diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2016-09-25 23:23:57 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2016-09-25 23:34:19 +0200 |
| commit | f20fbc0717f9f007c94b2641134b19228d0ce9ed (patch) | |
| tree | 1404248ebbec552a3fb7928b75322b65d74de1bd /fs | |
| parent | netfilter: nf_log: get rid of XT_LOG_* macros (diff) | |
| parent | Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirshe... (diff) | |
| download | linux-f20fbc0717f9f007c94b2641134b19228d0ce9ed.tar.xz linux-f20fbc0717f9f007c94b2641134b19228d0ce9ed.zip | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Conflicts:
net/netfilter/core.c
net/netfilter/nf_tables_netdev.c
Resolve two conflicts before pull request for David's net-next tree:
1) Between c73c24849011 ("netfilter: nf_tables_netdev: remove redundant
ip_hdr assignment") from the net tree and commit ddc8b6027ad0
("netfilter: introduce nft_set_pktinfo_{ipv4, ipv6}_validate()").
2) Between e8bffe0cf964 ("net: Add _nf_(un)register_hooks symbols") and
Aaron Conole's patches to replace list_head with single linked list.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'fs')
68 files changed, 971 insertions, 467 deletions
diff --git a/fs/afs/rxrpc.c b/fs/afs/rxrpc.c index 37608be52abd..59bdaa7527b6 100644 --- a/fs/afs/rxrpc.c +++ b/fs/afs/rxrpc.c @@ -18,6 +18,7 @@ struct socket *afs_socket; /* my RxRPC socket */ static struct workqueue_struct *afs_async_calls; +static struct afs_call *afs_spare_incoming_call; static atomic_t afs_outstanding_calls; static void afs_free_call(struct afs_call *); @@ -26,7 +27,8 @@ static int afs_wait_for_call_to_complete(struct afs_call *); static void afs_wake_up_async_call(struct sock *, struct rxrpc_call *, unsigned long); static int afs_dont_wait_for_call_to_complete(struct afs_call *); static void afs_process_async_call(struct work_struct *); -static void afs_rx_new_call(struct sock *); +static void afs_rx_new_call(struct sock *, struct rxrpc_call *, unsigned long); +static void afs_rx_discard_new_call(struct rxrpc_call *, unsigned long); static int afs_deliver_cm_op_id(struct afs_call *); /* synchronous call management */ @@ -53,9 +55,9 @@ static const struct afs_call_type afs_RXCMxxxx = { .abort_to_error = afs_abort_to_error, }; -static void afs_collect_incoming_call(struct work_struct *); +static void afs_charge_preallocation(struct work_struct *); -static DECLARE_WORK(afs_collect_incoming_call_work, afs_collect_incoming_call); +static DECLARE_WORK(afs_charge_preallocation_work, afs_charge_preallocation); static int afs_wait_atomic_t(atomic_t *p) { @@ -100,13 +102,15 @@ int afs_open_socket(void) if (ret < 0) goto error_2; - rxrpc_kernel_new_call_notification(socket, afs_rx_new_call); + rxrpc_kernel_new_call_notification(socket, afs_rx_new_call, + afs_rx_discard_new_call); ret = kernel_listen(socket, INT_MAX); if (ret < 0) goto error_2; afs_socket = socket; + afs_charge_preallocation(NULL); _leave(" = 0"); return 0; @@ -126,12 +130,20 @@ void afs_close_socket(void) { _enter(""); + if (afs_spare_incoming_call) { + atomic_inc(&afs_outstanding_calls); + afs_free_call(afs_spare_incoming_call); + afs_spare_incoming_call = NULL; + } + _debug("outstanding %u", atomic_read(&afs_outstanding_calls)); wait_on_atomic_t(&afs_outstanding_calls, afs_wait_atomic_t, TASK_UNINTERRUPTIBLE); _debug("no outstanding calls"); flush_workqueue(afs_async_calls); + kernel_sock_shutdown(afs_socket, SHUT_RDWR); + flush_workqueue(afs_async_calls); sock_release(afs_socket); _debug("dework"); @@ -377,7 +389,7 @@ int afs_make_call(struct in_addr *addr, struct afs_call *call, gfp_t gfp, return wait_mode->wait(call); error_do_abort: - rxrpc_kernel_abort_call(afs_socket, rxcall, RX_USER_ABORT); + rxrpc_kernel_abort_call(afs_socket, rxcall, RX_USER_ABORT, -ret, "KSD"); error_kill_call: afs_end_call(call); _leave(" = %d", ret); @@ -425,12 +437,12 @@ static void afs_deliver_to_call(struct afs_call *call) case -ENOTCONN: abort_code = RX_CALL_DEAD; rxrpc_kernel_abort_call(afs_socket, call->rxcall, - abort_code); + abort_code, -ret, "KNC"); goto do_abort; case -ENOTSUPP: abort_code = RX_INVALID_OPERATION; rxrpc_kernel_abort_call(afs_socket, call->rxcall, - abort_code); + abort_code, -ret, "KIV"); goto do_abort; case -ENODATA: case -EBADMSG: @@ -440,7 +452,7 @@ static void afs_deliver_to_call(struct afs_call *call) if (call->state != AFS_CALL_AWAIT_REPLY) abort_code = RXGEN_SS_UNMARSHAL; rxrpc_kernel_abort_call(afs_socket, call->rxcall, - abort_code); + abort_code, EBADMSG, "KUM"); goto do_abort; } } @@ -463,6 +475,7 @@ do_abort: */ static int afs_wait_for_call_to_complete(struct afs_call *call) { + const char *abort_why; int ret; DECLARE_WAITQUEUE(myself, current); @@ -481,9 +494,11 @@ static int afs_wait_for_call_to_complete(struct afs_call *call) continue; } + abort_why = "KWC"; ret = call->error; if (call->state == AFS_CALL_COMPLETE) break; + abort_why = "KWI"; ret = -EINTR; if (signal_pending(current)) break; @@ -497,7 +512,7 @@ static int afs_wait_for_call_to_complete(struct afs_call *call) if (call->state < AFS_CALL_COMPLETE) { _debug("call incomplete"); rxrpc_kernel_abort_call(afs_socket, call->rxcall, - RX_CALL_DEAD); + RX_CALL_DEAD, -ret, abort_why); } _debug("call complete"); @@ -587,57 +602,65 @@ static void afs_process_async_call(struct work_struct *work) _leave(""); } +static void afs_rx_attach(struct rxrpc_call *rxcall, unsigned long user_call_ID) +{ + struct afs_call *call = (struct afs_call *)user_call_ID; + + call->rxcall = rxcall; +} + /* - * accept the backlog of incoming calls + * Charge the incoming call preallocation. */ -static void afs_collect_incoming_call(struct work_struct *work) +static void afs_charge_preallocation(struct work_struct *work) { - struct rxrpc_call *rxcall; - struct afs_call *call = NULL; - - _enter(""); + struct afs_call *call = afs_spare_incoming_call; - do { + for (;;) { if (!call) { call = kzalloc(sizeof(struct afs_call), GFP_KERNEL); - if (!call) { - rxrpc_kernel_reject_call(afs_socket); - return; - } + if (!call) + break; INIT_WORK(&call->async_work, afs_process_async_call); call->wait_mode = &afs_async_incoming_call; call->type = &afs_RXCMxxxx; init_waitqueue_head(&call->waitq); call->state = AFS_CALL_AWAIT_OP_ID; - - _debug("CALL %p{%s} [%d]", - call, call->type->name, - atomic_read(&afs_outstanding_calls)); - atomic_inc(&afs_outstanding_calls); } - rxcall = rxrpc_kernel_accept_call(afs_socket, - (unsigned long)call, - afs_wake_up_async_call); - if (!IS_ERR(rxcall)) { - call->rxcall = rxcall; - call->need_attention = true; - queue_work(afs_async_calls, &call->async_work); - call = NULL; - } - } while (!call); + if (rxrpc_kernel_charge_accept(afs_socket, + afs_wake_up_async_call, + afs_rx_attach, + (unsigned long)call, + GFP_KERNEL) < 0) + break; + call = NULL; + } + afs_spare_incoming_call = call; +} - if (call) - afs_free_call(call); +/* + * Discard a preallocated call when a socket is shut down. + */ +static void afs_rx_discard_new_call(struct rxrpc_call *rxcall, + unsigned long user_call_ID) +{ + struct afs_call *call = (struct afs_call *)user_call_ID; + + atomic_inc(&afs_outstanding_calls); + call->rxcall = NULL; + afs_free_call(call); } /* * Notification of an incoming call. */ -static void afs_rx_new_call(struct sock *sk) +static void afs_rx_new_call(struct sock *sk, struct rxrpc_call *rxcall, + unsigned long user_call_ID) { - queue_work(afs_wq, &afs_collect_incoming_call_work); + atomic_inc(&afs_outstanding_calls); + queue_work(afs_wq, &afs_charge_preallocation_work); } /* @@ -695,7 +718,7 @@ void afs_send_empty_reply(struct afs_call *call) case -ENOMEM: _debug("oom"); rxrpc_kernel_abort_call(afs_socket, call->rxcall, - RX_USER_ABORT); + RX_USER_ABORT, ENOMEM, "KOO"); default: afs_end_call(call); _leave(" [error]"); @@ -734,7 +757,7 @@ void afs_send_simple_reply(struct afs_call *call, const void *buf, size_t len) if (n == -ENOMEM) { _debug("oom"); rxrpc_kernel_abort_call(afs_socket, call->rxcall, - RX_USER_ABORT); + RX_USER_ABORT, ENOMEM, "KOO"); } afs_end_call(call); _leave(" [error]"); @@ -239,7 +239,12 @@ static struct dentry *aio_mount(struct file_system_type *fs_type, static const struct dentry_operations ops = { .d_dname = simple_dname, }; - return mount_pseudo(fs_type, "aio:", NULL, &ops, AIO_RING_MAGIC); + struct dentry *root = mount_pseudo(fs_type, "aio:", NULL, &ops, + AIO_RING_MAGIC); + + if (!IS_ERR(root)) + root->d_sb->s_iflags |= SB_I_NOEXEC; + return root; } /* aio_setup diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c index b493909e7492..d8e6d421c27f 100644 --- a/fs/autofs4/expire.c +++ b/fs/autofs4/expire.c @@ -417,6 +417,7 @@ static struct dentry *should_expire(struct dentry *dentry, } return NULL; } + /* * Find an eligible tree to time-out * A tree is eligible if :- @@ -432,6 +433,7 @@ struct dentry *autofs4_expire_indirect(struct super_block *sb, struct dentry *root = sb->s_root; struct dentry *dentry; struct dentry *expired; + struct dentry *found; struct autofs_info *ino; if (!root) @@ -442,31 +444,46 @@ struct dentry *autofs4_expire_indirect(struct super_block *sb, dentry = NULL; while ((dentry = get_next_positive_subdir(dentry, root))) { + int flags = how; + spin_lock(&sbi->fs_lock); ino = autofs4_dentry_ino(dentry); - if (ino->flags & AUTOFS_INF_WANT_EXPIRE) - expired = NULL; - else - expired = should_expire(dentry, mnt, timeout, how); - if (!expired) { + if (ino->flags & AUTOFS_INF_WANT_EXPIRE) { spin_unlock(&sbi->fs_lock); continue; } + spin_unlock(&sbi->fs_lock); + + expired = should_expire(dentry, mnt, timeout, flags); + if (!expired) + continue; + + spin_lock(&sbi->fs_lock); ino = autofs4_dentry_ino(expired); ino->flags |= AUTOFS_INF_WANT_EXPIRE; spin_unlock(&sbi->fs_lock); synchronize_rcu(); - spin_lock(&sbi->fs_lock); - if (should_expire(expired, mnt, timeout, how)) { - if (expired != dentry) - dput(dentry); - goto found; - } + /* Make sure a reference is not taken on found if + * things have changed. + */ + flags &= ~AUTOFS_EXP_LEAVES; + found = should_expire(expired, mnt, timeout, how); + if (!found || found != expired) + /* Something has changed, continue */ + goto next; + + if (expired != dentry) + dput(dentry); + + spin_lock(&sbi->fs_lock); + goto found; +next: + spin_lock(&sbi->fs_lock); ino->flags &= ~AUTOFS_INF_WANT_EXPIRE; + spin_unlock(&sbi->fs_lock); if (expired != dentry) dput(expired); - spin_unlock(&sbi->fs_lock); } return NULL; @@ -483,6 +500,7 @@ int autofs4_expire_wait(struct dentry *dentry, int rcu_walk) struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb); struct autofs_info *ino = autofs4_dentry_ino(dentry); int status; + int state; /* Block on any pending expire */ if (!(ino->flags & AUTOFS_INF_WANT_EXPIRE)) @@ -490,8 +508,19 @@ int autofs4_expire_wait(struct dentry *dentry, int rcu_walk) if (rcu_walk) return -ECHILD; +retry: spin_lock(&sbi->fs_lock); - if (ino->flags & AUTOFS_INF_EXPIRING) { + state = ino->flags & (AUTOFS_INF_WANT_EXPIRE | AUTOFS_INF_EXPIRING); + if (state == AUTOFS_INF_WANT_EXPIRE) { + spin_unlock(&sbi->fs_lock); + /* + * Possibly being selected for expire, wait until + * it's selected or not. + */ + schedule_timeout_uninterruptible(HZ/10); + goto retry; + } + if (state & AUTOFS_INF_EXPIRING) { spin_unlock(&sbi->fs_lock); pr_debug("waiting for expire %p name=%pd\n", dentry, dentry); diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c index 7f6aff3f72eb..e5495f37c6ed 100644 --- a/fs/binfmt_elf.c +++ b/fs/binfmt_elf.c @@ -853,6 +853,7 @@ static int load_elf_binary(struct linux_binprm *bprm) current->flags |= PF_RANDOMIZE; setup_new_exec(bprm); + install_exec_creds(bprm); /* Do this so that we can load the interpreter, if need be. We will change some of these later */ @@ -1044,7 +1045,6 @@ static int load_elf_binary(struct linux_binprm *bprm) goto out; #endif /* ARCH_HAS_SETUP_ADDITIONAL_PAGES */ - install_exec_creds(bprm); retval = create_elf_tables(bprm, &loc->elf_ex, load_addr, interp_load_addr); if (retval < 0) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index eff3993c77b3..33fe03551105 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -427,6 +427,7 @@ struct btrfs_space_info { struct list_head ro_bgs; struct list_head priority_tickets; struct list_head tickets; + u64 tickets_id; struct rw_semaphore groups_sem; /* for block groups in our same type */ diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 0450dc410533..38c2df84cabd 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -4901,11 +4901,6 @@ btrfs_calc_reclaim_metadata_size(struct btrfs_root *root, u64 expected; u64 to_reclaim = 0; - to_reclaim = min_t(u64, num_online_cpus() * SZ_1M, SZ_16M); - if (can_overcommit(root, space_info, to_reclaim, - BTRFS_RESERVE_FLUSH_ALL)) - return 0; - list_for_each_entry(ticket, &space_info->tickets, list) to_reclaim += ticket->bytes; list_for_each_entry(ticket, &space_info->priority_tickets, list) @@ -4913,6 +4908,11 @@ btrfs_calc_reclaim_metadata_size(struct btrfs_root *root, if (to_reclaim) return to_reclaim; + to_reclaim = min_t(u64, num_online_cpus() * SZ_1M, SZ_16M); + if (can_overcommit(root, space_info, to_reclaim, + BTRFS_RESERVE_FLUSH_ALL)) + return 