diff options
Diffstat (limited to 'fs/nfs')
-rw-r--r-- | fs/nfs/blocklayout/blocklayoutdm.c | 4 | ||||
-rw-r--r-- | fs/nfs/cache_lib.c | 12 | ||||
-rw-r--r-- | fs/nfs/cache_lib.h | 2 | ||||
-rw-r--r-- | fs/nfs/client.c | 1 | ||||
-rw-r--r-- | fs/nfs/dir.c | 48 | ||||
-rw-r--r-- | fs/nfs/dns_resolve.c | 67 | ||||
-rw-r--r-- | fs/nfs/file.c | 2 | ||||
-rw-r--r-- | fs/nfs/idmap.c | 68 | ||||
-rw-r--r-- | fs/nfs/inode.c | 18 | ||||
-rw-r--r-- | fs/nfs/nfs2xdr.c | 19 | ||||
-rw-r--r-- | fs/nfs/nfs3proc.c | 2 | ||||
-rw-r--r-- | fs/nfs/nfs3xdr.c | 18 | ||||
-rw-r--r-- | fs/nfs/nfs4client.c | 14 | ||||
-rw-r--r-- | fs/nfs/nfs4file.c | 2 | ||||
-rw-r--r-- | fs/nfs/nfs4filelayout.c | 7 | ||||
-rw-r--r-- | fs/nfs/nfs4filelayout.h | 2 | ||||
-rw-r--r-- | fs/nfs/nfs4filelayoutdev.c | 1 | ||||
-rw-r--r-- | fs/nfs/nfs4namespace.c | 1 | ||||
-rw-r--r-- | fs/nfs/nfs4proc.c | 37 | ||||
-rw-r--r-- | fs/nfs/nfs4super.c | 6 | ||||
-rw-r--r-- | fs/nfs/nfs4xdr.c | 16 | ||||
-rw-r--r-- | fs/nfs/pnfs.c | 102 | ||||
-rw-r--r-- | fs/nfs/pnfs.h | 12 | ||||
-rw-r--r-- | fs/nfs/pnfs_dev.c | 9 | ||||
-rw-r--r-- | fs/nfs/proc.c | 2 | ||||
-rw-r--r-- | fs/nfs/super.c | 11 | ||||
-rw-r--r-- | fs/nfs/unlink.c | 20 |
27 files changed, 327 insertions, 176 deletions
diff --git a/fs/nfs/blocklayout/blocklayoutdm.c b/fs/nfs/blocklayout/blocklayoutdm.c index 737d839..6fc7b5c 100644 --- a/fs/nfs/blocklayout/blocklayoutdm.c +++ b/fs/nfs/blocklayout/blocklayoutdm.c @@ -55,7 +55,8 @@ static void dev_remove(struct net *net, dev_t dev) bl_pipe_msg.bl_wq = &nn->bl_wq; memset(msg, 0, sizeof(*msg)); - msg->data = kzalloc(1 + sizeof(bl_umount_request), GFP_NOFS); + msg->len = sizeof(bl_msg) + bl_msg.totallen; + msg->data = kzalloc(msg->len, GFP_NOFS); if (!msg->data) goto out; @@ -66,7 +67,6 @@ static void dev_remove(struct net *net, dev_t dev) memcpy(msg->data, &bl_msg, sizeof(bl_msg)); dataptr = (uint8_t *) msg->data; memcpy(&dataptr[sizeof(bl_msg)], &bl_umount_request, sizeof(bl_umount_request)); - msg->len = sizeof(bl_msg) + bl_msg.totallen; add_wait_queue(&nn->bl_wq, &wq); if (rpc_queue_upcall(nn->bl_device_pipe, msg) < 0) { diff --git a/fs/nfs/cache_lib.c b/fs/nfs/cache_lib.c index 862a2f1..5f7b053 100644 --- a/fs/nfs/cache_lib.c +++ b/fs/nfs/cache_lib.c @@ -128,10 +128,13 @@ int nfs_cache_register_net(struct net *net, struct cache_detail *cd) struct super_block *pipefs_sb; int ret = 0; + sunrpc_init_cache_detail(cd); pipefs_sb = rpc_get_sb_net(net); if (pipefs_sb) { ret = nfs_cache_register_sb(pipefs_sb, cd); rpc_put_sb_net(net); + if (ret) + sunrpc_destroy_cache_detail(cd); } return ret; } @@ -151,14 +154,5 @@ void nfs_cache_unregister_net(struct net *net, struct cache_detail *cd) nfs_cache_unregister_sb(pipefs_sb, cd); rpc_put_sb_net(net); } -} - -void nfs_cache_init(struct cache_detail *cd) -{ - sunrpc_init_cache_detail(cd); -} - -void nfs_cache_destroy(struct cache_detail *cd) -{ sunrpc_destroy_cache_detail(cd); } diff --git a/fs/nfs/cache_lib.h b/fs/nfs/cache_lib.h index 317db95..4116d2c 100644 --- a/fs/nfs/cache_lib.h +++ b/fs/nfs/cache_lib.h @@ -23,8 +23,6 @@ extern struct nfs_cache_defer_req *nfs_cache_defer_req_alloc(void); extern void nfs_cache_defer_req_put(struct nfs_cache_defer_req *dreq); extern int nfs_cache_wait_for_upcall(struct nfs_cache_defer_req *dreq); -extern void nfs_cache_init(struct cache_detail *cd); -extern void nfs_cache_destroy(struct cache_detail *cd); extern int nfs_cache_register_net(struct net *net, struct cache_detail *cd); extern void nfs_cache_unregister_net(struct net *net, struct cache_detail *cd); extern int nfs_cache_register_sb(struct super_block *sb, diff --git a/fs/nfs/client.c b/fs/nfs/client.c index 9f3c664..84d8eae 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -197,7 +197,6 @@ error_0: EXPORT_SYMBOL_GPL(nfs_alloc_client); #if IS_ENABLED(CONFIG_NFS_V4) -/* idr_remove_all is not needed as all id's are removed by nfs_put_client */ void nfs_cleanup_cb_ident_idr(struct net *net) { struct nfs_net *nn = net_generic(net, nfs_net_id); diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 1b2d7eb..f23f455 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -281,7 +281,7 @@ int nfs_readdir_search_for_cookie(struct nfs_cache_array *array, nfs_readdir_des for (i = 0; i < array->size; i++) { if (array->array[i].cookie == *desc->dir_cookie) { - struct nfs_inode *nfsi = NFS_I(desc->file->f_path.dentry->d_inode); + struct nfs_inode *nfsi = NFS_I(file_inode(desc->file)); struct nfs_open_dir_context *ctx = desc->file->private_data; new_pos = desc->current_index + i; @@ -629,7 +629,7 @@ out: static int nfs_readdir_filler(nfs_readdir_descriptor_t *desc, struct page* page) { - struct inode *inode = desc->file->f_path.dentry->d_inode; + struct inode *inode = file_inode(desc->file); int ret; ret = nfs_readdir_xdr_to_array(desc, page, inode); @@ -660,7 +660,7 @@ void cache_page_release(nfs_readdir_descriptor_t *desc) static struct page *get_cache_page(nfs_readdir_descriptor_t *desc) { - return read_cache_page(desc->file->f_path.dentry->d_inode->i_mapping, + return read_cache_page(file_inode(desc->file)->i_mapping, desc->page_index, (filler_t *)nfs_readdir_filler, desc); } @@ -764,7 +764,7 @@ int uncached_readdir(nfs_readdir_descriptor_t *desc, void *dirent, { struct page *page = NULL; int status; - struct inode *inode = desc->file->f_path.dentry->d_inode; + struct inode *inode = file_inode(desc->file); struct nfs_open_dir_context *ctx = desc->file->private_data; dfprintk(DIRCACHE, "NFS: uncached_readdir() searching for cookie %Lu\n", @@ -1136,6 +1136,45 @@ out_error: } /* + * A weaker form of d_revalidate for revalidating just the dentry->d_inode + * when we don't really care about the dentry name. This is called when a + * pathwalk ends on a dentry that was