diff options
Diffstat (limited to 'fs/nfs/nfs4proc.c')
| -rw-r--r-- | fs/nfs/nfs4proc.c | 895 |
1 files changed, 632 insertions, 263 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 40d749f29ed3..93c6ce04332b 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -103,10 +103,10 @@ static struct rpc_task *_nfs41_proc_sequence(struct nfs_client *clp, const struct cred *cred, struct nfs4_slot *slot, bool is_privileged); -static int nfs41_test_stateid(struct nfs_server *, nfs4_stateid *, - const struct cred *); -static int nfs41_free_stateid(struct nfs_server *, const nfs4_stateid *, - const struct cred *, bool); +static int nfs41_test_stateid(struct nfs_server *, const nfs4_stateid *, + const struct cred *); +static int nfs41_free_stateid(struct nfs_server *, nfs4_stateid *, + const struct cred *, bool); #endif #ifdef CONFIG_NFS_V4_SECURITY_LABEL @@ -114,6 +114,7 @@ static inline struct nfs4_label * nfs4_label_init_security(struct inode *dir, struct dentry *dentry, struct iattr *sattr, struct nfs4_label *label) { + struct lsm_context shim; int err; if (label == NULL) @@ -128,18 +129,26 @@ nfs4_label_init_security(struct inode *dir, struct dentry *dentry, label->label = NULL; err = security_dentry_init_security(dentry, sattr->ia_mode, - &dentry->d_name, NULL, - (void **)&label->label, &label->len); - if (err == 0) - return label; + &dentry->d_name, NULL, &shim); + if (err) + return NULL; - return NULL; + label->lsmid = shim.id; + label->label = shim.context; + label->len = shim.len; + return label; } static inline void nfs4_label_release_security(struct nfs4_label *label) { - if (label) - security_release_secctx(label->label, label->len); + struct lsm_context shim; + + if (label) { + shim.context = label->label; + shim.len = label->len; + shim.id = label->lsmid; + security_release_secctx(&shim); + } } static inline u32 *nfs4_bitmask(struct nfs_server *server, struct nfs4_label *label) { @@ -170,6 +179,7 @@ static int nfs4_map_errors(int err) case -NFS4ERR_RESOURCE: case -NFS4ERR_LAYOUTTRYLATER: case -NFS4ERR_RECALLCONFLICT: + case -NFS4ERR_RETURNCONFLICT: return -EREMOTEIO; case -NFS4ERR_WRONGSEC: case -NFS4ERR_WRONG_CRED: @@ -185,6 +195,9 @@ static int nfs4_map_errors(int err) return -EBUSY; case -NFS4ERR_NOT_SAME: return -ENOTSYNC; + case -ENETDOWN: + case -ENETUNREACH: + break; default: dprintk("%s could not handle NFSv4 error %d\n", __func__, -err); @@ -209,6 +222,7 @@ const u32 nfs4_fattr_bitmap[3] = { | FATTR4_WORD1_RAWDEV | FATTR4_WORD1_SPACE_USED | FATTR4_WORD1_TIME_ACCESS + | FATTR4_WORD1_TIME_CREATE | FATTR4_WORD1_TIME_METADATA | FATTR4_WORD1_TIME_MODIFY | FATTR4_WORD1_MOUNTED_ON_FILEID, @@ -230,6 +244,7 @@ static const u32 nfs4_pnfs_open_bitmap[3] = { | FATTR4_WORD1_RAWDEV | FATTR4_WORD1_SPACE_USED | FATTR4_WORD1_TIME_ACCESS + | FATTR4_WORD1_TIME_CREATE | FATTR4_WORD1_TIME_METADATA | FATTR4_WORD1_TIME_MODIFY, FATTR4_WORD2_MDSTHRESHOLD @@ -292,7 +307,7 @@ static void nfs4_bitmap_copy_adjust(__u32 *dst, const __u32 *src, unsigned long cache_validity; memcpy(dst, src, NFS4_BITMASK_SZ*sizeof(*dst)); - if (!inode || !nfs4_have_delegation(inode, FMODE_READ)) + if (!inode || !nfs_have_read_or_write_delegation(inode)) return; cache_validity = READ_ONCE(NFS_I(inode)->cache_validity) | flags; @@ -309,6 +324,21 @@ static void nfs4_bitmap_copy_adjust(__u32 *dst, const __u32 *src, dst[1] &= ~FATTR4_WORD1_MODE; if (!(cache_validity & NFS_INO_INVALID_OTHER)) dst[1] &= ~(FATTR4_WORD1_OWNER | FATTR4_WORD1_OWNER_GROUP); + + if (!(cache_validity & NFS_INO_INVALID_BTIME)) + dst[1] &= ~FATTR4_WORD1_TIME_CREATE; + + if (nfs_have_delegated_mtime(inode)) { + if (!(cache_validity & NFS_INO_INVALID_ATIME)) + dst[1] &= ~(FATTR4_WORD1_TIME_ACCESS|FATTR4_WORD1_TIME_ACCESS_SET); + if (!(cache_validity & NFS_INO_INVALID_MTIME)) + dst[1] &= ~(FATTR4_WORD1_TIME_MODIFY|FATTR4_WORD1_TIME_MODIFY_SET); + if (!(cache_validity & NFS_INO_INVALID_CTIME)) + dst[1] &= ~(FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY_SET); + } else if (nfs_have_delegated_atime(inode)) { + if (!(cache_validity & NFS_INO_INVALID_ATIME)) + dst[1] &= ~(FATTR4_WORD1_TIME_ACCESS|FATTR4_WORD1_TIME_ACCESS_SET); + } } static void nfs4_setup_readdir(u64 cookie, __be32 *verifier, struct dentry *dentry, @@ -361,7 +391,9 @@ static void nfs4_setup_readdir(u64 cookie, __be32 *verifier, struct dentry *dent *p++ = htonl(attrs); /* bitmap */ *p++ = htonl(12); /* attribute buffer length */ *p++ = htonl(NF4DIR); + spin_lock(&dentry->d_lock); p = xdr_encode_hyper(p, NFS_FILEID(d_inode(dentry->d_parent))); + spin_unlock(&dentry->d_lock); readdir->pgbase = (char *)p - (char *)start; readdir->count -= readdir->pgbase; @@ -421,6 +453,8 @@ static int nfs4_delay_killable(long *timeout) { might_sleep(); + if (unlikely(nfs_current_task_exiting())) + return -EINTR; __set_current_state(TASK_KILLABLE|TASK_FREEZABLE_UNSAFE); schedule_timeout(nfs4_update_delay(timeout)); if (!__fatal_signal_pending(current)) @@ -432,6 +466,8 @@ static int nfs4_delay_interruptible(long *timeout) { might_sleep(); + if (unlikely(nfs_current_task_exiting())) + return -EINTR; __set_current_state(TASK_INTERRUPTIBLE|TASK_FREEZABLE_UNSAFE); schedule_timeout(nfs4_update_delay(timeout)); if (!signal_pending(current)) @@ -558,6 +594,7 @@ static int nfs4_do_handle_exception(struct nfs_server *server, case -NFS4ERR_GRACE: case -NFS4ERR_LAYOUTTRYLATER: case -NFS4ERR_RECALLCONFLICT: + case -NFS4ERR_RETURNCONFLICT: exception->delay = 1; return 0; @@ -585,6 +622,21 @@ wait_on_recovery: return 0; } +/* + * Track the number of NFS4ERR_DELAY related retransmissions and return + * EAGAIN if the 'softerr' mount option is set, and we've exceeded the limit + * set by 'nfs_delay_retrans'. + */ +static int nfs4_exception_should_retrans(const struct nfs_server *server, + struct nfs4_exception *exception) +{ + if (server->flags & NFS_MOUNT_SOFTERR && nfs_delay_retrans >= 0) { + if (exception->retrans++ >= (unsigned short)nfs_delay_retrans) + return -EAGAIN; + } + return 0; +} + /* This is the error handling routine for processes that are allowed * to sleep. */ @@ -595,6 +647,11 @@ int nfs4_handle_exception(struct nfs_server *server, int errorcode, struct nfs4_ ret = nfs4_do_handle_exception(server, errorcode, exception); if (exception->delay) { + int ret2 = nfs4_exception_should_retrans(server, exception); + if (ret2 < 0) { + exception->retry = 0; + return ret2; + } ret = nfs4_delay(&exception->timeout, exception->interruptible); goto out_retry; @@ -621,8 +678,22 @@ nfs4_async_handle_exception(struct rpc_task *task, struct nfs_server *server, struct nfs_client *clp = server->nfs_client; int ret; + if ((task->tk_rpc_status == -ENETDOWN || + task->tk_rpc_status == -ENETUNREACH) && + task->tk_flags & RPC_TASK_NETUNREACH_FATAL) { + exception->delay = 0; + exception->recovering = 0; + exception->retry = 0; + return -EIO; + } + ret = nfs4_do_handle_exception(server, errorcode, exception); if (exception->delay) { + int ret2 = nfs4_exception_should_retrans(server, exception); + if (ret2 < 0) { + exception->retry = 0; + return ret2; + } rpc_delay(task, nfs4_update_delay(&exception->timeout)); goto out_retry; } @@ -921,6 +992,7 @@ out: out_noaction: return ret; session_recover: + set_bit(NFS4_SLOT_TBL_DRAINING, &session->fc_slot_table.slot_tbl_state); nfs4_schedule_session_recovery(session, status); dprintk("%s ERROR: %d Reset session\n", __func__, status); nfs41_sequence_free_slot(res); @@ -1217,7 +1289,8 @@ nfs4_update_changeattr_locked(struct inode *inode, struct nfs_inode *nfsi = NFS_I(inode); u64 change_attr = inode_peek_iversion_raw(inode); - cache_validity |= NFS_INO_INVALID_CTIME | NFS_INO_INVALID_MTIME; + if (!nfs_have_delegated_mtime(inode)) + cache_validity |= NFS_INO_INVALID_CTIME | NFS_INO_INVALID_MTIME; if (S_ISDIR(inode->i_mode)) cache_validity |= NFS_INO_INVALID_DATA; @@ -1236,12 +1309,13 @@ nfs4_update_changeattr_locked(struct inode *inode, if (S_ISDIR(inode->i_mode)) nfs_force_lookup_revalidate(inode); - if (!NFS_PROTO(inode)->have_delegation(inode, FMODE_READ)) + if (!nfs_have_delegated_attributes(inode)) cache_validity |= NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL | NFS_INO_INVALID_SIZE | NFS_INO_INVALID_OTHER | NFS_INO_INVALID_BLOCKS | NFS_INO_INVALID_NLINK | - NFS_INO_INVALID_MODE | NFS_INO_INVALID_XATTR; + NFS_INO_INVALID_MODE | NFS_INO_INVALID_BTIME | + NFS_INO_INVALID_XATTR; nfsi->attrtimeo = NFS_MINATTRTIMEO(inode); } nfsi->attrtimeo_timestamp = jiffies; @@ -1292,8 +1366,7 @@ static fmode_t _nfs4_ctx_to_openmode(const struct nfs_open_context *ctx) } static u32 -nfs4_map_atomic_open_share(struct nfs_server *server, - fmode_t fmode, int openflags) +nfs4_fmode_to_share_access(fmode_t fmode) { u32 res = 0; @@ -1307,11 +1380,27 @@ nfs4_map_atomic_open_share(struct nfs_server *server, case FMODE_READ|FMODE_WRITE: res = NFS4_SHARE_ACCESS_BOTH; } + return res; +} + +static u32 +nfs4_map_atomic_open_share(struct nfs_server *server, + fmode_t fmode, int openflags) +{ + u32 res = nfs4_fmode_to_share_access(fmode); + if (!