0; + used = space_info->bytes_used + space_info->bytes_reserved + space_info->bytes_pinned + space_info->bytes_readonly + space_info->bytes_may_use; @@ -4966,12 +4966,12 @@ static void wake_all_tickets(struct list_head *head) */ static void btrfs_async_reclaim_metadata_space(struct work_struct *work) { - struct reserve_ticket *last_ticket = NULL; struct btrfs_fs_info *fs_info; struct btrfs_space_info *space_info; u64 to_reclaim; int flush_state; int commit_cycles = 0; + u64 last_tickets_id; fs_info = container_of(work, struct btrfs_fs_info, async_reclaim_work); space_info = __find_space_info(fs_info, BTRFS_BLOCK_GROUP_METADATA); @@ -4984,8 +4984,7 @@ static void btrfs_async_reclaim_metadata_space(struct work_struct *work) spin_unlock(&space_info->lock); return; } - last_ticket = list_first_entry(&space_info->tickets, - struct reserve_ticket, list); + last_tickets_id = space_info->tickets_id; spin_unlock(&space_info->lock); flush_state = FLUSH_DELAYED_ITEMS_NR; @@ -5005,10 +5004,10 @@ static void btrfs_async_reclaim_metadata_space(struct work_struct *work) space_info); ticket = list_first_entry(&space_info->tickets, struct reserve_ticket, list); - if (last_ticket == ticket) { + if (last_tickets_id == space_info->tickets_id) { flush_state++; } else { - last_ticket = ticket; + last_tickets_id = space_info->tickets_id; flush_state = FLUSH_DELAYED_ITEMS_NR; if (commit_cycles) commit_cycles--; @@ -5384,6 +5383,7 @@ again: list_del_init(&ticket->list); num_bytes -= ticket->bytes; ticket->bytes = 0; + space_info->tickets_id++; wake_up(&ticket->wait); } else { ticket->bytes -= num_bytes; @@ -5426,6 +5426,7 @@ again: num_bytes -= ticket->bytes; space_info->bytes_may_use += ticket->bytes; ticket->bytes = 0; + space_info->tickets_id++; wake_up(&ticket->wait); } else { trace_btrfs_space_reservation(fs_info, "space_info", @@ -8216,6 +8217,7 @@ int btrfs_alloc_logged_file_extent(struct btrfs_trans_handle *trans, { int ret; struct btrfs_block_group_cache *block_group; + struct btrfs_space_info *space_info; /* * Mixed block groups will exclude before processing the log so we only @@ -8231,9 +8233,14 @@ int btrfs_alloc_logged_file_extent(struct btrfs_trans_handle *trans, if (!block_group) return -EINVAL; - ret = btrfs_add_reserved_bytes(block_group, ins->offset, - ins->offset, 0); - BUG_ON(ret); /* logic error */ + space_info = block_group->space_info; + spin_lock(&space_info->lock); + spin_lock(&block_group->lock); + space_info->bytes_reserved += ins->offset; + block_group->reserved += ins->offset; + spin_unlock(&block_group->lock); + spin_unlock(&space_info->lock); + ret = alloc_reserved_file_extent(trans, root, 0, root_objectid, 0, owner, offset, ins, 1); btrfs_put_block_group(block_group); diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index 8a2c2a07987b..c0c13dc6fe12 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -4200,9 +4200,11 @@ restart: err = PTR_ERR(trans); goto out_free; } - err = qgroup_fix_relocated_data_extents(trans, rc); - if (err < 0) { - btrfs_abort_transaction(trans, err); + ret = qgroup_fix_relocated_data_extents(trans, rc); + if (ret < 0) { + btrfs_abort_transaction(trans, ret); + if (!err) + err = ret; goto out_free; } btrfs_commit_transaction(trans, rc->extent_root); diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c index efe129fe2678..a87675ffd02b 100644 --- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -4268,10 +4268,12 @@ static int process_all_refs(struct send_ctx *sctx, } btrfs_release_path(path); + /* + * We don't actually care about pending_move as we are simply + * re-creating this inode and will be rename'ing it into place once we + * rename the parent directory. + */ ret = process_recorded_refs(sctx, &pending_move); - /* Only applicable to an incremental send. */ - ASSERT(pending_move == 0); - out: btrfs_free_path(path); return ret; diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index e935035ac034..ef9c55bc7907 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -2867,6 +2867,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans, if (log_root_tree->log_transid_committed >= root_log_ctx.log_transid) { blk_finish_plug(&plug); + list_del_init(&root_log_ctx.list); mutex_unlock(&log_root_tree->log_mutex); ret = root_log_ctx.log_ret; goto out; diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c index c64a0b794d49..df4b3e6fa563 100644 --- a/fs/ceph/dir.c +++ b/fs/ceph/dir.c @@ -597,7 +597,7 @@ static bool need_reset_readdir(struct ceph_file_info *fi, loff_t new_pos) if (is_hash_order(new_pos)) { /* no need to reset last_name for a forward seek when * dentries are sotred in hash order */ - } else if (fi->frag |= fpos_frag(new_pos)) { + } else if (fi->frag != fpos_frag(new_pos)) { return true; } rinfo = fi->last_readdir ? &fi->last_readdir->r_reply_info : NULL; diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 6bbec5e784cd..14ae4b8e1a3c 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -609,6 +609,9 @@ cifs_get_root(struct smb_vol *vol, struct super_block *sb) char *s, *p; char sep; + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH) + return dget(sb->s_root); + full_path = cifs_build_path_to_root(vol, cifs_sb, cifs_sb_master_tcon(cifs_sb)); if (full_path == NULL) @@ -686,26 +689,22 @@ cifs_do_mount(struct file_system_type *fs_type, cifs_sb->mountdata = kstrndup(data, PAGE_SIZE, GFP_KERNEL); if (cifs_sb->mountdata == NULL) { root = ERR_PTR(-ENOMEM); - goto out_cifs_sb; + goto out_free; } - if (volume_info->prepath) { - cifs_sb->prepath = kstrdup(volume_info->prepath, GFP_KERNEL); - if (cifs_sb->prepath == NULL) { - root = ERR_PTR(-ENOMEM); - goto out_cifs_sb; - } + rc = cifs_setup_cifs_sb(volume_info, cifs_sb); + if (rc) { + root = ERR_PTR(rc); + goto out_free; } - cifs_setup_cifs_sb(volume_info, cifs_sb); - rc = cifs_mount(cifs_sb, volume_info); if (rc) { if (!(flags & MS_SILENT)) cifs_dbg(VFS, "cifs_mount failed w/return code = %d\n", rc); root = ERR_PTR(rc); - goto out_mountdata; + goto out_free; } mnt_data.vol = volume_info; @@ -735,11 +734,7 @@ cifs_do_mount(struct file_system_type *fs_type, sb->s_flags |= MS_ACTIVE; } - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH) - root = dget(sb->s_root); - else - root = cifs_get_root(volume_info, sb); - + root = cifs_get_root(volume_info, sb); if (IS_ERR(root)) goto out_super; @@ -752,9 +747,9 @@ out: cifs_cleanup_volume_info(volume_info); return root; -out_mountdata: +out_free: + kfree(cifs_sb->prepath); kfree(cifs_sb->mountdata); -out_cifs_sb: kfree(cifs_sb); out_nls: unload_nls(volume_info->local_nls); diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index 1243bd326591..95dab43646f0 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -184,7 +184,7 @@ extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf, unsigned int to_read); extern int cifs_read_page_from_socket(struct TCP_Server_Info *server, struct page *page, unsigned int to_read); -extern void cifs_setup_cifs_sb(struct smb_vol *pvolume_info, +extern int cifs_setup_cifs_sb(struct smb_vol *pvolume_info, struct cifs_sb_info *cifs_sb); extern int cifs_match_super(struct super_block *, void *); extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info); diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 7ae03283bd61..2e4f4bad8b1e 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -2781,6 +2781,24 @@ compare_mount_options(struct super_block *sb, struct cifs_mnt_data *mnt_data) return 1; } +static int +match_prepath(struct super_block *sb, struct cifs_mnt_data *mnt_data) +{ + struct cifs_sb_info *old = CIFS_SB(sb); + struct cifs_sb_info *new = mnt_data->cifs_sb; + + if (old->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH) { + if (!(new->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH)) + return 0; + /* The prepath should be null terminated strings */ + if (strcmp(new->prepath, old->prepath)) + return 0; + + return 1; + } + return 0; +} + int cifs_match_super(struct super_block *sb, void *data) { @@ -2808,7 +2826,8 @@ cifs_match_super(struct super_block *sb, void *data) if (!match_server(tcp_srv, volume_info) || !match_session(ses, volume_info) || - !match_tcon(tcon, volume_info->UNC)) { + !match_tcon(tcon, volume_info->UNC) || + !match_prepath(sb, mnt_data)) { rc = 0; goto out; } @@ -3222,7 +3241,7 @@ void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon, } } -void cifs_setup_cifs_sb(struct smb_vol *pvolume_info, +int cifs_setup_cifs_sb(struct smb_vol *pvolume_info, struct cifs_sb_info *cifs_sb) { INIT_DELAYED_WORK(&cifs_sb->prune_tlinks, cifs_prune_tlinks); @@ -3316,6 +3335,14 @@ void cifs_setup_cifs_sb(struct smb_vol *pvolume_info, if ((pvolume_info->cifs_acl) && (pvolume_info->dynperm)) cifs_dbg(VFS, "mount option dynperm ignored if cifsacl mount option supported\n"); + + if (pvolume_info->prepath) { + cifs_sb->prepath = kstrdup(pvolume_info->prepath, GFP_KERNEL); + if (cifs_sb->prepath == NULL) + return -ENOMEM; + } + + return 0; } static void diff --git a/fs/crypto/policy.c b/fs/crypto/policy.c index 0f9961eede1e..ed115acb5dee 100644 --- a/fs/crypto/policy.c +++ b/fs/crypto/policy.c @@ -11,6 +11,7 @@ #include <linux/random.h> #include <linux/string.h> #include <linux/fscrypto.h> +#include <linux/mount.h> static int inode_has_encryption_context(struct inode *inode) { @@ -92,26 +93,42 @@ static int create_encryption_context_from_policy(struct inode *inode, return inode->i_sb->s_cop->set_context(inode, &ctx, sizeof(ctx), NULL); } -int fscrypt_process_policy(struct inode *inode, +int fscrypt_process_policy(struct file *filp, const struct fscrypt_policy *policy) { + struct inode *inode = file_inode(filp); + int ret; + + if (!inode_owner_or_capable(inode)) + return -EACCES; + if (policy->version != 0) return -EINVAL; + ret = mnt_want_write_file(filp); + if (ret) + return ret; + if (!inode_has_encryption_context(inode)) { - if (!inode->i_sb->s_cop->empty_dir) - return -EOPNOTSUPP; - if (!inode->i_sb->s_cop->empty_dir(inode)) - return -ENOTEMPTY; - return create_encryption_context_from_policy(inode, policy); + if (!S_ISDIR(inode->i_mode)) + ret = -EINVAL; + else if (!inode->i_sb->s_cop->empty_dir) + ret = -EOPNOTSUPP; + else if (!inode->i_sb->s_cop->empty_dir(inode)) + ret = -ENOTEMPTY; + else + ret = create_encryption_context_from_policy(inode, + policy); + } else if (!is_encryption_context_consistent_with_policy(inode, + policy)) { + printk(KERN_WARNING + "%s: Policy inconsistent with encryption context\n", + __func__); + ret = -EINVAL; } - if (is_encryption_context_consistent_with_policy(inode, policy)) - return 0; - - printk(KERN_WARNING "%s: Policy inconsistent with encryption context\n", - __func__); - return -EINVAL; + mnt_drop_write_file(filp); + return ret; } EXPORT_SYMBOL(fscrypt_process_policy); diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c index d116453b0276..79a5941c2474 100644 --- a/fs/devpts/inode.c +++ b/fs/devpts/inode.c @@ -585,7 +585,8 @@ struct dentry *devpts_pty_new(struct pts_fs_info *fsi, int index, void *priv) */ void *devpts_get_priv(struct dentry *dentry) { - WARN_ON_ONCE(dentry->d_sb->s_magic != DEVPTS_SUPER_MAGIC); + if (dentry->d_sb->s_magic != DEVPTS_SUPER_MAGIC) + return NULL; return dentry->d_fsdata; } diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c index 10686fd67fb4..1bb7df5e4536 100644 --- a/fs/ext4/ioctl.c +++ b/fs/ext4/ioctl.c @@ -776,7 +776,7 @@ resizefs_out: (struct fscrypt_policy __user *)arg, sizeof(policy))) return -EFAULT; - return fscrypt_process_policy(inode, &policy); + return fscrypt_process_policy(filp, &policy); #else return -EOPNOTSUPP; #endif diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 47abb96098e4..28f4f4cbb8d8 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -1757,21 +1757,14 @@ static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg) { struct fscrypt_policy policy; struct inode *inode = file_inode(filp); - int ret; if (copy_from_user(&policy, (struct fscrypt_policy __user *)arg, sizeof(policy))) return -EFAULT; - ret = mnt_want_write_file(filp); - if (ret) - return ret; - f2fs_update_time(F2FS_I_SB(inode), REQ_TIME); - ret = fscrypt_process_policy(inode, &policy); - mnt_drop_write_file(filp); - return ret; + return fscrypt_process_policy(filp, &policy); } static int f2fs_ioc_get_encryption_policy(struct file *filp, unsigned long arg) diff --git a/fs/fuse/file.c b/fs/fuse/file.c index f394aff59c36..3988b43c2f5a 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -530,13 +530,13 @@ void fuse_read_fill(struct fuse_req *req, struct file *file, loff_t pos, req->out.args[0].size = count; } -static void fuse_release_user_pages(struct fuse_req *req, int write) +static void fuse_release_user_pages(struct fuse_req *req, bool should_dirty) { unsigned i; for (i = 0; i < req->num_pages; i++) { struct page *page = req->pages[i]; - if (write) + if (should_dirty) set_page_dirty_lock(page); put_page(page); } @@ -1320,6 +1320,7 @@ ssize_t fuse_direct_io(struct fuse_io_priv *io, struct iov_iter *iter, loff_t *ppos, int flags) { int write = flags & FUSE_DIO_WRITE; + bool should_dirty = !write && iter_is_iovec(iter); int