not found via a normal lookup in the + * parent dir (e.g.: ".", "..", procfs symlinks or mountpoint traversals). + * + * In this situation, we just want to verify that the inode itself is OK + * since the dentry might have changed on the server. + */ +static int nfs_weak_revalidate(struct dentry *dentry, unsigned int flags) +{ + int error; + struct inode *inode = dentry->d_inode; + + /* + * I believe we can only get a negative dentry here in the case of a + * procfs-style symlink. Just assume it's correct for now, but we may + * eventually need to do something more here. + */ + if (!inode) { + dfprintk(LOOKUPCACHE, "%s: %s/%s has negative inode\n", + __func__, dentry->d_parent->d_name.name, + dentry->d_name.name); + return 1; + } + + if (is_bad_inode(inode)) { + dfprintk(LOOKUPCACHE, "%s: %s/%s has dud inode\n", + __func__, dentry->d_parent->d_name.name, + dentry->d_name.name); + return 0; + } + + error = nfs_revalidate_inode(NFS_SERVER(inode), inode); + dfprintk(LOOKUPCACHE, "NFS: %s: inode %lu is %s\n", + __func__, inode->i_ino, error ? "invalid" : "valid"); + return !error; +} + +/* * This is called from dput() when d_count is going to 0. */ static int nfs_dentry_delete(const struct dentry *dentry) @@ -1202,6 +1241,7 @@ static void nfs_d_release(struct dentry *dentry) const struct dentry_operations nfs_dentry_operations = { .d_revalidate = nfs_lookup_revalidate, + .d_weak_revalidate = nfs_weak_revalidate, .d_delete = nfs_dentry_delete, .d_iput = nfs_dentry_iput, .d_automount = nfs_d_automount, diff --git a/fs/nfs/dns_resolve.c b/fs/nfs/dns_resolve.c index ca4b11e..9455270 100644 --- a/fs/nfs/dns_resolve.c +++ b/fs/nfs/dns_resolve.c @@ -10,6 +10,7 @@ #include <linux/module.h> #include <linux/sunrpc/clnt.h> +#include <linux/sunrpc/addr.h> #include <linux/dns_resolver.h> #include "dns_resolve.h" @@ -42,6 +43,7 @@ EXPORT_SYMBOL_GPL(nfs_dns_resolve_name); #include <linux/seq_file.h> #include <linux/inet.h> #include <linux/sunrpc/clnt.h> +#include <linux/sunrpc/addr.h> #include <linux/sunrpc/cache.h> #include <linux/sunrpc/svcauth.h> #include <linux/sunrpc/rpc_pipe_fs.h> @@ -142,7 +144,7 @@ static int nfs_dns_upcall(struct cache_detail *cd, ret = nfs_cache_upcall(cd, key->hostname); if (ret) - ret = sunrpc_cache_pipe_upcall(cd, ch, nfs_dns_request); + ret = sunrpc_cache_pipe_upcall(cd, ch); return ret; } @@ -351,60 +353,47 @@ ssize_t nfs_dns_resolve_name(struct net *net, char *name, } EXPORT_SYMBOL_GPL(nfs_dns_resolve_name); +static struct cache_detail nfs_dns_resolve_template = { + .owner = THIS_MODULE, + .hash_size = NFS_DNS_HASHTBL_SIZE, + .name = "dns_resolve", + .cache_put = nfs_dns_ent_put, + .cache_upcall = nfs_dns_upcall, + .cache_request = nfs_dns_request, + .cache_parse = nfs_dns_parse, + .cache_show = nfs_dns_show, + .match = nfs_dns_match, + .init = nfs_dns_ent_init, + .update = nfs_dns_ent_update, + .alloc = nfs_dns_ent_alloc, +}; + + int nfs_dns_resolver_cache_init(struct net *net) { - int err = -ENOMEM; + int err; struct nfs_net *nn = net_generic(net, nfs_net_id); - struct cache_detail *cd; - struct cache_head **tbl; - cd = kzalloc(sizeof(struct cache_detail), GFP_KERNEL); - if (cd == NULL) - goto err_cd; - - tbl = kzalloc(NFS_DNS_HASHTBL_SIZE * sizeof(struct cache_head *), - GFP_KERNEL); - if (tbl == NULL) - goto err_tbl; - - cd->owner = THIS_MODULE, - cd->hash_size = NFS_DNS_HASHTBL_SIZE, - cd->hash_table = tbl, - cd->name = "dns_resolve", - cd->cache_put = nfs_dns_ent_put, - cd->cache_upcall = nfs_dns_upcall, - cd->cache_parse = nfs_dns_parse, - cd->cache_show = nfs_dns_show, - cd->match = nfs_dns_match, - cd->init = nfs_dns_ent_init, - cd->update = nfs_dns_ent_update, - cd->alloc = nfs_dns_ent_alloc, - - nfs_cache_init(cd); - err = nfs_cache_register_net(net, cd); + nn->nfs_dns_resolve = cache_create_net(&nfs_dns_resolve_template, net); + if (IS_ERR(nn->nfs_dns_resolve)) + return PTR_ERR(nn->nfs_dns_resolve); + + err = nfs_cache_register_net(net, nn->nfs_dns_resolve); if (err) goto err_reg; - nn->nfs_dns_resolve = cd; return 0; err_reg: - nfs_cache_destroy(cd); - kfree(cd->hash_table); -err_tbl: - kfree(cd); -err_cd: + cache_destroy_net(nn->nfs_dns_resolve, net); return err; } void nfs_dns_resolver_cache_destroy(struct net *net) { struct nfs_net *nn = net_generic(net, nfs_net_id); - struct cache_detail *cd = nn->nfs_dns_resolve; - nfs_cache_unregister_net(net, cd); - nfs_cache_destroy(cd); - kfree(cd->hash_table); - kfree(cd); + nfs_cache_unregister_net(net, nn->nfs_dns_resolve); + cache_destroy_net(nn->nfs_dns_resolve, net); } static int rpc_pipefs_event(struct notifier_block *nb, unsigned long event, diff --git a/fs/nfs/file.c b/fs/nfs/file.c index 3c2b893..29f4a48 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -292,7 +292,7 @@ static int nfs_file_fsync(struct file *file, loff_t start, loff_t end, int datasync) { int ret; - struct inode *inode = file->f_path.dentry->d_inode; + struct inode *inode = file_inode(file); do { ret = filemap_write_and_wait_range(inode->i_mapping, start, end); diff --git a/fs/nfs/idmap.c b/fs/nfs/idmap.c index bc3968fa..c516da5 100644 --- a/fs/nfs/idmap.c +++ b/fs/nfs/idmap.c @@ -97,7 +97,7 @@ static void nfs_fattr_free_group_name(struct nfs_fattr *fattr) static bool nfs_fattr_map_owner_name(struct nfs_server *server, struct nfs_fattr *fattr) { struct nfs4_string *owner = fattr->owner_name; - __u32 uid; + kuid_t uid; if (!(fattr->valid & NFS_ATTR_FATTR_OWNER_NAME)) return false; @@ -111,7 +111,7 @@ static bool nfs_fattr_map_owner_name(struct nfs_server *server, struct nfs_fattr static bool nfs_fattr_map_group_name(struct nfs_server *server, struct nfs_fattr *fattr) { struct nfs4_string *group = fattr->group_name; - __u32 gid; + kgid_t gid; if (!