(server->caps & NFS_CAP_ATOMIC_OPEN_V1)) goto out; /* Want no delegation if we're using O_DIRECT */ - if (openflags & O_DIRECT) + if (openflags & O_DIRECT) { res |= NFS4_SHARE_WANT_NO_DELEG; + goto out; + } + /* res |= NFS4_SHARE_WANT_NO_PREFERENCE; */ + if (server->caps & NFS_CAP_DELEGTIME) + res |= NFS4_SHARE_WANT_DELEG_TIMESTAMPS; + if (server->caps & NFS_CAP_OPEN_XOR) + res |= NFS4_SHARE_WANT_OPEN_XOR_DELEGATION; out: return res; } @@ -1709,7 +1798,8 @@ static void nfs_set_open_stateid_locked(struct nfs4_state *state, rcu_read_unlock(); trace_nfs4_open_stateid_update_wait(state->inode, stateid, 0); - if (!fatal_signal_pending(current)) { + if (!fatal_signal_pending(current) && + !nfs_current_task_exiting()) { if (schedule_timeout(5*HZ) == 0) status = -EAGAIN; else @@ -1926,44 +2016,41 @@ out_return_state: } static void -nfs4_opendata_check_deleg(struct nfs4_opendata *data, struct nfs4_state *state) -{ - struct nfs_client *clp = NFS_SERVER(state->inode)->nfs_client; - struct nfs_delegation *delegation; - int delegation_flags = 0; - - rcu_read_lock(); - delegation = rcu_dereference(NFS_I(state->inode)->delegation); - if (delegation) - delegation_flags = delegation->flags; - rcu_read_unlock(); - switch (data->o_arg.claim) { - default: +nfs4_process_delegation(struct inode *inode, const struct cred *cred, + enum open_claim_type4 claim, + const struct nfs4_open_delegation *delegation) +{ + switch (delegation->open_delegation_type) { + case NFS4_OPEN_DELEGATE_READ: + case NFS4_OPEN_DELEGATE_WRITE: + case NFS4_OPEN_DELEGATE_READ_ATTRS_DELEG: + case NFS4_OPEN_DELEGATE_WRITE_ATTRS_DELEG: break; + default: + return; + } + switch (claim) { 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); - return; + NFS_SERVER(inode)->nfs_client->cl_hostname); + break; + case NFS4_OPEN_CLAIM_PREVIOUS: + nfs_inode_reclaim_delegation(inode, cred, delegation->type, + &delegation->stateid, + delegation->pagemod_limit, + delegation->open_delegation_type); + break; + default: + nfs_inode_set_delegation(inode, cred, delegation->type, + &delegation->stateid, + delegation->pagemod_limit, + delegation->open_delegation_type); } - if ((delegation_flags & 1UL<<NFS_DELEGATION_NEED_RECLAIM) == 0) - nfs_inode_set_delegation(state->inode, - data->owner->so_cred, - data->o_res.delegation_type, - &data->o_res.delegation, - data->o_res.pagemod_limit); - else - nfs_inode_reclaim_delegation(state->inode, - data->owner->so_cred, - data->o_res.delegation_type, - &data->o_res.delegation, - data->o_res.pagemod_limit); - - if (data->o_res.do_recall) - nfs_async_inode_return_delegation(state->inode, - &data->o_res.delegation); + if (delegation->do_recall) + nfs_async_inode_return_delegation(inode, &delegation->stateid); } /* @@ -1980,19 +2067,23 @@ _nfs4_opendata_reclaim_to_nfs4_state(struct nfs4_opendata *data) if (!data->rpc_done) { if (data->rpc_status) return ERR_PTR(data->rpc_status); - /* cached opens have already been processed */ - goto update; + return nfs4_try_open_cached(data); } ret = nfs_refresh_inode(inode, &data->f_attr); if (ret) return ERR_PTR(ret); - if (data->o_res.delegation_type != 0) - nfs4_opendata_check_deleg(data, state); -update: - if (!update_open_stateid(state, &data->o_res.stateid, - NULL, data->o_arg.fmode)) + nfs4_process_delegation(state->inode, + data->owner->so_cred, + data->o_arg.claim, + &data->o_res.delegation); + + if (!(data->o_res.rflags & NFS4_OPEN_RESULT_NO_OPEN_STATEID)) { + if (!update_open_stateid(state, &data->o_res.stateid, + NULL, data->o_arg.fmode)) + return ERR_PTR(-EAGAIN); + } else if (!update_open_stateid(state, NULL, NULL, data->o_arg.fmode)) return ERR_PTR(-EAGAIN); refcount_inc(&state->count); @@ -2056,10 +2147,18 @@ _nfs4_opendata_to_nfs4_state(struct nfs4_opendata *data) if (IS_ERR(state)) goto out; - if (data->o_res.delegation_type != 0) - nfs4_opendata_check_deleg(data, state); - if (!update_open_stateid(state, &data->o_res.stateid, - NULL, data->o_arg.fmode)) { + nfs4_process_delegation(state->inode, + data->owner->so_cred, + data->o_arg.claim, + &data->o_res.delegation); + + if (!(data->o_res.rflags & NFS4_OPEN_RESULT_NO_OPEN_STATEID)) { + if (!update_open_stateid(state, &data->o_res.stateid, + NULL, data->o_arg.fmode)) { + nfs4_put_open_state(state); + state = ERR_PTR(-EAGAIN); + } + } else if (!update_open_stateid(state, NULL, NULL, data->o_arg.fmode)) { nfs4_put_open_state(state); state = ERR_PTR(-EAGAIN); } @@ -2195,7 +2294,7 @@ static int _nfs4_do_open_reclaim(struct nfs_open_context *ctx, struct nfs4_state { struct nfs_delegation *delegation; struct nfs4_opendata *opendata; - fmode_t delegation_type = 0; + u32 delegation_type = NFS4_OPEN_DELEGATE_NONE; int status; opendata = nfs4_open_recoverdata_alloc(ctx, state, @@ -2204,8 +2303,20 @@ static int _nfs4_do_open_reclaim(struct nfs_open_context *ctx, struct nfs4_state return PTR_ERR(opendata); rcu_read_lock(); delegation = rcu_dereference(NFS_I(state->inode)->delegation); - if (delegation != NULL && test_bit(NFS_DELEGATION_NEED_RECLAIM, &delegation->flags) != 0) - delegation_type = delegation->type; + if (delegation != NULL && test_bit(NFS_DELEGATION_NEED_RECLAIM, &delegation->flags) != 0) { + switch(delegation->type) { + case FMODE_READ: + delegation_type = NFS4_OPEN_DELEGATE_READ; + if (test_bit(NFS_DELEGATION_DELEGTIME, &delegation->flags)) + delegation_type = NFS4_OPEN_DELEGATE_READ_ATTRS_DELEG; + break; + case FMODE_WRITE: + case FMODE_READ|FMODE_WRITE: + delegation_type = NFS4_OPEN_DELEGATE_WRITE; + if (test_bit(NFS_DELEGATION_DELEGTIME, &delegation->flags)) + delegation_type = NFS4_OPEN_DELEGATE_WRITE_ATTRS_DELEG; + } + } rcu_read_unlock(); opendata->o_arg.u.delegation_type = delegation_type; status = nfs4_open_recover(opendata, state); @@ -2526,12 +2637,14 @@ static void nfs4_open_release(void *calldata) struct nfs4_opendata *data = calldata; struct nfs4_state *state = NULL; + /* In case of error, no cleanup! */ + if (data->rpc_status != 0 || !data->rpc_done) { + nfs_release_seqid(data->o_arg.seqid); + goto out_free; + } /* If this request hasn't been cancelled, do nothing */ if (!data->cancelled) goto out_free; - /* In case of error, no cleanup! */ - if (data->rpc_status != 0 || !data->rpc_done) - goto out_free; /* In case we need an open_confirm, no cleanup! */ if (data->o_res.rflags & NFS4_OPEN_RESULT_CONFIRM) goto out_free; @@ -2703,8 +2816,12 @@ static int _nfs4_proc_open(struct nfs4_opendata *data, return status; } if (!(o_res->f_attr->valid & NFS_ATTR_FATTR)) { + struct nfs_fh *fh = &o_res->fh; + nfs4_sequence_free_slot(&o_res->seq_res); - nfs4_proc_getattr(server, &o_res->fh, o_res->f_attr, NULL); + if (o_arg->claim == NFS4_OPEN_CLAIM_FH) + fh = NFS_FH(d_inode(data->dentry)); + nfs4_proc_getattr(server, fh, o_res->f_attr, NULL); } return 0; } @@ -2794,16 +2911,14 @@ static int nfs40_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *st } static int nfs40_test_and_free_expired_stateid(struct nfs_server *server, - nfs4_stateid *stateid, - const struct cred *cred) + nfs4_stateid *stateid, const struct cred *cred) { return -NFS4ERR_BAD_STATEID; } #if defined(CONFIG_NFS_V4_1) static int nfs41_test_and_free_expired_stateid(struct nfs_server *server, - nfs4_stateid *stateid, - const struct cred *cred) + nfs4_stateid *stateid, const struct cred *cred) { int status; @@ -2812,6 +2927,7 @@ static int nfs41_test_and_free_expired_stateid(struct nfs_server *server, break; case NFS4_INVALID_STATEID_TYPE: case NFS4_SPECIAL_STATEID_TYPE: + case NFS4_FREED_STATEID_TYPE: return -NFS4ERR_BAD_STATEID; case NFS4_REVOKED_STATEID_TYPE: goto out_free; @@ -3038,10 +3154,8 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata, fmode_t acc_mode = _nfs4_ctx_to_accessmode(ctx); struct inode *dir = d_inode(opendata->dir); unsigned long dir_verifier; - unsigned int seq; int ret; - seq = raw_seqcount_begin(&sp->so_reclaim_seqcount); dir_verifier = nfs_save_change_attribute(dir); ret = _nfs4_proc_open(opendata, ctx); @@ -3064,9 +3178,7 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata, if (d_really_is_negative(dentry)) { struct dentry *alias; d_drop(dentry); - alias = d_exact_alias(dentry, state->inode); - if (!alias) - alias = d_splice_alias(igrab(state->inode), dentry); + alias = d_splice_alias(igrab(state->inode), dentry); /* d_splice_alias() can't fail here - it's a non-directory */ if (alias) { dput(ctx->dentry); @@ -3082,7 +3194,7 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata, case NFS4_OPEN_CLAIM_DELEGATE_PREV: if (!opendata->rpc_done) break; - if (opendata->o_res.delegation_type != 0) + if (opendata->o_res.delegation.type != 0) dir_verifier = nfs_save_change_attribute(dir); nfs_set_verifier(dentry, dir_verifier); } @@ -3094,11 +3206,8 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata, if (ret != 0) goto out; - if (d_inode(dentry) == state->inode) { + if (d_inode(dentry) == state->inode) nfs_inode_attach_open_context(ctx); - if (read_seqcount_retry(&sp->so_reclaim_seqcount, seq)) - nfs4_schedule_stateid_recovery(server, state); - } out: if (!opendata->cancelled) { @@ -3368,13 +3477,18 @@ static int nfs4_do_setattr(struct inode *inode, const struct cred *cred, .inode = inode, .stateid = &arg.stateid, }; - unsigned long adjust_flags = NFS_INO_INVALID_CHANGE; + unsigned long adjust_flags = NFS_INO_INVALID_CHANGE | + NFS_INO_INVALID_CTIME; int err; if (sattr->ia_valid & (ATTR_MODE | ATTR_KILL_SUID | ATTR_KILL_SGID)) adjust_flags |= NFS_INO_INVALID_MODE; if (sattr->ia_valid & (ATTR_UID | ATTR_GID)) adjust_flags |= NFS_INO_INVALID_OTHER; + if (sattr->ia_valid & ATTR_ATIME) + adjust_flags |= NFS_INO_INVALID_ATIME; + if (sattr->ia_valid & ATTR_MTIME) + adjust_flags |= NFS_INO_INVALID_MTIME; do { nfs4_bitmap_copy_adjust(bitmask, nfs4_bitmask(server, fattr->label), @@ -3486,7 +3600,7 @@ static