode = file_inode(filp);
- struct file_lock_context *flctx = inode->i_flctx;
if (list_empty(&flctx->flc_flock))
return;
/* The i_flctx must be valid when calling into here */
static void
- locks_remove_lease(struct file *filp)
+ locks_remove_lease(struct file *filp, struct file_lock_context *ctx)
{
- struct inode *inode = file_inode(filp);
- struct file_lock_context *ctx = inode->i_flctx;
struct file_lock *fl, *tmp;
LIST_HEAD(dispose);
*/
void locks_remove_file(struct file *filp)
{
- if (!file_inode(filp)->i_flctx)
+ struct file_lock_context *ctx;
+
+ ctx = smp_load_acquire(&file_inode(filp)->i_flctx);
+ if (!ctx)
return;
/* remove any OFD locks */
locks_remove_posix(filp, filp);
/* remove flock locks */
- locks_remove_flock(filp);
+ locks_remove_flock(filp, ctx);
/* remove any leases */
- locks_remove_lease(filp);
+ locks_remove_lease(filp, ctx);
}
/**
struct file_lock_context *ctx;
int id = 0;
- ctx = inode->i_flctx;
+ ctx = smp_load_acquire(&inode->i_flctx);
if (!ctx)
return;
for_each_possible_cpu(i)
INIT_HLIST_HEAD(per_cpu_ptr(&file_lock_list, i));
+ lease_notifier_chain_init();
return 0;
}
static int _nfs4_proc_open(struct nfs4_opendata *data);
static int _nfs4_recover_proc_open(struct nfs4_opendata *data);
static int nfs4_do_fsinfo(struct nfs_server *, struct nfs_fh *, struct nfs_fsinfo *);
-static int nfs4_async_handle_error(struct rpc_task *, const struct nfs_server *, struct nfs4_state *, long *);
static void nfs_fixup_referral_attributes(struct nfs_fattr *fattr);
static int nfs4_proc_getattr(struct nfs_server *, struct nfs_fh *, struct nfs_fattr *, struct nfs4_label *label);
static int _nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fattr *fattr, struct nfs4_label *label);
FATTR4_WORD1_TIME_DELTA
| FATTR4_WORD1_FS_LAYOUT_TYPES,
FATTR4_WORD2_LAYOUT_BLKSIZE
+ | FATTR4_WORD2_CLONE_BLKSIZE
};
const u32 nfs4_fs_locations_bitmap[3] = {
/* This is the error handling routine for processes that are allowed
* to sleep.
*/
-int nfs4_handle_exception(struct nfs_server *server, int errorcode, struct nfs4_exception *exception)
+static int nfs4_do_handle_exception(struct nfs_server *server,
+ int errorcode, struct nfs4_exception *exception)
{
struct nfs_client *clp = server->nfs_client;
struct nfs4_state *state = exception->state;
struct inode *inode = exception->inode;
int ret = errorcode;
+ exception->delay = 0;
+ exception->recovering = 0;
exception->retry = 0;
switch(errorcode) {
case 0:
case -NFS4ERR_DELEG_REVOKED:
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_BAD_STATEID:
- if (inode && nfs4_have_delegation(inode, FMODE_READ)) {
- nfs4_inode_return_delegation(inode);
- exception->retry = 1;
- return 0;
- }
+ if (inode && nfs_async_inode_return_delegation(inode,
+ NULL) == 0)
+ goto wait_on_recovery;
if (state == NULL)
break;
ret = nfs4_schedule_stateid_recovery(server, state);
ret = -EBUSY;
break;
}
- case -NFS4ERR_GRACE:
case -NFS4ERR_DELAY:
- ret = nfs4_delay(server->client, &exception->timeout);
- if (ret != 0)
- break;
+ nfs_inc_server_stats(server, NFSIOS_DELAY);
+ case -NFS4ERR_GRACE:
+ exception->delay = 1;
+ return 0;
+
case -NFS4ERR_RETRY_UNCACHED_REP:
case -NFS4ERR_OLD_STATEID:
exception->retry = 1;
/* We failed to handle the error */
return nfs4_map_errors(ret);
wait_on_recovery:
- ret = nfs4_wait_clnt_recover(clp);
+ exception->recovering = 1;
+ return 0;
+}
+
+/* This is the error handling routine for processes that are allowed
+ * to sleep.
