Lines Matching full:fc
135 static void fuse_cleanup_submount_lookup(struct fuse_conn *fc, in fuse_cleanup_submount_lookup() argument
141 fuse_queue_forget(fc, sl->forget, sl->nodeid, 1); in fuse_cleanup_submount_lookup()
156 struct fuse_conn *fc = get_fuse_conn(inode); in fuse_evict_inode() local
161 fuse_queue_forget(fc, fi->forget, fi->nodeid, in fuse_evict_inode()
167 fuse_cleanup_submount_lookup(fc, fi->submount_lookup); in fuse_evict_inode()
204 struct fuse_conn *fc = get_fuse_conn(inode); in fuse_change_attributes_common() local
209 fi->attr_version = atomic64_inc_return(&fc->attr_version); in fuse_change_attributes_common()
217 inode->i_uid = make_kuid(fc->user_ns, attr->uid); in fuse_change_attributes_common()
218 inode->i_gid = make_kgid(fc->user_ns, attr->gid); in fuse_change_attributes_common()
267 if (!fc->default_permissions) in fuse_change_attributes_common()
285 struct fuse_conn *fc = get_fuse_conn(inode); in fuse_get_cache_mask() local
287 if (!fc->writeback_cache || !S_ISREG(inode->i_mode)) in fuse_get_cache_mask()
297 struct fuse_conn *fc = get_fuse_conn(inode); in fuse_change_attributes() local
346 if (!fc->explicit_inval_data) in fuse_change_attributes()
348 } else if (fc->auto_inval_data) { in fuse_change_attributes()
378 struct fuse_conn *fc) in fuse_init_inode() argument
403 if (!fc->posix_acl) in fuse_init_inode()
429 struct fuse_conn *fc = get_fuse_conn_super(sb); in fuse_iget() local
438 if (fc->auto_submounts && (attr->flags & FUSE_ATTR_SUBMOUNT) && in fuse_iget()
446 fuse_init_inode(inode, attr, fc); in fuse_iget()
467 if (!fc->writeback_cache || !S_ISREG(attr->mode)) in fuse_iget()
470 fuse_init_inode(inode, attr, fc); in fuse_iget()
491 struct inode *fuse_ilookup(struct fuse_conn *fc, u64 nodeid, in fuse_ilookup() argument
497 WARN_ON(!rwsem_is_locked(&fc->killsb)); in fuse_ilookup()
498 list_for_each_entry(fm_iter, &fc->mounts, fc_entry) { in fuse_ilookup()
513 int fuse_reverse_inval_inode(struct fuse_conn *fc, u64 nodeid, in fuse_reverse_inval_inode() argument
521 inode = fuse_ilookup(fc, nodeid, NULL); in fuse_reverse_inval_inode()
527 fi->attr_version = atomic64_inc_return(&fc->attr_version); in fuse_reverse_inval_inode()
565 struct fuse_conn *fc = get_fuse_conn_super(sb); in fuse_umount_begin() local
567 if (fc->no_force_umount) in fuse_umount_begin()
570 fuse_abort_conn(fc); in fuse_umount_begin()
579 if (fm->fc->conn_init) { in fuse_send_destroy()
611 if (!fuse_allow_current_process(fm->fc)) { in fuse_statfs()
642 static void fuse_sync_fs_writes(struct fuse_conn *fc) in fuse_sync_fs_writes() argument
648 spin_lock(&fc->lock); in fuse_sync_fs_writes()
649 bucket = rcu_dereference_protected(fc->curr_bucket, 1); in fuse_sync_fs_writes()
654 spin_unlock(&fc->lock); in fuse_sync_fs_writes()
664 rcu_assign_pointer(fc->curr_bucket, new_bucket); in fuse_sync_fs_writes()
665 spin_unlock(&fc->lock); in fuse_sync_fs_writes()
683 struct fuse_conn *fc = fm->fc; in fuse_sync_fs() local
699 if (!fc->sync_fs) in fuse_sync_fs()
702 fuse_sync_fs_writes(fc); in fuse_sync_fs()
714 fc->sync_fs = 0; in fuse_sync_fs()
865 struct fuse_conn *fc = get_fuse_conn_super(sb); in fuse_show_options() local
867 if (fc->legacy_opts_show) { in fuse_show_options()
869 from_kuid_munged(fc->user_ns, fc->user_id)); in fuse_show_options()
871 from_kgid_munged(fc->user_ns, fc->group_id)); in fuse_show_options()
872 if (fc->default_permissions) in fuse_show_options()