bool nfs4_refresh_open_old_stateid(nfs4_stateid *dst, write_sequnlock(&state->seqlock); trace_nfs4_close_stateid_update_wait(state->inode, dst, 0); - if (fatal_signal_pending(current)) + if (fatal_signal_pending(current) || nfs_current_task_exiting()) status = -EINTR; else if (schedule_timeout(5*HZ) != 0) @@ -3522,6 +3636,7 @@ struct nfs4_closedata { } lr; struct nfs_fattr fattr; unsigned long timestamp; + unsigned short retrans; }; static void nfs4_free_closedata(void *data) @@ -3550,6 +3665,7 @@ static void nfs4_close_done(struct rpc_task *task, void *data) .state = state, .inode = calldata->inode, .stateid = &calldata->arg.stateid, + .retrans = calldata->retrans, }; if (!nfs4_sequence_done(task, &calldata->res.seq_res)) @@ -3597,6 +3713,7 @@ static void nfs4_close_done(struct rpc_task *task, void *data) default: task->tk_status = nfs4_async_handle_exception(task, server, task->tk_status, &exception); + calldata->retrans = exception.retrans; if (exception.retry) goto out_restart; } @@ -3674,7 +3791,7 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data) if (calldata->arg.fmode == 0 || calldata->arg.fmode == FMODE_READ) { /* Close-to-open cache consistency revalidation */ - if (!nfs4_have_delegation(inode, FMODE_READ)) { + if (!nfs4_have_delegation(inode, FMODE_READ, 0)) { nfs4_bitmask_set(calldata->arg.bitmask_store, server->cache_consistency_bitmask, inode, 0); @@ -3684,8 +3801,7 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data) } calldata->arg.share_access = - nfs4_map_atomic_open_share(NFS_SERVER(inode), - calldata->arg.fmode, 0); + nfs4_fmode_to_share_access(calldata->arg.fmode); if (calldata->res.fattr == NULL) calldata->arg.bitmask = NULL; @@ -3816,8 +3932,11 @@ nfs4_atomic_open(struct inode *dir, struct nfs_open_context *ctx, static void nfs4_close_context(struct nfs_open_context *ctx, int is_sync) { + struct dentry *dentry = ctx->dentry; if (ctx->state == NULL) return; + if (dentry->d_flags & DCACHE_NFSFS_RENAMED) + nfs4_inode_set_return_delegation_on_close(d_inode(dentry)); if (is_sync) nfs4_close_sync(ctx->state, _nfs4_ctx_to_openmode(ctx)); else @@ -3826,11 +3945,26 @@ static void nfs4_close_context(struct nfs_open_context *ctx, int is_sync) #define FATTR4_WORD1_NFS40_MASK (2*FATTR4_WORD1_MOUNTED_ON_FILEID - 1UL) #define FATTR4_WORD2_NFS41_MASK (2*FATTR4_WORD2_SUPPATTR_EXCLCREAT - 1UL) -#define FATTR4_WORD2_NFS42_MASK (2*FATTR4_WORD2_XATTR_SUPPORT - 1UL) +#define FATTR4_WORD2_NFS42_MASK (2*FATTR4_WORD2_OPEN_ARGUMENTS - 1UL) + +#define FATTR4_WORD2_NFS42_TIME_DELEG_MASK \ + (FATTR4_WORD2_TIME_DELEG_MODIFY|FATTR4_WORD2_TIME_DELEG_ACCESS) +static bool nfs4_server_delegtime_capable(struct nfs4_server_caps_res *res) +{ + u32 share_access_want = res->open_caps.oa_share_access_want[0]; + u32 attr_bitmask = res->attr_bitmask[2]; + + return (share_access_want & NFS4_SHARE_WANT_DELEG_TIMESTAMPS) && + ((attr_bitmask & FATTR4_WORD2_NFS42_TIME_DELEG_MASK) == + FATTR4_WORD2_NFS42_TIME_DELEG_MASK); +} static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle) { - u32 bitmask[3] = {}, minorversion = server->nfs_client->cl_minorversion; + u32 minorversion = server->nfs_client->cl_minorversion; + u32 bitmask[3] = { + [0] = FATTR4_WORD0_SUPPORTED_ATTRS, + }; struct nfs4_server_caps_arg args = { .fhandle = fhandle, .bitmask = bitmask, @@ -3853,9 +3987,19 @@ static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *f FATTR4_WORD0_CASE_PRESERVING; if (minorversion) bitmask[2] = FATTR4_WORD2_SUPPATTR_EXCLCREAT; + if (minorversion > 1) + bitmask[2] |= FATTR4_WORD2_OPEN_ARGUMENTS; status = nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0); if (status == 0) { + bitmask[0] = (FATTR4_WORD0_SUPPORTED_ATTRS | + FATTR4_WORD0_FH_EXPIRE_TYPE | + FATTR4_WORD0_LINK_SUPPORT | + FATTR4_WORD0_SYMLINK_SUPPORT | + FATTR4_WORD0_ACLSUPPORT | + FATTR4_WORD0_CASE_INSENSITIVE | + FATTR4_WORD0_CASE_PRESERVING) & + res.attr_bitmask[0]; /* Sanity check the server answers */ switch (minorversion) { case 0: @@ -3864,13 +4008,20 @@ static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *f break; case 1: res.attr_bitmask[2] &= FATTR4_WORD2_NFS41_MASK; + bitmask[2] = FATTR4_WORD2_SUPPATTR_EXCLCREAT & + res.attr_bitmask[2]; break; case 2: res.attr_bitmask[2] &= FATTR4_WORD2_NFS42_MASK; + bitmask[2] = (FATTR4_WORD2_SUPPATTR_EXCLCREAT | + FATTR4_WORD2_OPEN_ARGUMENTS) & + res.attr_bitmask[2]; } memcpy(server->attr_bitmask, res.attr_bitmask, sizeof(server->attr_bitmask)); - server->caps &= ~(NFS_CAP_ACLS | NFS_CAP_HARDLINKS | - NFS_CAP_SYMLINKS| NFS_CAP_SECURITY_LABEL); + server->caps &= + ~(NFS_CAP_ACLS | NFS_CAP_HARDLINKS | NFS_CAP_SYMLINKS | + NFS_CAP_SECURITY_LABEL | NFS_CAP_FS_LOCATIONS | + NFS_CAP_OPEN_XOR | NFS_CAP_DELEGTIME); server->fattr_valid = NFS_ATTR_FATTR_V4; if (res.attr_bitmask[0] & FATTR4_WORD0_ACL && res.acl_bitmask & ACL4_SUPPORT_ALLOW_ACL) @@ -3909,10 +4060,20 @@ static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *f server->fattr_valid &= ~NFS_ATTR_FATTR_CTIME; if (!(res.attr_bitmask[1] & FATTR4_WORD1_TIME_MODIFY)) server->fattr_valid &= ~NFS_ATTR_FATTR_MTIME; + if (!(res.attr_bitmask[1] & FATTR4_WORD1_TIME_MODIFY)) + server->fattr_valid &= ~NFS_ATTR_FATTR_MTIME; + if (!(res.attr_bitmask[1] & FATTR4_WORD1_TIME_CREATE)) + server->fattr_valid &= ~NFS_ATTR_FATTR_BTIME; memcpy(server->attr_bitmask_nl, res.attr_bitmask, sizeof(server->attr_bitmask)); server->attr_bitmask_nl[2] &= ~FATTR4_WORD2_SECURITY_LABEL; + if (res.open_caps.oa_share_access_want[0] & + NFS4_SHARE_WANT_OPEN_XOR_DELEGATION) + server->caps |= NFS_CAP_OPEN_XOR; + if (nfs4_server_delegtime_capable(&res)) + server->caps |= NFS_CAP_DELEGTIME; + memcpy(server->cache_consistency_bitmask, res.attr_bitmask, sizeof(server->cache_consistency_bitmask)); server->cache_consistency_bitmask[0] &= FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE; server->cache_consistency_bitmask[1] &= FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY; @@ -3938,7 +4099,6 @@ int nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle) }; int err; - nfs4_server_set_init_caps(server); do { err = nfs4_handle_exception(server, _nfs4_server_capabilities(server, fhandle), @@ -3997,6 +4157,23 @@ static void test_fs_location_for_trunking(struct nfs4_fs_location *location, } } +static bool _is_same_nfs4_pathname(struct nfs4_pathname *path1, + struct nfs4_pathname *path2) +{ + int i; + + if (path1->ncomponents != path2->ncomponents) + return false; + for (i = 0; i < path1->ncomponents; i++) { + if (path1->components[i].len != path2->components[i].len) + return false; + if (memcmp(path1->components[i].data, path2->components[i].data, + path1->components[i].len)) + return false; + } + return true; +} + static int _nfs4_discover_trunking(struct nfs_server *server, struct nfs_fh *fhandle) { @@ -4030,9 +4207,13 @@ static int _nfs4_discover_trunking(struct nfs_server *server, if (status) goto out_free_3; - for (i = 0; i < locations->nlocations; i++) + for (i = 0; i < locations->nlocations; i++) { + if (!_is_same_nfs4_pathname(&locations->fs_path, + &locations->locations[i].rootpath)) + continue; test_fs_location_for_trunking(&locations->locations[i], clp, server); + } out_free_3: kfree(locations->fattr); out_free_2: @@ -4065,15 +4246,18 @@ out: } static int _nfs4_lookup_root(struct nfs_server *server, struct nfs_fh *fhandle, - struct nfs_fsinfo *info) + struct nfs_fattr *fattr) { - u32 bitmask[3]; + u32 bitmask[3] = { + [0] = FATTR4_WORD0_TYPE | FATTR4_WORD0_CHANGE | + FATTR4_WORD0_SIZE | FATTR4_WORD0_FSID, + }; struct nfs4_lookup_root_arg args = { .bitmask = bitmask, }; struct nfs4_lookup_res res = { .server = server, - .fattr = info->fattr, + .fattr = fattr, .fh = fhandle, }; struct rpc_message msg = { @@ -4082,27 +4266,20 @@ static int _nfs4_lookup_root(struct nfs_server *server, struct nfs_fh *fhandle, .rpc_resp = &res, }; - bitmask[0] = nfs4_fattr_bitmap[0]; - bitmask[1] = nfs4_fattr_bitmap[1]; - /* - * Process the label in the upcoming getfattr - */ - bitmask[2] = nfs4_fattr_bitmap[2] & ~FATTR4_WORD2_SECURITY_LABEL; - - nfs_fattr_init(info->fattr); + nfs_fattr_init(fattr); return nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0); } static int nfs4_lookup_root(struct nfs_server *server, struct nfs_fh *fhandle, - struct nfs_fsinfo *info) + struct nfs_fattr *fattr) { struct nfs4_exception exception = { .interruptible = true, }; int err; do { - err = _nfs4_lookup_root(server, fhandle, info); - trace_nfs4_lookup_root(server, fhandle, info->fattr, err); + err = _nfs4_lookup_root(server, fhandle, fattr); + trace_nfs4_lookup_root(server, fhandle, fattr, err); switch (err) { case 0: case -NFS4ERR_WRONGSEC: @@ -4115,8 +4292,9 @@ out: return err; } -static int nfs4_lookup_root_sec(struct nfs_server *server, struct nfs_fh *fhandle, - struct nfs_fsinfo *info, rpc_authflavor_t flavor) +static int nfs4_lookup_root_sec(struct nfs_server *server, + struct nfs_fh *fhandle, struct nfs_fattr *fattr, + rpc_authflavor_t flavor) { struct rpc_auth_create_args auth_args = { .pseudoflavor = flavor, @@ -4126,7 +4304,7 @@ static int nfs4_lookup_root_sec(struct nfs_server *server, struct nfs_fh *fhandl auth = rpcauth_create(&auth_args, server->client); if (IS_ERR(auth)) return -EACCES; - return nfs4_lookup_root(server, fhandle, info); + return nfs4_lookup_root(server, fhandle, fattr); } /* @@ -4139,7 +4317,7 @@ static int nfs4_lookup_root_sec(struct nfs_server *server, struct