cuse = flags & FUSE_DIO_CUSE; struct file *file = io->file; struct inode *inode = file->f_mapping->host; @@ -1363,7 +1364,7 @@ ssize_t fuse_direct_io(struct fuse_io_priv *io, struct iov_iter *iter, nres = fuse_send_read(req, io, pos, nbytes, owner); if (!io->async) - fuse_release_user_pages(req, !write); + fuse_release_user_pages(req, should_dirty); if (req->out.h.error) { err = req->out.h.error; break; diff --git a/fs/ioctl.c b/fs/ioctl.c index 0f56deb24ce6..c415668c86d4 100644 --- a/fs/ioctl.c +++ b/fs/ioctl.c @@ -568,7 +568,7 @@ static int ioctl_fsthaw(struct file *filp) return thaw_super(sb); } -static long ioctl_file_dedupe_range(struct file *file, void __user *arg) +static int ioctl_file_dedupe_range(struct file *file, void __user *arg) { struct file_dedupe_range __user *argp = arg; struct file_dedupe_range *same = NULL; @@ -582,6 +582,10 @@ static long ioctl_file_dedupe_range(struct file *file, void __user *arg) } size = offsetof(struct file_dedupe_range __user, info[count]); + if (size > PAGE_SIZE) { + ret = -ENOMEM; + goto out; + } same = memdup_user(argp, size); if (IS_ERR(same)) { diff --git a/fs/iomap.c b/fs/iomap.c index 0342254646e3..706270f21b35 100644 --- a/fs/iomap.c +++ b/fs/iomap.c @@ -428,9 +428,12 @@ static int iomap_to_fiemap(struct fiemap_extent_info *fi, break; } + if (iomap->flags & IOMAP_F_MERGED) + flags |= FIEMAP_EXTENT_MERGED; + return fiemap_fill_next_extent(fi, iomap->offset, iomap->blkno != IOMAP_NULL_BLOCK ? iomap->blkno << 9: 0, - iomap->length, flags | FIEMAP_EXTENT_MERGED); + iomap->length, flags); } diff --git a/fs/kernfs/file.c b/fs/kernfs/file.c index e1574008adc9..2bcb86e6e6ca 100644 --- a/fs/kernfs/file.c +++ b/fs/kernfs/file.c @@ -840,21 +840,35 @@ repeat: mutex_lock(&kernfs_mutex); list_for_each_entry(info, &kernfs_root(kn)->supers, node) { + struct kernfs_node *parent; struct inode *inode; - struct dentry *dentry; + /* + * We want fsnotify_modify() on @kn but as the + * modifications aren't originating from userland don't + * have the matching @file available. Look up the inodes + * and generate the events manually. + */ inode = ilookup(info->sb, kn->ino); if (!inode) continue; - dentry = d_find_any_alias(inode); - if (dentry) { - fsnotify_parent(NULL, dentry, FS_MODIFY); - fsnotify(inode, FS_MODIFY, inode, FSNOTIFY_EVENT_INODE, - NULL, 0); - dput(dentry); + parent = kernfs_get_parent(kn); + if (parent) { + struct inode *p_inode; + + p_inode = ilookup(info->sb, parent->ino); + if (p_inode) { + fsnotify(p_inode, FS_MODIFY | FS_EVENT_ON_CHILD, + inode, FSNOTIFY_EVENT_INODE, kn->name, 0); + iput(p_inode); + } + + kernfs_put(parent); } + fsnotify(inode, FS_MODIFY, inode, FSNOTIFY_EVENT_INODE, + kn->name, 0); iput(inode); } diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c index f55a4e756047..217847679f0e 100644 --- a/fs/nfs/blocklayout/blocklayout.c +++ b/fs/nfs/blocklayout/blocklayout.c @@ -346,7 +346,7 @@ static void bl_write_cleanup(struct work_struct *work) PAGE_SIZE - 1) & (loff_t)PAGE_MASK; ext_tree_mark_written(bl, start >> SECTOR_SHIFT, - (end - start) >> SECTOR_SHIFT); + (end - start) >> SECTOR_SHIFT, end); } pnfs_ld_write_done(hdr); diff --git a/fs/nfs/blocklayout/blocklayout.h b/fs/nfs/blocklayout/blocklayout.h index 18e6fd0b9506..efc007f00742 100644 --- a/fs/nfs/blocklayout/blocklayout.h +++ b/fs/nfs/blocklayout/blocklayout.h @@ -141,6 +141,7 @@ struct pnfs_block_layout { struct rb_root bl_ext_ro; spinlock_t bl_ext_lock; /* Protects list manipulation */ bool bl_scsi_layout; + u64 bl_lwb; }; static inline struct pnfs_block_layout * @@ -182,7 +183,7 @@ int ext_tree_insert(struct pnfs_block_layout *bl, int ext_tree_remove(struct pnfs_block_layout *bl, bool rw, sector_t start, sector_t end); int ext_tree_mark_written(struct pnfs_block_layout *bl, sector_t start, - sector_t len); + sector_t len, u64 lwb); bool ext_tree_lookup(struct pnfs_block_layout *bl, sector_t isect, struct pnfs_block_extent *ret, bool rw); int ext_tree_prepare_commit(struct nfs4_layoutcommit_args *arg); diff --git a/fs/nfs/blocklayout/extent_tree.c b/fs/nfs/blocklayout/extent_tree.c index 992bcb19c11e..c85fbfd2d0d9 100644 --- a/fs/nfs/blocklayout/extent_tree.c +++ b/fs/nfs/blocklayout/extent_tree.c @@ -402,7 +402,7 @@ ext_tree_split(struct rb_root *root, struct pnfs_block_extent *be, int ext_tree_mark_written(struct pnfs_block_layout *bl, sector_t start, - sector_t len) + sector_t len, u64 lwb) { struct rb_root *root = &bl->bl_ext_rw; sector_t end = start + len; @@ -471,6 +471,8 @@ ext_tree_mark_written(struct pnfs_block_layout *bl, sector_t start, } } out: + if (bl->bl_lwb < lwb) + bl->bl_lwb = lwb; spin_unlock(&bl->bl_ext_lock); __ext_put_deviceids(&tmp); @@ -518,7 +520,7 @@ static __be32 *encode_scsi_range(struct pnfs_block_extent *be, __be32 *p) } static int ext_tree_encode_commit(struct pnfs_block_layout *bl, __be32 *p, - size_t buffer_size, size_t *count) + size_t buffer_size, size_t *count, __u64 *lastbyte) { struct pnfs_block_extent *be; int ret = 0; @@ -542,6 +544,8 @@ static int ext_tree_encode_commit(struct pnfs_block_layout *bl, __be32 *p, p = encode_block_extent(be, p); be->be_tag = EXTENT_COMMITTING; } + *lastbyte = bl->bl_lwb - 1; + bl->bl_lwb = 0; spin_unlock(&bl->bl_ext_lock); return ret; @@ -564,7 +568,7 @@ ext_tree_prepare_commit(struct nfs4_layoutcommit_args *arg) arg->layoutupdate_pages = &arg->layoutupdate_page; retry: - ret = ext_tree_encode_commit(bl, start_p + 1, buffer_size, &count); + ret = ext_tree_encode_commit(bl, start_p + 1, buffer_size, &count, &arg->lastbytewritten); if (unlikely(ret)) { ext_tree_free_commitdata(arg, buffer_size); diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c index a7f2e6e33305..52a28311e2a4 100644 --- a/fs/nfs/callback.c +++ b/fs/nfs/callback.c @@ -275,6 +275,7 @@ static int nfs_callback_up_net(int minorversion, struct svc_serv *serv, err_socks: svc_rpcb_cleanup(serv, net); err_bind: + nn->cb_users[minorversion]--; dprintk("NFS: Couldn't create callback socket: err = %d; " "net = %p\n", ret, net); return ret; diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c index c92a75e066a6..f953ef6b2f2e 100644 --- a/fs/nfs/callback_proc.c +++ b/fs/nfs/callback_proc.c @@ -454,11 +454,8 @@ static bool referring_call_exists(struct nfs_client *clp, ((u32 *)&rclist->rcl_sessionid.data)[3], ref->rc_sequenceid, ref->rc_slotid); - spin_lock(&tbl->slot_tbl_lock); - status = (test_bit(ref->rc_slotid, tbl->used_slots) && - tbl->slots[ref->rc_slotid].seq_nr == - ref->rc_sequenceid); - spin_unlock(&tbl->slot_tbl_lock); + status = nfs4_slot_wait_on_seqid(tbl, ref->rc_slotid, + ref->rc_sequenceid, HZ >> 1) < 0; if (status) goto out; } @@ -487,7 +484,6 @@ __be32 nfs4_callback_sequence(struct cb_sequenceargs *args, goto out; tbl = &clp->cl_session->bc_slot_table; - slot = tbl->slots + args->csa_slotid; /* Set up res before grabbing the spinlock */ memcpy(&res->csr_sessionid, &args->csa_sessionid, diff --git a/fs/nfs/client.c b/fs/nfs/client.c index 003ebce4bbc4..1e106780a237 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -426,7 +426,7 @@ EXPORT_SYMBOL_GPL(nfs_mark_client_ready); * Initialise the timeout values for a connection */ void nfs_init_timeout_values(struct rpc_timeout *to, int proto, - unsigned int timeo, unsigned int retrans) + int timeo, int retrans) { to->to_initval = timeo * HZ / 10; to->to_retries = retrans; @@ -434,9 +434,9 @@ void nfs_init_timeout_values(struct rpc_timeout *to, int proto, switch (proto) { case XPRT_TRANSPORT_TCP: case XPRT_TRANSPORT_RDMA: - if (to->to_retries == 0) + if (retrans == NFS_UNSPEC_RETRANS) to->to_retries = NFS_DEF_TCP_RETRANS; - if (to->to_initval == 0) + if (timeo == NFS_UNSPEC_TIMEO || to->to_retries == 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; @@ -449,9 +449,9 @@ void nfs_init_timeout_values(struct rpc_timeout *to, int proto, to->to_exponential = 0; break; case XPRT_TRANSPORT_UDP: - if (to->to_retries == 0) + if (retrans == NFS_UNSPEC_RETRANS) to->to_retries = NFS_DEF_UDP_RETRANS; - if (!to->to_initval) + if (timeo == NFS_UNSPEC_TIMEO || to->to_initval == 0) to->to_initval = NFS_DEF_UDP_TIMEO * HZ / 10; if (to->to_initval > NFS_MAX_UDP_TIMEOUT) to->to_initval = NFS_MAX_UDP_TIMEOUT; diff --git a/fs/nfs/file.c b/fs/nfs/file.c index 7d620970f2e1..ca699ddc11c1 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -657,7 +657,10 @@ ssize_t nfs_file_write(struct kiocb *iocb, struct iov_iter *from) if (result <= 0) goto out; - written = generic_write_sync(iocb, result); + result = generic_write_sync(iocb, result); + if (result < 0) + goto out; + written = result; iocb->ki_pos += written; /* Return error values */ diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c index e6206eaf2bdf..51b51369704c 100644 --- a/fs/nfs/flexfilelayout/flexfilelayout.c +++ b/fs/nfs/flexfilelayout/flexfilelayout.c @@ -37,6 +37,7 @@ ff_layout_alloc_layout_hdr(struct inode *inode, gfp_t gfp_flags) if (ffl) { INIT_LIST_HEAD(&ffl->error_list); INIT_LIST_HEAD(&ffl->mirrors); + ffl->last_report_time = ktime_get(); return &ffl->generic_hdr; } else return NULL; @@ -640,19 +641,18 @@ nfs4_ff_layoutstat_start_io(struct nfs4_ff_layout_mirror *mirror, { static const ktime_t notime = {0}; s64 report_interval = FF_LAYOUTSTATS_REPORT_INTERVAL; + struct nfs4_flexfile_layout *ffl = FF_LAYOUT_FROM_HDR(mirror->layout); nfs4_ff_start_busy_timer(&layoutstat->busy_timer, now); if (ktime_equal(mirror->start_time, notime)) mirror->start_time = now; - if (ktime_equal(mirror->last_report_time, notime)) - mirror->last_report_time = now; if (mirror->report_interval != 0) report_interval = (s64)mirror->report_interval * 1000LL; else if (layoutstats_timer != 0) report_interval = (s64)layoutstats_timer * 1000LL; - if (ktime_to_ms(ktime_sub(now, mirror->last_report_time)) >= + if (ktime_to_ms(ktime_sub(now, ffl->last_report_time)) >= report_interval) { - mirror->last_report_time = now; + ffl->last_report_time = now; return true; } @@ -806,11 +806,14 @@ ff_layout_choose_best_ds_for_read(struct pnfs_layout_segment *lseg, { struct nfs4_ff_layout_segment *fls = FF_LAYOUT_LSEG(lseg); struct nfs4_pnfs_ds *ds; + bool fail_return = false; int idx; /* mirrors are sorted by efficiency */ for (idx = start_idx; idx < fls->mirror_array_cnt; idx++) { - ds = nfs4_ff_layout_prepare_ds(lseg, idx, false); + if (idx+1 == fls->mirror_array_cnt) + fail_return = true; + ds = nfs4_ff_layout_prepare_ds(lseg, idx, fail_return); if (ds) { *best_idx = idx; return ds; @@ -859,6 +862,7 @@ ff_layout_pg_init_read(struct nfs_pageio_descriptor *pgio, struct nfs4_pnfs_ds *ds; int ds_idx; +retry: /* Use full layout for now */ if (!pgio->pg_lseg) ff_layout_pg_get_read(pgio, req, false); @@ -871,10 +875,13 @@ ff_layout_pg_init_read(struct nfs_pageio_descriptor *pgio, ds = ff_layout_choose_best_ds_for_read(pgio->pg_lseg, 0, &ds_idx); if (!ds) { - if (ff_layout_no_fallback_to_mds(pgio->pg_lseg)) - goto out_pnfs; - else + if (!ff_layout_no_fallback_to_mds(pgio->pg_lseg)) goto out_mds; + pnfs_put_lseg(pgio->pg_lseg); + pgio->pg_lseg = NULL; + /* Sleep for 1 second before retrying */ + ssleep(1); + goto retry; } mirror = FF_LAYOUT_COMP(pgio->pg_lseg, ds_idx); @@ -890,12 +897,6 @@ out_mds: pnfs_put_lseg(pgio->pg_lseg); pgio->pg_lseg = NULL; nfs_pageio_reset_read_mds(pgio); - return; - -out_pnfs: - pnfs_set_lo_fail(pgio->pg_lseg); - pnfs_put_lseg(pgio->pg_lseg); - pgio->pg_lseg = NULL; } static void @@ -909,6 +910,7 @@ ff_layout_pg_init_write(struct nfs_pageio_descriptor *pgio, int i; int status; +retry: if (!pgio->pg_lseg) { pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode, req->wb_context, @@ -940,10 +942,13 @@ ff_layout_pg_init_write(struct nfs_pageio_descriptor *pgio, for (i = 0; i < pgio->pg_mirror_count; i++) { ds = nfs4_ff_layout_prepare_ds(pgio->pg_lseg, i, true); if (!ds) { - if (ff_layout_no_fallback_to_mds(pgio->pg_lseg)) - goto out_pnfs; - else + if (!ff_layout_no_fallback_to_mds(pgio->pg_lseg)) goto out_mds; + pnfs_put_lseg(pgio->pg_lseg); + pgio->pg_lseg = NULL; + /* Sleep for 1 second before retrying */ + ssleep(1); + goto retry; } pgm = &pgio->pg_mirrors[i]; mirror = FF_LAYOUT_COMP(pgio->pg_lseg, i); @@ -956,12 +961,6 @@ out_mds: pnfs_put_lseg(pgio->pg_lseg); pgio->pg_lseg = NULL; nfs_pageio_reset_write_mds(pgio); - return; - -out_pnfs: - pnfs_set_lo_fail(pgio->pg_lseg); - pnfs_put_lseg(pgio->pg_lseg); - pgio->pg_lseg = NULL; } static unsigned int diff --git a/fs/nfs/flexfilelayout/flexfilelayout.h b/fs/nfs/flexfilelayout/flexfilelayout.h index 1bcdb15d0c41..3ee0c9fcea76 100644 --- a/fs/nfs/flexfilelayout/flexfilelayout.h +++ b/fs/nfs/flexfilelayout/flexfilelayout.h @@ -84,7 +84,6 @@ struct nfs4_ff_layout_mirror { struct nfs4_ff_layoutstat read_stat; struct nfs4_ff_layoutstat write_stat; ktime_t start_time; - ktime_t last_report_time; u32 report_interval; }; @@ -101,6 +100,7 @@ struct nfs4_flexfile_layout { struct pnfs_ds_commit_info commit_info; struct list_head mirrors; struct list_head error_list; /* nfs4_ff_layout_ds_err */ + ktime_t last_report_time; /* Layoutstat report times */ }; static inline struct nfs4_flexfile_layout * diff --git a/fs/nfs/flexfilelayout/flexfilelayoutdev.c