(fattr->valid & NFS_ATTR_FATTR_GROUP_NAME)) return false; @@ -193,7 +193,8 @@ static int nfs_idmap_init_keyring(void) if (!cred) return -ENOMEM; - keyring = keyring_alloc(".id_resolver", 0, 0, cred, + keyring = keyring_alloc(".id_resolver", + GLOBAL_ROOT_UID, GLOBAL_ROOT_GID, cred, (KEY_POS_ALL & ~KEY_POS_SETATTR) | KEY_USR_VIEW | KEY_USR_READ, KEY_ALLOC_NOT_IN_QUOTA, NULL); @@ -725,9 +726,9 @@ out1: return ret; } -static int nfs_idmap_instantiate(struct key *key, struct key *authkey, char *data) +static int nfs_idmap_instantiate(struct key *key, struct key *authkey, char *data, size_t datalen) { - return key_instantiate_and_link(key, data, strlen(data) + 1, + return key_instantiate_and_link(key, data, datalen, id_resolver_cache->thread_keyring, authkey); } @@ -737,6 +738,7 @@ static int nfs_idmap_read_and_verify_message(struct idmap_msg *im, struct key *key, struct key *authkey) { char id_str[NFS_UINT_MAXLEN]; + size_t len; int ret = -ENOKEY; /* ret = -ENOKEY */ @@ -746,13 +748,15 @@ static int nfs_idmap_read_and_verify_message(struct idmap_msg *im, case IDMAP_CONV_NAMETOID: if (strcmp(upcall->im_name, im->im_name) != 0) break; - sprintf(id_str, "%d", im->im_id); - ret = nfs_idmap_instantiate(key, authkey, id_str); + /* Note: here we store the NUL terminator too */ + len = sprintf(id_str, "%d", im->im_id) + 1; + ret = nfs_idmap_instantiate(key, authkey, id_str, len); break; case IDMAP_CONV_IDTONAME: if (upcall->im_id != im->im_id) break; - ret = nfs_idmap_instantiate(key, authkey, im->im_name); + len = strlen(im->im_name); + ret = nfs_idmap_instantiate(key, authkey, im->im_name, len); break; default: ret = -EINVAL; @@ -764,7 +768,7 @@ out: static ssize_t idmap_pipe_downcall(struct file *filp, const char __user *src, size_t mlen) { - struct rpc_inode *rpci = RPC_I(filp->f_path.dentry->d_inode); + struct rpc_inode *rpci = RPC_I(file_inode(filp)); struct idmap *idmap = (struct idmap *)rpci->private; struct key_construction *cons; struct idmap_msg im; @@ -836,43 +840,61 @@ idmap_release_pipe(struct inode *inode) nfs_idmap_abort_pipe_upcall(idmap, -EPIPE); } -int nfs_map_name_to_uid(const struct nfs_server *server, const char *name, size_t namelen, __u32 *uid) +int nfs_map_name_to_uid(const struct nfs_server *server, const char *name, size_t namelen, kuid_t *uid) { struct idmap *idmap = server->nfs_client->cl_idmap; + __u32 id = -1; + int ret = 0; - if (nfs_map_string_to_numeric(name, namelen, uid)) - return 0; - return nfs_idmap_lookup_id(name, namelen, "uid", uid, idmap); + if (!nfs_map_string_to_numeric(name, namelen, &id)) + ret = nfs_idmap_lookup_id(name, namelen, "uid", &id, idmap); + if (ret == 0) { + *uid = make_kuid(&init_user_ns, id); + if (!uid_valid(*uid)) + ret = -ERANGE; + } + return ret; } -int nfs_map_group_to_gid(const struct nfs_server *server, const char *name, size_t namelen, __u32 *gid) +int nfs_map_group_to_gid(const struct nfs_server *server, const char *name, size_t namelen, kgid_t *gid) { struct idmap *idmap = server->nfs_client->cl_idmap; + __u32 id = -1; + int ret = 0; - if (nfs_map_string_to_numeric(name, namelen, gid)) - return 0; - return nfs_idmap_lookup_id(name, namelen, "gid", gid, idmap); + if (!nfs_map_string_to_numeric(name, namelen, &id)) + ret = nfs_idmap_lookup_id(name, namelen, "gid", &id, idmap); + if (ret == 0) { + *gid = make_kgid(&init_user_ns, id); + if (!gid_valid(*gid)) + ret = -ERANGE; + } + return ret; } -int nfs_map_uid_to_name(const struct nfs_server *server, __u32 uid, char *buf, size_t buflen) +int nfs_map_uid_to_name(const struct nfs_server *server, kuid_t uid, char *buf, size_t buflen) { struct idmap *idmap = server->nfs_client->cl_idmap; int ret = -EINVAL; + __u32 id; + id = from_kuid(&init_user_ns, uid); if (!(server->caps & NFS_CAP_UIDGID_NOMAP)) - ret = nfs_idmap_lookup_name(uid, "user", buf, buflen, idmap); + ret = nfs_idmap_lookup_name(id, "user", buf, buflen, idmap); if (ret < 0) - ret = nfs_map_numeric_to_string(uid, buf, buflen); + ret = nfs_map_numeric_to_string(id, buf, buflen); return ret; } -int nfs_map_gid_to_group(const struct nfs_server *server, __u32 gid, char *buf, size_t buflen) +int nfs_map_gid_to_group(const struct nfs_server *server, kgid_t gid, char *buf, size_t buflen) { struct idmap *idmap = server->nfs_client->cl_idmap; int ret = -EINVAL; + __u32 id; + id = from_kgid(&init_user_ns, gid); if (!(server->caps & NFS_CAP_UIDGID_NOMAP)) - ret = nfs_idmap_lookup_name(gid, "group", buf, buflen, idmap); + ret = nfs_idmap_lookup_name(id, "group", buf, buflen, idmap); if (ret < 0) - ret = nfs_map_numeric_to_string(gid, buf, buflen); + ret = nfs_map_numeric_to_string(id, buf, buflen); return ret; } diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 6acc73c..1f94167 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -237,6 +237,8 @@ nfs_find_actor(struct inode *inode, void *opaque) if (NFS_FILEID(inode) != fattr->fileid) return 0; + if ((S_IFMT & inode->i_mode) != (S_IFMT & fattr->mode)) + return 0; if (nfs_compare_fh(NFS_FH(inode), fh)) return 0; if (is_bad_inode(inode) || NFS_STALE(inode)) @@ -332,8 +334,8 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr) inode->i_version = 0; inode->i_size = 0; clear_nlink(inode); - inode->i_uid = -2; - inode->i_gid = -2; + inode->i_uid = make_kuid(&init_user_ns, -2); + inode->i_gid = make_kgid(&init_user_ns, -2); inode->i_blocks = 0; memset(nfsi->cookieverf, 0, sizeof(nfsi->cookieverf)); nfsi->write_io = 0; @@ -711,7 +713,7 @@ EXPORT_SYMBOL_GPL(put_nfs_open_context); */ void nfs_file_set_open_context(struct file *filp, struct nfs_open_context *ctx) { - struct inode *inode = filp->f_path.dentry->d_inode; + struct inode *inode = file_inode(filp); struct nfs_inode *nfsi = NFS_I(inode); filp->private_data = get_nfs_open_context(ctx); @@ -744,7 +746,7 @@ struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_c