nfs_fh *fhandl * negative errno value. */ static int nfs4_find_root_sec(struct nfs_server *server, struct nfs_fh *fhandle, - struct nfs_fsinfo *info) + struct nfs_fattr *fattr) { /* Per 3530bis 15.33.5 */ static const rpc_authflavor_t flav_array[] = { @@ -4155,8 +4333,9 @@ static int nfs4_find_root_sec(struct nfs_server *server, struct nfs_fh *fhandle, if (server->auth_info.flavor_len > 0) { /* try each flavor specified by user */ for (i = 0; i < server->auth_info.flavor_len; i++) { - status = nfs4_lookup_root_sec(server, fhandle, info, - server->auth_info.flavors[i]); + status = nfs4_lookup_root_sec( + server, fhandle, fattr, + server->auth_info.flavors[i]); if (status == -NFS4ERR_WRONGSEC || status == -EACCES) continue; break; @@ -4164,7 +4343,7 @@ static int nfs4_find_root_sec(struct nfs_server *server, struct nfs_fh *fhandle, } else { /* no flavors specified by user, try default list */ for (i = 0; i < ARRAY_SIZE(flav_array); i++) { - status = nfs4_lookup_root_sec(server, fhandle, info, + status = nfs4_lookup_root_sec(server, fhandle, fattr, flav_array[i]); if (status == -NFS4ERR_WRONGSEC || status == -EACCES) continue; @@ -4188,28 +4367,22 @@ static int nfs4_find_root_sec(struct nfs_server *server, struct nfs_fh *fhandle, * nfs4_proc_get_rootfh - get file handle for server's pseudoroot * @server: initialized nfs_server handle * @fhandle: we fill in the pseudo-fs root file handle - * @info: we fill in an FSINFO struct + * @fattr: we fill in a bare bones struct fattr * @auth_probe: probe the auth flavours * * Returns zero on success, or a negative errno. */ int nfs4_proc_get_rootfh(struct nfs_server *server, struct nfs_fh *fhandle, - struct nfs_fsinfo *info, - bool auth_probe) + struct nfs_fattr *fattr, bool auth_probe) { int status = 0; if (!auth_probe) - status = nfs4_lookup_root(server, fhandle, info); + status = nfs4_lookup_root(server, fhandle, fattr); if (auth_probe || status == NFS4ERR_WRONGSEC) - status = server->nfs_client->cl_mvops->find_root_sec(server, - fhandle, info); - - if (status == 0) - status = nfs4_server_capabilities(server, fhandle); - if (status == 0) - status = nfs4_do_fsinfo(server, fhandle, info); + status = server->nfs_client->cl_mvops->find_root_sec( + server, fhandle, fattr); return nfs4_map_errors(status); } @@ -4398,15 +4571,15 @@ nfs4_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr, } static int _nfs4_proc_lookup(struct rpc_clnt *clnt, struct inode *dir, - struct dentry *dentry, struct nfs_fh *fhandle, - struct nfs_fattr *fattr) + struct dentry *dentry, const struct qstr *name, + struct nfs_fh *fhandle, struct nfs_fattr *fattr) { struct nfs_server *server = NFS_SERVER(dir); int status; struct nfs4_lookup_arg args = { .bitmask = server->attr_bitmask, .dir_fh = NFS_FH(dir), - .name = &dentry->d_name, + .name = name, }; struct nfs4_lookup_res res = { .server = server, @@ -4448,17 +4621,16 @@ static void nfs_fixup_secinfo_attributes(struct nfs_fattr *fattr) } static int nfs4_proc_lookup_common(struct rpc_clnt **clnt, struct inode *dir, - struct dentry *dentry, struct nfs_fh *fhandle, - struct nfs_fattr *fattr) + struct dentry *dentry, const struct qstr *name, + struct nfs_fh *fhandle, struct nfs_fattr *fattr) { struct nfs4_exception exception = { .interruptible = true, }; struct rpc_clnt *client = *clnt; - const struct qstr *name = &dentry->d_name; int err; do { - err = _nfs4_proc_lookup(client, dir, dentry, fhandle, fattr); + err = _nfs4_proc_lookup(client, dir, dentry, name, fhandle, fattr); trace_nfs4_lookup(dir, name, err); switch (err) { case -NFS4ERR_BADNAME: @@ -4493,13 +4665,13 @@ out: return err; } -static int nfs4_proc_lookup(struct inode *dir, struct dentry *dentry, +static int nfs4_proc_lookup(struct inode *dir, struct dentry *dentry, const struct qstr *name, struct nfs_fh *fhandle, struct nfs_fattr *fattr) { int status; struct rpc_clnt *client = NFS_CLIENT(dir); - status = nfs4_proc_lookup_common(&client, dir, dentry, fhandle, fattr); + status = nfs4_proc_lookup_common(&client, dir, dentry, name, fhandle, fattr); if (client != NFS_CLIENT(dir)) { rpc_shutdown_client(client); nfs_fixup_secinfo_attributes(fattr); @@ -4514,7 +4686,8 @@ nfs4_proc_lookup_mountpoint(struct inode *dir, struct dentry *dentry, struct rpc_clnt *client = NFS_CLIENT(dir); int status; - status = nfs4_proc_lookup_common(&client, dir, dentry, fhandle, fattr); + status = nfs4_proc_lookup_common(&client, dir, dentry, &dentry->d_name, + fhandle, fattr); if (status < 0) return ERR_PTR(status); return (client == NFS_CLIENT(dir)) ? rpc_clone_client(client) : client; @@ -4542,16 +4715,19 @@ static int _nfs4_proc_lookupp(struct inode *inode, }; unsigned short task_flags = 0; - if (NFS_SERVER(inode)->flags & NFS_MOUNT_SOFTREVAL) + if (server->flags & NFS_MOUNT_SOFTREVAL) task_flags |= RPC_TASK_TIMEOUT; + if (server->caps & NFS_CAP_MOVEABLE) + task_flags |= RPC_TASK_MOVEABLE; args.bitmask = nfs4_bitmask(server, fattr->label); nfs_fattr_init(fattr); + nfs4_init_sequence(&args.seq_args, &res.seq_res, 0, 0); dprintk("NFS call lookupp ino=0x%lx\n", inode->i_ino); - status = nfs4_call_sync(clnt, server, &msg, &args.seq_args, - &res.seq_res, task_flags); + status = nfs4_do_call_sync(clnt, server, &msg, &args.seq_args, + &res.seq_res, task_flags); dprintk("NFS reply lookupp: %d\n", status); return status; } @@ -4591,7 +4767,7 @@ static int _nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry }; int status = 0; - if (!nfs4_have_delegation(inode, FMODE_READ)) { + if (!nfs4_have_delegation(inode, FMODE_READ, 0)) { res.fattr = nfs_alloc_fattr(); if (res.fattr == NULL) return -ENOMEM; @@ -4909,8 +5085,9 @@ static int _nfs4_proc_link(struct inode *inode, struct inode *dir, const struct goto out; nfs4_inode_make_writeable(inode); - nfs4_bitmap_copy_adjust(bitmask, nfs4_bitmask(server, res.fattr->label), inode, - NFS_INO_INVALID_CHANGE); + nfs4_bitmap_copy_adjust(bitmask, nfs4_bitmask(server, res.fattr->label), + inode, + NFS_INO_INVALID_CHANGE | NFS_INO_INVALID_CTIME); status = nfs4_call_sync(server->client, server, &msg, &arg.seq_args, &res.seq_res, 1); if (!status) { nfs4_update_changeattr(dir, &res.cinfo, res.fattr->time_start, @@ -4988,9 +5165,6 @@ static int nfs4_do_create(struct inode *dir, struct dentry *dentry, struct nfs4_ &data->arg.seq_args, &data->res.seq_res, 1); if (status == 0) { spin_lock(&dir->i_lock); - /* Creating a directory bumps nlink in the parent */ - if (data->arg.ftype == NF4DIR) - nfs4_inc_nlink_locked(dir); nfs4_update_changeattr_locked(dir, &data->res.dir_cinfo, data->res.fattr->time_start, NFS_INO_INVALID_DATA); @@ -5000,6 +5174,31 @@ static int nfs4_do_create(struct inode *dir, struct dentry *dentry, struct nfs4_ return status; } +static struct dentry *nfs4_do_mkdir(struct inode *dir, struct dentry *dentry, + struct nfs4_createdata *data, int *statusp) +{ + struct dentry *ret; + + *statusp = nfs4_call_sync(NFS_SERVER(dir)->client, NFS_SERVER(dir), &data->msg, + &data->arg.seq_args, &data->res.seq_res, 1); + + if (*statusp) + return NULL; + + spin_lock(&dir->i_lock); + /* Creating a directory bumps nlink in the parent */ + nfs4_inc_nlink_locked(dir); + nfs4_update_changeattr_locked(dir, &data->res.dir_cinfo, + data->res.fattr->time_start, + NFS_INO_INVALID_DATA); + spin_unlock(&dir->i_lock); + ret = nfs_add_or_obtain(dentry, data->res.fh, data->res.fattr); + if (!IS_ERR(ret)) + return ret; + *statusp = PTR_ERR(ret); + return NULL; +} + static void nfs4_free_createdata(struct nfs4_createdata *data) { nfs4_label_free(data->fattr.label); @@ -5007,9 +5206,10 @@ static void nfs4_free_createdata(struct nfs4_createdata *data) } static int _nfs4_proc_symlink(struct inode *dir, struct dentry *dentry, - struct page *page, unsigned int len, struct iattr *sattr, + struct folio *folio, unsigned int len, struct iattr *sattr, struct nfs4_label *label) { + struct page *page = &folio->page; struct nfs4_createdata *data; int status = -ENAMETOOLONG; @@ -5034,7 +5234,7 @@ out: } static int nfs4_proc_symlink(struct inode *dir, struct dentry *dentry, - struct page *page, unsigned int len, struct iattr *sattr) + struct folio *folio, unsigned int len, struct iattr *sattr) { struct nfs4_exception exception = { .interruptible = true, @@ -5045,7 +5245,7 @@ static int nfs4_proc_symlink(struct inode *dir, struct dentry *dentry, label = nfs4_label_init_security(dir, dentry, sattr, &l); do { - err = _nfs4_proc_symlink(dir, dentry, page, len, sattr, label); + err = _nfs4_proc_symlink(dir, dentry, folio, len, sattr, label); trace_nfs4_symlink(dir, &dentry->d_name, err); err = nfs4_handle_exception(NFS_SERVER(dir), err, &exception); @@ -5055,32 +5255,35 @@ static int nfs4_proc_symlink(struct inode *dir, struct dentry *dentry, return err; } -static int _nfs4_proc_mkdir(struct inode *dir, struct dentry *dentry, - struct iattr *sattr, struct nfs4_label *label) +static struct dentry *_nfs4_proc_mkdir(struct inode *dir, struct dentry *dentry, + struct iattr *sattr, + struct nfs4_label *label, int *statusp) { struct nfs4_createdata *data; - int status = -ENOMEM; + struct dentry *ret = NULL; + *statusp = -ENOMEM; data = nfs4_alloc_createdata(dir, &dentry->d_name, sattr, NF4DIR); if (data == NULL) goto out; data->arg.label = label; - status = nfs4_do_create(dir, dentry, data); + ret = nfs4_do_mkdir(dir, dentry, data, statusp); nfs4_free_createdata(data); out: - return status; + return ret; } -static int nfs4_proc_mkdir(struct inode *dir, struct dentry *dentry, - struct iattr *sattr) +static struct dentry *nfs4_proc_mkdir(struct inode *dir, struct dentry *dentry, + struct iattr *sattr) { struct nfs_server *server = NFS_SERVER(dir); struct nfs4_exception exception = { .interruptible = true, }; struct nfs4_label l, *label; + struct dentry *alias; int err; label = nfs4_label_init_security(dir, dentry, sattr, &l); @@ -5088,14 +5291,16 @@ static int nfs4_proc_mkdir(struct inode *dir, struct dentry *dentry, if (!