diff options
Diffstat (limited to 'fs/nfs')
-rw-r--r-- | fs/nfs/Kconfig | 2 | ||||
-rw-r--r-- | fs/nfs/callback_proc.c | 2 | ||||
-rw-r--r-- | fs/nfs/client.c | 2 | ||||
-rw-r--r-- | fs/nfs/delegation.c | 36 | ||||
-rw-r--r-- | fs/nfs/delegation.h | 2 | ||||
-rw-r--r-- | fs/nfs/dir.c | 90 | ||||
-rw-r--r-- | fs/nfs/direct.c | 2 | ||||
-rw-r--r-- | fs/nfs/flexfilelayout/flexfilelayoutdev.c | 2 | ||||
-rw-r--r-- | fs/nfs/inode.c | 1 | ||||
-rw-r--r-- | fs/nfs/nfs4_fs.h | 3 | ||||
-rw-r--r-- | fs/nfs/nfs4client.c | 7 | ||||
-rw-r--r-- | fs/nfs/nfs4file.c | 14 | ||||
-rw-r--r-- | fs/nfs/nfs4proc.c | 57 | ||||
-rw-r--r-- | fs/nfs/nfs4state.c | 31 | ||||
-rw-r--r-- | fs/nfs/nfs4xdr.c | 2 | ||||
-rw-r--r-- | fs/nfs/pagelist.c | 19 | ||||
-rw-r--r-- | fs/nfs/pnfs.c | 2 | ||||
-rw-r--r-- | fs/nfs/proc.c | 7 | ||||
-rw-r--r-- | fs/nfs/super.c | 5 |
19 files changed, 178 insertions, 108 deletions
diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig index b1daeafbea92..c3428767332c 100644 --- a/fs/nfs/Kconfig +++ b/fs/nfs/Kconfig @@ -89,7 +89,7 @@ config NFS_V4 config NFS_SWAP bool "Provide swap over NFS support" default n - depends on NFS_FS + depends on NFS_FS && SWAP select SUNRPC_SWAP help This option enables swapon to work on files located on NFS mounts. diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c index 9d7537446260..0d4a56c77a1a 100644 --- a/fs/nfs/callback_proc.c +++ b/fs/nfs/callback_proc.c @@ -419,7 +419,7 @@ static bool referring_call_exists(struct nfs_client *clp, uint32_t nrclists, struct referring_call_list *rclists) { - bool status = 0; + bool status = false; int i, j; struct nfs4_session *session; struct nfs4_slot_table *tbl; diff --git a/fs/nfs/client.c b/fs/nfs/client.c index ebecfb8fba06..28d8a57a9908 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -440,7 +440,7 @@ void nfs_init_timeout_values(struct rpc_timeout *to, int proto, case XPRT_TRANSPORT_RDMA: if (retrans == NFS_UNSPEC_RETRANS) to->to_retries = NFS_DEF_TCP_RETRANS; - if (timeo == NFS_UNSPEC_TIMEO || to->to_retries == 0) + if (timeo == NFS_UNSPEC_TIMEO || to->to_initval == 0) to->to_initval = NFS_DEF_TCP_TIMEO * HZ / 10; if (to->to_initval > NFS_MAX_TCP_TIMEOUT) to->to_initval = NFS_MAX_TCP_TIMEOUT; diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c index dff600ae0d74..014039618cff 100644 --- a/fs/nfs/delegation.c +++ b/fs/nfs/delegation.c @@ -52,6 +52,16 @@ nfs4_is_valid_delegation(const struct nfs_delegation *delegation, return false; } +struct nfs_delegation *nfs4_get_valid_delegation(const struct inode *inode) +{ + struct nfs_delegation *delegation; + + delegation = rcu_dereference(NFS_I(inode)->delegation); + if (nfs4_is_valid_delegation(delegation, 0)) + return delegation; + return NULL; +} + static int nfs4_do_check_delegation(struct inode *inode, fmode_t flags, bool mark) { @@ -91,7 +101,7 @@ int nfs4_check_delegation(struct inode *inode, fmode_t flags) return nfs4_do_check_delegation(inode, flags, false); } -static int nfs_delegation_claim_locks(struct nfs_open_context *ctx, struct nfs4_state *state, const nfs4_stateid *stateid) +static int nfs_delegation_claim_locks(struct nfs4_state *state, const nfs4_stateid *stateid) { struct inode *inode = state->inode; struct file_lock *fl; @@ -106,7 +116,7 @@ static int nfs_delegation_claim_locks(struct nfs_open_context *ctx, struct nfs4_ spin_lock(&flctx->flc_lock); restart: list_for_each_entry(fl, list, fl_list) { - if (nfs_file_open_context(fl->fl_file) != ctx) + if (nfs_file_open_context(fl->fl_file)->state != state) continue; spin_unlock(&flctx->flc_lock); status = nfs4_lock_delegation_recall(fl, state, stateid); @@ -153,7 +163,7 @@ again: seq = raw_seqcount_begin(&sp->so_reclaim_seqcount); err = nfs4_open_delegation_recall(ctx, state, stateid, type); if (!err) - err = nfs_delegation_claim_locks(ctx, state, stateid); + err = nfs_delegation_claim_locks(state, stateid); if (!err && read_seqcount_retry(&sp->so_reclaim_seqcount, seq)) err = -EAGAIN; mutex_unlock(&sp->so_delegreturn_mutex); @@ -224,6 +234,8 @@ static struct inode *nfs_delegation_grab_inode(struct nfs_delegation *delegation spin_lock(&delegation->lock); if (delegation->inode != NULL) inode = igrab(delegation->inode); + if (!inode) + set_bit(NFS_DELEGATION_INODE_FREEING, &delegation->flags); spin_unlock(&delegation->lock); return inode; } @@ -857,10 +869,11 @@ restart: list_for_each_entry_rcu(server, &clp->cl_superblocks, client_link) { list_for_each_entry_rcu(delegation, &server->delegations, super_list) { - if (test_bit(NFS_DELEGATION_RETURNING, - &delegation->flags)) - continue; - if (test_bit(NFS_DELEGATION_NEED_RECLAIM, + if (test_bit(NFS_DELEGATION_INODE_FREEING, + &delegation->flags) || + test_bit(NFS_DELEGATION_RETURNING, + &delegation->flags) || + test_bit(NFS_DELEGATION_NEED_RECLAIM, &delegation->flags) == 0) continue; if (!nfs_sb_active(server->super)) @@ -965,10 +978,11 @@ restart: list_for_each_entry_rcu(server, &clp->cl_superblocks, client_link) { list_for_each_entry_rcu(delegation, &server->delegations, super_list) { - if (test_bit(NFS_DELEGATION_RETURNING, - &delegation->flags)) - continue; - if (test_bit(NFS_DELEGATION_TEST_EXPIRED, + if (test_bit(NFS_DELEGATION_INODE_FREEING, + &delegation->flags) || + test_bit(NFS_DELEGATION_RETURNING, + &delegation->flags) || + test_bit(NFS_DELEGATION_TEST_EXPIRED, &delegation->flags) == 0) continue; if (!nfs_sb_active(server->super)) diff --git a/fs/nfs/delegation.h b/fs/nfs/delegation.h index e9d555796873..f72095bf9e10 100644 --- a/fs/nfs/delegation.h +++ b/fs/nfs/delegation.h @@ -33,6 +33,7 @@ enum { NFS_DELEGATION_RETURNING, NFS_DELEGATION_REVOKED, NFS_DELEGATION_TEST_EXPIRED, + NFS_DELEGATION_INODE_FREEING, }; int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs_openres *res); @@ -62,6 +63,7 @@ int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state int nfs4_lock_delegation_recall(struct file_lock *fl, struct nfs4_state *state, const nfs4_stateid *stateid); bool nfs4_copy_delegation_stateid(struct inode *inode, fmode_t flags, nfs4_stateid *dst, struct rpc_cred **cred); +struct nfs_delegation *nfs4_get_valid_delegation(const struct inode *inode); void nfs_mark_delegation_referenced(struct nfs_delegation *delegation); int nfs4_have_delegation(struct inode *inode, fmode_t flags); int nfs4_check_delegation(struct inode *inode, fmode_t flags); diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 1e5321d1ed22..2517fcd423b6 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -57,7 +57,7 @@ static void nfs_readdir_clear_array(struct page*); const struct file_operations nfs_dir_operations = { .llseek = nfs_llseek_dir, .read = generic_read_dir, - .iterate_shared = nfs_readdir, + .iterate = nfs_readdir, .open = nfs_opendir, .release = nfs_closedir, .fsync = nfs_fsync_dir, @@ -145,7 +145,6 @@ struct nfs_cache_array_entry { }; struct nfs_cache_array { - atomic_t refcount; int size; int eof_index; u64 last_cookie; @@ -170,6 +169,17 @@ typedef struct { unsigned int eof:1; } nfs_readdir_descriptor_t; +static +void nfs_readdir_init_array(struct page *page) +{ + struct nfs_cache_array *array; + + array = kmap_atomic(page); + memset(array, 0, sizeof(struct nfs_cache_array)); + array->eof_index = -1; + kunmap_atomic(array); +} + /* * The caller is responsible for calling