b/fs/nfs/flexfilelayout/flexfilelayoutdev.c index 0aa36be71fce..f7a3f6b05369 100644 --- a/fs/nfs/flexfilelayout/flexfilelayoutdev.c +++ b/fs/nfs/flexfilelayout/flexfilelayoutdev.c @@ -17,8 +17,8 @@ #define NFSDBG_FACILITY NFSDBG_PNFS_LD -static unsigned int dataserver_timeo = NFS4_DEF_DS_TIMEO; -static unsigned int dataserver_retrans = NFS4_DEF_DS_RETRANS; +static unsigned int dataserver_timeo = NFS_DEF_TCP_RETRANS; +static unsigned int dataserver_retrans; void nfs4_ff_layout_put_deviceid(struct nfs4_ff_layout_ds *mirror_ds) { @@ -379,7 +379,7 @@ nfs4_ff_layout_prepare_ds(struct pnfs_layout_segment *lseg, u32 ds_idx, devid = &mirror->mirror_ds->id_node; if (ff_layout_test_devid_unavailable(devid)) - goto out; + goto out_fail; ds = mirror->mirror_ds->ds; /* matching smp_wmb() in _nfs4_pnfs_v3/4_ds_connect */ @@ -405,15 +405,16 @@ nfs4_ff_layout_prepare_ds(struct pnfs_layout_segment *lseg, u32 ds_idx, mirror->mirror_ds->ds_versions[0].rsize = max_payload; if (mirror->mirror_ds->ds_versions[0].wsize > max_payload) mirror->mirror_ds->ds_versions[0].wsize = max_payload; - } else { - ff_layout_track_ds_error(FF_LAYOUT_FROM_HDR(lseg->pls_layout), - mirror, lseg->pls_range.offset, - lseg->pls_range.length, NFS4ERR_NXIO, - OP_ILLEGAL, GFP_NOIO); - if (fail_return || !ff_layout_has_available_ds(lseg)) - pnfs_error_mark_layout_for_return(ino, lseg); - ds = NULL; + goto out; } + ff_layout_track_ds_error(FF_LAYOUT_FROM_HDR(lseg->pls_layout), + mirror, lseg->pls_range.offset, + lseg->pls_range.length, NFS4ERR_NXIO, + OP_ILLEGAL, GFP_NOIO); +out_fail: + if (fail_return || !ff_layout_has_available_ds(lseg)) + pnfs_error_mark_layout_for_return(ino, lseg); + ds = NULL; out: return ds; } diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 7ce5e023c3c3..74935a19e4bf 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -58,6 +58,9 @@ struct nfs_clone_mount { */ #define NFS_UNSPEC_PORT (-1) +#define NFS_UNSPEC_RETRANS (UINT_MAX) +#define NFS_UNSPEC_TIMEO (UINT_MAX) + /* * Maximum number of pages that readdir can use for creating * a vmapped array of pages. @@ -156,7 +159,7 @@ struct nfs_client *nfs_get_client(const struct nfs_client_initdata *, int nfs_probe_fsinfo(struct nfs_server *server, struct nfs_fh *, struct nfs_fattr *); void nfs_server_insert_lists(struct nfs_server *); void nfs_server_remove_lists(struct nfs_server *); -void nfs_init_timeout_values(struct rpc_timeout *, int, unsigned int, unsigned int); +void nfs_init_timeout_values(struct rpc_timeout *to, int proto, int timeo, int retrans); int nfs_init_server_rpcclient(struct nfs_server *, const struct rpc_timeout *t, rpc_authflavor_t); struct nfs_server *nfs_alloc_server(void); diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c index 6f4752734804..64b43b4ad9dd 100644 --- a/fs/nfs/nfs42proc.c +++ b/fs/nfs/nfs42proc.c @@ -318,10 +318,22 @@ static void nfs42_layoutstat_prepare(struct rpc_task *task, void *calldata) { struct nfs42_layoutstat_data *data = calldata; - struct nfs_server *server = NFS_SERVER(data->args.inode); + struct inode *inode = data->inode; + struct nfs_server *server = NFS_SERVER(inode); + struct pnfs_layout_hdr *lo; + spin_lock(&inode->i_lock); + lo = NFS_I(inode)->layout; + if (!pnfs_layout_is_valid(lo)) { + spin_unlock(&inode->i_lock); + rpc_exit(task, 0); + return; + } + nfs4_stateid_copy(&data->args.stateid, &lo->plh_stateid); + spin_unlock(&inode->i_lock); nfs41_setup_sequence(nfs4_get_session(server), &data->args.seq_args, &data->res.seq_res, task); + } static void @@ -341,11 +353,11 @@ nfs42_layoutstat_done(struct rpc_task *task, void *calldata) case -NFS4ERR_ADMIN_REVOKED: case -NFS4ERR_DELEG_REVOKED: case -NFS4ERR_STALE_STATEID: - case -NFS4ERR_OLD_STATEID: case -NFS4ERR_BAD_STATEID: spin_lock(&inode->i_lock); lo = NFS_I(inode)->layout; - if (lo && nfs4_stateid_match(&data->args.stateid, + if (pnfs_layout_is_valid(lo) && + nfs4_stateid_match(&data->args.stateid, &lo->plh_stateid)) { LIST_HEAD(head); @@ -359,11 +371,23 @@ nfs42_layoutstat_done(struct rpc_task *task, void *calldata) } else spin_unlock(&inode->i_lock); break; + case -NFS4ERR_OLD_STATEID: + spin_lock(&inode->i_lock); + lo = NFS_I(inode)->layout; + if (pnfs_layout_is_valid(lo) && + nfs4_stateid_match_other(&data->args.stateid, + &lo->plh_stateid)) { + /* Do we need to delay before resending? */ + if (!nfs4_stateid_is_newer(&lo->plh_stateid, + &data->args.stateid)) + rpc_delay(task, HZ); + rpc_restart_call_prepare(task); + } + spin_unlock(&inode->i_lock); + break; case -ENOTSUPP: case -EOPNOTSUPP: NFS_SERVER(inode)->caps &= ~NFS_CAP_LAYOUTSTATS; - default: - break; } dprintk("%s server returns %d\n", __func__, task->tk_status); diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c index 8d7d08d4f95f..cd3b7cfdde16 100644 --- a/fs/nfs/nfs4client.c +++ b/fs/nfs/nfs4client.c @@ -817,6 +817,11 @@ static int nfs4_set_client(struct nfs_server *server, goto error; } + if (server->nfs_client == clp) { + error = -ELOOP; + goto error; + } + /* * Query for the lease time on clientid setup or renewal * diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 1949bbd806eb..a9dec32ba9ba 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -634,15 +634,11 @@ out_sleep: } EXPORT_SYMBOL_GPL(nfs40_setup_sequence); -static int nfs40_sequence_done(struct rpc_task *task, - struct nfs4_sequence_res *res) +static void nfs40_sequence_free_slot(struct nfs4_sequence_res *res) { struct nfs4_slot *slot = res->sr_slot; struct nfs4_slot_table *tbl; - if (slot == NULL) - goto out; - tbl = slot->table; spin_lock(&tbl->slot_tbl_lock); if (!nfs41_wake_and_assign_slot(tbl, slot)) @@ -650,7 +646,13 @@ static int nfs40_sequence_done(struct rpc_task *task, spin_unlock(&tbl->slot_tbl_lock); res->sr_slot = NULL; -out: +} + +static int nfs40_sequence_done(struct rpc_task *task, + struct nfs4_sequence_res *res) +{ + if (res->sr_slot != NULL) + nfs40_sequence_free_slot(res); return 1; } @@ -666,6 +668,11 @@ static void nfs41_sequence_free_slot(struct nfs4_sequence_res *res) tbl = slot->table; session = tbl->session; + /* Bump the slot sequence number */ + if (slot->seq_done) + slot->seq_nr++; + slot->seq_done = 0; + spin_lock(&tbl->slot_tbl_lock); /* Be nice to the server: try to ensure that the last transmitted * value for highest_user_slotid <= target_highest_slotid @@ -686,9 +693,12 @@ out_unlock: res->sr_slot = NULL; if (send_new_highest_used_slotid) nfs41_notify_server(session->clp); + if (waitqueue_active(&tbl->slot_waitq)) + wake_up_all(&tbl->slot_waitq); } -int nfs41_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *res) +static int nfs41_sequence_process(struct rpc_task *task, + struct nfs4_sequence_res *res) { struct nfs4_session *session; struct nfs4_slot *slot = res->sr_slot; @@ -714,7 +724,7 @@ int nfs41_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *res) switch (res->sr_status) { case 0: /* Update the slot's sequence and clientid lease timer */ - ++slot->seq_nr; + slot->seq_done = 1; clp = session->clp; do_renew_lease(clp, res->sr_timestamp); /* Check sequence flags */ @@ -769,16 +779,16 @@ int nfs41_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *res) goto retry_nowait; default: /* Just update the slot sequence no. */ - ++slot->seq_nr; + slot->seq_done = 1; } out: /* The session may be reset by one of the error handlers. */ dprintk("%s: Error %d free the slot \n", __func__, res->sr_status); - nfs41_sequence_free_slot(res); out_noaction: return ret; retry_nowait: if (rpc_restart_call_prepare(task)) { + nfs41_sequence_free_slot(res); task->tk_status = 0; ret = 0; } @@ -789,8 +799,37 @@ out_retry: rpc_delay(task, NFS4_POLL_RETRY_MAX); return 0; } + +int nfs41_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *res) +{ + if (!nfs41_sequence_process(task, res)) + return 0; + if (res->sr_slot != NULL) + nfs41_sequence_free_slot(res); + return 1; + +} EXPORT_SYMBOL_GPL(nfs41_sequence_done); +static int nfs4_sequence_process(struct rpc_task *task, struct nfs4_sequence_res *res) +{ + if (res->sr_slot == NULL) + return 1; + if (res->sr_slot->table->session != NULL) + return nfs41_sequence_process(task, res); + return nfs40_sequence_done(task, res); +} + +static void nfs4_sequence_free_slot(struct nfs4_sequence_res *res) +{ + if (res->sr_slot != NULL) { + if (res->sr_slot->table->session != NULL) + nfs41_sequence_free_slot(res); + else + nfs40_sequence_free_slot(res); + } +} + int nfs4_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *res) { if (res->sr_slot == NULL) @@ -920,6 +959,17 @@ static int nfs4_setup_sequence(const struct nfs_server *server, args, res, task); } +static int nfs4_sequence_process(struct rpc_task *task, struct nfs4_sequence_res *res) +{ + return nfs40_sequence_done(task, res); +} + +static void nfs4_sequence_free_slot(struct nfs4_sequence_res *res) +{ + if (res->sr_slot != NULL) + nfs40_sequence_free_slot(res); +} + int nfs4_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *res) { @@ -1197,6 +1247,7 @@ static void nfs4_opendata_free(struct kref *kref) struct super_block *sb = p->dentry->d_sb; nfs_free_seqid(p->o_arg.seqid); + nfs4_sequence_free_slot(&p->o_res.seq_res); if (p->state != NULL) nfs4_put_open_state(p->state); nfs4_put_state_owner(p->owner); @@ -1656,9 +1707,14 @@ err: static struct nfs4_state * nfs4_opendata_to_nfs4_state(struct nfs4_opendata *data) { + struct nfs4_state *ret; + if (data->o_arg.claim == NFS4_OPEN_CLAIM_PREVIOUS) - return _nfs4_opendata_reclaim_to_nfs4_state(data); - return _nfs4_opendata_to_nfs4_state(data); + ret =_nfs4_opendata_reclaim_to_nfs4_state(data); + else + ret = _nfs4_opendata_to_nfs4_state(data); + nfs4_sequence_free_slot(&data->o_res.seq_res); + return ret; } static struct nfs_open_context *nfs4_state_find_open_context(struct nfs4_state *state) @@ -2056,7 +2112,7 @@ static void nfs4_open_done(struct rpc_task *task, void *calldata) data->rpc_status = task->tk_status; - if (!nfs4_sequence_done(task, &data->o_res.seq_res)) + if (!nfs4_sequence_process(task, &data->o_res.seq_res)) return; if (task->tk_status == 0) { @@ -7514,12 +7570,20 @@ static int _nfs4_proc_create_session(struct nfs_client *clp, status = rpc_call_sync(session->clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT); trace_nfs4_create_session(clp, status); + switch (status) { + case -NFS4ERR_STALE_CLIENTID: + case -NFS4ERR_DELAY: + case -ETIMEDOUT: + case -EACCES: + case -EAGAIN: + goto out; + }; + + clp->cl_seqid++; if (!status) { /* Verify the session's negotiated channel_attrs values */ status = nfs4_verify_channel_attrs(&args, &res); /* Increment the clientid slot sequence id */ - if (clp->cl_seqid == res.seqid) - clp->cl_seqid++; if (status) goto out; nfs4_update_session(session, &res); @@ -7864,7 +7928,7 @@ static void nfs4_layoutget_done(struct rpc_task *task, void *calldata) struct nfs4_layoutget *lgp = calldata; dprintk("--> %s\n", __func__); - nfs41_sequence_done(task, &lgp->res.seq_res); + nfs41_sequence_process(task, &lgp->res.seq_res); dprintk("<-- %s\n", __func__); } @@ -8080,6 +8144,7 @@ nfs4_proc_layoutget(struct nfs4_layoutget *lgp, long *timeout, gfp_t gfp_flags) /* if layoutp->len is 0, nfs4_layoutget_prepare called rpc_exit */ if (status == 0 && lgp->res.layoutp->len) lseg = pnfs_layout_process(lgp); + nfs4_sequence_free_slot(&lgp->res.seq_res); rpc_put_task(task); dprintk("<-- %s status=%d\n", __func__, status); if (status) @@ -8106,7 +8171,7 @@ static void nfs4_layoutreturn_done(struct rpc_task *task, void *calldata) dprintk("--> %s\n", __func__); - if (!nfs41_sequence_done(task, &lrp->res.seq_res)) + if (!nfs41_sequence_process(task, &lrp->res.seq_res)) return; server = NFS_SERVER(lrp->args.inode); @@ -8118,6 +8183,7 @@ static void nfs4_layoutreturn_done(struct rpc_task *task, void *calldata) case -NFS4ERR_DELAY: if (nfs4_async_handle_error(task, server, NULL, NULL) != -EAGAIN) break; + nfs4_sequence_free_slot(&lrp->res.seq_res); rpc_restart_call_prepare(task); return; } @@ -8132,12 +8198,16 @@ static void nfs4_layoutreturn_release(void *calldata) dprintk("--> %s\n", __func__); spin_lock(&lo->plh_inode->i_lock); - pnfs_mark_matching_lsegs_invalid(lo, &freeme, &lrp->args.range, - be32_to_cpu(lrp->args.stateid.seqid)); - if (lrp->res.lrs_present && pnfs_layout_is_valid(lo)) + if (lrp->res.lrs_present) { + pnfs_mark_matching_lsegs_invalid(lo, &freeme, + &lrp->args.range, + be32_to_cpu(lrp->args.stateid.seqid)); pnfs_set_layout_stateid(lo, &lrp->res.stateid, true); + } else + pnfs_mark_layout_stateid_invalid(lo, &freeme); pnfs_clear_layoutreturn_waitbit(lo); spin_unlock(&lo->plh_inode->i_lock); + nfs4_sequence_free_slot(&lrp->res.seq_res); pnfs_free_lseg_list(&freeme); pnfs_put_layout_hdr(lrp->args.layout); nfs_iput_and_deactive(lrp->inode); diff --git a/fs/nfs/nfs4session.c b/fs/nfs/nfs4session.c index 332d06e64fa9..b62973045a3e 100644 --- a/fs/nfs/nfs4session.c +++ b/fs/nfs/nfs4session.c @@ -28,6 +28,7 @@ static void nfs4_init_slot_table(struct nfs4_slot_table *tbl, const char *queue) tbl->highest_used_slotid = NFS4_NO_SLOT; spin_lock_init(&tbl->slot_tbl_lock); rpc_init_priority_wait_queue(&tbl->slot_tbl_waitq, queue); + init_waitqueue_head(&tbl->slot_waitq); init_completion(&tbl->complete); } @@ -172,6 +173,58 @@ struct nfs4_slot *nfs4_lookup_slot(struct nfs4_slot_table *tbl, u32 slotid) return ERR_PTR(-E2BIG); } +static int nfs4_slot_get_seqid(struct nfs4_slot_table *tbl, u32 slotid, + u32 *seq_nr) + __must_hold(&tbl->slot_tbl_lock) +{ + struct nfs4_slot *slot; + + slot = nfs4_lookup_slot(tbl, slotid); + if (IS_ERR(slot)) + return PTR_ERR(slot); + *seq_nr = slot->seq_nr; + return 0; +} + +/* + * nfs4_slot_seqid_in_use - test if a slot sequence id is still in use + * + * Given a slot table, slot id and sequence number, determine if the + * RPC call in question is still in flight. This function is mainly + * intended for use by the callback channel. + */ +static bool nfs4_slot_seqid_in_use(struct nfs4_slot_table *tbl, + u32 slotid, u32 seq_nr) +{ + u32 cur_seq; + bool ret = false; + + spin_lock(&tbl->slot_tbl_lock); + if (nfs4_slot_get_seqid(tbl, slotid, &cur_seq) == 0 && + cur_seq == seq_nr && test_bit(slotid, tbl->used_slots)) + ret = true; + spin_unlock(&tbl->slot_tbl_lock); + return ret; +} + +/* + * nfs4_slot_wait_on_seqid - wait until a slot sequence id is complete + * + * Given a slot table, slot id and sequence number, wait until the + * corresponding RPC call completes. This function is mainly + * intended for use by the callback channel. + */ +int nfs4_slot_wait_on_seqid(struct nfs4_slot_table *tbl, + u32 slotid, u32 seq_nr, + unsigned long timeout) +{ + if (wait_event_timeout(tbl->slot_waitq, + !nfs4_slot_seqid_in_use(tbl, slotid, seq_nr), + timeout) == 0) + return -ETIMEDOUT; + return 0; +} + /* * nfs4_alloc_slot - efficiently look for a free slot * diff --git a/fs/nfs/nfs4session.h b/fs/nfs/nfs4session.h index 5b51298d1d03..f703b755351b 100644 --- a/fs/nfs/nfs4session.h +++ b/fs/nfs/nfs4session.h @@ -21,7 +21,8 @@ struct nfs4_slot { unsigned long generation; u32 slot_nr; u32 seq_nr; - unsigned int interrupted : 1; + unsigned int interrupted : 1, + seq_done : 1; }; /* Sessions */ @@ -36,6 +37,7 @@ struct nfs4_slot_table { unsigned long used_slots[SLOT_TABLE_SZ]; /* used/unused bitmap */ spinlock_t slot_tbl_lock; struct rpc_wait_queue slot_tbl_waitq; /* allocators may wait here */ + wait_queue_head_t slot_waitq; /* Completion wait on slot */ u32 max_slots; /* # slots in table */ u32 max_slotid; /* Max allowed slotid value */ u32 highest_used_slotid; /* sent to server on each SEQ. @@ -78,6 +80,9 @@ extern int nfs4_setup_slot_table(struct nfs4_slot_table *tbl, extern void nfs4_shutdown_slot_table(struct nfs4_slot_table *tbl); extern struct nfs4_slot *nfs4_alloc_slot(struct nfs4_slot_table *tbl); extern struct nfs4_slot *nfs4_lookup_slot(struct nfs4_slot_table *tbl, u32 slotid); +extern int nfs4_slot_wait_on_seqid(struct nfs4_slot_table *tbl, + u32 slotid, u32 seq_nr, + unsigned long timeout); extern bool nfs4_try_to_lock_slot(struct nfs4_slot_table *tbl, struct nfs4_slot *slot); extern void nfs4_free_slot(struct nfs4_slot_table *tbl, struct nfs4_slot *slot); extern void nfs4_slot_tbl_drain_complete(struct nfs4_slot_table *tbl); diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 70806cae0d36..2c93a85eda51 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -365,7 +365,8 @@ pnfs_layout_remove_lseg(struct pnfs_layout_hdr *lo, /* Matched by pnfs_get_layout_hdr in pnfs_layout_insert_lseg */ atomic_dec(&lo->plh_refcount); if (list_empty(&lo->plh_segs)) { - set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags); + if (atomic_read(&lo->plh_outstanding) == 0) + set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags); clear_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags); } rpc_wake_up(&NFS_SERVER(inode)->roc_rpcwaitq); @@ -768,17 +769,32 @@ pnfs_destroy_all_layouts(struct nfs_client *clp) pnfs_destroy_layouts_byclid(clp, false); } +static void +pnfs_clear_layoutreturn_info(struct pnfs_layout_hdr *lo) +{ + lo->plh_return_iomode = 0; + lo->plh_return_seq = 0; + clear_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags); +} + /* update lo->plh_stateid with new if is more recent */ void pnfs_set_layout_stateid(struct pnfs_layout_hdr *lo, const nfs4_stateid *new, bool update_barrier) { u32 oldseq, newseq, new_barrier = 0; - bool invalid = !pnfs_layout_is_valid(lo); oldseq = be32_to_cpu(lo->plh_stateid.seqid); newseq = be32_to_cpu(new->seqid); - if (invalid || pnfs_seqid_is_newer(newseq, oldseq)) { + + if (!pnfs_layout_is_valid(lo)) { + nfs4_stateid_copy(&lo->plh_stateid, new); + lo->plh_barrier = newseq; + pnfs_clear_layoutreturn_info(lo); + clear_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags); + return; + } + if (pnfs_seqid_is_newer(newseq, oldseq)) { nfs4_stateid_copy(&lo->plh_stateid, new); /* * Because of wraparound, we want to keep the barrier @@ -790,7 +806,7 @@ pnfs_set_layout_stateid(struct pnfs_layout_hdr *lo, const nfs4_stateid *new, new_barrier = be32_to_cpu(new->seqid); else if (new_barrier == 0) return; - if (invalid || pnfs_seqid_is_newer(new_barrier, lo->plh_barrier)) + if (pnfs_seqid_is_newer(new_barrier, lo->plh_barrier)) lo->plh_barrier = new_barrier; } @@ -886,19 +902,14 @@ void pnfs_clear_layoutreturn_waitbit(struct pnfs_layout_hdr *lo) rpc_wake_up(&NFS_SERVER(lo->plh_inode)->roc_rpcwaitq); } -static void -pnfs_clear_layoutreturn_info(struct pnfs_layout_hdr *lo) -{ - lo->plh_return_iomode = 0; - lo->plh_return_seq = 0; - clear_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags); -} - static bool pnfs_prepare_layoutreturn(struct pnfs_layout_hdr *lo, nfs4_stateid *stateid, enum pnfs_iomode *iomode) { + /* Serialise LAYOUTGET/LAYOUTRETURN */ + if (atomic_read(&lo->plh_outstanding) != 0) + return false; if (test_and_set_bit(NFS_LAYOUT_RETURN, &lo->plh_flags)) return false; pnfs_get_layout_hdr(lo); @@ -1555,6 +1566,7 @@ pnfs_update_layout(struct inode *ino, } lookup_again: + nfs4_client_recover_expired_lease(clp); first = false; spin_lock(&ino->i_lock); lo = pnfs_find_alloc_layout(ino, ctx, gfp_flags); @@ -1797,16 +1809,11 @@ pnfs_layout_process(struct nfs4_layoutget *lgp) */ pnfs_mark_layout_stateid_invalid(lo, &free_me); - nfs4_stateid_copy(&lo->plh_stateid, &res->stateid); - lo->plh_barrier = be32_to_cpu(res->stateid.seqid); + pnfs_set_layout_stateid(lo, &res->stateid, true); } pnfs_get_lseg(lseg); pnfs_layout_insert_lseg(lo, lseg, &free_me); - if (!pnfs_layout_is_valid(lo)) { - pnfs_clear_layoutreturn_info(lo); - clear_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags); - } if (res->return_on_close) @@ -2510,7 +2517,6 @@ pnfs_report_layoutstat(struct inode *inode, gfp_t gfp_flags) data->args.fh = NFS_FH(inode); data->args.inode = inode; - nfs4_stateid_copy(&data->args.stateid, &hdr->plh_stateid); status = ld->prepare_layoutstats(&data->args); if (status) goto out_free; diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 18d446e1a82b..d39601381adf 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -923,6 +923,8 @@ static struct nfs_parsed_mount_data *nfs_alloc_parsed_mount_data(void) data = kzalloc(sizeof(*data), GFP_KERNEL); if (data) { + data->timeo = NFS_UNSPEC_TIMEO; + data->retrans = NFS_UNSPEC_RETRANS; data->acregmin = NFS_DEF_ACREGMIN; data->acregmax = NFS_DEF_ACREGMAX; data->acdirmin = NFS_DEF_ACDIRMIN; @@ -1189,6 +1191,19 @@ static int nfs_get_option_ul(substring_t args[], unsigned long *option) return rc; } +static int nfs_get_option_ul_bound(substring_t args[], unsigned long *option, + unsigned long l_bound, unsigned long u_bound) +{ + int ret; + + ret = nfs_get_option_ul(args, option); + if (ret != 0) + return ret; + if (*option < l_bound || *option > u_bound) + return -ERANGE; + return 0; +} + /* * Error-check and convert a string of mount options from user space into * a data structure. The whole mount string is processed; bad options are @@ -1352,12 +1367,12 @@ static int nfs_parse_mount_options(char *raw, mnt->bsize = option; break; case Opt_timeo: - if (nfs_get_option_ul(args, &option) || option == 0) + if (nfs_get_option_ul_bound(args, &option, 1, INT_MAX)) goto out_invalid_value; mnt->timeo = option; break; case Opt_retrans: - if (nfs_get_option_ul(args, &option) || option == 0) + if (nfs_get_option_ul_bound(args, &option, 0, INT_MAX)) goto out_invalid_value; mnt->retrans = option; break; diff --git a/fs/notify/fanotify/fanotify.c b/fs/notify/fanotify/fanotify.c index d2f97ecca6a5..e0e5f7c3c99f 100644 --- a/fs/notify/fanotify/fanotify.c +++ b/fs/notify/fanotify/fanotify.c @@ -67,18 +67,7 @@ static int fanotify_get_response(struct fsnotify_group *group, pr_debug("%s: group=%p event=%p\n", __func__, group, event); - wait_event(group->fanotify_data.access_waitq, event->response || - atomic_read(&group->fanotify_data.bypass_perm)); - - if (!event->response) { /* bypass_perm set */ - /* - * Event was canceled because group is being destroyed. Remove - * it from group's event list because we are responsible for - * freeing the permission event. - */ - fsnotify_remove_event(group, &event->fae.fse); - return 0; - } + wait_event(group->fanotify_data.access_waitq, event->response); /* userspace responded, convert to something usable */ switch (event->response) { diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c index 8e8e6bcd1d43..a64313868d3a 100644 --- a/fs/notify/fanotify/fanotify_user.c +++ b/fs/notify/fanotify/fanotify_user.c @@ -358,16 +358,20 @@ static int fanotify_release(struct inode *ignored, struct file *file) #ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS struct fanotify_perm_event_info *event, *next; + struct fsnotify_event *fsn_event; /* - * There may be still new events arriving in the notification queue - * but since userspace cannot use fanotify fd anymore, no event can - * enter or leave access_list by now. + * Stop new events from arriving in the notification queue. since + * userspace cannot use fanotify fd anymore, no event can enter or + * leave access_list by now either. */ - spin_lock(&group->fanotify_data.access_lock); - - atomic_inc(&group->fanotify_data.bypass_perm); + fsnotify_group_stop_queueing(group); + /* + * Process all permission events on access_list and notification queue + * and simulate reply from userspace. + */ + spin_lock(&group->fanotify_data.access_lock); list_for_each_entry_safe(event, next, &group->fanotify_data.access_list, fae.fse.list) { pr_debug("%s: found group=%p event=%p\n", __func__, group, @@ -379,12 +383,21 @@ static int fanotify_release(struct inode *ignored, struct file *file) spin_unlock(&group->fanotify_data.access_lock); /* - * Since bypass_perm is set, newly queued events will not wait for - * access response. Wake up the already sleeping ones now. - * synchronize_srcu() in fsnotify_destroy_group() will wait for all - * processes sleeping in fanotify_handle_event() waiting for access - * response and thus also for all permission events to be freed. + * Destroy all non-permission events. For permission events just + * dequeue them and set the response. They will be freed once the + * response is consumed and fanotify_get_response() returns. */ + mutex_lock(&group->notification_mutex); + while (!fsnotify_notify_queue_is_empty(group)) { + fsn_event = fsnotify_remove_first_event(group); + if (!