(server->attr_bitmask[2] & FATTR4_WORD2_MODE_UMASK)) sattr->ia_mode &= ~current_umask(); do { - err = _nfs4_proc_mkdir(dir, dentry, sattr, label); + alias = _nfs4_proc_mkdir(dir, dentry, sattr, label, &err); trace_nfs4_mkdir(dir, &dentry->d_name, err); - err = nfs4_handle_exception(NFS_SERVER(dir), err, - &exception); + if (err) + alias = ERR_PTR(nfs4_handle_exception(NFS_SERVER(dir), + err, + &exception)); } while (exception.retry); nfs4_label_release_security(label); - return err; + return alias; } static int _nfs4_proc_readdir(struct nfs_readdir_arg *nr_arg, @@ -5394,9 +5599,11 @@ static int nfs4_read_done_cb(struct rpc_task *task, struct nfs_pgio_header *hdr) .inode = hdr->inode, .state = hdr->args.context->state, .stateid = &hdr->args.stateid, + .retrans = hdr->retrans, }; task->tk_status = nfs4_async_handle_exception(task, server, task->tk_status, &exception); + hdr->retrans = exception.retrans; if (exception.retry) { rpc_restart_call_prepare(task); return -EAGAIN; @@ -5429,7 +5636,7 @@ static bool nfs4_read_plus_not_supported(struct rpc_task *task, struct rpc_message *msg = &task->tk_msg; if (msg->rpc_proc == &nfs4_procedures[NFSPROC4_CLNT_READ_PLUS] && - server->caps & NFS_CAP_READ_PLUS && task->tk_status == -ENOTSUPP) { + task->tk_status == -ENOTSUPP) { server->caps &= ~NFS_CAP_READ_PLUS; msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_READ]; rpc_restart_call_prepare(task); @@ -5453,17 +5660,21 @@ static int nfs4_read_done(struct rpc_task *task, struct nfs_pgio_header *hdr) } #if defined CONFIG_NFS_V4_2 && defined CONFIG_NFS_V4_2_READ_PLUS -static void nfs42_read_plus_support(struct nfs_pgio_header *hdr, +static bool nfs42_read_plus_support(struct nfs_pgio_header *hdr, struct rpc_message *msg) { /* Note: We don't use READ_PLUS with pNFS yet */ - if (nfs_server_capable(hdr->inode, NFS_CAP_READ_PLUS) && !hdr->ds_clp) + if (nfs_server_capable(hdr->inode, NFS_CAP_READ_PLUS) && !hdr->ds_clp) { msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_READ_PLUS]; + return nfs_read_alloc_scratch(hdr, READ_PLUS_SCRATCH_SIZE); + } + return false; } #else -static void nfs42_read_plus_support(struct nfs_pgio_header *hdr, +static bool nfs42_read_plus_support(struct nfs_pgio_header *hdr, struct rpc_message *msg) { + return false; } #endif /* CONFIG_NFS_V4_2 */ @@ -5473,8 +5684,8 @@ static void nfs4_proc_read_setup(struct nfs_pgio_header *hdr, hdr->timestamp = jiffies; if (!hdr->pgio_done_cb) hdr->pgio_done_cb = nfs4_read_done_cb; - msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_READ]; - nfs42_read_plus_support(hdr, msg); + if (!nfs42_read_plus_support(hdr, msg)) + msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_READ]; nfs4_init_sequence(&hdr->args.seq_args, &hdr->res.seq_res, 0, 0); } @@ -5506,10 +5717,12 @@ static int nfs4_write_done_cb(struct rpc_task *task, .inode = hdr->inode, .state = hdr->args.context->state, .stateid = &hdr->args.stateid, + .retrans = hdr->retrans, }; task->tk_status = nfs4_async_handle_exception(task, NFS_SERVER(inode), task->tk_status, &exception); + hdr->retrans = exception.retrans; if (exception.retry) { rpc_restart_call_prepare(task); return -EAGAIN; @@ -5555,7 +5768,7 @@ bool nfs4_write_need_cache_consistency_data(struct nfs_pgio_header *hdr) /* Otherwise, request attributes if and only if we don't hold * a delegation */ - return nfs4_have_delegation(hdr->inode, FMODE_READ) == 0; + return nfs4_have_delegation(hdr->inode, FMODE_READ, 0) == 0; } void nfs4_bitmask_set(__u32 bitmask[], const __u32 src[], @@ -5583,6 +5796,8 @@ void nfs4_bitmask_set(__u32 bitmask[], const __u32 src[], bitmask[1] |= FATTR4_WORD1_TIME_MODIFY; if (cache_validity & NFS_INO_INVALID_BLOCKS) bitmask[1] |= FATTR4_WORD1_SPACE_USED; + if (cache_validity & NFS_INO_INVALID_BTIME) + bitmask[1] |= FATTR4_WORD1_TIME_CREATE; if (cache_validity & NFS_INO_INVALID_SIZE) bitmask[0] |= FATTR4_WORD0_SIZE; @@ -5614,7 +5829,7 @@ static void nfs4_proc_write_setup(struct nfs_pgio_header *hdr, msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_WRITE]; nfs4_init_sequence(&hdr->args.seq_args, &hdr->res.seq_res, 0, 0); - nfs4_state_protect_write(server->nfs_client, clnt, msg, hdr); + nfs4_state_protect_write(hdr->ds_clp ? hdr->ds_clp : server->nfs_client, clnt, msg, hdr); } static void nfs4_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data) @@ -5655,7 +5870,8 @@ static void nfs4_proc_commit_setup(struct nfs_commit_data *data, struct rpc_mess data->res.server = server; msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_COMMIT]; nfs4_init_sequence(&data->args.seq_args, &data->res.seq_res, 1, 0); - nfs4_state_protect(server->nfs_client, NFS_SP4_MACH_CRED_COMMIT, clnt, msg); + nfs4_state_protect(data->ds_clp ? data->ds_clp : server->nfs_client, + NFS_SP4_MACH_CRED_COMMIT, clnt, msg); } static int _nfs4_proc_commit(struct file *dst, struct nfs_commitargs *args, @@ -5956,7 +6172,7 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, } /* for decoding across pages */ - res.acl_scratch = alloc_page(GFP_KERNEL); + res.acl_scratch = folio_alloc(GFP_KERNEL, 0); if (!res.acl_scratch) goto out_free; @@ -5989,11 +6205,10 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, out_ok: ret = res.acl_len; out_free: - for (i = 0; i < npages; i++) - if (pages[i]) - __free_page(pages[i]); + while (--i >= 0) + __free_page(pages[i]); if (res.acl_scratch) - __free_page(res.acl_scratch); + folio_put(res.acl_scratch); kfree(pages); return ret; } @@ -6021,6 +6236,8 @@ static ssize_t nfs4_proc_get_acl(struct inode *inode, void *buf, size_t buflen, struct nfs_server *server = NFS_SERVER(inode); int ret; + if (unlikely(NFS_FH(inode)->size == 0)) + return -ENODATA; if (!nfs4_server_supports_acls(server, type)) return -EOPNOTSUPP; ret = nfs_revalidate_inode(inode, NFS_INO_INVALID_CHANGE); @@ -6095,6 +6312,9 @@ static int nfs4_proc_set_acl(struct inode *inode, const void *buf, { struct nfs4_exception exception = { }; int err; + + if (unlikely(NFS_FH(inode)->size == 0)) + return -ENODATA; do { err = __nfs4_proc_set_acl(inode, buf, buflen, type); trace_nfs4_set_acl(inode, err); @@ -6117,7 +6337,7 @@ static int _nfs4_get_security_label(struct inode *inode, void *buf, size_t buflen) { struct nfs_server *server = NFS_SERVER(inode); - struct nfs4_label label = {0, 0, buflen, buf}; + struct nfs4_label label = {0, 0, 0, buflen, buf}; u32 bitmask[3] = { 0, 0, FATTR4_WORD2_SECURITY_LABEL }; struct nfs_fattr fattr = { @@ -6222,7 +6442,7 @@ static int nfs4_do_set_security_label(struct inode *inode, static int nfs4_set_security_label(struct inode *inode, const void *buf, size_t buflen) { - struct nfs4_label ilabel = {0, 0, buflen, (char *)buf }; + struct nfs4_label ilabel = {0, 0, 0, buflen, (char *)buf }; struct nfs_fattr *fattr; int status; @@ -6237,6 +6457,7 @@ nfs4_set_security_label(struct inode *inode, const void *buf, size_t buflen) if (status == 0) nfs_setsecurity(inode, fattr); + nfs_free_fattr(fattr); return status; } #endif /* CONFIG_NFS_V4_SECURITY_LABEL */ @@ -6515,6 +6736,7 @@ struct nfs4_delegreturndata { struct nfs_fh fh; nfs4_stateid stateid; unsigned long timestamp; + unsigned short retrans; struct { struct nfs4_layoutreturn_args arg; struct nfs4_layoutreturn_res res; @@ -6522,6 +6744,7 @@ struct nfs4_delegreturndata { u32 roc_barrier; bool roc; } lr; + struct nfs4_delegattr sattr; struct nfs_fattr fattr; int rpc_status; struct inode *inode; @@ -6534,6 +6757,7 @@ static void nfs4_delegreturn_done(struct rpc_task *task, void *calldata) .inode = data->inode, .stateid = &data->stateid, .task_is_privileged = data->args.seq_args.sa_privileged, + .retrans = data->retrans, }; if (!nfs4_sequence_done(task, &data->res.seq_res)) @@ -6546,6 +6770,30 @@ static void nfs4_delegreturn_done(struct rpc_task *task, void *calldata) &data->res.lr_ret) == -EAGAIN) goto out_restart; + if (data->args.sattr_args && task->tk_status != 0) { + switch(data->res.sattr_ret) { + case 0: + data->args.sattr_args = NULL; + data->res.sattr_res = false; + break; + case -NFS4ERR_ADMIN_REVOKED: + case -NFS4ERR_DELEG_REVOKED: + case -NFS4ERR_EXPIRED: + case -NFS4ERR_BAD_STATEID: + /* Let the main handler below do stateid recovery */ + break; + case -NFS4ERR_OLD_STATEID: + if (nfs4_refresh_delegation_stateid(&data->stateid, + data->inode)) + goto out_restart; + fallthrough; + default: + data->args.sattr_args = NULL; + data->res.sattr_res = false; + goto out_restart; + } + } + switch (task->tk_status) { case 0: renew_lease(data->res.server, data->timestamp); @@ -6581,6 +6829,7 @@ static void nfs4_delegreturn_done(struct rpc_task *task, void *calldata) task->tk_status = nfs4_async_handle_exception(task, data->res.server, task->tk_status, &exception); + data->retrans = exception.retrans; if (exception.retry) goto out_restart; } @@ -6639,7 +6888,10 @@ static const struct rpc_call_ops nfs4_delegreturn_ops = { .rpc_release = nfs4_delegreturn_release, }; -static