874 if (fc->allow_other) in fuse_show_options()
876 if (fc->max_read != ~0) in fuse_show_options()
877 seq_printf(m, ",max_read=%u", fc->max_read); in fuse_show_options()
882 if (fc->dax_mode == FUSE_DAX_ALWAYS) in fuse_show_options()
884 else if (fc->dax_mode == FUSE_DAX_NEVER) in fuse_show_options()
886 else if (fc->dax_mode == FUSE_DAX_INODE_USER) in fuse_show_options()
919 void fuse_conn_init(struct fuse_conn *fc, struct fuse_mount *fm, in fuse_conn_init() argument
923 memset(fc, 0, sizeof(*fc)); in fuse_conn_init()
924 spin_lock_init(&fc->lock); in fuse_conn_init()
925 spin_lock_init(&fc->bg_lock); in fuse_conn_init()
926 init_rwsem(&fc->killsb); in fuse_conn_init()
927 refcount_set(&fc->count, 1); in fuse_conn_init()
928 atomic_set(&fc->dev_count, 1); in fuse_conn_init()
929 init_waitqueue_head(&fc->blocked_waitq); in fuse_conn_init()
930 fuse_iqueue_init(&fc->iq, fiq_ops, fiq_priv); in fuse_conn_init()
931 INIT_LIST_HEAD(&fc->bg_queue); in fuse_conn_init()
932 INIT_LIST_HEAD(&fc->entry); in fuse_conn_init()
933 INIT_LIST_HEAD(&fc->devices); in fuse_conn_init()
934 atomic_set(&fc->num_waiting, 0); in fuse_conn_init()
935 fc->max_background = FUSE_DEFAULT_MAX_BACKGROUND; in fuse_conn_init()
936 fc->congestion_threshold = FUSE_DEFAULT_CONGESTION_THRESHOLD; in fuse_conn_init()
937 atomic64_set(&fc->khctr, 0); in fuse_conn_init()
938 fc->polled_files = RB_ROOT; in fuse_conn_init()
939 fc->blocked = 0; in fuse_conn_init()
940 fc->initialized = 0; in fuse_conn_init()
941 fc->connected = 1; in fuse_conn_init()
942 atomic64_set(&fc->attr_version, 1); in fuse_conn_init()
943 get_random_bytes(&fc->scramble_key, sizeof(fc->scramble_key)); in fuse_conn_init()
944 fc->pid_ns = get_pid_ns(task_active_pid_ns(current)); in fuse_conn_init()
945 fc->user_ns = get_user_ns(user_ns); in fuse_conn_init()
946 fc->max_pages = FUSE_DEFAULT_MAX_PAGES_PER_REQ; in fuse_conn_init()
947 fc->max_pages_limit = FUSE_MAX_MAX_PAGES; in fuse_conn_init()
949 INIT_LIST_HEAD(&fc->mounts); in fuse_conn_init()
950 list_add(&fm->fc_entry, &fc->mounts); in fuse_conn_init()
951 fm->fc = fc; in fuse_conn_init()
957 struct fuse_conn *fc = container_of(p, struct fuse_conn, rcu); in delayed_release() local
959 put_user_ns(fc->user_ns); in delayed_release()
960 fc->release(fc); in delayed_release()
963 void fuse_conn_put(struct fuse_conn *fc) in fuse_conn_put() argument
965 if (refcount_dec_and_test(&fc->count)) { in fuse_conn_put()
966 struct fuse_iqueue *fiq = &fc->iq; in fuse_conn_put()
970 fuse_dax_conn_free(fc); in fuse_conn_put()
973 put_pid_ns(fc->pid_ns); in fuse_conn_put()
974 bucket = rcu_dereference_protected(fc->curr_bucket, 1); in fuse_conn_put()
979 call_rcu(&fc->rcu, delayed_release); in fuse_conn_put()
984 struct fuse_conn *fuse_conn_get(struct fuse_conn *fc) in fuse_conn_get() argument
986 refcount_inc(&fc->count); in fuse_conn_get()
987 return fc; in fuse_conn_get()
1010 struct fuse_conn *fc = get_fuse_conn_super(sb); in fuse_get_dentry() local
1023 if (!fc->export_support) in fuse_get_dentry()
1117 struct fuse_conn *fc = get_fuse_conn(child_inode); in fuse_get_parent() local
1123 if (!fc->export_support) in fuse_get_parent()
1186 static void process_init_limits(struct fuse_conn *fc, struct fuse_init_out *arg) in process_init_limits() argument
1196 spin_lock(&fc->bg_lock); in process_init_limits()
1198 fc->max_background = arg->max_background; in process_init_limits()