+ */
+int nfs4_handle_exception(struct nfs_server *server, int errorcode, struct nfs4_exception *exception)
+{
+ struct nfs_client *clp = server->nfs_client;
+ int ret;
+
+ ret = nfs4_do_handle_exception(server, errorcode, exception);
+ if (exception->delay) {
+ ret = nfs4_delay(server->client, &exception->timeout);
+ goto out_retry;
+ }
+ if (exception->recovering) {
+ ret = nfs4_wait_clnt_recover(clp);
+ if (test_bit(NFS_MIG_FAILED, &server->mig_status))
+ return -EIO;
+ goto out_retry;
+ }
+ return ret;
+out_retry:
+ if (ret == 0)
+ exception->retry = 1;
+ return ret;
+}
+
+static int
+nfs4_async_handle_exception(struct rpc_task *task, struct nfs_server *server,
+ int errorcode, struct nfs4_exception *exception)
+{
+ struct nfs_client *clp = server->nfs_client;
+ int ret;
+
+ ret = nfs4_do_handle_exception(server, errorcode, exception);
+ if (exception->delay) {
+ rpc_delay(task, nfs4_update_delay(&exception->timeout));
+ goto out_retry;
+ }
+ if (exception->recovering) {
+ rpc_sleep_on(&clp->cl_rpcwaitq, task, NULL);
+ if (test_bit(NFS4CLNT_MANAGER_RUNNING, &clp->cl_state) == 0)
+ rpc_wake_up_queued_task(&clp->cl_rpcwaitq, task);
+ goto out_retry;
+ }
if (test_bit(NFS_MIG_FAILED, &server->mig_status))
- return -EIO;
+ ret = -EIO;
+ return ret;
+out_retry:
if (ret == 0)
exception->retry = 1;
return ret;
}
+static int
+nfs4_async_handle_error(struct rpc_task *task, struct nfs_server *server,
+ struct nfs4_state *state, long *timeout)
+{
+ struct nfs4_exception exception = {
+ .state = state,
+ };
+
+ if (task->tk_status >= 0)
+ return 0;
+ if (timeout)
+ exception.timeout = *timeout;
+ task->tk_status = nfs4_async_handle_exception(task, server,
+ task->tk_status,
+ &exception);
+ if (exception.delay && timeout)
+ *timeout = exception.timeout;
+ if (exception.retry)
+ return -EAGAIN;
+ return 0;
+}
+
/*
* Return 'true' if 'clp' is using an rpc_client that is integrity protected
* or 'false' otherwise.
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;
if (delegation)
delegation_flags = delegation->flags;
rcu_read_unlock();
- if (data->o_arg.claim == NFS4_OPEN_CLAIM_DELEGATE_CUR) {
+ switch (data->o_arg.claim) {
+ default:
+ break;
+ case NFS4_OPEN_CLAIM_DELEGATE_CUR:
+ case NFS4_OPEN_CLAIM_DELEG_CUR_FH:
pr_err_ratelimited("NFS: Broken NFSv4 server %s is "
"returning a delegation for "
"OPEN(CLAIM_DELEGATE_CUR)\n",
clp->cl_hostname);
- } else if ((delegation_flags & 1UL<<NFS_DELEGATION_NEED_RECLAIM) == 0)
+ return;
+ }
+ if ((delegation_flags & 1UL<<NFS_DELEGATION_NEED_RECLAIM) == 0)
nfs_inode_set_delegation(state->inode,
data->owner->so_cred,
&data->o_res);
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;
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 */
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.
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);
+ write_seqlock(&state->seqlock);
+ nfs4_stateid_copy(&state->stateid, &state->open_stateid);
+ write_sequnlock(&state->seqlock);
+ 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);
}
data->rpc_done = 0;
data->rpc_status = 0;
data->timestamp = jiffies;
+ if (data->is_recover)
+ nfs4_set_sequence_privileged(&data->c_arg.seq_args);
task = rpc_run_task(&task_setup_data);
if (IS_ERR(task))
return PTR_ERR(task);
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;
goto out_no_action;
}
+ 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)
#define NFS4ACL_MAXPAGES DIV_ROUND_UP(XATTR_SIZE_MAX, PAGE_SIZE)
static int buf_to_pages_noslab(const void *buf, size_t buflen,
- struct page **pages, unsigned int *pgbase)
+ struct page **pages)
{
struct page *newpage, **spages;
int rc = 0;
goto out_free;
args.acl_len = npages * PAGE_SIZE;