int _nfs4_proc_delegreturn(struct inode *inode, const struct cred *cred, const nfs4_stateid *stateid, int issync) +static int _nfs4_proc_delegreturn(struct inode *inode, const struct cred *cred, + const nfs4_stateid *stateid, + struct nfs_delegation *delegation, + int issync) { struct nfs4_delegreturndata *data; struct nfs_server *server = NFS_SERVER(inode); @@ -6691,12 +6943,27 @@ static int _nfs4_proc_delegreturn(struct inode *inode, const struct cred *cred, } } + if (delegation && + test_bit(NFS_DELEGATION_DELEGTIME, &delegation->flags)) { + if (delegation->type & FMODE_READ) { + data->sattr.atime = inode_get_atime(inode); + data->sattr.atime_set = true; + } + if (delegation->type & FMODE_WRITE) { + data->sattr.mtime = inode_get_mtime(inode); + data->sattr.mtime_set = true; + } + data->args.sattr_args = &data->sattr; + data->res.sattr_res = true; + } + if (!data->inode) nfs4_init_sequence(&data->args.seq_args, &data->res.seq_res, 1, 1); else nfs4_init_sequence(&data->args.seq_args, &data->res.seq_res, 1, 0); + task_setup_data.callback_data = data; msg.rpc_argp = &data->args; msg.rpc_resp = &data->res; @@ -6714,13 +6981,16 @@ out: return status; } -int nfs4_proc_delegreturn(struct inode *inode, const struct cred *cred, const nfs4_stateid *stateid, int issync) +int nfs4_proc_delegreturn(struct inode *inode, const struct cred *cred, + const nfs4_stateid *stateid, + struct nfs_delegation *delegation, int issync) { struct nfs_server *server = NFS_SERVER(inode); struct nfs4_exception exception = { }; int err; do { - err = _nfs4_proc_delegreturn(inode, cred, stateid, issync); + err = _nfs4_proc_delegreturn(inode, cred, stateid, + delegation, issync); trace_nfs4_delegreturn(inode, stateid, err); switch (err) { case -NFS4ERR_STALE_STATEID: @@ -6764,7 +7034,7 @@ static int _nfs4_proc_getlk(struct nfs4_state *state, int cmd, struct file_lock status = nfs4_call_sync(server->client, server, &msg, &arg.seq_args, &res.seq_res, 1); switch (status) { case 0: - request->fl_type = F_UNLCK; + request->c.flc_type = F_UNLCK; break; case -NFS4ERR_DENIED: status = 0; @@ -6836,6 +7106,7 @@ struct nfs4_unlockdata { struct file_lock fl; struct nfs_server *server; unsigned long timestamp; + unsigned short retrans; }; static struct nfs4_unlockdata *nfs4_alloc_unlockdata(struct file_lock *fl, @@ -6846,10 +7117,18 @@ static struct nfs4_unlockdata *nfs4_alloc_unlockdata(struct file_lock *fl, struct nfs4_unlockdata *p; struct nfs4_state *state = lsp->ls_state; struct inode *inode = state->inode; + struct nfs_lock_context *l_ctx; p = kzalloc(sizeof(*p), GFP_KERNEL); if (p == NULL) return NULL; + l_ctx = nfs_get_lock_context(ctx); + if (!IS_ERR(l_ctx)) { + p->l_ctx = l_ctx; + } else { + kfree(p); + return NULL; + } p->arg.fh = NFS_FH(inode); p->arg.fl = &p->fl; p->arg.seqid = seqid; @@ -6857,7 +7136,6 @@ static struct nfs4_unlockdata *nfs4_alloc_unlockdata(struct file_lock *fl, p->lsp = lsp; /* Ensure we don't close file until we're done freeing locks! */ p->ctx = get_nfs_open_context(ctx); - p->l_ctx = nfs_get_lock_context(ctx); locks_init_lock(&p->fl); locks_copy_lock(&p->fl, fl); p->server = NFS_SERVER(inode); @@ -6883,6 +7161,7 @@ static void nfs4_locku_done(struct rpc_task *task, void *data) struct nfs4_exception exception = { .inode = calldata->lsp->ls_state->inode, .stateid = &calldata->arg.stateid, + .retrans = calldata->retrans, }; if (!nfs4_sequence_done(task, &calldata->res.seq_res)) @@ -6916,6 +7195,7 @@ static void nfs4_locku_done(struct rpc_task *task, void *data) task->tk_status = nfs4_async_handle_exception(task, calldata->server, task->tk_status, &exception); + calldata->retrans = exception.retrans; if (exception.retry) rpc_restart_call_prepare(task); } @@ -6982,8 +7262,8 @@ static struct rpc_task *nfs4_do_unlck(struct file_lock *fl, /* Ensure this is an unlock - when canceling a lock, the * canceled lock is passed in, and it won't be an unlock. */ - fl->fl_type = F_UNLCK; - if (fl->fl_flags & FL_CLOSE) + fl->c.flc_type = F_UNLCK; + if (fl->c.flc_flags & FL_CLOSE) set_bit(NFS_CONTEXT_UNLOCK, &ctx->flags); data = nfs4_alloc_unlockdata(fl, ctx, lsp, seqid); @@ -7009,11 +7289,11 @@ static int nfs4_proc_unlck(struct nfs4_state *state, int cmd, struct file_lock * struct rpc_task *task; struct nfs_seqid *(*alloc_seqid)(struct nfs_seqid_counter *, gfp_t); int status = 0; - unsigned char fl_flags = request->fl_flags; + unsigned char saved_flags = request->c.flc_flags; status = nfs4_set_lock_state(state, request); /* Unlock _before_ we do the RPC call */ - request->fl_flags |= FL_EXISTS; + request->c.flc_flags |= FL_EXISTS; /* Exclude nfs_delegation_claim_locks() */ mutex_lock(&sp->so_delegreturn_mutex); /* Exclude nfs4_reclaim_open_stateid() - note nesting! */ @@ -7037,14 +7317,16 @@ static int nfs4_proc_unlck(struct nfs4_state *state, int cmd, struct file_lock * status = -ENOMEM; if (IS_ERR(seqid)) goto out; - task = nfs4_do_unlck(request, nfs_file_open_context(request->fl_file), lsp, seqid); + task = nfs4_do_unlck(request, + nfs_file_open_context(request->c.flc_file), + lsp, seqid); status = PTR_ERR(task); if (IS_ERR(task)) goto out; status = rpc_wait_for_completion_task(task); rpc_put_task(task); out: - request->fl_flags = fl_flags; + request->c.flc_flags = saved_flags; trace_nfs4_unlock(request, state, F_SETLK, status); return status; } @@ -7145,7 +7427,6 @@ static void nfs4_lock_done(struct rpc_task *task, void *calldata) { struct nfs4_lockdata *data = calldata; struct nfs4_lock_state *lsp = data->lsp; - struct nfs_server *server = NFS_SERVER(d_inode(data->ctx->dentry)); if (!nfs4_sequence_done(task, &data->res.seq_res)) return; @@ -7153,9 +7434,10 @@ static void nfs4_lock_done(struct rpc_task *task, void *calldata) data->rpc_status = task->tk_status; switch (task->tk_status) { case 0: - renew_lease(server, data->timestamp); + renew_lease(NFS_SERVER(d_inode(data->ctx->dentry)), + data->timestamp); if (data->arg.new_lock && !data->cancelled) { - data->fl.fl_flags &= ~(FL_SLEEP | FL_ACCESS); + data->fl.c.flc_flags &= ~(FL_SLEEP | FL_ACCESS); if (locks_lock_inode_wait(lsp->ls_state->inode, &data->fl) < 0) goto out_restart; } @@ -7166,16 +7448,21 @@ static void nfs4_lock_done(struct rpc_task *task, void *calldata) } else if (!nfs4_update_lock_stateid(lsp, &data->res.stateid)) goto out_restart; break; - case -NFS4ERR_BAD_STATEID: case -NFS4ERR_OLD_STATEID: + if (data->arg.new_lock_owner != 0 && + nfs4_refresh_open_old_stateid(&data->arg.open_stateid, + lsp->ls_state)) + goto out_restart; + if (nfs4_refresh_lock_old_stateid(&data->arg.lock_stateid, lsp)) + goto out_restart; + fallthrough; + case -NFS4ERR_BAD_STATEID: case -NFS4ERR_STALE_STATEID: case -NFS4ERR_EXPIRED: if (data->arg.new_lock_owner != 0) { if (!nfs4_stateid_match(&data->arg.open_stateid, &lsp->ls_state->open_stateid)) goto out_restart; - else if (nfs4_async_handle_error(task, server, lsp->ls_state, NULL) == -EAGAIN) - goto out_restart; } else if (!nfs4_stateid_match(&data->arg.lock_stateid, &lsp->ls_stateid)) goto out_restart; @@ -7251,7 +7538,8 @@ static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *f if (nfs_server_capable(state->inode, NFS_CAP_MOVEABLE)) task_setup_data.flags |= RPC_TASK_MOVEABLE; - data = nfs4_alloc_lockdata(fl, nfs_file_open_context(fl->fl_file), + data = nfs4_alloc_lockdata(fl, + nfs_file_open_context(fl->c.flc_file), fl->fl_u.nfs4_fl.owner, GFP_KERNEL); if (data == NULL) return -ENOMEM; @@ -7357,10 +7645,10 @@ static int _nfs4_proc_setlk(struct nfs4_state *state, int cmd, struct file_lock { struct nfs_inode *nfsi = NFS_I(state->inode); struct nfs4_state_owner *sp = state->owner; - unsigned char fl_flags = request->fl_flags; + unsigned char flags = request->c.flc_flags; int status; - request->fl_flags |= FL_ACCESS; + request->c.flc_flags |= FL_ACCESS; status = locks_lock_inode_wait(state->inode, request); if (status < 0) goto out; @@ -7369,7 +7657,7 @@ static int _nfs4_proc_setlk(struct nfs4_state *state, int cmd, struct file_lock if (test_bit(NFS_DELEGATED_STATE, &state->flags)) { /* Yes: cache locks! */ /* ...but avoid races with delegation recall... */ - request->fl_flags = fl_flags & ~FL_SLEEP; + request->c.flc_flags = flags & ~FL_SLEEP; status = locks_lock_inode_wait(state->inode, request); up_read(&nfsi->rwsem); mutex_unlock(&sp->so_delegreturn_mutex); @@ -7379,7 +7667,7 @@ static int _nfs4_proc_setlk(struct nfs4_state *state, int cmd, struct file_lock mutex_unlock(&sp->so_delegreturn_mutex); status = _nfs4_do_setlk(state, cmd, request, NFS_LOCK_NEW); out: - request->fl_flags = fl_flags; + request->c.flc_flags = flags; return status; } @@ -7521,7 +7809,7 @@ nfs4_proc_lock(struct file *filp, int cmd, struct file_lock *request) if (!(IS_SETLK(cmd) || IS_SETLKW(cmd))) return -EINVAL; - if (request->fl_type == F_UNLCK) { + if (lock_is_unlock(request)) { if (state != NULL) return nfs4_proc_unlck(state, cmd, request); return 0; @@ -7530,7 +7818,7 @@ nfs4_proc_lock(struct file *filp, int cmd, struct file_lock *request) if (state == NULL) return -ENOLCK; - if ((request->fl_flags & FL_POSIX) && + if ((request->c.flc_flags & FL_POSIX) && !test_bit(NFS_STATE_POSIX_LOCKS, &state->flags)) return -ENOLCK; @@ -7538,7 +7826,7 @@ nfs4_proc_lock(struct file *filp, int cmd, struct file_lock *request) * Don't rely on the VFS having checked the file open mode, * since it won't do this for flock() locks. */ - switch (request->fl_type) { + switch (request->c.flc_type) { case F_RDLCK: if (!