static void nfs_file_clear_open_context(struct file *filp) { - struct inode *inode = filp->f_path.dentry->d_inode; + struct inode *inode = file_inode(filp); struct nfs_open_context *ctx = nfs_file_open_context(filp); if (ctx) { @@ -1006,9 +1008,9 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat /* Have any file permissions changed? */ if ((fattr->valid & NFS_ATTR_FATTR_MODE) && (inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO)) invalid |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL; - if ((fattr->valid & NFS_ATTR_FATTR_OWNER) && inode->i_uid != fattr->uid) + if ((fattr->valid & NFS_ATTR_FATTR_OWNER) && !uid_eq(inode->i_uid, fattr->uid)) invalid |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL; - if ((fattr->valid & NFS_ATTR_FATTR_GROUP) && inode->i_gid != fattr->gid) + if ((fattr->valid & NFS_ATTR_FATTR_GROUP) && !gid_eq(inode->i_gid, fattr->gid)) invalid |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL; /* Has the link count changed? */ @@ -1437,7 +1439,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) | NFS_INO_REVAL_FORCED); if (fattr->valid & NFS_ATTR_FATTR_OWNER) { - if (inode->i_uid != fattr->uid) { + if (!uid_eq(inode->i_uid, fattr->uid)) { invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; inode->i_uid = fattr->uid; } @@ -1448,7 +1450,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) | NFS_INO_REVAL_FORCED); if (fattr->valid & NFS_ATTR_FATTR_GROUP) { - if (inode->i_gid != fattr->gid) { + if (!gid_eq(inode->i_gid, fattr->gid)) { invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; inode->i_gid = fattr->gid; } diff --git a/fs/nfs/nfs2xdr.c b/fs/nfs/nfs2xdr.c index 06b9df4..62db136 100644 --- a/fs/nfs/nfs2xdr.c +++ b/fs/nfs/nfs2xdr.c @@ -290,8 +290,13 @@ static int decode_fattr(struct xdr_stream *xdr, struct nfs_fattr *fattr) fattr->mode = be32_to_cpup(p++); fattr->nlink = be32_to_cpup(p++); - fattr->uid = be32_to_cpup(p++); - fattr->gid = be32_to_cpup(p++); + fattr->uid = make_kuid(&init_user_ns, be32_to_cpup(p++)); + if (!uid_valid(fattr->uid)) + goto out_uid; + fattr->gid = make_kgid(&init_user_ns, be32_to_cpup(p++)); + if (!gid_valid(fattr->gid)) + goto out_gid; + fattr->size = be32_to_cpup(p++); fattr->du.nfs2.blocksize = be32_to_cpup(p++); @@ -313,6 +318,12 @@ static int decode_fattr(struct xdr_stream *xdr, struct nfs_fattr *fattr) fattr->change_attr = nfs_timespec_to_change_attr(&fattr->ctime); return 0; +out_uid: + dprintk("NFS: returned invalid uid\n"); + return -EINVAL; +out_gid: + dprintk("NFS: returned invalid gid\n"); + return -EINVAL; out_overflow: print_overflow_msg(__func__, xdr); return -EIO; @@ -351,11 +362,11 @@ static void encode_sattr(struct xdr_stream *xdr, const struct iattr *attr) else *p++ = cpu_to_be32(NFS2_SATTR_NOT_SET); if (attr->ia_valid & ATTR_UID) - *p++ = cpu_to_be32(attr->ia_uid); + *p++ = cpu_to_be32(from_kuid(&init_user_ns, attr->ia_uid)); else *p++ = cpu_to_be32(NFS2_SATTR_NOT_SET); if (attr->ia_valid & ATTR_GID) - *p++ = cpu_to_be32(attr->ia_gid); + *p++ = cpu_to_be32(from_kgid(&init_user_ns, attr->ia_gid)); else *p++ = cpu_to_be32(NFS2_SATTR_NOT_SET); if (attr->ia_valid & ATTR_SIZE) diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c index 70efb63..43ea96c 100644 --- a/fs/nfs/nfs3proc.c +++ b/fs/nfs/nfs3proc.c @@ -872,7 +872,7 @@ static void nfs3_proc_commit_setup(struct nfs_commit_data *data, struct rpc_mess static int nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl) { - struct inode *inode = filp->f_path.dentry->d_inode; + struct inode *inode = file_inode(filp); return nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl); } diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c index bffc324..fa6d721 100644 --- a/fs/nfs/nfs3xdr.c +++ b/fs/nfs/nfs3xdr.c @@ -592,13 +592,13 @@ static void encode_sattr3(struct xdr_stream *xdr, const struct iattr *attr) if (attr->ia_valid & ATTR_UID) { *p++ = xdr_one; - *p++ = cpu_to_be32(attr->ia_uid); + *p++ = cpu_to_be32(from_kuid(&init_user_ns, attr->ia_uid)); } else *p++ = xdr_zero; if (attr->ia_valid & ATTR_GID) { *p++ = xdr_one; - *p++ = cpu_to_be32(attr->ia_gid); + *p++ = cpu_to_be32(from_kgid(&init_user_ns, attr->ia_gid)); } else *p++ = xdr_zero; @@ -657,8 +657,12 @@ static int decode_fattr3(struct xdr_stream *xdr, struct nfs_fattr *fattr) fattr->mode = (be32_to_cpup(p++) & ~S_IFMT) | fmode; fattr->nlink = be32_to_cpup(p++); - fattr->uid = be32_to_cpup(p++); - fattr->gid = be32_to_cpup(p++); + fattr->uid = make_kuid(&init_user_ns, be32_to_cpup(p++)); + if (!uid_valid(fattr->uid)) + goto out_uid; + fattr->gid = make_kgid(&init_user_ns, be32_to_cpup(p++)); + if (!gid_valid(fattr->gid)) + goto out_gid; p = xdr_decode_size3(p, &fattr->size); p = xdr_decode_size3(p, &fattr->du.nfs3.used); @@ -675,6 +679,12 @@ static int decode_fattr3(struct xdr_stream *xdr, struct nfs_fattr *fattr) fattr->valid |= NFS_ATTR_FATTR_V3; return 0; +out_uid: + dprintk("NFS: returned invalid uid\n"); + return -EINVAL; +out_gid: + dprintk("NFS: returned invalid gid\n"); + return -EINVAL; out_overflow: print_overflow_msg(__func__, xdr); return -EIO; diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c index 2e9779b..ac4fc9a 100644 --- a/fs/nfs/nfs4client.c +++ b/fs/nfs/nfs4client.c @@ -6,6 +6,7 @@ #include <linux/nfs_fs.h> #include <linux/nfs_idmap.h> #include <linux/nfs_mount.h> +#include <linux/sunrpc/addr.h> #include <linux/sunrpc/auth.h> #include <linux/sunrpc/xprt.h> #include <linux/sunrpc/bc_xprt.h> @@ -29,15 +30,14 @@ static int nfs_get_cb_ident_idr(struct nfs_client *clp, int minorversion) if (clp->rpc_ops->version != 4 || minorversion != 0) return ret; -retry: - if (!idr_pre_get(&nn->cb_ident_idr, GFP_KERNEL)) - return -ENOMEM; + idr_preload(GFP_KERNEL); spin_lock(&nn->nfs_client_lock); - ret = idr_get_new(&nn->cb_ident_idr, clp, &clp->cl_cb_ident); + ret = idr_alloc(&nn->cb_ident_idr, clp, 0, 0, GFP_NOWAIT); + if (ret >= 0) + clp->cl_cb_ident = ret; spin_unlock(&nn->nfs_client_lock); - if (ret == -EAGAIN) - goto retry; - return ret; + idr_preload_end(); + return ret < 0 ? ret : 0; } #ifdef CONFIG_NFS_V4_1 diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c index 08ddccc..13e6bb3 100644 --- a/fs/nfs/nfs4file.c +++ b/fs/nfs/nfs4file.c @@ -94,7 +94,7 @@ static int nfs4_file_fsync(struct file *file, loff_t start, loff_t end, int datasync) { int ret; - struct inode *inode = file->f_path.dentry->d_inode; + struct inode *inode = file_inode(file); do { ret = filemap_write_and_wait_range(inode->i_mapping, start, end); diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c index 194c484..4fb234d 100644 --- a/fs/nfs/nfs4filelayout.c +++ b/fs/nfs/nfs4filelayout.c @@ -99,7 +99,8 @@ static void filelayout_reset_write(struct nfs_write_data *data) task->tk_status = pnfs_write_done_resend_to_mds(hdr->inode, &hdr->pages, - hdr->completion_ops); + hdr->completion_ops, + hdr->dreq); } } @@ -119,7 +120,8 @@ static void filelayout_reset_read(struct nfs_read_data *data) task->tk_status = pnfs_read_done_resend_to_mds(hdr->inode, &hdr->pages, - hdr->completion_ops); + hdr->completion_ops, + hdr->dreq); } } @@ -127,7 +129,6 @@ static void filelayout_fenceme(struct inode *inode, struct pnfs_layout_hdr *lo) { if (!test_and_clear_bit(NFS_LAYOUT_RETURN, &lo->plh_flags)) return; - clear_bit(NFS_INO_LAYOUTCOMMIT, &NFS_I(inode)->flags); pnfs_return_layout(inode); } diff --git a/fs/nfs/nfs4filelayout.h b/fs/nfs/nfs4filelayout.h index 8c07241..b8da955 100644 --- a/fs/nfs/nfs4filelayout.h +++ b/fs/nfs/nfs4filelayout.h @@ -36,7 +36,7 @@ * Default data server connection timeout and retrans vaules. * Set by module paramters dataserver_timeo and dataserver_retrans. */ -#define NFS4_DEF_DS_TIMEO 60 +#define NFS4_DEF_DS_TIMEO 600 /* in tenths of a second */ #define NFS4_DEF_DS_RETRANS 5 /* diff --git a/fs/nfs/nfs4filelayoutdev.c b/fs/nfs/nfs4filelayoutdev.c index b720064..1fe284f 100644 --- a/fs/nfs/nfs4filelayoutdev.c +++ b/fs/nfs/nfs4filelayoutdev.c @@ -31,6 +31,7 @@ #include <linux/nfs_fs.h> #include <linux/vmalloc.h> #include <linux/module.h> +#include <linux/sunrpc/addr.h> #include "internal.h" #include "nfs4session.h" diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c index 1e09eb7..0dd7660 100644 --- a/fs/nfs/nfs4namespace.c +++ b/fs/nfs/nfs4namespace.c @@ -14,6 +14,7 @@ #include <linux/slab.h> #include <linux/string.h> #include <linux/sunrpc/clnt.h> +#include <linux/sunrpc/addr.h> #include <linux/vfs.h> #include <linux/inet.h> #include "internal.h" diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index eae83bf..26431cf 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -93,6 +93,8 @@ static int nfs4_map_errors(int err) return err; switch (err) { case -NFS4ERR_RESOURCE: + case -NFS4ERR_LAYOUTTRYLATER: + case -NFS4ERR_RECALLCONFLICT: return -EREMOTEIO; case -NFS4ERR_WRONGSEC: return -EPERM; @@ -1158,6 +1160,7 @@ _nfs4_opendata_to_nfs4_state(struct nfs4_opendata *data) data->o_arg.fmode); iput(inode); out: + nfs_release_seqid(data->o_arg.seqid); return state; err_put_inode: iput(inode); @@ -2629,7 +2632,7 @@ nfs4_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr, int status; if (pnfs_ld_layoutret_on_setattr(inode)) - pnfs_return_layout(inode); + pnfs_commit_and_return_layout(inode); nfs_fattr_init(fattr); @@ -6045,6 +6048,7 @@ static void nfs4_layoutget_done(struct rpc_task *task, void *calldata) struct nfs_server *server = NFS_SERVER(inode); struct pnfs_layout_hdr *lo; struct nfs4_state *state = NULL; + unsigned long timeo, giveup; dprintk("--> %s\n", __func__); @@ -6056,7 +6060,10 @@ static void nfs4_layoutget_done(struct rpc_task *task, void *calldata) goto out; case -NFS4ERR_LAYOUTTRYLATER: case -NFS4ERR_RECALLCONFLICT: - task->tk_status = -NFS4ERR_DELAY; + timeo = rpc_get_timeout(task->tk_client); + giveup = lgp->args.timestamp + timeo; + if (time_after(giveup, jiffies)) + task->tk_status = -NFS4ERR_DELAY; break; case -NFS4ERR_EXPIRED: case -NFS4ERR_BAD_STATEID: @@ -6129,11 +6136,13 @@ static struct page **nfs4_alloc_pages(size_t size, gfp_t gfp_flags) static void nfs4_layoutget_release(void *calldata) { struct nfs4_layoutget *lgp = calldata; - struct nfs_server *server = NFS_SERVER(lgp->args.inode); + struct inode *inode = lgp->args.inode; + struct nfs_server *server = NFS_SERVER(inode); size_t max_pages = max_response_pages(server); dprintk("--> %s\n", __func__); nfs4_free_pages(lgp->args.layout.pages, max_pages); + pnfs_put_layout_hdr(NFS_I(inode)->layout); put_nfs_open_context(lgp->args.ctx); kfree(calldata); dprintk("<-- %s\n", __func__); @@ -6148,7 +6157,8 @@ static const struct rpc_call_ops nfs4_layoutget_call_ops = { struct pnfs_layout_segment * nfs4_proc_layoutget(struct nfs4_layoutget *lgp, gfp_t gfp_flags) { - struct nfs_server *server = NFS_SERVER(lgp->args.inode); + struct inode *inode = lgp->args.inode; + struct nfs_server *server = NFS_SERVER(inode); size_t max_pages = max_response_pages(server); struct rpc_task *task; struct rpc_message msg = { @@ -6174,10 +6184,15 @@ nfs4_proc_layoutget(struct nfs4_layoutget *lgp, gfp_t gfp_flags) return ERR_PTR(-ENOMEM); } lgp->args.layout.pglen = max_pages * PAGE_SIZE; + lgp->args.timestamp = jiffies; lgp->res.layoutp = &lgp->args.layout; lgp->res.seq_res.sr_slot = NULL; nfs41_init_sequence(&lgp->args.seq_args, &lgp->res.seq_res, 0); + + /* nfs4_layoutget_release calls pnfs_put_layout_hdr */ + pnfs_get_layout_hdr(NFS_I(inode)->layout); + task = rpc_run_task(&task_setup_data); if (IS_ERR(task)) return ERR_CAST(task); @@ -6401,22 +6416,8 @@ nfs4_layoutcommit_done(struct rpc_task *task, void *calldata) static void nfs4_layoutcommit_release(void *calldata) { struct nfs4_layoutcommit_data *data = calldata; - struct pnfs_layout_segment *lseg, *tmp; - unsigned long *bitlock = &NFS_I(data->args.inode)->flags; pnfs_cleanup_layoutcommit(data); - /* Matched by references in pnfs_set_layoutcommit */ - list_for_each_entry_safe(lseg, tmp, &data->lseg_list, pls_lc_list) { - list_del_init(&lseg->pls_lc_list); - if (test_and_clear_bit(NFS_LSEG_LAYOUTCOMMIT, - &lseg->pls_flags)) - pnfs_put_lseg(lseg); - } - - clear_bit_unlock(NFS_INO_LAYOUTCOMMITTING, bitlock); - smp_mb__after_clear_bit(); - wake_up_bit(bitlock, NFS_INO_LAYOUTCOMMITTING); - put_rpccred(data->cred); kfree(data); } diff --git a/fs/nfs/nfs4super.c b/fs/nfs/nfs4super.c index 84d2e9e..569b166 100644 --- a/fs/nfs/nfs4super.c +++ b/fs/nfs/nfs4super.c @@ -28,7 +28,7 @@ static struct file_system_type nfs4_remote_fs_type = { .name = "nfs4", .mount = nfs4_remote_mount, .kill_sb = nfs_kill_super, - .fs_flags = FS_RENAME_DOES_D_MOVE|FS_REVAL_DOT|FS_BINARY_MOUNTDATA, + .fs_flags = FS_RENAME_DOES_D_MOVE|FS_BINARY_MOUNTDATA, }; static struct file_system_type nfs4_remote_referral_fs_type = { @@ -36,7 +36,7 @@ static struct file_system_type nfs4_remote_referral_fs_type = { .name = "nfs4", .mount = nfs4_remote_referral_mount, .kill_sb = nfs_kill_super, - .fs_flags = FS_RENAME_DOES_D_MOVE|FS_REVAL_DOT|FS_BINARY_MOUNTDATA, + .fs_flags = FS_RENAME_DOES_D_MOVE|FS_BINARY_MOUNTDATA, }; struct file_system_type nfs4_referral_fs_type = { @@ -44,7 +44,7 @@ struct file_system_type nfs4_referral_fs_type = { .name = "nfs4", .mount = nfs4_referral_mount, .kill_sb = nfs_kill_super, - .fs_flags = FS_RENAME_DOES_D_MOVE|FS_REVAL_DOT|FS_BINARY_MOUNTDATA, + .fs_flags = FS_RENAME_DOES_D_MOVE|FS_BINARY_MOUNTDATA, }; static const struct super_operations nfs4_sops = { diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 26b1439..e3edda5 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -1002,7 +1002,7 @@ static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ); if (owner_namelen < 0) { dprintk("nfs: couldn't resolve uid %d to string\n", - iap->ia_uid); + from_kuid(&init_user_ns, iap->ia_uid)); /* XXX */ strcpy(owner_name, "nobody"); owner_namelen = sizeof("nobody") - 1; @@ -1014,7 +1014,7 @@ static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ); if (owner_grouplen < 0) { dprintk("nfs: couldn't resolve gid %d to string\n", - iap->ia_gid); + from_kgid(&init_user_ns, iap->ia_gid)); strcpy(owner_group, "nobody"); owner_grouplen = sizeof("nobody") - 1; /* goto out; */ @@ -3778,14 +3778,14 @@ out_overflow: } static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, - const struct nfs_server *server, uint32_t *uid, + const struct nfs_server *server, kuid_t *uid, struct nfs4_string *owner_name) { uint32_t len; __be32 *p; int ret = 0; - *uid = -2; + *uid = make_kuid(&init_user_ns, -2); if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { @@ -3813,7 +3813,7 @@ static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, __func__, len); bitmap[1] &= ~FATTR4_WORD1_OWNER; } - dprintk("%s: uid=%d\n", __func__, (int)*uid); + dprintk("%s: uid=%d\n", __func__, (int)from_kuid(&init_user_ns, *uid)); return ret; out_overflow: print_overflow_msg(__func__, xdr); @@ -3821,14 +3821,14 @@ out_overflow: } static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, - const struct nfs_server *server, uint32_t *gid, + const struct nfs_server *server, kgid_t *gid, struct nfs4_string *group_name) { uint32_t len; __be32 *p; int ret = 0; - *gid = -2; + *gid = make_kgid(&init_user_ns, -2); if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { @@ -3856,7 +3856,7 @@ static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, __func__, len); bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; } - dprintk("%s: gid=%d\n", __func__, (int)*gid); + dprintk("%s: gid=%d\n", __func__, (int)from_kgid(&init_user_ns, *gid)); return ret; out_overflow: print_overflow_msg(__func__, xdr); diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 6be70f6..4bdffe0 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -417,6 +417,16 @@ should_free_lseg(struct pnfs_layout_range *lseg_range, lo_seg_intersecting(lseg_range, recall_range); } +static bool pnfs_lseg_dec_and_remove_zero(struct pnfs_layout_segment *lseg, + struct list_head *tmp_list) +{ + if (!atomic_dec_and_test(&lseg->pls_refcount)) + return false; + pnfs_layout_remove_lseg(lseg->pls_layout, lseg); + list_add(&lseg->pls_list, tmp_list); + return true; +} + /* Returns 1 if lseg is removed from list, 0 otherwise */ static int mark_lseg_invalid(struct pnfs_layout_segment *lseg, struct list_head *tmp_list) @@ -430,11 +440,8 @@ static int mark_lseg_invalid(struct pnfs_layout_segment *lseg, */ dprintk("%s: lseg %p ref %d\n", __func__, lseg, atomic_read(&lseg->pls_refcount)); - if (atomic_dec_and_test(&lseg->pls_refcount)) { - pnfs_layout_remove_lseg(lseg->pls_layout, lseg); - list_add(&lseg->pls_list, tmp_list); + if (pnfs_lseg_dec_and_remove_zero(lseg, tmp_list)) rv = 1; - } } return rv; } @@ -777,6 +784,21 @@ send_layoutget(struct pnfs_layout_hdr *lo, return lseg; } +static void pnfs_clear_layoutcommit(struct inode *inode, + struct list_head *head) +{ + struct nfs_inode *nfsi = NFS_I(inode); + struct pnfs_layout_segment *lseg, *tmp; + + if (!test_and_clear_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags)) + return; + list_for_each_entry_safe(lseg, tmp, &nfsi->layout->plh_segs, pls_list) { + if (!test_and_clear_bit(NFS_LSEG_LAYOUTCOMMIT, &lseg->pls_flags)) + continue; + pnfs_lseg_dec_and_remove_zero(lseg, head); + } +} + /* * Initiates a LAYOUTRETURN(FILE), and removes the pnfs_layout_hdr * when the layout segment list is empty. @@ -808,6 +830,7 @@ _pnfs_return_layout(struct