nfs_readdir_release_array(page) */ @@ -201,18 +211,10 @@ void nfs_readdir_clear_array(struct page *page) int i; array = kmap_atomic(page); - if (atomic_dec_and_test(&array->refcount)) - for (i = 0; i < array->size; i++) - kfree(array->array[i].string.name); - kunmap_atomic(array); -} - -static bool grab_page(struct page *page) -{ - struct nfs_cache_array *array = kmap_atomic(page); - bool res = atomic_inc_not_zero(&array->refcount); + for (i = 0; i < array->size; i++) + kfree(array->array[i].string.name); + array->size = 0; kunmap_atomic(array); - return res; } /* @@ -287,7 +289,7 @@ int nfs_readdir_search_for_pos(struct nfs_cache_array *array, nfs_readdir_descri desc->cache_entry_index = index; return 0; out_eof: - desc->eof = 1; + desc->eof = true; return -EBADCOOKIE; } @@ -341,7 +343,7 @@ int nfs_readdir_search_for_cookie(struct nfs_cache_array *array, nfs_readdir_des if (array->eof_index >= 0) { status = -EBADCOOKIE; if (*desc->dir_cookie == array->last_cookie) - desc->eof = 1; + desc->eof = true; } out: return status; @@ -653,6 +655,8 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descriptor_t *desc, struct page *page, int status = -ENOMEM; unsigned int array_size = ARRAY_SIZE(pages); + nfs_readdir_init_array(page); + entry.prev_cookie = 0; entry.cookie = desc->last_cookie; entry.eof = 0; @@ -673,9 +677,6 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descriptor_t *desc, struct page *page, status = PTR_ERR(array); goto out_label_free; } - memset(array, 0, sizeof(struct nfs_cache_array)); - atomic_set(&array->refcount, 1); - array->eof_index = -1; status = nfs_readdir_alloc_pages(pages, array_size); if (status < 0) @@ -730,6 +731,7 @@ int nfs_readdir_filler(nfs_readdir_descriptor_t *desc, struct page* page) unlock_page(page); return 0; error: + nfs_readdir_clear_array(page); unlock_page(page); return ret; } @@ -737,7 +739,6 @@ int nfs_readdir_filler(nfs_readdir_descriptor_t *desc, struct page* page) static void cache_page_release(nfs_readdir_descriptor_t *desc) { - nfs_readdir_clear_array(desc->page); put_page(desc->page); desc->page = NULL; } @@ -745,33 +746,34 @@ void cache_page_release(nfs_readdir_descriptor_t *desc) static struct page *get_cache_page(nfs_readdir_descriptor_t *desc) { - struct page *page; - - for (;;) { - page = read_cache_page(desc->file->f_mapping, + return read_cache_page(desc->file->f_mapping, desc->page_index, (filler_t *)nfs_readdir_filler, desc); - if (IS_ERR(page) || grab_page(page)) - break; - put_page(page); - } - return page; } /* * Returns 0 if desc->dir_cookie was found on page desc->page_index + * and locks the page to prevent removal from the page cache. */ static -int find_cache_page(nfs_readdir_descriptor_t *desc) +int find_and_lock_cache_page(nfs_readdir_descriptor_t *desc) { int res; desc->page = get_cache_page(desc); if (IS_ERR(desc->page)) return PTR_ERR(desc->page); - - res = nfs_readdir_search_array(desc); + res = lock_page_killable(desc->page); if (res != 0) - cache_page_release(desc); + goto error; + res = -EAGAIN; + if (desc->page->mapping != NULL) { + res = nfs_readdir_search_array(desc); + if (res == 0) + return 0; + } + unlock_page(desc->page); +error: + cache_page_release(desc); return res; } @@ -786,7 +788,7 @@ int readdir_search_pagecache(nfs_readdir_descriptor_t *desc) desc->last_cookie = 0; } do { - res = find_cache_page(desc); + res = find_and_lock_cache_page(desc); } while (res == -EAGAIN); return res; } @@ -815,7 +817,7 @@ int nfs_do_filldir(nfs_readdir_descriptor_t *desc) ent = &array->array[i]; if (!dir_emit(desc->ctx, ent->string.name, ent->string.len, nfs_compat_user_ino64(ent->ino), ent->d_type)) { - desc->eof = 1; + desc->eof = true; break; } desc->ctx->pos++; @@ -827,11 +829,10 @@ int nfs_do_filldir(nfs_readdir_descriptor_t *desc) ctx->duped = 1; } if (array->eof_index >= 0) - desc->eof = 1; + desc->eof = true; nfs_readdir_release_array(desc->page); out: - cache_page_release(desc); dfprintk(DIRCACHE, "NFS: nfs_do_filldir() filling ended @ cookie %Lu; returning = %d\n", (unsigned long long)*desc->dir_cookie, res); return res; @@ -877,13 +878,13 @@ int uncached_readdir(nfs_readdir_descriptor_t *desc) status = nfs_do_filldir(desc); + out_release: + nfs_readdir_clear_array(desc->page); + cache_page_release(desc); out: dfprintk(DIRCACHE, "NFS: %s: returns %d\n", __func__, status); return status; - out_release: - cache_page_release(desc); - goto out; } /* The file offset position represents the dirent entry number. A @@ -928,7 +929,7 @@ static int nfs_readdir(struct file *file, struct dir_context *ctx) if (res == -EBADCOOKIE) { res = 0; /* This means either end of directory */ - if (*desc->dir_cookie && desc->eof == 0) { + if (*desc->dir_cookie && !desc->eof) { /* Or that the server has 'lost' a cookie */ res = uncached_readdir(desc); if (res == 0) @@ -948,6 +949,8 @@ static int nfs_readdir(struct file *file, struct dir_context *ctx) break; res = nfs_do_filldir(desc); + unlock_page(desc->page); + cache_page_release(desc); if (res < 0) break; } while (!desc->eof); @@ -960,11 +963,13 @@ out: static loff_t nfs_llseek_dir(struct file *filp, loff_t offset, int whence) { + struct inode *inode = file_inode(filp); struct nfs_open_dir_context *dir_ctx = filp->private_data; dfprintk(FILE, "NFS: llseek dir(%pD2, %lld, %d)\n", filp, offset, whence); + inode_lock(inode); switch (whence) { case 1: offset += filp->f_pos; @@ -972,13 +977,16 @@ static loff_t nfs_llseek_dir(struct file *filp, loff_t offset, int whence) if (offset >= 0) break; default: - return -EINVAL; + offset = -EINVAL; + goto out; } if (offset != filp->f_pos) { filp->f_pos = offset; dir_ctx->dir_cookie = 0; dir_ctx->duped = 0; } +out: + inode_unlock(inode); return offset; } diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c index 53f0012ace42..de135d2591ff 100644 --- a/fs/nfs/direct.c +++ b/fs/nfs/direct.c @@ -595,6 +595,7 @@ ssize_t nfs_file_direct_read(struct kiocb *iocb, struct iov_iter *iter) l_ctx = nfs_get_lock_context(dreq->ctx); if (IS_ERR(l_ctx)) { result = PTR_ERR(l_ctx); + nfs_direct_req_release(dreq); goto out_release; } dreq->l_ctx = l_ctx; @@ -1019,6 +1020,7 @@ ssize_t nfs_file_direct_write(struct kiocb *iocb, struct iov_iter *iter) l_ctx = nfs_get_lock_context(dreq->ctx); if (IS_ERR(l_ctx)) { result = PTR_ERR(l_ctx); + nfs_direct_req_release(dreq); goto out_release; } dreq->l_ctx = l_ctx; diff --git a/fs/nfs/flexfilelayout/flexfilelayoutdev.c b/fs/nfs/flexfilelayout/flexfilelayoutdev.c index 90099896b838..c8863563c635 100644 --- a/fs/nfs/flexfilelayout/flexfilelayoutdev.c +++ b/fs/nfs/flexfilelayout/flexfilelayoutdev.c @@ -17,7 +17,7 @@ #define NFSDBG_FACILITY NFSDBG_PNFS_LD -static unsigned int dataserver_timeo = NFS_DEF_TCP_RETRANS; +static unsigned int dataserver_timeo = NFS_DEF_TCP_TIMEO; static unsigned int dataserver_retrans; void nfs4_ff_layout_put_deviceid(struct nfs4_ff_layout_ds *mirror_ds) diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 76ae25661d3f..851274b25d39 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -950,6 +950,7 @@ int nfs_open(struct inode *inode, struct file *filp) nfs_fscache_open_file(inode, filp); return 0; } +EXPORT_SYMBOL_GPL(nfs_open); /* * This function is called whenever some part of NFS notices that diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index 