(filp->f_mode & FMODE_READ)) return -EBADF; @@ -7560,7 +7848,7 @@ static int nfs4_delete_lease(struct file *file, void **priv) return generic_setlease(file, F_UNLCK, NULL, priv); } -static int nfs4_add_lease(struct file *file, long arg, struct file_lock **lease, +static int nfs4_add_lease(struct file *file, int arg, struct file_lease **lease, void **priv) { struct inode *inode = file_inode(file); @@ -7568,17 +7856,17 @@ static int nfs4_add_lease(struct file *file, long arg, struct file_lock **lease, int ret; /* No delegation, no lease */ - if (!nfs4_have_delegation(inode, type)) + if (!nfs4_have_delegation(inode, type, 0)) return -EAGAIN; ret = generic_setlease(file, arg, lease, priv); - if (ret || nfs4_have_delegation(inode, type)) + if (ret || nfs4_have_delegation(inode, type, 0)) return ret; /* We raced with a delegation return */ nfs4_delete_lease(file, priv); return -EAGAIN; } -int nfs4_proc_setlease(struct file *file, long arg, struct file_lock **lease, +int nfs4_proc_setlease(struct file *file, int arg, struct file_lease **lease, void **priv) { switch (arg) { @@ -7602,10 +7890,10 @@ int nfs4_lock_delegation_recall(struct file_lock *fl, struct nfs4_state *state, return err; do { err = _nfs4_do_setlk(state, F_SETLK, fl, NFS_LOCK_NEW); - if (err != -NFS4ERR_DELAY) + if (err != -NFS4ERR_DELAY && err != -NFS4ERR_GRACE) break; ssleep(1); - } while (err == -NFS4ERR_DELAY); + } while (err == -NFS4ERR_DELAY || err == -NFSERR_GRACE); return nfs4_handle_delegation_recall_error(server, state, stateid, fl, err); } @@ -7692,7 +7980,7 @@ nfs4_release_lockowner(struct nfs_server *server, struct nfs4_lock_state *lsp) #define XATTR_NAME_NFSV4_ACL "system.nfs4_acl" static int nfs4_xattr_set_nfs4_acl(const struct xattr_handler *handler, - struct user_namespace *mnt_userns, + struct mnt_idmap *idmap, struct dentry *unused, struct inode *inode, const char *key, const void *buf, size_t buflen, int flags) @@ -7716,7 +8004,7 @@ static bool nfs4_xattr_list_nfs4_acl(struct dentry *dentry) #define XATTR_NAME_NFSV4_DACL "system.nfs4_dacl" static int nfs4_xattr_set_nfs4_dacl(const struct xattr_handler *handler, - struct user_namespace *mnt_userns, + struct mnt_idmap *idmap, struct dentry *unused, struct inode *inode, const char *key, const void *buf, size_t buflen, int flags) @@ -7739,7 +8027,7 @@ static bool nfs4_xattr_list_nfs4_dacl(struct dentry *dentry) #define XATTR_NAME_NFSV4_SACL "system.nfs4_sacl" static int nfs4_xattr_set_nfs4_sacl(const struct xattr_handler *handler, - struct user_namespace *mnt_userns, + struct mnt_idmap *idmap, struct dentry *unused, struct inode *inode, const char *key, const void *buf, size_t buflen, int flags) @@ -7764,7 +8052,7 @@ static bool nfs4_xattr_list_nfs4_sacl(struct dentry *dentry) #ifdef CONFIG_NFS_V4_SECURITY_LABEL static int nfs4_xattr_set_nfs4_label(const struct xattr_handler *handler, - struct user_namespace *mnt_userns, + struct mnt_idmap *idmap, struct dentry *unused, struct inode *inode, const char *key, const void *buf, size_t buflen, int flags) @@ -7815,7 +8103,7 @@ nfs4_listxattr_nfs4_label(struct inode *inode, char *list, size_t list_len) #ifdef CONFIG_NFS_V4_2 static int nfs4_xattr_set_nfs4_user(const struct xattr_handler *handler, - struct user_namespace *mnt_userns, + struct mnt_idmap *idmap, struct dentry *unused, struct inode *inode, const char *key, const void *buf, size_t buflen, int flags) @@ -8779,6 +9067,8 @@ nfs4_run_exchange_id(struct nfs_client *clp, const struct cred *cred, #ifdef CONFIG_NFS_V4_1_MIGRATION calldata->args.flags |= EXCHGID4_FLAG_SUPP_MOVED_MIGR; #endif + if (test_bit(NFS_CS_PNFS, &clp->cl_flags)) + calldata->args.flags |= EXCHGID4_FLAG_USE_PNFS_DS; msg.rpc_argp = &calldata->args; msg.rpc_resp = &calldata->res; task_setup_data.callback_data = calldata; @@ -8920,23 +9210,30 @@ void nfs4_test_session_trunk(struct rpc_clnt *clnt, struct rpc_xprt *xprt, sp4_how = (adata->clp->cl_sp4_flags == 0 ? SP4_NONE : SP4_MACH_CRED); +try_again: /* Test connection for session trunking. Async exchange_id call */ task = nfs4_run_exchange_id(adata->clp, adata->cred, sp4_how, xprt); if (IS_ERR(task)) return; status = task->tk_status; - if (status == 0) + if (status == 0) { status = nfs4_detect_session_trunking(adata->clp, task->tk_msg.rpc_resp, xprt); - + trace_nfs4_trunked_exchange_id(adata->clp, + xprt->address_strings[RPC_DISPLAY_ADDR], status); + } if (status == 0) rpc_clnt_xprt_switch_add_xprt(clnt, xprt); - else if (rpc_clnt_xprt_switch_has_addr(clnt, + else if (status != -NFS4ERR_DELAY && rpc_clnt_xprt_switch_has_addr(clnt, (struct sockaddr *)&xprt->addr)) rpc_clnt_xprt_switch_remove_xprt(clnt, xprt); rpc_put_task(task); + if (status == -NFS4ERR_DELAY) { + ssleep(1); + goto try_again; + } } EXPORT_SYMBOL_GPL(nfs4_test_session_trunk); @@ -9163,7 +9460,7 @@ static int nfs4_verify_back_channel_attrs(struct nfs41_create_session_args *args goto out; if (rcvd->max_rqst_sz > sent->max_rqst_sz) return -EINVAL; - if (rcvd->max_resp_sz < sent->max_resp_sz) + if (rcvd->max_resp_sz > sent->max_resp_sz) return -EINVAL; if (rcvd->max_resp_sz_cached > sent->max_resp_sz_cached) return -EINVAL; @@ -9357,7 +9654,7 @@ static void nfs41_sequence_call_done(struct rpc_task *task, void *data) return; trace_nfs4_sequence(clp, task->tk_status); - if (task->tk_status < 0) { + if (task->tk_status < 0 && clp->cl_cons_state >= 0) { dprintk("%s ERROR %d\n", __func__, task->tk_status); if (refcount_read(&clp->cl_count) == 1) return; @@ -9607,6 +9904,9 @@ nfs4_layoutget_handle_exception(struct rpc_task *task, nfs4_sequence_free_slot(&lgp->res.seq_res); + exception->state = NULL; + exception->stateid = NULL; + switch (nfs4err) { case 0: goto out; @@ -9642,6 +9942,7 @@ nfs4_layoutget_handle_exception(struct rpc_task *task, status = -EBUSY; break; case -NFS4ERR_RECALLCONFLICT: + case -NFS4ERR_RETURNCONFLICT: status = -ERECALLCONFLICT; break; case -NFS4ERR_DELEG_REVOKED: @@ -9702,7 +10003,8 @@ static const struct rpc_call_ops nfs4_layoutget_call_ops = { }; struct pnfs_layout_segment * -nfs4_proc_layoutget(struct nfs4_layoutget *lgp, long *timeout) +nfs4_proc_layoutget(struct nfs4_layoutget *lgp, + struct nfs4_exception *exception) { struct inode *inode = lgp->args.inode; struct nfs_server *server = NFS_SERVER(inode); @@ -9722,13 +10024,10 @@ nfs4_proc_layoutget(struct nfs4_layoutget *lgp, long *timeout) RPC_TASK_MOVEABLE, }; struct pnfs_layout_segment *lseg = NULL; - struct nfs4_exception exception = { - .inode = inode, - .timeout = *timeout, - }; int status = 0; nfs4_init_sequence(&lgp->args.seq_args, &lgp->res.seq_res, 0, 0); + exception->retry = 0; task = rpc_run_task(&task_setup_data); if (IS_ERR(task)) @@ -9739,11 +10038,12 @@ nfs4_proc_layoutget(struct nfs4_layoutget *lgp, long *timeout) goto out; if (task->tk_status < 0) { - status = nfs4_layoutget_handle_exception(task, lgp, &exception); - *timeout = exception.timeout; + exception->retry = 1; + status = nfs4_layoutget_handle_exception(task, lgp, exception); } else if (lgp->res.layoutp->len == 0) { + exception->retry = 1; status = -EAGAIN; - *timeout = nfs4_update_delay(&exception.timeout); + nfs4_update_delay(&exception->timeout); } else lseg = pnfs_layout_process(lgp); out: @@ -9781,6 +10081,11 @@ static void nfs4_layoutreturn_done(struct rpc_task *task, void *calldata) if (!nfs41_sequence_process(task, &lrp->res.seq_res)) return; + if (task->tk_rpc_status == -ETIMEDOUT) { + lrp->rpc_status = -EAGAIN; + lrp->res.lrs_present = 0; + return; + } /* * Was there an RPC level error? Assume the call succeeded, * and that we need to release the layout @@ -9800,13 +10105,25 @@ static void nfs4_layoutreturn_done(struct rpc_task *task, void *calldata) fallthrough; default: task->tk_status = 0; + lrp->res.lrs_present = 0; fallthrough; case 0: break; + case -NFS4ERR_BADSESSION: + case -NFS4ERR_DEADSESSION: + case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION: + nfs4_schedule_session_recovery(server->nfs_client->cl_session, + task->tk_status); + lrp->res.lrs_present = 0; + lrp->rpc_status = -EAGAIN; + task->tk_status = 0; + break; case -NFS4ERR_DELAY: - if (nfs4_async_handle_error(task, server, NULL, NULL) != -EAGAIN) - break; - goto out_restart; + if (nfs4_async_handle_error(task, server, NULL, NULL) == + -EAGAIN) + goto out_restart; + lrp->res.lrs_present = 0; + break; } return; out_restart: @@ -9820,8 +10137,13 @@ static void nfs4_layoutreturn_release(void *calldata) struct nfs4_layoutreturn *lrp = calldata; struct pnfs_layout_hdr *lo = lrp->args.layout; - pnfs_layoutreturn_free_lsegs(lo, &lrp->args.stateid, &lrp->args.range, + if (lrp->rpc_status == 0 || !lrp->inode) + pnfs_layoutreturn_free_lsegs( + lo, &lrp->args.stateid, &lrp->args.range, lrp->res.lrs_present ? &lrp->res.stateid : NULL); + else + pnfs_layoutreturn_retry_later(lo, &lrp->args.stateid, + &lrp->args.range); nfs4_sequence_free_slot(&lrp->res.seq_res); if (lrp->ld_private.ops && lrp->ld_private.ops->free) lrp->ld_private.ops->free(&lrp->ld_private); @@ -9837,7 +10159,7 @@ static const struct rpc_call_ops nfs4_layoutreturn_call_ops = { .rpc_release = nfs4_layoutreturn_release, }; -int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp, bool sync) +int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp, unsigned int flags) { struct rpc_task *task; struct rpc_message msg = { @@ -9860,7 +10182,7 @@ int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp, bool sync) &task_setup_data.rpc_client, &msg); lrp->inode = nfs_igrab_and_active(lrp->args.inode); - if (!sync) { + if (flags & PNFS_FL_LAYOUTRETURN_ASYNC) { if (!lrp->inode) { nfs4_layoutreturn_release(lrp); return -EAGAIN; @@ -9868,6 +10190,8 @@ int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp, bool sync) task_setup_data.flags |= RPC_TASK_ASYNC; } if (!lrp->inode) + flags |= PNFS_FL_LAYOUTRETURN_PRIVILEGED; + if (flags & PNFS_FL_LAYOUTRETURN_PRIVILEGED) nfs4_init_sequence(&lrp->args.seq_args, &lrp->res.seq_res, 1, 1); else @@ -9876,7 +10200,7 @@ int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp, bool sync) task = rpc_run_task(&task_setup_data); if (IS_ERR(task)) return PTR_ERR(task); - if (sync) + if (!