inode *ino) /* Reference matched in nfs4_layoutreturn_release */ pnfs_get_layout_hdr(lo); empty = list_empty(&lo->plh_segs); + pnfs_clear_layoutcommit(ino, &tmp_list); pnfs_mark_matching_lsegs_invalid(lo, &tmp_list, NULL); /* Don't send a LAYOUTRETURN if list was initially empty */ if (empty) { @@ -820,8 +843,6 @@ _pnfs_return_layout(struct inode *ino) spin_unlock(&ino->i_lock); pnfs_free_lseg_list(&tmp_list); - WARN_ON(test_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags)); - lrp = kzalloc(sizeof(*lrp), GFP_KERNEL); if (unlikely(lrp == NULL)) { status = -ENOMEM; @@ -845,6 +866,33 @@ out: } EXPORT_SYMBOL_GPL(_pnfs_return_layout); +int +pnfs_commit_and_return_layout(struct inode *inode) +{ + struct pnfs_layout_hdr *lo; + int ret; + + spin_lock(&inode->i_lock); + lo = NFS_I(inode)->layout; + if (lo == NULL) { + spin_unlock(&inode->i_lock); + return 0; + } + pnfs_get_layout_hdr(lo); + /* Block new layoutgets and read/write to ds */ + lo->plh_block_lgets++; + spin_unlock(&inode->i_lock); + filemap_fdatawait(inode->i_mapping); + ret = pnfs_layoutcommit_inode(inode, true); + if (ret == 0) + ret = _pnfs_return_layout(inode); + spin_lock(&inode->i_lock); + lo->plh_block_lgets--; + spin_unlock(&inode->i_lock); + pnfs_put_layout_hdr(lo); + return ret; +} + bool pnfs_roc(struct inode *ino) { struct pnfs_layout_hdr *lo; @@ -1181,7 +1229,7 @@ pnfs_update_layout(struct inode *ino, struct nfs_client *clp = server->nfs_client; struct pnfs_layout_hdr *lo; struct pnfs_layout_segment *lseg = NULL; - bool first = false; + bool first; if (!pnfs_enabled_sb(NFS_SERVER(ino))) goto out; @@ -1215,10 +1263,9 @@ pnfs_update_layout(struct inode *ino, goto out_unlock; atomic_inc(&lo->plh_outstanding); - if (list_empty(&lo->plh_segs)) - first = true; - + first = list_empty(&lo->plh_layouts) ? true : false; spin_unlock(&ino->i_lock); + if (first) { /* The lo must be on the clp list if there is any * chance of a CB_LAYOUTRECALL(FILE) coming in. @@ -1422,13 +1469,15 @@ EXPORT_SYMBOL_GPL(pnfs_generic_pg_test); int pnfs_write_done_resend_to_mds(struct inode *inode, struct list_head *head, - const struct nfs_pgio_completion_ops *compl_ops) + const struct nfs_pgio_completion_ops *compl_ops, + struct nfs_direct_req *dreq) { struct nfs_pageio_descriptor pgio; LIST_HEAD(failed); /* Resend all requests through the MDS */ nfs_pageio_init_write(&pgio, inode, FLUSH_STABLE, compl_ops); + pgio.pg_dreq = dreq; while (!list_empty(head)) { struct nfs_page *req = nfs_list_entry(head->next); @@ -1457,13 +1506,13 @@ static void pnfs_ld_handle_write_error(struct nfs_write_data *data) dprintk("pnfs write error = %d\n", hdr->pnfs_error); if (NFS_SERVER(hdr->inode)->pnfs_curr_ld->flags & PNFS_LAYOUTRET_ON_ERROR) { - clear_bit(NFS_INO_LAYOUTCOMMIT, &NFS_I(hdr->inode)->flags); pnfs_return_layout(hdr->inode); } if (!test_and_set_bit(NFS_IOHDR_REDO, &hdr->flags)) data->task.tk_status = pnfs_write_done_resend_to_mds(hdr->inode, &hdr->pages, - hdr->completion_ops); + hdr->completion_ops, + hdr->dreq); } /* @@ -1578,13 +1627,15 @@ EXPORT_SYMBOL_GPL(pnfs_generic_pg_writepages); int pnfs_read_done_resend_to_mds(struct inode *inode, struct list_head *head, - const struct nfs_pgio_completion_ops *compl_ops) + const struct nfs_pgio_completion_ops *compl_ops, + struct nfs_direct_req *dreq) { struct nfs_pageio_descriptor pgio; LIST_HEAD(failed); /* Resend all requests through the MDS */ nfs_pageio_init_read(&pgio, inode, compl_ops); + pgio.pg_dreq = dreq; while (!list_empty(head)) { struct nfs_page *req = nfs_list_entry(head->next); @@ -1609,13 +1660,13 @@ static void pnfs_ld_handle_read_error(struct nfs_read_data *data) dprintk("pnfs read error = %d\n", hdr->pnfs_error); if (NFS_SERVER(hdr->inode)->pnfs_curr_ld->flags & PNFS_LAYOUTRET_ON_ERROR) { - clear_bit(NFS_INO_LAYOUTCOMMIT, &NFS_I(hdr->inode)->flags); pnfs_return_layout(hdr->inode); } if (!test_and_set_bit(NFS_IOHDR_REDO, &hdr->flags)) data->task.tk_status = pnfs_read_done_resend_to_mds(hdr->inode, &hdr->pages, - hdr->completion_ops); + hdr->completion_ops, + hdr->dreq); } /* @@ -1741,11 +1792,27 @@ static void pnfs_list_write_lseg(struct inode *inode, struct list_head *listp) list_for_each_entry(lseg, &NFS_I(inode)->layout->plh_segs, pls_list) { if (lseg->pls_range.iomode == IOMODE_RW && - test_bit(NFS_LSEG_LAYOUTCOMMIT, &lseg->pls_flags)) + test_and_clear_bit(NFS_LSEG_LAYOUTCOMMIT, &lseg->pls_flags)) list_add(&lseg->pls_lc_list, listp); } } +static void pnfs_list_write_lseg_done(struct inode *inode, struct list_head *listp) +{ + struct pnfs_layout_segment *lseg, *tmp; + unsigned long *bitlock = &NFS_I(inode)->flags; + + /* Matched by references in pnfs_set_layoutcommit */ + list_for_each_entry_safe(lseg, tmp, listp, pls_lc_list) { + list_del_init(&lseg->pls_lc_list); + pnfs_put_lseg(lseg); + } + + clear_bit_unlock(NFS_INO_LAYOUTCOMMITTING, bitlock); + smp_mb__after_clear_bit(); + wake_up_bit(bitlock, NFS_INO_LAYOUTCOMMITTING); +} + void pnfs_set_lo_fail(struct pnfs_layout_segment *lseg) { pnfs_layout_io_set_failed(lseg->pls_layout, lseg->pls_range.iomode); @@ -1790,6 +1857,7 @@ void pnfs_cleanup_layoutcommit(struct nfs4_layoutcommit_data *data) if (nfss->pnfs_curr_ld->cleanup_layoutcommit) nfss->pnfs_curr_ld->cleanup_layoutcommit(data); + pnfs_list_write_lseg_done(data->args.inode, &data->lseg_list); } /* diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index 97cb358..f5f8a47 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -219,6 +219,7 @@ void pnfs_set_layoutcommit(struct nfs_write_data *wdata); void pnfs_cleanup_layoutcommit(struct nfs4_layoutcommit_data *data); int pnfs_layoutcommit_inode(struct inode *inode, bool sync); int _pnfs_return_layout(struct inode *); +int pnfs_commit_and_return_layout(struct inode *); void pnfs_ld_write_done(struct