diff options
Diffstat (limited to 'fs/nfs/nfs4proc.c')
-rw-r--r-- | fs/nfs/nfs4proc.c | 197 |
1 files changed, 103 insertions, 94 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 450bfed..397be39 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -1068,6 +1068,7 @@ static void nfs4_opendata_free(struct kref *kref) dput(p->dentry); nfs_sb_deactive(sb); nfs_fattr_free_names(&p->f_attr); + kfree(p->f_attr.mdsthreshold); kfree(p); } @@ -1137,12 +1138,71 @@ static void update_open_stateflags(struct nfs4_state *state, fmode_t fmode) nfs4_state_set_mode_locked(state, state->state | fmode); } -static void nfs_set_open_stateid_locked(struct nfs4_state *state, nfs4_stateid *stateid, fmode_t fmode) +static void nfs_test_and_clear_all_open_stateid(struct nfs4_state *state) +{ + struct nfs_client *clp = state->owner->so_server->nfs_client; + bool need_recover = false; + + if (test_and_clear_bit(NFS_O_RDONLY_STATE, &state->flags) && state->n_rdonly) + need_recover = true; + if (test_and_clear_bit(NFS_O_WRONLY_STATE, &state->flags) && state->n_wronly) + need_recover = true; + if (test_and_clear_bit(NFS_O_RDWR_STATE, &state->flags) && state->n_rdwr) + need_recover = true; + if (need_recover) + nfs4_state_mark_reclaim_nograce(clp, state); +} + +static bool nfs_need_update_open_stateid(struct nfs4_state *state, + nfs4_stateid *stateid) +{ + if (test_and_set_bit(NFS_OPEN_STATE, &state->flags) == 0) + return true; + if (!nfs4_stateid_match_other(stateid, &state->open_stateid)) { + nfs_test_and_clear_all_open_stateid(state); + return true; + } + if (nfs4_stateid_is_newer(stateid, &state->open_stateid)) + return true; + return false; +} + +static void nfs_clear_open_stateid_locked(struct nfs4_state *state, + nfs4_stateid *stateid, fmode_t fmode) { + clear_bit(NFS_O_RDWR_STATE, &state->flags); + switch (fmode & (FMODE_READ|FMODE_WRITE)) { + case FMODE_WRITE: + clear_bit(NFS_O_RDONLY_STATE, &state->flags); + break; + case FMODE_READ: + clear_bit(NFS_O_WRONLY_STATE, &state->flags); + break; + case 0: + clear_bit(NFS_O_RDONLY_STATE, &state->flags); + clear_bit(NFS_O_WRONLY_STATE, &state->flags); + clear_bit(NFS_OPEN_STATE, &state->flags); + } + if (stateid == NULL) + return; + if (!nfs_need_update_open_stateid(state, stateid)) + return; if (test_bit(NFS_DELEGATED_STATE, &state->flags) == 0) nfs4_stateid_copy(&state->stateid, stateid); nfs4_stateid_copy(&state->open_stateid, stateid); - set_bit(NFS_OPEN_STATE, &state->flags); +} + +static void nfs_clear_open_stateid(struct nfs4_state *state, nfs4_stateid *stateid, fmode_t fmode) +{ + write_seqlock(&state->seqlock); + nfs_clear_open_stateid_locked(state, 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); +} + +static void nfs_set_open_stateid_locked(struct nfs4_state *state, nfs4_stateid *stateid, fmode_t fmode) +{ switch (fmode) { case FMODE_READ: set_bit(NFS_O_RDONLY_STATE, &state->flags); @@ -1153,13 +1213,11 @@ static void nfs_set_open_stateid_locked(struct nfs4_state *state, nfs4_stateid * case FMODE_READ|FMODE_WRITE: set_bit(NFS_O_RDWR_STATE, &state->flags); } -} - -static void nfs_set_open_stateid(struct nfs4_state *state, nfs4_stateid *stateid, fmode_t fmode) -{ - write_seqlock(&state->seqlock); - nfs_set_open_stateid_locked(state, stateid, fmode); - write_sequnlock(&state->seqlock); + if (!nfs_need_update_open_stateid(state, stateid)) + return; + if (test_bit(NFS_DELEGATED_STATE, &state->flags) == 0) + nfs4_stateid_copy(&state->stateid, stateid); + nfs4_stateid_copy(&state->open_stateid, stateid); } static void __update_open_stateid(struct nfs4_state *state, nfs4_stateid *open_stateid, const nfs4_stateid *deleg_stateid, fmode_t fmode) @@ -1217,6 +1275,8 @@ no_delegation: __update_open_stateid(state, open_stateid, NULL, fmode); ret = 1; } + if (test_bit(NFS_STATE_RECLAIM_NOGRACE, &state->flags)) + nfs4_schedule_state_manager(state->owner->so_server->nfs_client); return ret; } @@ -1450,12 +1510,15 @@ static int nfs4_open_recover(struct nfs4_opendata *opendata, struct nfs4_state * struct nfs4_state *newstate; int ret; + /* Don't trigger recovery in nfs_test_and_clear_all_open_stateid */ + clear_bit(NFS_O_RDWR_STATE, &state->flags); + clear_bit(NFS_O_WRONLY_STATE, &state->flags); + clear_bit(NFS_O_RDONLY_STATE, &state->flags); /* memory barrier prior to reading state->n_* */ clear_bit(NFS_DELEGATED_STATE, &state->flags); clear_bit(NFS_OPEN_STATE, &state->flags); smp_rmb(); if (state->n_rdwr != 0) { - clear_bit(NFS_O_RDWR_STATE, &state->flags); ret = nfs4_open_recover_helper(opendata, FMODE_READ|FMODE_WRITE, &newstate); if (ret != 0) return ret; @@ -1463,7 +1526,6 @@ static int nfs4_open_recover(struct nfs4_opendata *opendata, struct nfs4_state * return -ESTALE; } if (state->n_wronly != 0) { - clear_bit(NFS_O_WRONLY_STATE, &state->flags); ret = nfs4_open_recover_helper(opendata, FMODE_WRITE, &newstate); if (ret != 0) return ret; @@ -1471,7 +1533,6 @@ static int nfs4_open_recover(struct nfs4_opendata *opendata, struct nfs4_state * return -ESTALE; } if (state->n_rdonly != 0) { - clear_bit(NFS_O_RDONLY_STATE, &state->flags); ret = nfs4_open_recover_helper(opendata, FMODE_READ, &newstate); if (ret != 0) return ret; @@ -2244,10 +2305,12 @@ static int _nfs4_do_open(struct inode *dir, } } - if (ctx_th && server->attr_bitmask[2] & FATTR4_WORD2_MDSTHRESHOLD) { - opendata->f_attr.mdsthreshold = pnfs_mdsthreshold_alloc(); - if (!opendata->f_attr.mdsthreshold) - goto err_free_label; + if (server->attr_bitmask[2] & FATTR4_WORD2_MDSTHRESHOLD) { + if (!opendata->f_attr.mdsthreshold) { + opendata->f_attr.mdsthreshold = pnfs_mdsthreshold_alloc(); + if (!opendata->f_attr.mdsthreshold) + goto err_free_label; + } opendata->o_arg.open_bitmap = &nfs4_pnfs_open_bitmap[0]; } if (dentry->d_inode != NULL) @@ -2275,11 +2338,10 @@ static int _nfs4_do_open(struct inode *dir, if (opendata->file_created) *opened |= FILE_CREATED; - if (pnfs_use_threshold(ctx_th, opendata->f_attr.mdsthreshold, server)) + if (pnfs_use_threshold(ctx_th, opendata->f_attr.mdsthreshold, server)) { *ctx_th = opendata->f_attr.mdsthreshold; - else - kfree(opendata->f_attr.mdsthreshold); - opendata->f_attr.mdsthreshold = NULL; + opendata->f_attr.mdsthreshold = NULL; + } nfs4_label_free(olabel); @@ -2289,7 +2351,6 @@ static int _nfs4_do_open(struct inode *dir, err_free_label: nfs4_label_free(olabel); err_opendata_put: - kfree(opendata->f_attr.mdsthreshold); nfs4_opendata_put(opendata); err_put_state_owner: nfs4_put_state_owner(sp); @@ -2479,26 +2540,6 @@ static void nfs4_free_closedata(void *data) kfree(calldata); } -static void nfs4_close_clear_stateid_flags(struct nfs4_state *state, - fmode_t fmode) -{ - spin_lock(&state->owner->so_lock); - clear_bit(NFS_O_RDWR_STATE, &state->flags); - switch (fmode & (FMODE_READ|FMODE_WRITE)) { - case FMODE_WRITE: - clear_bit(NFS_O_RDONLY_STATE, &state->flags); - break; - case FMODE_READ: - clear_bit(NFS_O_WRONLY_STATE, &state->flags); - break; - case 0: - clear_bit(NFS_O_RDONLY_STATE, &state->flags); - clear_bit(NFS_O_WRONLY_STATE, &state->flags); - clear_bit(NFS_OPEN_STATE, &state->flags); - } - spin_unlock(&state->owner->so_lock); -} - static void nfs4_close_done(struct rpc_task *task, void *data) { struct nfs4_closedata *calldata = data; @@ -2517,9 +2558,9 @@ static void nfs4_close_done(struct rpc_task *task, void *data) if (calldata->roc) pnfs_roc_set_barrier(state->inode, calldata->roc_barrier); - nfs_set_open_stateid(state, &calldata->res.stateid, 0); + nfs_clear_open_stateid(state, &calldata->res.stateid, 0); renew_lease(server, calldata->timestamp); - break; + goto out_release; case -NFS4ERR_ADMIN_REVOKED: case -NFS4ERR_STALE_STATEID: case -NFS4ERR_OLD_STATEID: @@ -2533,7 +2574,7 @@ static void nfs4_close_done(struct rpc_task *task, void *data) goto out_release; } } - nfs4_close_clear_stateid_flags(state, calldata->arg.fmode); + nfs_clear_open_stateid(state, NULL, calldata->arg.fmode); out_release: nfs_release_seqid(calldata->arg.seqid); nfs_refresh_inode(calldata->inode, calldata->res.fattr); @@ -3507,49 +3548,6 @@ static int nfs4_proc_rename_done(struct rpc_task *task, struct inode *old_dir, return 1; } -static int _nfs4_proc_rename(struct inode *old_dir, struct qstr *old_name, - struct inode *new_dir, struct qstr *new_name) -{ - struct nfs_server *server = NFS_SERVER(old_dir); - struct nfs_renameargs arg = { - .old_dir = NFS_FH(old_dir), - .new_dir = NFS_FH(new_dir), - .old_name = old_name, - .new_name = new_name, - }; - struct nfs_renameres res = { - .server = server, - }; - struct rpc_message msg = { - .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_RENAME], - .rpc_argp = &arg, - .rpc_resp = &res, - }; - int status = -ENOMEM; - - status = nfs4_call_sync(server->client, server, &msg, &arg.seq_args, &res.seq_res, 1); - if (!status) { - update_changeattr(old_dir, &res.old_cinfo); - update_changeattr(new_dir, &res.new_cinfo); - } - return status; -} - -static int nfs4_proc_rename(struct inode *old_dir, struct qstr *old_name, - struct inode *new_dir, struct qstr *new_name) -{ - struct nfs4_exception exception = { }; - int err; - do { - err = _nfs4_proc_rename(old_dir, old_name, - new_dir, new_name); - trace_nfs4_rename(old_dir, old_name, new_dir, new_name, err); - err = nfs4_handle_exception(NFS_SERVER(old_dir), err, - &exception); - } while (exception.retry); - return err; -} - static int _nfs4_proc_link(struct inode *inode, struct inode *dir, struct qstr *name) { struct nfs_server *server = NFS_SERVER(inode); @@ -4884,6 +4882,20 @@ nfs4_init_uniform_client_string(const struct nfs_client *clp, nodename); } +/* + * nfs4_callback_up_net() starts only "tcp" and "tcp6" callback + * services. Advertise one based on the address family of the + * clientaddr. + */ +static unsigned int +nfs4_init_callback_netid(const struct nfs_client *clp, char *buf, size_t len) +{ + if (strchr(clp->cl_ipaddr, ':') != NULL) + return scnprintf(buf, len, "tcp6"); + else + return scnprintf(buf, len, "tcp"); +} + /** * nfs4_proc_setclientid - Negotiate client ID * @clp: state data structure @@ -4925,12 +4937,10 @@ int nfs4_proc_setclientid(struct nfs_client *clp, u32 program, setclientid.sc_name, sizeof(setclientid.sc_name)); /* cb_client4 */ - rcu_read_lock(); - setclientid.sc_netid_len = scnprintf(setclientid.sc_netid, - sizeof(setclientid.sc_netid), "%s", - rpc_peeraddr2str(clp->cl_rpcclient, - RPC_DISPLAY_NETID)); - rcu_read_unlock(); + setclientid.sc_netid_len = + nfs4_init_callback_netid(clp, + setclientid.sc_netid, + sizeof(setclientid.sc_netid)); setclientid.sc_uaddr_len = scnprintf(setclientid.sc_uaddr, sizeof(setclientid.sc_uaddr), "%s.%u.%u", clp->cl_ipaddr, port >> 8, port & 255); @@ -8408,7 +8418,6 @@ const struct nfs_rpc_ops nfs_v4_clientops = { .unlink_setup = nfs4_proc_unlink_setup, .unlink_rpc_prepare = nfs4_proc_unlink_rpc_prepare, .unlink_done = nfs4_proc_unlink_done, - .rename = nfs4_proc_rename, .rename_setup = nfs4_proc_rename_setup, .rename_rpc_prepare = nfs4_proc_rename_rpc_prepare, .rename_done = nfs4_proc_rename_done, |