- args.acl_pgbase = 0;
dprintk("%s buf %p buflen %zu npages %d args.acl_len %zu\n",
__func__, buf, buflen, npages, args.acl_len);
return -EOPNOTSUPP;
if (npages > ARRAY_SIZE(pages))
return -ERANGE;
- i = buf_to_pages_noslab(buf, buflen, arg.acl_pages, &arg.acl_pgbase);
+ i = buf_to_pages_noslab(buf, buflen, arg.acl_pages);
if (i < 0)
return i;
nfs4_inode_return_delegation(inode);
#endif /* CONFIG_NFS_V4_SECURITY_LABEL */
-static int
-nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server,
- struct nfs4_state *state, long *timeout)
-{
- struct nfs_client *clp = server->nfs_client;
-
- if (task->tk_status >= 0)
- return 0;
- switch(task->tk_status) {
- case -NFS4ERR_DELEG_REVOKED:
- case -NFS4ERR_ADMIN_REVOKED:
- case -NFS4ERR_BAD_STATEID:
- case -NFS4ERR_OPENMODE:
- if (state == NULL)
- break;
- if (nfs4_schedule_stateid_recovery(server, state) < 0)
- goto recovery_failed;
- goto wait_on_recovery;
- case -NFS4ERR_EXPIRED:
- if (state != NULL) {
- if (nfs4_schedule_stateid_recovery(server, state) < 0)
- goto recovery_failed;
- }
- case -NFS4ERR_STALE_STATEID:
- case -NFS4ERR_STALE_CLIENTID:
- nfs4_schedule_lease_recovery(clp);
- goto wait_on_recovery;
- case -NFS4ERR_MOVED:
- if (nfs4_schedule_migration_recovery(server) < 0)
- goto recovery_failed;
- goto wait_on_recovery;
- case -NFS4ERR_LEASE_MOVED:
- nfs4_schedule_lease_moved_recovery(clp);
- goto wait_on_recovery;
-#if defined(CONFIG_NFS_V4_1)
- case -NFS4ERR_BADSESSION:
- case -NFS4ERR_BADSLOT:
- case -NFS4ERR_BAD_HIGH_SLOT:
- case -NFS4ERR_DEADSESSION:
- case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
- case -NFS4ERR_SEQ_FALSE_RETRY:
- case -NFS4ERR_SEQ_MISORDERED:
- dprintk("%s ERROR %d, Reset session\n", __func__,
- task->tk_status);
- nfs4_schedule_session_recovery(clp->cl_session, task->tk_status);
- goto wait_on_recovery;
-#endif /* CONFIG_NFS_V4_1 */
- case -NFS4ERR_DELAY:
- nfs_inc_server_stats(server, NFSIOS_DELAY);
- rpc_delay(task, nfs4_update_delay(timeout));
- goto restart_call;
- case -NFS4ERR_GRACE:
- rpc_delay(task, NFS4_POLL_RETRY_MAX);
- case -NFS4ERR_RETRY_UNCACHED_REP:
- case -NFS4ERR_OLD_STATEID:
- goto restart_call;
- }
- task->tk_status = nfs4_map_errors(task->tk_status);
- return 0;
-recovery_failed:
- task->tk_status = -EIO;
- return 0;
-wait_on_recovery:
- rpc_sleep_on(&clp->cl_rpcwaitq, task, NULL);
- if (test_bit(NFS4CLNT_MANAGER_RUNNING, &clp->cl_state) == 0)
- rpc_wake_up_queued_task(&clp->cl_rpcwaitq, task);
- if (test_bit(NFS_MIG_FAILED, &server->mig_status))
- goto recovery_failed;
-restart_call:
- task->tk_status = 0;
- return -EAGAIN;
-}
-
static void nfs4_init_boot_verifier(const struct nfs_client *clp,
nfs4_verifier *bootverf)
{
d_data = (struct nfs4_delegreturndata *)data;
+ 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);
static int do_vfs_lock(struct inode *inode, struct file_lock *fl)
{
- int res = 0;
- switch (fl->fl_flags & (FL_POSIX|FL_FLOCK)) {
- case FL_POSIX:
- res = posix_lock_inode_wait(inode, fl);
- break;
- case FL_FLOCK:
- res = flock_lock_inode_wait(inode, fl);
- break;
- default:
- BUG();
- }
- return res;
+ return locks_lock_inode_wait(inode, fl);
}
struct nfs4_unlockdata {
struct nfs4_lock_state *lsp;
struct nfs_open_context *ctx;
struct file_lock fl;
- const struct nfs_server *server;
+ struct nfs_server *server;
unsigned long timestamp;
};
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;
| NFS_CAP_ALLOCATE
| NFS_CAP_DEALLOCATE
| NFS_CAP_SEEK
- | NFS_CAP_LAYOUTSTATS,
+ | NFS_CAP_LAYOUTSTATS
+ | NFS_CAP_CLONE,
.init_client = nfs41_init_client,
.shutdown_client = nfs41_shutdown_client,
.match_stateid = nfs41_match_stateid,
projects / karo-tx-linux.git / commitdiff