1452177c822d..c719389381dc 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -434,7 +434,8 @@ static inline void nfs4_schedule_session_recovery(struct nfs4_session *session, extern struct nfs4_state_owner *nfs4_get_state_owner(struct nfs_server *, struct rpc_cred *, gfp_t); extern void nfs4_put_state_owner(struct nfs4_state_owner *); -extern void nfs4_purge_state_owners(struct nfs_server *); +extern void nfs4_purge_state_owners(struct nfs_server *, struct list_head *); +extern void nfs4_free_state_owners(struct list_head *head); extern struct nfs4_state * nfs4_get_open_state(struct inode *, struct nfs4_state_owner *); extern void nfs4_put_open_state(struct nfs4_state *); extern void nfs4_close_state(struct nfs4_state *, fmode_t); diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c index 43f42cc30a60..3ee60c533217 100644 --- a/fs/nfs/nfs4client.c +++ b/fs/nfs/nfs4client.c @@ -781,9 +781,12 @@ found: static void nfs4_destroy_server(struct nfs_server *server) { + LIST_HEAD(freeme); + nfs_server_return_all_delegations(server); unset_pnfs_layoutdriver(server); - nfs4_purge_state_owners(server); + nfs4_purge_state_owners(server, &freeme); + nfs4_free_state_owners(&freeme); } /* @@ -844,7 +847,7 @@ nfs4_find_client_sessionid(struct net *net, const struct sockaddr *addr, spin_lock(&nn->nfs_client_lock); list_for_each_entry(clp, &nn->nfs_client_list, cl_share_link) { - if (nfs4_cb_match_client(addr, clp, minorversion) == false) + if (!nfs4_cb_match_client(addr, clp, minorversion)) continue; if (!nfs4_has_session(clp)) diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c index 89a77950e0b0..7138383382ff 100644 --- a/fs/nfs/nfs4file.c +++ b/fs/nfs/nfs4file.c @@ -49,7 +49,7 @@ nfs4_file_open(struct inode *inode, struct file *filp) return err; if ((openflags & O_ACCMODE) == 3) - openflags--; + return nfs_open(inode, filp); /* We can't create new files here */ openflags &= ~(O_CREAT|O_EXCL); @@ -73,13 +73,13 @@ nfs4_file_open(struct inode *inode, struct file *filp) if (IS_ERR(inode)) { err = PTR_ERR(inode); switch (err) { - case -EPERM: - case -EACCES: - case -EDQUOT: - case -ENOSPC: - case -EROFS: - goto out_put_ctx; default: + goto out_put_ctx; + case -ENOENT: + case -ESTALE: + case -EISDIR: + case -ENOTDIR: + case -ELOOP: goto out_drop; } } diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index eb55ab6930b5..632d3c3f8dfb 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -1121,6 +1121,12 @@ struct nfs4_opendata { int cancelled; }; +struct nfs4_open_createattrs { + struct nfs4_label *label; + struct iattr *sattr; + const __u32 verf[2]; +}; + static bool nfs4_clear_cap_atomic_open_v1(struct nfs_server *server, int err, struct nfs4_exception *exception) { @@ -1190,8 +1196,7 @@ static void nfs4_init_opendata_res(struct nfs4_opendata *p) static struct nfs4_opendata *nfs4_opendata_alloc(struct dentry *dentry, struct nfs4_state_owner *sp, fmode_t fmode, int flags, - const struct iattr *attrs, - struct nfs4_label *label, + const struct nfs4_open_createattrs *c, enum open_claim_type4 claim, gfp_t gfp_mask) { @@ -1199,6 +1204,7 @@ static struct nfs4_opendata *nfs4_opendata_alloc(struct dentry *dentry, struct inode *dir = d_inode(parent); struct nfs_server *server = NFS_SERVER(dir); struct nfs_seqid *(*alloc_seqid)(struct nfs_seqid_counter *, gfp_t); + struct nfs4_label *label = (c != NULL) ? c->label : NULL; struct nfs4_opendata *p; p = kzalloc(sizeof(*p), gfp_mask); @@ -1255,15 +1261,11 @@ static struct nfs4_opendata *nfs4_opendata_alloc(struct dentry *dentry, case NFS4_OPEN_CLAIM_DELEG_PREV_FH: p->o_arg.fh = NFS_FH(d_inode(dentry)); } - if (attrs != NULL && attrs->ia_valid != 0) { - __u32 verf[2]; - + if (c != NULL && c->sattr != NULL && c->sattr->ia_valid != 0) { p->o_arg.u.attrs = &p->attrs; - memcpy(&p->attrs, attrs, sizeof(p->attrs)); + memcpy(&p->attrs, c->sattr, sizeof(p->attrs)); - verf[0] = jiffies; - verf[1] = current->pid; - memcpy(p->o_arg.u.verifier.data, verf, + memcpy(p->o_arg.u.verifier.data, c->verf, sizeof(p->o_arg.u.verifier.data)); } p->c_arg.fh = &p->o_res.fh; @@ -1366,8 +1368,6 @@ static int can_open_delegated(struct nfs_delegation *delegation, fmode_t fmode, return 0; if ((delegation->type & fmode) != fmode) return 0; - if (test_bit(NFS_DELEGATION_RETURNING, &delegation->flags)) - return 0; switch (claim) { case NFS4_OPEN_CLAIM_NULL: case NFS4_OPEN_CLAIM_FH: @@ -1626,7 +1626,6 @@ static void nfs4_return_incompatible_delegation(struct inode *inode, fmode_t fmo static struct nfs4_state *nfs4_try_open_cached(struct nfs4_opendata *opendata) { struct nfs4_state *state = opendata->state; - struct nfs_inode *nfsi = NFS_I(state->inode); struct nfs_delegation *delegation; int open_mode = opendata->o_arg.open_flags; fmode_t fmode = opendata->o_arg.fmode; @@ -1643,7 +1642,7 @@ static struct nfs4_state *nfs4_try_open_cached(struct nfs4_opendata *opendata) } spin_unlock(&state->owner->so_lock); rcu_read_lock(); - delegation = rcu_dereference(nfsi->delegation); + delegation = nfs4_get_valid_delegation(state->inode); if (!can_open_delegated(delegation, fmode, claim)) { rcu_read_unlock(); break; @@ -1814,7 +1813,7 @@ static struct nfs4_opendata *nfs4_open_recoverdata_alloc(struct nfs_open_context struct nfs4_opendata *opendata; opendata = nfs4_opendata_alloc(ctx->dentry, state->owner, 0, 0, - NULL, NULL, claim, GFP_NOFS); + NULL, claim, GFP_NOFS); if (opendata == NULL) return ERR_PTR(-ENOMEM); opendata->state = state; @@ -2140,7 +2139,7 @@ static void nfs4_open_prepare(struct rpc_task *task, void *calldata) if (can_open_cached(data->state, data->o_arg.fmode, data->o_arg.open_flags)) goto out_no_action; rcu_read_lock(); - delegation = rcu_dereference(NFS_I(data->state->inode)->delegation); + delegation = nfs4_get_valid_delegation(data->state->inode); if (can_open_delegated(delegation, data->o_arg.fmode, claim)) goto unlock_no_action; rcu_read_unlock(); @@ -2748,7 +2747,8 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata, nfs4_schedule_stateid_recovery(server, state); } out: - nfs4_sequence_free_slot(&opendata->o_res.seq_res); + if (!opendata->cancelled) + nfs4_sequence_free_slot(&opendata->o_res.seq_res); return ret; } @@ -2758,8 +2758,7 @@ out: static int _nfs4_do_open(struct inode *dir, struct nfs_open_context *ctx, int flags, - struct iattr *sattr, - struct nfs4_label *label, + const struct nfs4_open_createattrs *c, int *opened) { struct nfs4_state_owner *sp; @@ -2771,6 +2770,8 @@ static int _nfs4_do_open(struct inode *dir, struct nfs4_threshold **ctx_th = &ctx->mdsthreshold; fmode_t fmode = ctx->mode & (FMODE_READ|FMODE_WRITE|FMODE_EXEC); enum open_claim_type4 claim = NFS4_OPEN_CLAIM_NULL; + struct iattr *sattr = c->sattr; + struct nfs4_label *label = c->label; struct nfs4_label *olabel = NULL; int status; @@ -2789,8 +2790,8 @@ static int _nfs4_do_open(struct inode *dir, status = -ENOMEM; if (d_really_is_positive(dentry)) claim = NFS4_OPEN_CLAIM_FH; - opendata = nfs4_opendata_alloc(dentry, sp, fmode, flags, sattr, - label, claim, GFP_KERNEL); + opendata = nfs4_opendata_alloc(dentry, sp, fmode, flags, + c, claim, GFP_KERNEL); if (opendata == NULL) goto err_put_state_owner; @@ -2871,10 +2872,18 @@ static struct nfs4_state *nfs4_do_open(struct inode *dir, struct nfs_server *server = NFS_SERVER(dir); struct nfs4_exception