1200 if (!cap_sys_admin && fc->max_background > max_user_bgreq) in process_init_limits()
1201 fc->max_background = max_user_bgreq; in process_init_limits()
1204 fc->congestion_threshold = arg->congestion_threshold; in process_init_limits()
1207 fc->congestion_threshold > max_user_congthresh) in process_init_limits()
1208 fc->congestion_threshold = max_user_congthresh; in process_init_limits()
1210 spin_unlock(&fc->bg_lock); in process_init_limits()
1222 struct fuse_conn *fc = fm->fc; in process_init_reply() local
1232 process_init_limits(fc, arg); in process_init_reply()
1242 fc->async_read = 1; in process_init_reply()
1244 fc->no_lock = 1; in process_init_reply()
1247 fc->no_flock = 1; in process_init_reply()
1250 fc->no_flock = 1; in process_init_reply()
1253 fc->atomic_o_trunc = 1; in process_init_reply()
1257 fc->export_support = 1; in process_init_reply()
1260 fc->big_writes = 1; in process_init_reply()
1262 fc->dont_mask = 1; in process_init_reply()
1264 fc->auto_inval_data = 1; in process_init_reply()
1266 fc->explicit_inval_data = 1; in process_init_reply()
1268 fc->do_readdirplus = 1; in process_init_reply()
1270 fc->readdirplus_auto = 1; in process_init_reply()
1273 fc->async_dio = 1; in process_init_reply()
1275 fc->writeback_cache = 1; in process_init_reply()
1277 fc->parallel_dirops = 1; in process_init_reply()
1279 fc->handle_killpriv = 1; in process_init_reply()
1283 fc->default_permissions = 1; in process_init_reply()
1284 fc->posix_acl = 1; in process_init_reply()
1287 fc->cache_symlinks = 1; in process_init_reply()
1289 fc->abort_err = 1; in process_init_reply()
1291 fc->max_pages = in process_init_reply()
1292 min_t(unsigned int, fc->max_pages_limit, in process_init_reply()
1297 !fuse_dax_check_alignment(fc, arg->map_alignment)) { in process_init_reply()
1301 fc->inode_dax = 1; in process_init_reply()
1304 fc->handle_killpriv_v2 = 1; in process_init_reply()
1308 fc->setxattr_ext = 1; in process_init_reply()
1310 fc->init_security = 1; in process_init_reply()
1312 fc->create_supp_group = 1; in process_init_reply()
1314 fc->direct_io_allow_mmap = 1; in process_init_reply()
1316 ra_pages = fc->max_read / PAGE_SIZE; in process_init_reply()
1317 fc->no_lock = 1; in process_init_reply()
1318 fc->no_flock = 1; in process_init_reply()
1323 fc->minor = arg->minor; in process_init_reply()
1324 fc->max_write = arg->minor < 5 ? 4096 : arg->max_write; in process_init_reply()
1325 fc->max_write = max_t(unsigned, 4096, fc->max_write); in process_init_reply()
1326 fc->conn_init = 1; in process_init_reply()
1331 fc->conn_init = 0; in process_init_reply()
1332 fc->conn_error = 1; in process_init_reply()
1335 fuse_set_initialized(fc); in process_init_reply()
1336 wake_up_all(&fc->blocked_waitq); in process_init_reply()
1363 if (fm->fc->dax) in fuse_send_init()
1365 if (fuse_is_inode_dax_mode(fm->fc->dax_mode)) in fuse_send_init()
1368 if (fm->fc->auto_submounts) in fuse_send_init()
1394 void fuse_free_conn(struct fuse_conn *fc) in fuse_free_conn() argument
1396 WARN_ON(!list_empty(&fc->devices)); in fuse_free_conn()
1397 kfree(fc); in fuse_free_conn()
1401 static int fuse_bdi_init(struct fuse_conn *fc, struct super_block *sb) in fuse_bdi_init() argument
1415 err = super_setup_bdi_name(sb, "%u:%u%s", MAJOR(fc->dev), in fuse_bdi_init()
1416 MINOR(fc->dev), suffix); in fuse_bdi_init()