nfs_write_data *); void pnfs_ld_read_done(struct nfs_read_data *); struct pnfs_layout_segment *pnfs_update_layout(struct inode *ino, @@ -230,9 +231,11 @@ struct pnfs_layout_segment *pnfs_update_layout(struct inode *ino, void nfs4_deviceid_mark_client_invalid(struct nfs_client *clp); int pnfs_read_done_resend_to_mds(struct inode *inode, struct list_head *head, - const struct nfs_pgio_completion_ops *compl_ops); + const struct nfs_pgio_completion_ops *compl_ops, + struct nfs_direct_req *dreq); int pnfs_write_done_resend_to_mds(struct inode *inode, struct list_head *head, - const struct nfs_pgio_completion_ops *compl_ops); + const struct nfs_pgio_completion_ops *compl_ops, + struct nfs_direct_req *dreq); struct nfs4_threshold *pnfs_mdsthreshold_alloc(void); /* nfs4_deviceid_flags */ @@ -405,6 +408,11 @@ static inline int pnfs_return_layout(struct inode *ino) return 0; } +static inline int pnfs_commit_and_return_layout(struct inode *inode) +{ + return 0; +} + static inline bool pnfs_ld_layoutret_on_setattr(struct inode *inode) { diff --git a/fs/nfs/pnfs_dev.c b/fs/nfs/pnfs_dev.c index d35b62e..6da209b 100644 --- a/fs/nfs/pnfs_dev.c +++ b/fs/nfs/pnfs_dev.c @@ -77,9 +77,8 @@ _lookup_deviceid(const struct pnfs_layoutdriver_type *ld, long hash) { struct nfs4_deviceid_node *d; - struct hlist_node *n; - hlist_for_each_entry_rcu(d, n, &nfs4_deviceid_cache[hash], node) + hlist_for_each_entry_rcu(d, &nfs4_deviceid_cache[hash], node) if (d->ld == ld && d->nfs_client == clp && !memcmp(&d->deviceid, id, sizeof(*id))) { if (atomic_read(&d->ref)) @@ -248,12 +247,11 @@ static void _deviceid_purge_client(const struct nfs_client *clp, long hash) { struct nfs4_deviceid_node *d; - struct hlist_node *n; HLIST_HEAD(tmp); spin_lock(&nfs4_deviceid_lock); rcu_read_lock(); - hlist_for_each_entry_rcu(d, n, &nfs4_deviceid_cache[hash], node) + hlist_for_each_entry_rcu(d, &nfs4_deviceid_cache[hash], node) if (d->nfs_client == clp && atomic_read(&d->ref)) { hlist_del_init_rcu(&d->node); hlist_add_head(&d->tmpnode, &tmp); @@ -291,12 +289,11 @@ void nfs4_deviceid_mark_client_invalid(struct nfs_client *clp) { struct nfs4_deviceid_node *d; - struct hlist_node *n; int i; rcu_read_lock(); for (i = 0; i < NFS4_DEVICE_ID_HASH_SIZE; i ++){ - hlist_for_each_entry_rcu(d, n, &nfs4_deviceid_cache[i], node) + hlist_for_each_entry_rcu(d, &nfs4_deviceid_cache[i], node) if (d->nfs_client == clp) set_bit(NFS_DEVICEID_INVALID, &d->flags); } diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c index f084dac..fc8de90 100644 --- a/fs/nfs/proc.c +++ b/fs/nfs/proc.c @@ -662,7 +662,7 @@ nfs_proc_commit_setup(struct nfs_commit_data *data, struct rpc_message *msg) static int nfs_proc_lock(struct file *filp, int cmd, struct file_lock *fl) { - struct inode *inode = filp->f_path.dentry->d_inode; + struct inode *inode = file_inode(filp); return nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl); } diff --git a/fs/nfs/super.c b/fs/nfs/super.c index befbae0..2f8a29d 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -31,6 +31,7 @@ #include <linux/errno.h> #include <linux/unistd.h> #include <linux/sunrpc/clnt.h> +#include <linux/sunrpc/addr.h> #include <linux/sunrpc/stats.h> #include <linux/sunrpc/metrics.h> #include <linux/sunrpc/xprtsock.h> @@ -291,8 +292,9 @@ struct file_system_type nfs_fs_type = { .name = "nfs", .mount = nfs_fs_mount, .kill_sb = nfs_kill_super, - .fs_flags = FS_RENAME_DOES_D_MOVE|FS_REVAL_DOT|FS_BINARY_MOUNTDATA, + .fs_flags = FS_RENAME_DOES_D_MOVE|FS_BINARY_MOUNTDATA, }; +MODULE_ALIAS_FS("nfs"); EXPORT_SYMBOL_GPL(nfs_fs_type); struct file_system_type nfs_xdev_fs_type = { @@ -300,7 +302,7 @@ struct file_system_type nfs_xdev_fs_type = { .name = "nfs", .mount = nfs_xdev_mount, .kill_sb = nfs_kill_super, - .fs_flags = FS_RENAME_DOES_D_MOVE|FS_REVAL_DOT|FS_BINARY_MOUNTDATA, + .fs_flags = FS_RENAME_DOES_D_MOVE|FS_BINARY_MOUNTDATA, }; const struct super_operations nfs_sops = { @@ -330,8 +332,10 @@ struct file_system_type nfs4_fs_type = { .name = "nfs4", .mount = nfs_fs_mount, .kill_sb = nfs_kill_super, - .fs_flags = FS_RENAME_DOES_D_MOVE|FS_REVAL_DOT|FS_BINARY_MOUNTDATA, + .fs_flags = FS_RENAME_DOES_D_MOVE|FS_BINARY_MOUNTDATA, }; +MODULE_ALIAS_FS("nfs4"); +MODULE_ALIAS("nfs4"); EXPORT_SYMBOL_GPL(nfs4_fs_type); static int __init register_nfs4_fs(void) @@ -2716,6 +2720,5 @@ module_param(send_implementation_id, ushort, 0644); MODULE_PARM_DESC(send_implementation_id, "Send implementation ID with NFSv4.1 exchange_id"); MODULE_PARM_DESC(nfs4_unique_id, "nfs_client_id4 uniquifier string"); -MODULE_ALIAS("nfs4"); #endif /* CONFIG_NFS_V4 */ diff --git a/fs/nfs/unlink.c b/fs/nfs/unlink.c index d26a32f..1f1f38f 100644 --- a/fs/nfs/unlink.c +++ b/fs/nfs/unlink.c @@ -335,20 +335,14 @@ static void nfs_async_rename_done(struct rpc_task *task, void *calldata) struct inode *old_dir = data->old_dir; struct inode *new_dir = data->new_dir; struct dentry *old_dentry = data->old_dentry; - struct dentry *new_dentry = data->new_dentry; if (!NFS_PROTO(old_dir)->rename_done(task, old_dir, new_dir)) { rpc_restart_call_prepare(task); return; } - if (task->tk_status != 0) { + if (task->tk_status != 0) nfs_cancel_async_unlink(old_dentry); - return; - } - - d_drop(old_dentry); - d_drop(new_dentry); } /** @@ -549,6 +543,18 @@ nfs_sillyrename(struct inode *dir, struct dentry *dentry) error = rpc_wait_for_completion_task(task); if (error == 0) error = task->tk_status; + switch (error) { + case 0: + /* The rename succeeded */ + nfs_set_verifier(dentry, nfs_save_change_attribute(dir)); + d_move(dentry, sdentry); + break; + case -ERESTARTSYS: + /* The result of the rename is unknown. Play it safe by + * forcing a new lookup */ + d_drop(dentry); + d_drop(sdentry); + } rpc_put_task(task); out_dput: dput(sdentry); |