exception = { }; struct nfs4_state *res; + struct nfs4_open_createattrs c = { + .label = label, + .sattr = sattr, + .verf = { + [0] = (__u32)jiffies, + [1] = (__u32)current->pid, + }, + }; int status; do { - status = _nfs4_do_open(dir, ctx, flags, sattr, label, opened); + status = _nfs4_do_open(dir, ctx, flags, &c, opened); res = ctx->state; trace_nfs4_open_file(ctx, flags, status); if (status == 0) @@ -2907,6 +2916,11 @@ static struct nfs4_state *nfs4_do_open(struct inode *dir, exception.retry = 1; continue; } + if (status == -NFS4ERR_EXPIRED) { + nfs4_schedule_lease_recovery(server->nfs_client); + exception.retry = 1; + continue; + } if (status == -EAGAIN) { /* We must have found a delegation */ exception.retry = 1; @@ -5532,6 +5546,7 @@ int nfs4_proc_setclientid(struct nfs_client *clp, u32 program, } status = task->tk_status; if (setclientid.sc_cred) { + kfree(clp->cl_acceptor); clp->cl_acceptor = rpcauth_stringify_acceptor(setclientid.sc_cred); put_rpccred(setclientid.sc_cred); } diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 857af951831f..4e63daeef633 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -143,6 +143,10 @@ int nfs40_discover_server_trunking(struct nfs_client *clp, /* Sustain the lease, even if it's empty. If the clientid4 * goes stale it's of no use for trunking discovery. */ nfs4_schedule_state_renewal(*result); + + /* If the client state need to recover, do it. */ + if (clp->cl_state) + nfs4_schedule_state_manager(clp); } out: return status; @@ -607,24 +611,39 @@ void nfs4_put_state_owner(struct nfs4_state_owner *sp) /** * nfs4_purge_state_owners - Release all cached state owners * @server: nfs_server with cached state owners to release + * @head: resulting list of state owners * * Called at umount time. Remaining state owners will be on * the LRU with ref count of zero. + * Note that the state owners are not freed, but are added + * to the list @head, which can later be used as an argument + * to nfs4_free_state_owners. */ -void nfs4_purge_state_owners(struct nfs_server *server) +void nfs4_purge_state_owners(struct nfs_server *server, struct list_head *head) { struct nfs_client *clp = server->nfs_client; struct nfs4_state_owner *sp, *tmp; - LIST_HEAD(doomed); spin_lock(&clp->cl_lock); list_for_each_entry_safe(sp, tmp, &server->state_owners_lru, so_lru) { - list_move(&sp->so_lru, &doomed); + list_move(&sp->so_lru, head); nfs4_remove_state_owner_locked(sp); } spin_unlock(&clp->cl_lock); +} - list_for_each_entry_safe(sp, tmp, &doomed, so_lru) { +/** + * nfs4_purge_state_owners - Release all cached state owners + * @head: resulting list of state owners + * + * Frees a list of state owners that was generated by + * nfs4_purge_state_owners + */ +void nfs4_free_state_owners(struct list_head *head) +{ + struct nfs4_state_owner *sp, *tmp; + + list_for_each_entry_safe(sp, tmp, head, so_lru) { list_del(&sp->so_lru); nfs4_free_state_owner(sp); } @@ -1760,12 +1779,13 @@ static int nfs4_do_reclaim(struct nfs_client *clp, const struct nfs4_state_recov struct nfs4_state_owner *sp; struct nfs_server *server; struct rb_node *pos; + LIST_HEAD(freeme); int status = 0; restart: rcu_read_lock(); list_for_each_entry_rcu(server, &clp->cl_superblocks, client_link) { - nfs4_purge_state_owners(server); + nfs4_purge_state_owners(server, &freeme); spin_lock(&clp->cl_lock); for (pos = rb_first(&server->state_owners); pos != NULL; @@ -1794,6 +1814,7 @@ restart: spin_unlock(&clp->cl_lock); } rcu_read_unlock(); + nfs4_free_state_owners(&freeme); return 0; } diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 5e2724a928ed..d7f8d5ce30e3 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -1123,7 +1123,7 @@ static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, } else *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); } - if (bmval[2] & FATTR4_WORD2_SECURITY_LABEL) { + if (label && (bmval[2] & FATTR4_WORD2_SECURITY_LABEL)) { *p++ = cpu_to_be32(label->lfs); *p++ = cpu_to_be32(label->pi); *p++ = cpu_to_be32(label->len); diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c index fad4d5188aaf..529f3a576263 100644 --- a/fs/nfs/pagelist.c +++ b/fs/nfs/pagelist.c @@ -562,7 +562,7 @@ static void nfs_pgio_rpcsetup(struct nfs_pgio_header *hdr, } hdr->res.fattr = &hdr->fattr; - hdr->res.count = count; + hdr->res.count = 0; hdr->res.eof = 0; hdr->res.verf = &hdr->verf; nfs_fattr_init(&hdr->fattr); @@ -851,15 +851,6 @@ static int nfs_pageio_setup_mirroring(struct nfs_pageio_descriptor *pgio, return 0; } -/* - * nfs_pageio_stop_mirroring - stop using mirroring (set mirror count to 1) - */ -void nfs_pageio_stop_mirroring(struct nfs_pageio_descriptor *pgio) -{ - pgio->pg_mirror_count = 1; - pgio->pg_mirror_idx = 0; -} - static void nfs_pageio_cleanup_mirroring(struct nfs_pageio_descriptor *pgio) { pgio->pg_mirror_count = 1; @@ -1285,6 +1276,14 @@ void nfs_pageio_cond_complete(struct nfs_pageio_descriptor *desc, pgoff_t index) } } +/* + * nfs_pageio_stop_mirroring - stop using mirroring (set mirror count to 1) + */ +void nfs_pageio_stop_mirroring(struct nfs_pageio_descriptor *pgio) +{ + nfs_pageio_complete(pgio); +} + int __init nfs_init_nfspagecache(void) { nfs_page_cachep = kmem_cache_create("nfs_page", diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 0e008db16b16..c3abf92adfb7 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -1436,7 +1436,7 @@ pnfs_lseg_range_match(const struct pnfs_layout_range *ls_range, if ((range->iomode == IOMODE_RW && ls_range->iomode != IOMODE_RW) || (range->iomode != ls_range->iomode && - strict_iomode == true) || + strict_iomode) || !pnfs_lseg_range_intersecting(ls_range, range)) return 0; diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c index b7bca8303989..06e72229be12 100644 --- a/fs/nfs/proc.c +++ b/fs/nfs/proc.c @@ -588,7 +588,8 @@ static int nfs_read_done(struct rpc_task *task, struct nfs_pgio_header *hdr) /* Emulate the eof flag, which isn't normally needed in NFSv2 * as it is guaranteed to always return the file attributes */ - if (hdr->args.offset + hdr->res.count >= hdr->res.fattr->size) + if ((hdr->res.count == 0 && hdr->args.count > 0) || + hdr->args.offset + hdr->res.count >= hdr->res.fattr->size) hdr->res.eof = 1; } return 0; @@ -609,8 +610,10 @@ static int nfs_proc_pgio_rpc_prepare(struct rpc_task *task, static int nfs_write_done(struct rpc_task *task, struct nfs_pgio_header *hdr) { - if (task->tk_status >= 0) + if (task->tk_status >= 0) { + hdr->res.count = hdr->args.count; nfs_writeback_update_inode(hdr); + } return 0; } diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 659ad12e33ba..4c21e572f2d9 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -1928,7 +1928,7 @@ static int nfs_parse_devname(const char *dev_name, /* kill possible hostname list: not supported */ comma = strchr(dev_name, ','); if (comma != NULL && comma < end) - *comma = 0; + len = comma - dev_name; } if (len > maxnamlen) @@ -2047,7 +2047,8 @@ static int nfs23_validate_mount_data(void *options, memcpy(sap, &data->addr, sizeof(data->addr)); args->nfs_server.addrlen = sizeof(data->addr); args->nfs_server.port = ntohs(data->addr.sin_port); - if (!nfs_verify_server_address(sap)) + if (sap->sa_family != AF_INET || + !nfs_verify_server_address(sap)) goto out_no_address; if (!(data->flags & NFS_MOUNT_TCP)) |