(flags & PNFS_FL_LAYOUTRETURN_ASYNC)) status = task->tk_status; trace_nfs4_layoutreturn(lrp->args.inode, &lrp->args.stateid, status); dprintk("<-- %s status=%d\n", __func__, status); @@ -10038,10 +10362,10 @@ nfs4_proc_layoutcommit(struct nfs4_layoutcommit_data *data, bool sync) * Use the state managment nfs_client cl_rpcclient, which uses krb5i (if * possible) as per RFC3530bis and RFC5661 Security Considerations sections */ -static int -_nfs41_proc_secinfo_no_name(struct nfs_server *server, struct nfs_fh *fhandle, - struct nfs_fsinfo *info, - struct nfs4_secinfo_flavors *flavors, bool use_integrity) +static int _nfs41_proc_secinfo_no_name(struct nfs_server *server, + struct nfs_fh *fhandle, + struct nfs4_secinfo_flavors *flavors, + bool use_integrity) { struct nfs41_secinfo_no_name_args args = { .style = SECINFO_STYLE_CURRENT_FH, @@ -10085,9 +10409,9 @@ _nfs41_proc_secinfo_no_name(struct nfs_server *server, struct nfs_fh *fhandle, return status; } -static int -nfs41_proc_secinfo_no_name(struct nfs_server *server, struct nfs_fh *fhandle, - struct nfs_fsinfo *info, struct nfs4_secinfo_flavors *flavors) +static int nfs41_proc_secinfo_no_name(struct nfs_server *server, + struct nfs_fh *fhandle, + struct nfs4_secinfo_flavors *flavors) { struct nfs4_exception exception = { .interruptible = true, @@ -10099,7 +10423,7 @@ nfs41_proc_secinfo_no_name(struct nfs_server *server, struct nfs_fh *fhandle, /* try to use integrity protection with machine cred */ if (_nfs4_is_integrity_protected(server->nfs_client)) - err = _nfs41_proc_secinfo_no_name(server, fhandle, info, + err = _nfs41_proc_secinfo_no_name(server, fhandle, flavors, true); /* @@ -10109,7 +10433,7 @@ nfs41_proc_secinfo_no_name(struct nfs_server *server, struct nfs_fh *fhandle, * the current filesystem's rpc_client and the user cred. */ if (err == -NFS4ERR_WRONGSEC) - err = _nfs41_proc_secinfo_no_name(server, fhandle, info, + err = _nfs41_proc_secinfo_no_name(server, fhandle, flavors, false); switch (err) { @@ -10125,9 +10449,8 @@ out: return err; } -static int -nfs41_find_root_sec(struct nfs_server *server, struct nfs_fh *fhandle, - struct nfs_fsinfo *info) +static int nfs41_find_root_sec(struct nfs_server *server, + struct nfs_fh *fhandle, struct nfs_fattr *fattr) { int err; struct page *page; @@ -10143,14 +10466,14 @@ nfs41_find_root_sec(struct nfs_server *server, struct nfs_fh *fhandle, } flavors = page_address(page); - err = nfs41_proc_secinfo_no_name(server, fhandle, info, flavors); + err = nfs41_proc_secinfo_no_name(server, fhandle, flavors); /* * Fall back on "guess and check" method if * the server doesn't support SECINFO_NO_NAME */ if (err == -NFS4ERR_WRONGSEC || err == -ENOTSUPP) { - err = nfs4_find_root_sec(server, fhandle, info); + err = nfs4_find_root_sec(server, fhandle, fattr); goto out_freepage; } if (err) @@ -10175,8 +10498,8 @@ nfs41_find_root_sec(struct nfs_server *server, struct nfs_fh *fhandle, flavor = RPC_AUTH_MAXFLAVOR; if (flavor != RPC_AUTH_MAXFLAVOR) { - err = nfs4_lookup_root_sec(server, fhandle, - info, flavor); + err = nfs4_lookup_root_sec(server, fhandle, fattr, + flavor); if (!err) break; } @@ -10194,12 +10517,12 @@ out: } static int _nfs41_test_stateid(struct nfs_server *server, - nfs4_stateid *stateid, - const struct cred *cred) + const nfs4_stateid *stateid, + const struct cred *cred) { int status; struct nfs41_test_stateid_args args = { - .stateid = stateid, + .stateid = *stateid, }; struct nfs41_test_stateid_res res; struct rpc_message msg = { @@ -10255,8 +10578,8 @@ static void nfs4_handle_delay_or_session_error(struct nfs_server *server, * failed or the state ID is not currently valid. */ static int nfs41_test_stateid(struct nfs_server *server, - nfs4_stateid *stateid, - const struct cred *cred) + const nfs4_stateid *stateid, + const struct cred *cred) { struct nfs4_exception exception = { .interruptible = true, @@ -10323,7 +10646,7 @@ static const struct rpc_call_ops nfs41_free_stateid_ops = { * Note: this function is always asynchronous. */ static int nfs41_free_stateid(struct nfs_server *server, - const nfs4_stateid *stateid, + nfs4_stateid *stateid, const struct cred *cred, bool privileged) { @@ -10363,6 +10686,7 @@ static int nfs41_free_stateid(struct nfs_server *server, if (IS_ERR(task)) return PTR_ERR(task); rpc_put_task(task); + stateid->type = NFS4_FREED_STATEID_TYPE; return 0; } @@ -10378,6 +10702,8 @@ nfs41_free_lock_state(struct nfs_server *server, struct nfs4_lock_state *lsp) static bool nfs41_match_stateid(const nfs4_stateid *s1, const nfs4_stateid *s2) { + trace_nfs41_match_stateid(s1, s2); + if (s1->type != s2->type) return false; @@ -10395,6 +10721,8 @@ static bool nfs41_match_stateid(const nfs4_stateid *s1, static bool nfs4_match_stateid(const nfs4_stateid *s1, const nfs4_stateid *s2) { + trace_nfs4_match_stateid(s1, s2); + return nfs4_stateid_match(s1, s2); } @@ -10529,12 +10857,14 @@ static const struct nfs4_minor_version_ops nfs_v4_2_minor_ops = { | NFS_CAP_OFFLOAD_CANCEL | NFS_CAP_COPY_NOTIFY | NFS_CAP_DEALLOCATE + | NFS_CAP_ZERO_RANGE | NFS_CAP_SEEK | NFS_CAP_LAYOUTSTATS | NFS_CAP_CLONE | NFS_CAP_LAYOUTERROR | NFS_CAP_READ_PLUS - | NFS_CAP_MOVEABLE, + | NFS_CAP_MOVEABLE + | NFS_CAP_OFFLOAD_STATUS, .init_client = nfs41_init_client, .shutdown_client = nfs41_shutdown_client, .match_stateid = nfs41_match_stateid, @@ -10563,30 +10893,44 @@ const struct nfs4_minor_version_ops *nfs_v4_minor_ops[] = { static ssize_t nfs4_listxattr(struct dentry *dentry, char *list, size_t size) { - ssize_t error, error2, error3; + ssize_t error, error2, error3, error4 = 0; + size_t left = size; - error = generic_listxattr(dentry, list, size); + error = generic_listxattr(dentry, list, left); if (error < 0) return error; if (list) { list += error; - size -= error; + left -= error; } - error2 = nfs4_listxattr_nfs4_label(d_inode(dentry), list, size); + error2 = nfs4_listxattr_nfs4_label(d_inode(dentry), list, left); if (error2 < 0) return error2; if (list) { list += error2; - size -= error2; + left -= error2; } - error3 = nfs4_listxattr_nfs4_user(d_inode(dentry), list, size); + error3 = nfs4_listxattr_nfs4_user(d_inode(dentry), list, left); if (error3 < 0) return error3; + if (list) { + list += error3; + left -= error3; + } - return error + error2 + error3; + if (!nfs_server_capable(d_inode(dentry), NFS_CAP_SECURITY_LABEL)) { + error4 = security_inode_listsecurity(d_inode(dentry), list, left); + if (error4 < 0) + return error4; + } + + error += error2 + error3 + error4; + if (size && error > size) + return -ERANGE; + return error; } static void nfs4_enable_swap(struct inode *inode) @@ -10604,7 +10948,11 @@ static void nfs4_disable_swap(struct inode *inode) /* The state manager thread will now exit once it is * woken. */ - wake_up_var(&NFS_SERVER(inode)->nfs_client->cl_state); + struct nfs_client *clp = NFS_SERVER(inode)->nfs_client; + + set_bit(NFS4CLNT_RUN_MANAGER, &clp->cl_state); + clear_bit(NFS4CLNT_MANAGER_AVAILABLE, &clp->cl_state); + wake_up_var(&clp->cl_state); } static const struct inode_operations nfs4_dir_inode_operations = { @@ -10631,6 +10979,26 @@ static const struct inode_operations nfs4_file_inode_operations = { .listxattr = nfs4_listxattr, }; +static struct nfs_server *nfs4_clone_server(struct nfs_server *source, + struct nfs_fh *fh, struct nfs_fattr *fattr, + rpc_authflavor_t flavor) +{ + struct nfs_server *server; + int error; + + server = nfs_clone_server(source, fh, fattr, flavor); + if (IS_ERR(server)) + return server; + + error = nfs4_delegation_hash_alloc(server); + if (error) { + nfs_free_server(server); + return ERR_PTR(error); + } + + return server; +} + const struct nfs_rpc_ops nfs_v4_clientops = { .version = 4, /* protocol version */ .dentry_ops = &nfs4_dentry_operations, @@ -10678,11 +11046,12 @@ const struct nfs_rpc_ops nfs_v4_clientops = { .close_context = nfs4_close_context, .open_context = nfs4_atomic_open, .have_delegation = nfs4_have_delegation, + .return_delegation = nfs4_inode_return_delegation, .alloc_client = nfs4_alloc_client, .init_client = nfs4_init_client, .free_client = nfs4_free_client, .create_server = nfs4_create_server, - .clone_server = nfs_clone_server, + .clone_server = nfs4_clone_server, .discover_trunking = nfs4_discover_trunking, .enable_swap = nfs4_enable_swap, .disable_swap = nfs4_disable_swap, @@ -10719,7 +11088,7 @@ static const struct xattr_handler nfs4_xattr_nfs4_user_handler = { }; #endif -const struct xattr_handler *nfs4_xattr_handlers[] = { +const struct xattr_handler * const nfs4_xattr_handlers[] = { &nfs4_xattr_nfs4_acl_handler, #if defined(CONFIG_NFS_V4_1) &nfs4_xattr_nfs4_dacl_handler, |