(fsn_event->mask & FAN_ALL_PERM_EVENTS)) + fsnotify_destroy_event(group, fsn_event); + else + FANOTIFY_PE(fsn_event)->response = FAN_ALLOW; + } + mutex_unlock(&group->notification_mutex); + + /* Response for all permission events it set, wakeup waiters */ wake_up(&group->fanotify_data.access_waitq); #endif @@ -755,7 +768,6 @@ SYSCALL_DEFINE2(fanotify_init, unsigned int, flags, unsigned int, event_f_flags) spin_lock_init(&group->fanotify_data.access_lock); init_waitqueue_head(&group->fanotify_data.access_waitq); INIT_LIST_HEAD(&group->fanotify_data.access_list); - atomic_set(&group->fanotify_data.bypass_perm, 0); #endif switch (flags & FAN_ALL_CLASS_BITS) { case FAN_CLASS_NOTIF: diff --git a/fs/notify/group.c b/fs/notify/group.c index 3e2dd85be5dd..b47f7cfdcaa4 100644 --- a/fs/notify/group.c +++ b/fs/notify/group.c @@ -40,6 +40,17 @@ static void fsnotify_final_destroy_group(struct fsnotify_group *group) } /* + * Stop queueing new events for this group. Once this function returns + * fsnotify_add_event() will not add any new events to the group's queue. + */ +void fsnotify_group_stop_queueing(struct fsnotify_group *group) +{ + mutex_lock(&group->notification_mutex); + group->shutdown = true; + mutex_unlock(&group->notification_mutex); +} + +/* * Trying to get rid of a group. Remove all marks, flush all events and release * the group reference. * Note that another thread calling fsnotify_clear_marks_by_group() may still @@ -47,6 +58,14 @@ static void fsnotify_final_destroy_group(struct fsnotify_group *group) */ void fsnotify_destroy_group(struct fsnotify_group *group) { + /* + * Stop queueing new events. The code below is careful enough to not + * require this but fanotify needs to stop queuing events even before + * fsnotify_destroy_group() is called and this makes the other callers + * of fsnotify_destroy_group() to see the same behavior. + */ + fsnotify_group_stop_queueing(group); + /* clear all inode marks for this group, attach them to destroy_list */ fsnotify_detach_group_marks(group); diff --git a/fs/notify/notification.c b/fs/notify/notification.c index a95d8e037aeb..e455e83ceeeb 100644 --- a/fs/notify/notification.c +++ b/fs/notify/notification.c @@ -82,7 +82,8 @@ void fsnotify_destroy_event(struct fsnotify_group *group, * Add an event to the group notification queue. The group can later pull this * event off the queue to deal with. The function returns 0 if the event was * added to the queue, 1 if the event was merged with some other queued event, - * 2 if the queue of events has overflown. + * 2 if the event was not queued - either the queue of events has overflown + * or the group is shutting down. */ int fsnotify_add_event(struct fsnotify_group *group, struct fsnotify_event *event, @@ -96,6 +97,11 @@ int fsnotify_add_event(struct fsnotify_group *group, mutex_lock(&group->notification_mutex); + if (group->shutdown) { + mutex_unlock(&group->notification_mutex); + return 2; + } + if (group->q_len >= group->max_events) { ret = 2; /* Queue overflow event only if it isn't already queued */ @@ -126,21 +132,6 @@ queue: } /* - * Remove @event from group's notification queue. It is the responsibility of - * the caller to destroy the event. - */ -void fsnotify_remove_event(struct fsnotify_group *group, - struct fsnotify_event *event) -{ - mutex_lock(&group->notification_mutex); - if (!list_empty(&event->list)) { - list_del_init(&event->list); - group->q_len--; - } - mutex_unlock(&group->notification_mutex); -} - -/* * Remove and return the first event from the notification list. It is the * responsibility of the caller to destroy the obtained event */ diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c index 7dabbc31060e..f165f867f332 100644 --- a/fs/ocfs2/alloc.c +++ b/fs/ocfs2/alloc.c @@ -5922,7 +5922,6 @@ bail: } static int ocfs2_replay_truncate_records(struct ocfs2_super *osb, - handle_t *handle, struct inode *data_alloc_inode, struct buffer_head *data_alloc_bh) { @@ -5935,11 +5934,19 @@ static int ocfs2_replay_truncate_records(struct ocfs2_super *osb, struct ocfs2_truncate_log *tl; struct inode *tl_inode = osb->osb_tl_inode; struct buffer_head *tl_bh = osb->osb_tl_bh; + handle_t *handle; di = (struct ocfs2_dinode *) tl_bh->b_data; tl = &di->id2.i_dealloc; i = le16_to_cpu(tl->tl_used) - 1; while (i >= 0) { + handle = ocfs2_start_trans(osb, OCFS2_TRUNCATE_LOG_FLUSH_ONE_REC); + if (IS_ERR(handle)) { + status = PTR_ERR(handle); + mlog_errno(status); + goto bail; + } + /* Caller has given us at least enough credits to * update the truncate log dinode */ status = ocfs2_journal_access_di(handle, INODE_CACHE(tl_inode), tl_bh, @@ -5974,12 +5981,7 @@ static int ocfs2_replay_truncate_records(struct ocfs2_super *osb, } } - status = ocfs2_extend_trans(handle, - OCFS2_TRUNCATE_LOG_FLUSH_ONE_REC); - if (status < 0) { - mlog_errno(status); - goto bail; - } + ocfs2_commit_trans(osb, handle); i--; } @@ -5994,7 +5996,6 @@ int __ocfs2_flush_truncate_log(struct ocfs2_super *osb) { int status; unsigned int num_to_flush; - handle_t *handle; struct inode *tl_inode = osb->osb_tl_inode; struct inode *data_alloc_inode = NULL; struct buffer_head *tl_bh = osb->osb_tl_bh; @@ -6038,21 +6039,11 @@ int __ocfs2_flush_truncate_log(struct ocfs2_super *osb) goto out_mutex; } - handle = ocfs2_start_trans(osb, OCFS2_TRUNCATE_LOG_FLUSH_ONE_REC); - if (IS_ERR(handle)) { - status = PTR_ERR(handle); - mlog_errno(status); - goto out_unlock; - } - - status = ocfs2_replay_truncate_records(osb, handle, data_alloc_inode, + status = ocfs2_replay_truncate_records(osb, data_alloc_inode, data_alloc_bh); if (status < 0) mlog_errno(status); - ocfs2_commit_trans(osb, handle); - -out_unlock: brelse(data_alloc_bh); ocfs2_inode_unlock(data_alloc_inode, 1); @@ -6413,43 +6404,34 @@ static int ocfs2_free_cached_blocks(struct ocfs2_super *osb, goto out_mutex; } - handle = ocfs2_start_trans(osb, OCFS2_SUBALLOC_FREE); - if (IS_ERR(handle)) { - ret = PTR_ERR(handle); - mlog_errno(ret); - goto out_unlock; - } - while (head) { if (head->free_bg) bg_blkno = head->free_bg; else bg_blkno = ocfs2_which_suballoc_group(head->free_blk, head->free_bit); + handle = ocfs2_start_trans(osb, OCFS2_SUBALLOC_FREE); + if (IS_ERR(handle)) { + ret = PTR_ERR(handle); + mlog_errno(ret); + goto out_unlock; + } + trace_ocfs2_free_cached_blocks( (unsigned long long)head->free_blk, head->free_bit); ret = ocfs2_free_suballoc_bits(handle, inode, di_bh, head->free_bit, bg_blkno, 1); - if (ret) { + if (ret) mlog_errno(ret); - goto out_journal; - } - ret = ocfs2_extend_trans(handle, OCFS2_SUBALLOC_FREE); - if (ret) { - mlog_errno(ret); - goto out_journal; - } + ocfs2_commit_trans(osb, handle); tmp = head; head = head->free_next; kfree(tmp); } -out_journal: - ocfs2_commit_trans(osb, handle); - out_unlock: ocfs2_inode_unlock(inode, 1); brelse(di_bh); diff --git a/fs/ocfs2/cluster/tcp_internal.h b/fs/ocfs2/cluster/tcp_internal.h index 94b18369b1cc..b95e7df5b76a 100644 --- a/fs/ocfs2/cluster/tcp_internal.h +++ b/fs/ocfs2/cluster/tcp_internal.h @@ -44,9 +44,6 @@ * version here in tcp_internal.h should not need to be bumped for * filesystem locking changes. * - * New in version 12 - * - Negotiate hb timeout when storage is down. - * * New in version 11 * - Negotiation of filesystem locking in the dlm join. * @@ -78,7 +75,7 @@ * - full 64 bit i_size in the metadata lock lvbs * - introduction of "rw" lock and pushing meta/data locking down */ -#define O2NET_PROTOCOL_VERSION 12ULL +#define O2NET_PROTOCOL_VERSION 11ULL struct o2net_handshake { __be64 protocol_version; __be64 connector_id; diff --git a/fs/ocfs2/dlm/dlmconvert.c b/fs/ocfs2/dlm/dlmconvert.c index cdeafb4e7ed6..0bb128659d4b 100644 --- a/fs/ocfs2/dlm/dlmconvert.c +++ b/fs/ocfs2/dlm/dlmconvert.c @@ -268,7 +268,6 @@ enum dlm_status dlmconvert_remote(struct dlm_ctxt *dlm, struct dlm_lock *lock, int flags, int type) { enum dlm_status status; - u8 old_owner = res->owner; mlog(0, "type=%d, convert_type=%d, busy=%d\n", lock->ml.type, lock->ml.convert_type, res->state & DLM_LOCK_RES_IN_PROGRESS); @@ -335,7 +334,6 @@ enum dlm_status dlmconvert_remote(struct dlm_ctxt *dlm, spin_lock(&res->spinlock); res->state &= ~DLM_LOCK_RES_IN_PROGRESS; - lock->convert_pending = 0; /* if it failed, move it back to granted queue. * if master returns DLM_NORMAL and then down before sending ast, * it may have already been moved to granted queue, reset to @@ -344,12 +342,14 @@ enum dlm_status dlmconvert_remote(struct dlm_ctxt *dlm, if (status != DLM_NOTQUEUED) dlm_error(status); dlm_revert_pending_convert(res, lock); - } else if ((res->state & DLM_LOCK_RES_RECOVERING) || - (old_owner != res->owner)) { - mlog(0, "res %.*s is in recovering or has been recovered.\n", - res->lockname.len, res->lockname.name); + } else if (!lock->convert_pending) { + mlog(0, "%s: res %.*s, owner died and lock has been moved back " + "to granted list, retry convert.\n", + dlm->name, res->lockname.len, res->lockname.name); status = DLM_RECOVERING; } + + lock->convert_pending = 0; bail: spin_unlock(&res->spinlock); diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 4e7b0dc22450..0b055bfb8e86 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -1506,7 +1506,8 @@ static int ocfs2_zero_partial_clusters(struct inode *inode, u64 start, u64 len) { int ret = 0; - u64 tmpend, end = start + len; + u64 tmpend = 0; + u64 end = start + len; struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); unsigned int csize = osb->s_clustersize; handle_t *handle; @@ -1538,18 +1539,31 @@ static int ocfs2_zero_partial_clusters(struct inode *inode, } /* - * We want to get the byte offset of the end of the 1st cluster. + * If start is on a cluster boundary and end is somewhere in another + * cluster, we have not COWed the cluster starting at start, unless + * end is also within the same cluster. So, in this case, we skip this + * first call to ocfs2_zero_range_for_truncate() truncate and move on + * to the next one. */ - tmpend = (u64)osb->s_clustersize + (start & ~(osb->s_clustersize - 1)); - if (tmpend > end) - tmpend = end; + if ((start & (csize - 1)) != 0) { + /* + * We want to get the byte offset of the end of the 1st + * cluster. + */ + tmpend = (u64)osb->s_clustersize + + (start & ~(osb->s_clustersize - 1)); + if (tmpend > end) + tmpend = end; - trace_ocfs2_zero_partial_clusters_range1((unsigned long long)start, - (unsigned long long)tmpend); + trace_ocfs2_zero_partial_clusters_range1( + (unsigned long long)start, + (unsigned long long)tmpend); - ret = ocfs2_zero_range_for_truncate(inode, handle, start, tmpend); - if (ret) - mlog_errno(ret); + ret = ocfs2_zero_range_for_truncate(inode, handle, start, + tmpend); + if (ret) + mlog_errno(ret); + } if (tmpend < end) { /* diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c index ea47120a85ff..6ad3533940ba 100644 --- a/fs/ocfs2/suballoc.c +++ b/fs/ocfs2/suballoc.c @@ -1199,14 +1199,24 @@ retry: inode_unlock((*ac)->ac_inode); ret = ocfs2_try_to_free_truncate_log(osb, bits_wanted); - if (ret == 1) + if (ret == 1) { + iput((*ac)->ac_inode); + (*ac)->ac_inode = NULL; goto retry; + } if (ret < 0) mlog_errno(ret); inode_lock((*ac)->ac_inode); - ocfs2_inode_lock((*ac)->ac_inode, NULL, 1); + ret = ocfs2_inode_lock((*ac)->ac_inode, NULL, 1); + if (ret < 0) { + mlog_errno(ret); + inode_unlock((*ac)->ac_inode); + iput((*ac)->ac_inode); + (*ac)->ac_inode = NULL; + goto bail; + } } if (status < 0) { if (status != -ENOSPC) diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c index 54e5d6681786..43fdc2765aea 100644 --- a/fs/overlayfs/copy_up.c +++ b/fs/overlayfs/copy_up.c @@ -80,6 +80,8 @@ int ovl_copy_xattr(struct dentry *old, struct dentry *new) } for (name = buf; name < (buf + list_size); name += strlen(name) + 1) { + if (ovl_is_private_xattr(name)) + continue; retry: size = vfs_getxattr(old, name, value, value_size); if (size == -ERANGE) diff --git a/fs/overlayfs/dir.c b/fs/overlayfs/dir.c index 12bcd07b9e32..1560fdc09a5f 100644 --- a/fs/overlayfs/dir.c +++ b/fs/overlayfs/dir.c @@ -12,6 +12,8 @@ #include <linux/xattr.h> #include <linux/security.h> #include <linux/cred.h> +#include <linux/posix_acl.h> +#include <linux/posix_acl_xattr.h> #include "overlayfs.h" void ovl_cleanup(struct inode *wdir, struct dentry *wdentry) @@ -186,6 +188,9 @@ static int ovl_create_upper(struct dentry *dentry, struct inode *inode, struct dentry *newdentry; int err; + if (!hardlink && !IS_POSIXACL(udir)) + stat->mode &= ~current_umask(); + inode_lock_nested(udir, I_MUTEX_PARENT); newdentry = lookup_one_len(dentry->d_name.name, upperdir, dentry->d_name.len); @@ -335,6 +340,32 @@ out_free: return ret; } +static int ovl_set_upper_acl(struct dentry *upperdentry, const char *name, + const struct posix_acl *acl) +{ + void *buffer; + size_t size; + int err; + + if (!IS_ENABLED(CONFIG_FS_POSIX_ACL) || !acl) + return 0; + + size = posix_acl_to_xattr(NULL, acl, NULL, 0); + buffer = kmalloc(size, GFP_KERNEL); + if (!buffer) + return -ENOMEM; + + size = posix_acl_to_xattr(&init_user_ns, acl, buffer, size); + err = size; + if (err < 0) + goto out_free; + + err = vfs_setxattr(upperdentry, name, buffer, size, XATTR_CREATE); +out_free: + kfree(buffer); + return err; +} + static int ovl_create_over_whiteout(struct dentry *dentry, struct inode *inode, struct kstat *stat, const char *link, struct dentry *hardlink) @@ -346,10 +377,18 @@ static int ovl_create_over_whiteout(struct dentry *dentry, struct inode *inode, struct dentry *upper; struct dentry *newdentry; int err; + struct posix_acl *acl, *default_acl; if (WARN_ON(!workdir)) return -EROFS; + if (!hardlink) { + err = posix_acl_create(dentry->d_parent->d_inode, + &stat->mode, &default_acl, &acl); + if (err) + return err; + } + err = ovl_lock_rename_workdir(workdir, upperdir); if (err) goto out; @@ -384,6 +423,17 @@ static int ovl_create_over_whiteout(struct dentry *dentry, struct inode *inode, if (err) goto out_cleanup; } + if (!hardlink) { + err = ovl_set_upper_acl(newdentry, XATTR_NAME_POSIX_ACL_ACCESS, + acl); + if (err) + goto out_cleanup; + + err = ovl_set_upper_acl(newdentry, XATTR_NAME_POSIX_ACL_DEFAULT, + default_acl); + if (err) + goto out_cleanup; + } if (!hardlink && S_ISDIR(stat->mode)) { err = ovl_set_opaque(newdentry); @@ -410,6 +460,10 @@ out_dput: out_unlock: unlock_rename(workdir, upperdir); out: + if (!hardlink) { + posix_acl_release(acl); + posix_acl_release(default_acl); + } return err; out_cleanup: @@ -950,9 +1004,9 @@ const struct inode_operations ovl_dir_inode_operations = { .permission = ovl_permission, .getattr = ovl_dir_getattr, .setxattr = generic_setxattr, - .getxattr = ovl_getxattr, + .getxattr = generic_getxattr, .listxattr = ovl_listxattr, - .removexattr = ovl_removexattr, + .removexattr = generic_removexattr, .get_acl = ovl_get_acl, .update_time = ovl_update_time, }; diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c index 1b885c156028..c75625c1efa3 100644 --- a/fs/overlayfs/inode.c +++ b/fs/overlayfs/inode.c @@ -10,6 +10,7 @@ #include <linux/fs.h> #include <linux/slab.h> #include <linux/xattr.h> +#include <linux/posix_acl.h> #include "overlayfs.h" static int ovl_copy_up_truncate(struct dentry *dentry) @@ -191,32 +192,44 @@ static int ovl_readlink(struct dentry *dentry, char __user *buf, int bufsiz) return err; } -static bool ovl_is_private_xattr(const char *name) +bool ovl_is_private_xattr(const char *name) { -#define OVL_XATTR_PRE_NAME OVL_XATTR_PREFIX "." - return strncmp(name, OVL_XATTR_PRE_NAME, - sizeof(OVL_XATTR_PRE_NAME) - 1) == 0; + return strncmp(name, OVL_XATTR_PREFIX, + sizeof(OVL_XATTR_PREFIX) - 1) == 0; } -int ovl_setxattr(struct dentry *dentry, struct inode *inode, - const char *name, const void *value, - size_t size, int flags) +int ovl_xattr_set(struct dentry *dentry, const char *name, const void *value, + size_t size, int flags) { int err; - struct dentry *upperdentry; + struct path realpath; + enum ovl_path_type type = ovl_path_real(dentry, &realpath); const struct cred *old_cred; err = ovl_want_write(dentry); if (err) goto out; + if (!value && !OVL_TYPE_UPPER(type)) { + err = vfs_getxattr(realpath.dentry, name, NULL, 0); + if (err < 0) + goto out_drop_write; + } + err = ovl_copy_up(dentry); if (err) goto out_drop_write; - upperdentry = ovl_dentry_upper(dentry); + if (!OVL_TYPE_UPPER(type)) + ovl_path_upper(dentry, &realpath); + old_cred = ovl_override_creds(dentry->d_sb); - err = vfs_setxattr(upperdentry, name, value, size, flags); + if (value) + err = vfs_setxattr(realpath.dentry, name, value, size, flags); + else { + WARN_ON(flags != XATTR_REPLACE); + err = vfs_removexattr(realpath.dentry, name); + } revert_creds(old_cred); out_drop_write: @@ -225,16 +238,13 @@ out: return err; } -ssize_t ovl_getxattr(struct dentry *dentry, struct inode *inode, - const char *name, void *value, size_t size) +int ovl_xattr_get(struct dentry *dentry, const char *name, + void *value, size_t size) { struct dentry *realdentry = ovl_dentry_real(dentry); ssize_t res; const struct cred *old_cred; - if (ovl_is_private_xattr(name)) - return -ENODATA; - old_cred = ovl_override_creds(dentry->d_sb); res = vfs_getxattr(realdentry, name, value, size); revert_creds(old_cred); @@ -245,7 +255,8 @@ ssize_t ovl_listxattr(struct dentry *dentry, char *list, size_t size) { struct dentry *realdentry = ovl_dentry_real(dentry); ssize_t res; - int off; + size_t len; + char *s; const struct cred *old_cred; old_cred = ovl_override_creds(dentry->d_sb); @@ -255,73 +266,39 @@ ssize_t ovl_listxattr(struct dentry *dentry, char *list, size_t size) return res; /* filter out private xattrs */ - for (off = 0; off < res;) { - char *s = list + off; - size_t slen = strlen(s) + 1; + for (s = list, len = res; len;) { + size_t slen = strnlen(s, len) + 1; - BUG_ON(off + slen > res); + /* underlying fs providing us with an broken xattr list? */ + if (WARN_ON(slen > len)) + return -EIO; + len -= slen; if (ovl_is_private_xattr(s)) { res -= slen; - memmove(s, s + slen, res - off); + memmove(s, s + slen, len); } else { - off += slen; + s += slen; } } return res; } -int ovl_removexattr(struct dentry *dentry, const char *name) -{ - int err; - struct path realpath; - enum ovl_path_type type = ovl_path_real(dentry, &realpath); - const struct cred *old_cred; - - err = ovl_want_write(dentry); - if (err) - goto out; - - err = -ENODATA; - if (ovl_is_private_xattr(name)) - goto out_drop_write; - - if (!OVL_TYPE_UPPER(type)) { - err = vfs_getxattr(realpath.dentry, name, NULL, 0); - if (err < 0) - goto out_drop_write; - - err = ovl_copy_up(dentry); - if (err) - goto out_drop_write; - - ovl_path_upper(dentry, &realpath); - } - - old_cred = ovl_override_creds(dentry->d_sb); - err = vfs_removexattr(realpath.dentry, name); - revert_creds(old_cred); -out_drop_write: - ovl_drop_write(dentry); -out: - return err; -} - struct posix_acl *ovl_get_acl(struct inode *inode, int type) { struct inode *realinode = ovl_inode_real(inode, NULL); const struct cred *old_cred; struct posix_acl *acl; - if (!IS_POSIXACL(realinode)) + if (!IS_ENABLED(CONFIG_FS_POSIX_ACL) || !IS_POSIXACL(realinode)) return NULL; if (!realinode->i_op->get_acl) return NULL; old_cred = ovl_override_creds(inode->i_sb); - acl = realinode->i_op->get_acl(realinode, type); + acl = get_acl(realinode, type); revert_creds(old_cred); return acl; @@ -391,9 +368,9 @@ static const struct inode_operations ovl_file_inode_operations = { .permission = ovl_permission, .getattr = ovl_getattr, .setxattr = generic_setxattr, - .getxattr = ovl_getxattr, + .getxattr = generic_getxattr, .listxattr = ovl_listxattr, - .removexattr = ovl_removexattr, + .removexattr = generic_removexattr, .get_acl = ovl_get_acl, .update_time = ovl_update_time, }; @@ -404,9 +381,9 @@ static const struct inode_operations ovl_symlink_inode_operations = { .readlink = ovl_readlink, .getattr = ovl_getattr, .setxattr = generic_setxattr, - .getxattr = ovl_getxattr, + .getxattr = generic_getxattr, .listxattr = ovl_listxattr, - .removexattr = ovl_removexattr, + .removexattr = generic_removexattr, .update_time = ovl_update_time, }; @@ -415,6 +392,9 @@ static void ovl_fill_inode(struct inode *inode, umode_t mode) inode->i_ino = get_next_ino(); inode->i_mode = mode; inode->i_flags |= S_NOCMTIME; +#ifdef CONFIG_FS_POSIX_ACL + inode->i_acl = inode->i_default_acl = ACL_DONT_CACHE; +#endif mode &= S_IFMT; switch (mode) { diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h index e4f5c9536bfe..5813ccff8cd9 100644 --- a/fs/overlayfs/overlayfs.h +++ b/fs/overlayfs/overlayfs.h @@ -24,8 +24,8 @@ enum ovl_path_type { (OVL_TYPE_MERGE(type) || !OVL_TYPE_UPPER(type)) -#define OVL_XATTR_PREFIX XATTR_TRUSTED_PREFIX "overlay" -#define OVL_XATTR_OPAQUE OVL_XATTR_PREFIX ".opaque" +#define OVL_XATTR_PREFIX XATTR_TRUSTED_PREFIX "overlay." +#define OVL_XATTR_OPAQUE OVL_XATTR_PREFIX "opaque" #define OVL_ISUPPER_MASK 1UL @@ -179,20 +179,21 @@ int ovl_check_empty_dir(struct dentry *dentry, struct list_head *list); void ovl_cleanup_whiteouts(struct dentry *upper, struct list_head *list); void ovl_cache_free(struct list_head *list); int ovl_check_d_type_supported(struct path *realpath); +void ovl_workdir_cleanup(struct inode *dir, struct vfsmount *mnt, + struct dentry *dentry, int level); /* inode.c */ int ovl_setattr(struct dentry *dentry, struct iattr *attr); int ovl_permission(struct inode *inode, int mask); -int ovl_setxattr(struct dentry *dentry, struct inode *inode, - const char *name, const void *value, - size_t size, int flags); -ssize_t ovl_getxattr(struct dentry *dentry, struct inode *inode, - const char *name, void *value, size_t size); +int ovl_xattr_set(struct dentry *dentry, const char *name, const void *value, + size_t size, int flags); +int ovl_xattr_get(struct dentry *dentry, const char *name, + void *value, size_t size); ssize_t ovl_listxattr(struct dentry *dentry, char *list, size_t size); -int ovl_removexattr(struct dentry *dentry, const char *name); struct posix_acl *ovl_get_acl(struct inode *inode, int type); int ovl_open_maybe_copy_up(struct dentry *dentry, unsigned int file_flags); int ovl_update_time(struct inode *inode, struct timespec *ts, int flags); +bool ovl_is_private_xattr(const char *name); struct inode *ovl_new_inode(struct super_block *sb, umode_t mode); struct inode *ovl_get_inode(struct super_block *sb, struct inode *realinode); diff --git a/fs/overlayfs/readdir.c b/fs/overlayfs/readdir.c index cf37fc76fc9f..f241b4ee3d8a 100644 --- a/fs/overlayfs/readdir.c +++ b/fs/overlayfs/readdir.c @@ -248,7 +248,7 @@ static inline int ovl_dir_read(struct path *realpath, err = rdd->err; } while (!err && rdd->count); - if (!err && rdd->first_maybe_whiteout) + if (!err && rdd->first_maybe_whiteout && rdd->dentry) err = ovl_check_whiteouts(realpath->dentry, rdd); fput(realfile); @@ -606,3 +606,64 @@ int ovl_check_d_type_supported(struct path *realpath) return rdd.d_type_supported; } + +static void ovl_workdir_cleanup_recurse(struct path *path, int level) +{ + int err; + struct inode *dir = path->dentry->d_inode; + LIST_HEAD(list); + struct ovl_cache_entry *p; + struct ovl_readdir_data rdd = { + .ctx.actor = ovl_fill_merge, + .dentry = NULL, + .list = &list, + .root = RB_ROOT, + .is_lowest = false, + }; + + err = ovl_dir_read(path, &rdd); + if (err) + goto out; + + inode_lock_nested(dir, I_MUTEX_PARENT); + list_for_each_entry(p, &list, l_node) { + struct dentry *dentry; + + if (p->name[0] == '.') { + if (p->len == 1) + continue; + if (p->len == 2 && p->name[1] == '.') + continue; + } + dentry = lookup_one_len(p->name, path->dentry, p->len); + if (IS_ERR(dentry)) + continue; + if (dentry->d_inode) + ovl_workdir_cleanup(dir, path->mnt, dentry, level); + dput(dentry); + } + inode_unlock(dir); +out: + ovl_cache_free(&list); +} + +void ovl_workdir_cleanup(struct inode *dir, struct vfsmount *mnt, + struct dentry *dentry, int level) +{ + int err; + + if (!d_is_dir(dentry) || level > 1) { + ovl_cleanup(dir, dentry); + return; + } + + err = ovl_do_rmdir(dir, dentry); + if (err) { + struct path path = { .mnt = mnt, .dentry = dentry }; + + inode_unlock(dir); + ovl_workdir_cleanup_recurse(&path, level + 1); + inode_lock_nested(dir, I_MUTEX_PARENT); + ovl_cleanup(dir, dentry); + } +} diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c index 4036132842b5..e2a94a26767b 100644 --- a/fs/overlayfs/super.c +++ b/fs/overlayfs/super.c @@ -814,6 +814,10 @@ retry: struct kstat stat = { .mode = S_IFDIR | 0, }; + struct iattr attr = { + .ia_valid = ATTR_MODE, + .ia_mode = stat.mode, + }; if (work->d_inode) { err = -EEXIST; @@ -821,7 +825,7 @@ retry: goto out_dput; retried = true; - ovl_cleanup(dir, work); + ovl_workdir_cleanup(dir, mnt, work, 0); dput(work); goto retry; } @@ -829,6 +833,21 @@ retry: err = ovl_create_real(dir, work, &stat, NULL, NULL, true); if (err) goto out_dput; + + err = vfs_removexattr(work, XATTR_NAME_POSIX_ACL_DEFAULT); + if (err && err != -ENODATA && err != -EOPNOTSUPP) + goto out_dput; + + err = vfs_removexattr(work, XATTR_NAME_POSIX_ACL_ACCESS); + if (err && err != -ENODATA && err != -EOPNOTSUPP) + goto out_dput; + + /* Clear any inherited mode bits */ + inode_lock(work->d_inode); + err = notify_change(work, &attr, NULL); + inode_unlock(work->d_inode); + if (err) + goto out_dput; } out_unlock: inode_unlock(dir); @@ -967,10 +986,19 @@ static unsigned int ovl_split_lowerdirs(char *str) return ctr; } -static int ovl_posix_acl_xattr_set(const struct xattr_handler *handler, - struct dentry *dentry, struct inode *inode, - const char *name, const void *value, - size_t size, int flags) +static int __maybe_unused +ovl_posix_acl_xattr_get(const struct xattr_handler *handler, + struct dentry *dentry, struct inode *inode, + const char *name, void *buffer, size_t size) +{ + return ovl_xattr_get(dentry, handler->name, buffer, size); +} + +static int __maybe_unused +ovl_posix_acl_xattr_set(const struct xattr_handler *handler, + struct dentry *dentry, struct inode *inode, + const char *name, const void *value, + size_t size, int flags) { struct dentry *workdir = ovl_workdir(dentry); struct inode *realinode = ovl_inode_real(inode, NULL); @@ -998,19 +1026,22 @@ static int ovl_posix_acl_xattr_set(const struct xattr_handler *handler, posix_acl_release(acl); - return ovl_setxattr(dentry, inode, handler->name, value, size, flags); + err = ovl_xattr_set(dentry, handler->name, value, size, flags); + if (!err) + ovl_copyattr(ovl_inode_real(inode, NULL), inode); + + return err; out_acl_release: posix_acl_release(acl); return err; } -static int ovl_other_xattr_set(const struct xattr_handler *handler, - struct dentry *dentry, struct inode *inode, - const char *name, const void *value, - size_t size, int flags) +static int ovl_own_xattr_get(const struct xattr_handler *handler, + struct dentry *dentry, struct inode *inode, + const char *name, void *buffer, size_t size) { - return ovl_setxattr(dentry, inode, name, value, size, flags); + return -EPERM; } static int ovl_own_xattr_set(const struct xattr_handler *handler, @@ -1021,42 +1052,59 @@ static int ovl_own_xattr_set(const struct xattr_handler *handler, return -EPERM; } -static const struct xattr_handler ovl_posix_acl_access_xattr_handler = { +static int ovl_other_xattr_get(const struct xattr_handler *handler, + struct dentry *dentry, struct inode *inode, + const char *name, void *buffer, size_t size) +{ + return ovl_xattr_get(dentry, name, buffer, size); +} + +static int ovl_other_xattr_set(const struct xattr_handler *handler, + struct dentry *dentry, struct inode *inode, + const char *name, const void *value, + size_t size, int flags) +{ + return ovl_xattr_set(dentry, name, value, size, flags); +} + +static const struct xattr_handler __maybe_unused +ovl_posix_acl_access_xattr_handler = { .name = XATTR_NAME_POSIX_ACL_ACCESS, .flags = ACL_TYPE_ACCESS, + .get = ovl_posix_acl_xattr_get, .set = ovl_posix_acl_xattr_set, }; -static const struct xattr_handler ovl_posix_acl_default_xattr_handler = { +static const struct xattr_handler __maybe_unused +ovl_posix_acl_default_xattr_handler = { .name = XATTR_NAME_POSIX_ACL_DEFAULT, .flags = ACL_TYPE_DEFAULT, + .get = ovl_posix_acl_xattr_get, .set = ovl_posix_acl_xattr_set, }; static const struct xattr_handler ovl_own_xattr_handler = { .prefix = OVL_XATTR_PREFIX, + .get = ovl_own_xattr_get, .set = ovl_own_xattr_set, }; static const struct xattr_handler ovl_other_xattr_handler = { .prefix = "", /* catch all */ + .get = ovl_other_xattr_get, .set = ovl_other_xattr_set, }; static const struct xattr_handler *ovl_xattr_handlers[] = { +#ifdef CONFIG_FS_POSIX_ACL &ovl_posix_acl_access_xattr_handler, &ovl_posix_acl_default_xattr_handler, +#endif &ovl_own_xattr_handler, &ovl_other_xattr_handler, NULL }; -static const struct xattr_handler *ovl_xattr_noacl_handlers[] = { - &ovl_own_xattr_handler, - &ovl_other_xattr_handler, - NULL, -}; - static int ovl_fill_super(struct super_block *sb, void *data, int silent) { struct path upperpath = { NULL, NULL }; @@ -1132,7 +1180,7 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent) err = -EINVAL; stacklen = ovl_split_lowerdirs(lowertmp); if (stacklen > OVL_MAX_STACK) { - pr_err("overlayfs: too many lower directries, limit is %d\n", + pr_err("overlayfs: too many lower directories, limit is %d\n", OVL_MAX_STACK); goto out_free_lowertmp; } else if (!ufs->config.upperdir && stacklen == 1) { @@ -1269,10 +1317,7 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent) sb->s_magic = OVERLAYFS_SUPER_MAGIC; sb->s_op = &ovl_super_operations; - if (IS_ENABLED(CONFIG_FS_POSIX_ACL)) - sb->s_xattr = ovl_xattr_handlers; - else - sb->s_xattr = ovl_xattr_noacl_handlers; + sb->s_xattr = ovl_xattr_handlers; sb->s_root = root_dentry; sb->s_fs_info = ufs; sb->s_flags |= MS_POSIXACL; diff --git a/fs/proc/base.c b/fs/proc/base.c index 54e270262979..ac0df4dde823 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1556,18 +1556,13 @@ static const struct file_operations proc_pid_set_comm_operations = { static int proc_exe_link(struct dentry *dentry, struct path *exe_path) { struct task_struct *task; - struct mm_struct *mm; struct file *exe_file; task = get_proc_task(d_inode(dentry)); if (!task) return -ENOENT; - mm = get_task_mm(task); + exe_file = get_task_exe_file(task); put_task_struct(task); - if (!mm) - return -ENOENT; - exe_file = get_mm_exe_file(mm); - mmput(mm); if (exe_file) { *exe_path = exe_file->f_path; path_get(&exe_file->f_path); diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c index a939f5ed7f89..5c89a07e3d7f 100644 --- a/fs/proc/kcore.c +++ b/fs/proc/kcore.c @@ -430,6 +430,7 @@ static void elf_kcore_store_hdr(char *bufp, int nphdr, int dataoff) static ssize_t read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos) { + char *buf = file->private_data; ssize_t acc = 0; size_t size, tsz; size_t elf_buflen; @@ -500,23 +501,20 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos) if (clear_user(buffer, tsz)) return -EFAULT; } else if (is_vmalloc_or_module_addr((void *)start)) { - char * elf_buf; - - elf_buf = kzalloc(tsz, GFP_KERNEL); - if (!elf_buf) - return -ENOMEM; - vread(elf_buf, (char *)start, tsz); + vread(buf, (char *)start, tsz); /* we have to zero-fill user buffer even if no read */ - if (copy_to_user(buffer, elf_buf, tsz)) { - kfree(elf_buf); + if (copy_to_user(buffer, buf, tsz)) return -EFAULT; - } - kfree(elf_buf); } else { if (kern_addr_valid(start)) { unsigned long n; - n = copy_to_user(buffer, (char *)start, tsz); + /* + * Using bounce buffer to bypass the + * hardened user copy kernel text checks. + */ + memcpy(buf, (char *) start, tsz); + n = copy_to_user(buffer, buf, tsz); /* * We cannot distinguish between fault on source * and fault on destination. When this happens @@ -549,6 +547,11 @@ static int open_kcore(struct inode *inode, struct file *filp) { if (!capable(CAP_SYS_RAWIO)) return -EPERM; + + filp->private_data = kmalloc(PAGE_SIZE, GFP_KERNEL); + if (!filp->private_data) + return -ENOMEM; + if (kcore_need_update) kcore_update_ram(); if (i_size_read(inode) != proc_root_kcore->size) { @@ -559,10 +562,16 @@ static int open_kcore(struct inode *inode, struct file *filp) return 0; } +static int release_kcore(struct inode *inode, struct file *file) +{ + kfree(file->private_data); + return 0; +} static const struct file_operations proc_kcore_operations = { .read = read_kcore, .open = open_kcore, + .release = release_kcore, .llseek = default_llseek, }; diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 187d84ef9de9..f6fa99eca515 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -581,6 +581,8 @@ static void smaps_pmd_entry(pmd_t *pmd, unsigned long addr, mss->anonymous_thp += HPAGE_PMD_SIZE; else if (PageSwapBacked(page)) mss->shmem_thp += HPAGE_PMD_SIZE; + else if (is_zone_device_page(page)) + /* pass */; else VM_BUG_ON_PAGE(1, page); smaps_account(mss, page, true, pmd_young(*pmd), pmd_dirty(*pmd)); diff --git a/fs/ramfs/file-mmu.c b/fs/ramfs/file-mmu.c index 183a212694bf..12af0490322f 100644 --- a/fs/ramfs/file-mmu.c +++ b/fs/ramfs/file-mmu.c @@ -27,9 +27,17 @@ #include <linux/fs.h> #include <linux/mm.h> #include <linux/ramfs.h> +#include <linux/sched.h> #include "internal.h" +static unsigned long ramfs_mmu_get_unmapped_area(struct file *file, + unsigned long addr, unsigned long len, unsigned long pgoff, + unsigned long flags) +{ + return current->mm->get_unmapped_area(file, addr, len, pgoff, flags); +} + const struct file_operations ramfs_file_operations = { .read_iter = generic_file_read_iter, .write_iter = generic_file_write_iter, @@ -38,6 +46,7 @@ const struct file_operations ramfs_file_operations = { .splice_read = generic_file_splice_read, .splice_write = iter_file_splice_write, .llseek = generic_file_llseek, + .get_unmapped_area = ramfs_mmu_get_unmapped_area, }; const struct inode_operations ramfs_file_inode_operations = { diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c index f35523d4fa3a..b803213d1307 100644 --- a/fs/sysfs/file.c +++ b/fs/sysfs/file.c @@ -114,9 +114,15 @@ static ssize_t sysfs_kf_read(struct kernfs_open_file *of, char *buf, * If buf != of->prealloc_buf, we don't know how * large it is, so cannot safely pass it to ->show */ - if (pos || WARN_ON_ONCE(buf != of->prealloc_buf)) + if (WARN_ON_ONCE(buf != of->prealloc_buf)) return 0; len = ops->show(kobj, of->kn->priv, buf); + if (pos) { + if (len <= pos) + return 0; + len -= pos; + memmove(buf, buf + pos, len); + } return min(count, len); } diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c index 3dd8f1d54498..05b5243d89f6 100644 --- a/fs/xfs/libxfs/xfs_alloc.c +++ b/fs/xfs/libxfs/xfs_alloc.c @@ -2278,6 +2278,8 @@ xfs_alloc_log_agf( offsetof(xfs_agf_t, agf_btreeblks), offsetof(xfs_agf_t, agf_uuid), offsetof(xfs_agf_t, agf_rmap_blocks), + /* needed so that we don't log the whole rest of the structure: */ + offsetof(xfs_agf_t, agf_spare64), sizeof(xfs_agf_t) }; diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c index b5c213a051cd..08569792fe20 100644 --- a/fs/xfs/libxfs/xfs_btree.c +++ b/fs/xfs/libxfs/xfs_btree.c @@ -1814,6 +1814,10 @@ xfs_btree_lookup( XFS_BTREE_STATS_INC(cur, lookup); + /* No such thing as a zero-level tree. */ + if (cur->bc_nlevels == 0) + return -EFSCORRUPTED; + block = NULL; keyno = 0; @@ -4554,15 +4558,22 @@ xfs_btree_simple_query_range( if (error) goto out; + /* Nothing? See if there's anything to the right. */ + if (!stat) { + error = xfs_btree_increment(cur, 0, &stat); + if (error) + goto out; + } + while (stat) { /* Find the record. */ error = xfs_btree_get_rec(cur, &recp, &stat); if (error || !stat) break; - cur->bc_ops->init_high_key_from_rec(&rec_key, recp); /* Skip if high_key(rec) < low_key. */ if (firstrec) { + cur->bc_ops->init_high_key_from_rec(&rec_key, recp); firstrec = false; diff = cur->bc_ops->diff_two_keys(cur, low_key, &rec_key); @@ -4571,6 +4582,7 @@ xfs_btree_simple_query_range( } /* Stop if high_key < low_key(rec). */ + cur->bc_ops->init_key_from_rec(&rec_key, recp); diff = cur->bc_ops->diff_two_keys(cur, &rec_key, high_key); if (diff > 0) break; diff --git a/fs/xfs/libxfs/xfs_defer.c b/fs/xfs/libxfs/xfs_defer.c index 054a2032fdb3..c221d0ecd52e 100644 --- a/fs/xfs/libxfs/xfs_defer.c +++ b/fs/xfs/libxfs/xfs_defer.c @@ -194,7 +194,7 @@ xfs_defer_trans_abort( /* Abort intent items. */ list_for_each_entry(dfp, &dop->dop_pending, dfp_list) { trace_xfs_defer_pending_abort(tp->t_mountp, dfp); - if (dfp->dfp_committed) + if (!dfp->dfp_done) dfp->dfp_type->abort_intent(dfp->dfp_intent); } @@ -290,7 +290,6 @@ xfs_defer_finish( struct xfs_defer_pending *dfp; struct list_head *li; struct list_head *n; - void *done_item = NULL; void *state; int error = 0; void (*cleanup_fn)(struct xfs_trans *, void *, int); @@ -309,19 +308,11 @@ xfs_defer_finish( if (error) goto out; - /* Mark all pending intents as committed. */ - list_for_each_entry_reverse(dfp, &dop->dop_pending, dfp_list) { - if (dfp->dfp_committed) - break; - trace_xfs_defer_pending_commit((*tp)->t_mountp, dfp); - dfp->dfp_committed = true; - } - /* Log an intent-done item for the first pending item. */ dfp = list_first_entry(&dop->dop_pending, struct xfs_defer_pending, dfp_list); trace_xfs_defer_pending_finish((*tp)->t_mountp, dfp); - done_item = dfp->dfp_type->create_done(*tp, dfp->dfp_intent, + dfp->dfp_done = dfp->dfp_type->create_done(*tp, dfp->dfp_intent, dfp->dfp_count); cleanup_fn = dfp->dfp_type->finish_cleanup; @@ -331,7 +322,7 @@ xfs_defer_finish( list_del(li); dfp->dfp_count--; error = dfp->dfp_type->finish_item(*tp, dop, li, - done_item, &state); + dfp->dfp_done, &state); if (error) { /* * Clean up after ourselves and jump out. @@ -428,8 +419,8 @@ xfs_defer_add( dfp = kmem_alloc(sizeof(struct xfs_defer_pending), KM_SLEEP | KM_NOFS); dfp->dfp_type = defer_op_types[type]; - dfp->dfp_committed = false; dfp->dfp_intent = NULL; + dfp->dfp_done = NULL; dfp->dfp_count = 0; INIT_LIST_HEAD(&dfp->dfp_work); list_add_tail(&dfp->dfp_list, &dop->dop_intake); diff --git a/fs/xfs/libxfs/xfs_defer.h b/fs/xfs/libxfs/xfs_defer.h index cc3981c48296..e96533d178cf 100644 --- a/fs/xfs/libxfs/xfs_defer.h +++ b/fs/xfs/libxfs/xfs_defer.h @@ -30,8 +30,8 @@ struct xfs_defer_op_type; struct xfs_defer_pending { const struct xfs_defer_op_type *dfp_type; /* function pointers */ struct list_head dfp_list; /* pending items */ - bool dfp_committed; /* committed trans? */ void *dfp_intent; /* log intent item */ + void *dfp_done; /* log done item */ struct list_head dfp_work; /* work items */ unsigned int dfp_count; /* # extent items */ }; diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h index e6a8bea0f7ba..270fb5cf4fa1 100644 --- a/fs/xfs/libxfs/xfs_format.h +++ b/fs/xfs/libxfs/xfs_format.h @@ -674,7 +674,8 @@ typedef struct xfs_agf { #define XFS_AGF_BTREEBLKS 0x00000800 #define XFS_AGF_UUID 0x00001000 #define XFS_AGF_RMAP_BLOCKS 0x00002000 -#define XFS_AGF_NUM_BITS 14 +#define XFS_AGF_SPARE64 0x00004000 +#define XFS_AGF_NUM_BITS 15 #define XFS_AGF_ALL_BITS ((1 << XFS_AGF_NUM_BITS) - 1) #define XFS_AGF_FLAGS \ @@ -691,7 +692,8 @@ typedef struct xfs_agf { { XFS_AGF_LONGEST, "LONGEST" }, \ { XFS_AGF_BTREEBLKS, "BTREEBLKS" }, \ { XFS_AGF_UUID, "UUID" }, \ - { XFS_AGF_RMAP_BLOCKS, "RMAP_BLOCKS" } + { XFS_AGF_RMAP_BLOCKS, "RMAP_BLOCKS" }, \ + { XFS_AGF_SPARE64, "SPARE64" } /* disk block (xfs_daddr_t) in the AG */ #define XFS_AGF_DADDR(mp) ((xfs_daddr_t)(1 << (mp)->m_sectbb_log)) diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c index 0e3d4f5ec33c..4aecc5fefe96 100644 --- a/fs/xfs/libxfs/xfs_sb.c +++ b/fs/xfs/libxfs/xfs_sb.c @@ -583,7 +583,8 @@ xfs_sb_verify( * Only check the in progress field for the primary superblock as * mkfs.xfs doesn't clear it from secondary superblocks. */ - return xfs_mount_validate_sb(mp, &sb, bp->b_bn == XFS_SB_DADDR, + return xfs_mount_validate_sb(mp, &sb, + bp->b_maps[0].bm_bn == XFS_SB_DADDR, check_version); } diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 607cc29bba21..b5b9bffe3520 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1611,7 +1611,7 @@ xfs_wait_buftarg( */ while (percpu_counter_sum(&btp->bt_io_count)) delay(100); - drain_workqueue(btp->bt_mount->m_buf_workqueue); + flush_workqueue(btp->bt_mount->m_buf_workqueue); /* loop until there is nothing left on the lru list. */ while (list_lru_count(&btp->bt_lru)) { diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index 24ef83ef04de..fd6be45b3a1e 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -1574,9 +1574,16 @@ xfs_fs_fill_super( } } - if (xfs_sb_version_hasrmapbt(&mp->m_sb)) + if (xfs_sb_version_hasrmapbt(&mp->m_sb)) { + if (mp->m_sb.sb_rblocks) { + xfs_alert(mp, + "EXPERIMENTAL reverse mapping btree not compatible with realtime device!"); + error = -EINVAL; + goto out_filestream_unmount; + } xfs_alert(mp, "EXPERIMENTAL reverse mapping btree feature enabled. Use at your own risk!"); + } error = xfs_mountfs(mp); if (error) diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h index 7e88bec3f359..d303a665dba9 100644 --- a/fs/xfs/xfs_trace.h +++ b/fs/xfs/xfs_trace.h @@ -2295,7 +2295,7 @@ DECLARE_EVENT_CLASS(xfs_defer_pending_class, __entry->dev = mp ? mp->m_super->s_dev : 0; __entry->type = dfp->dfp_type->type; __entry->intent = dfp->dfp_intent; - __entry->committed = dfp->dfp_committed; + __entry->committed = dfp->dfp_done != NULL; __entry->nr = dfp->dfp_count; ), TP_printk("dev %d:%d optype %d intent %p committed %d nr %d\n", |