1463 void fuse_dev_install(struct fuse_dev *fud, struct fuse_conn *fc) in fuse_dev_install() argument
1465 fud->fc = fuse_conn_get(fc); in fuse_dev_install()
1466 spin_lock(&fc->lock); in fuse_dev_install()
1467 list_add_tail(&fud->entry, &fc->devices); in fuse_dev_install()
1468 spin_unlock(&fc->lock); in fuse_dev_install()
1472 struct fuse_dev *fuse_dev_alloc_install(struct fuse_conn *fc) in fuse_dev_alloc_install() argument
1480 fuse_dev_install(fud, fc); in fuse_dev_alloc_install()
1487 struct fuse_conn *fc = fud->fc; in fuse_dev_free() local
1489 if (fc) { in fuse_dev_free()
1490 spin_lock(&fc->lock); in fuse_dev_free()
1492 spin_unlock(&fc->lock); in fuse_dev_free()
1494 fuse_conn_put(fc); in fuse_dev_free()
1599 struct fuse_conn *fc = get_fuse_conn(&mp_fi->inode); in fuse_get_tree_submount() local
1607 fm->fc = fuse_conn_get(fc); in fuse_get_tree_submount()
1622 down_write(&fc->killsb); in fuse_get_tree_submount()
1623 list_add_tail(&fm->fc_entry, &fc->mounts); in fuse_get_tree_submount()
1624 up_write(&fc->killsb); in fuse_get_tree_submount()
1647 struct fuse_conn *fc = fm->fc; in fuse_fill_super_common() local
1656 rcu_assign_pointer(fc->curr_bucket, fuse_sync_bucket_alloc()); in fuse_fill_super_common()
1673 err = fuse_dax_conn_alloc(fc, ctx->dax_mode, ctx->dax_dev); in fuse_fill_super_common()
1680 fud = fuse_dev_alloc_install(fc); in fuse_fill_super_common()
1685 fc->dev = sb->s_dev; in fuse_fill_super_common()
1687 err = fuse_bdi_init(fc, sb); in fuse_fill_super_common()
1693 fc->dont_mask = 1; in fuse_fill_super_common()
1696 fc->default_permissions = ctx->default_permissions; in fuse_fill_super_common()
1697 fc->allow_other = ctx->allow_other; in fuse_fill_super_common()
1698 fc->user_id = ctx->user_id; in fuse_fill_super_common()
1699 fc->group_id = ctx->group_id; in fuse_fill_super_common()
1700 fc->legacy_opts_show = ctx->legacy_opts_show; in fuse_fill_super_common()
1701 fc->max_read = max_t(unsigned int, 4096, ctx->max_read); in fuse_fill_super_common()
1702 fc->destroy = ctx->destroy; in fuse_fill_super_common()
1703 fc->no_control = ctx->no_control; in fuse_fill_super_common()
1704 fc->no_force_umount = ctx->no_force_umount; in fuse_fill_super_common()
1720 err = fuse_ctl_add_conn(fc); in fuse_fill_super_common()
1724 list_add_tail(&fc->entry, &fuse_conn_list); in fuse_fill_super_common()
1739 fuse_dax_conn_free(fc); in fuse_fill_super_common()
1791 struct fuse_conn *fc; in fuse_get_tree() local
1796 fc = kmalloc(sizeof(*fc), GFP_KERNEL); in fuse_get_tree()
1797 if (!fc) in fuse_get_tree()
1802 kfree(fc); in fuse_get_tree()
1806 fuse_conn_init(fc, fm, fsc->user_ns, &fuse_dev_fiq_ops, NULL); in fuse_get_tree()
1807 fc->release = fuse_free_conn; in fuse_get_tree()
1832 fsc->sget_key = fud->fc; in fuse_get_tree()
1884 struct fuse_conn *fc = fm->fc; in fuse_mount_remove() local
1887 down_write(&fc->killsb); in fuse_mount_remove()
1889 if (list_empty(&fc->mounts)) in fuse_mount_remove()
1891 up_write(&fc->killsb); in fuse_mount_remove()
1899 struct fuse_conn *fc = fm->fc; in fuse_conn_destroy() local
1901 if (fc->destroy) in fuse_conn_destroy()
1904 fuse_abort_conn(fc); in fuse_conn_destroy()
1905 fuse_wait_aborted(fc); in fuse_conn_destroy()
1907 if (!list_empty(&fc->entry)) { in fuse_conn_destroy()
1909 list_del(&fc->entry); in fuse_conn_destroy()
1910 fuse_ctl_remove_conn(fc); in fuse_conn_destroy()
1930 fuse_conn_put(fm->fc); in fuse_mount_destroy()