Lines Matching refs:fc
133 struct fuse_conn *fc = get_fuse_conn(inode); in fuse_evict_inode() local
135 fuse_queue_forget(fc, fi->forget, fi->nodeid, fi->nlookup); in fuse_evict_inode()
164 struct fuse_conn *fc = get_fuse_conn(inode); in fuse_change_attributes_common() local
167 fi->attr_version = ++fc->attr_version; in fuse_change_attributes_common()
179 if (!fc->writeback_cache || !S_ISREG(inode->i_mode)) { in fuse_change_attributes_common()
197 if (!fc->default_permissions) in fuse_change_attributes_common()
206 struct fuse_conn *fc = get_fuse_conn(inode); in fuse_change_attributes() local
208 bool is_wb = fc->writeback_cache; in fuse_change_attributes()
212 spin_lock(&fc->lock); in fuse_change_attributes()
215 spin_unlock(&fc->lock); in fuse_change_attributes()
230 spin_unlock(&fc->lock); in fuse_change_attributes()
238 } else if (fc->auto_inval_data) { in fuse_change_attributes()
303 struct fuse_conn *fc = get_fuse_conn_super(sb); in fuse_iget() local
312 if (!fc->writeback_cache || !S_ISREG(attr->mode)) in fuse_iget()
325 spin_lock(&fc->lock); in fuse_iget()
327 spin_unlock(&fc->lock); in fuse_iget()
376 static void fuse_send_destroy(struct fuse_conn *fc) in fuse_send_destroy() argument
378 struct fuse_req *req = fc->destroy_req; in fuse_send_destroy()
379 if (req && fc->conn_init) { in fuse_send_destroy()
380 fc->destroy_req = NULL; in fuse_send_destroy()
384 fuse_request_send(fc, req); in fuse_send_destroy()
385 fuse_put_request(fc, req); in fuse_send_destroy()
389 static void fuse_bdi_destroy(struct fuse_conn *fc) in fuse_bdi_destroy() argument
391 if (fc->bdi_initialized) in fuse_bdi_destroy()
392 bdi_destroy(&fc->bdi); in fuse_bdi_destroy()
397 struct fuse_conn *fc = get_fuse_conn_super(sb); in fuse_put_super() local
399 fuse_send_destroy(fc); in fuse_put_super()
401 fuse_abort_conn(fc); in fuse_put_super()
403 list_del(&fc->entry); in fuse_put_super()
404 fuse_ctl_remove_conn(fc); in fuse_put_super()
406 fuse_bdi_destroy(fc); in fuse_put_super()
408 fuse_conn_put(fc); in fuse_put_super()
428 struct fuse_conn *fc = get_fuse_conn_super(sb); in fuse_statfs() local
433 if (!fuse_allow_current_process(fc)) { in fuse_statfs()
445 err = fuse_simple_request(fc, &args); in fuse_statfs()
572 struct fuse_conn *fc = get_fuse_conn_super(sb); in fuse_show_options() local
574 seq_printf(m, ",user_id=%u", from_kuid_munged(&init_user_ns, fc->user_id)); in fuse_show_options()
575 seq_printf(m, ",group_id=%u", from_kgid_munged(&init_user_ns, fc->group_id)); in fuse_show_options()
576 if (fc->default_permissions) in fuse_show_options()
578 if (fc->allow_other) in fuse_show_options()
580 if (fc->max_read != ~0) in fuse_show_options()
581 seq_printf(m, ",max_read=%u", fc->max_read); in fuse_show_options()
606 void fuse_conn_init(struct fuse_conn *fc) in fuse_conn_init() argument
608 memset(fc, 0, sizeof(*fc)); in fuse_conn_init()
609 spin_lock_init(&fc->lock); in fuse_conn_init()
610 init_rwsem(&fc->killsb); in fuse_conn_init()
611 atomic_set(&fc->count, 1); in fuse_conn_init()
612 atomic_set(&fc->dev_count, 1); in fuse_conn_init()
613 init_waitqueue_head(&fc->blocked_waitq); in fuse_conn_init()
614 init_waitqueue_head(&fc->reserved_req_waitq); in fuse_conn_init()
615 fuse_iqueue_init(&fc->iq); in fuse_conn_init()
616 INIT_LIST_HEAD(&fc->bg_queue); in fuse_conn_init()
617 INIT_LIST_HEAD(&fc->entry); in fuse_conn_init()
618 INIT_LIST_HEAD(&fc->devices); in fuse_conn_init()
619 atomic_set(&fc->num_waiting, 0); in fuse_conn_init()
620 fc->max_background = FUSE_DEFAULT_MAX_BACKGROUND; in fuse_conn_init()
621 fc->congestion_threshold = FUSE_DEFAULT_CONGESTION_THRESHOLD; in fuse_conn_init()
622 fc->khctr = 0; in fuse_conn_init()
623 fc->polled_files = RB_ROOT; in fuse_conn_init()
624 fc->blocked = 0; in fuse_conn_init()
625 fc->initialized = 0; in fuse_conn_init()
626 fc->connected = 1; in fuse_conn_init()
627 fc->attr_version = 1; in fuse_conn_init()
628 get_random_bytes(&fc->scramble_key, sizeof(fc->scramble_key)); in fuse_conn_init()
632 void fuse_conn_put(struct fuse_conn *fc) in fuse_conn_put() argument
634 if (atomic_dec_and_test(&fc->count)) { in fuse_conn_put()
635 if (fc->destroy_req) in fuse_conn_put()
636 fuse_request_free(fc->destroy_req); in fuse_conn_put()
637 fc->release(fc); in fuse_conn_put()
642 struct fuse_conn *fuse_conn_get(struct fuse_conn *fc) in fuse_conn_get() argument
644 atomic_inc(&fc->count); in fuse_conn_get()
645 return fc; in fuse_conn_get()
668 struct fuse_conn *fc = get_fuse_conn_super(sb); in fuse_get_dentry() local
681 if (!fc->export_support) in fuse_get_dentry()
775 struct fuse_conn *fc = get_fuse_conn(child_inode); in fuse_get_parent() local
782 if (!fc->export_support) in fuse_get_parent()
843 static void process_init_limits(struct fuse_conn *fc, struct fuse_init_out *arg) in process_init_limits() argument
854 fc->max_background = arg->max_background; in process_init_limits()
856 if (!cap_sys_admin && fc->max_background > max_user_bgreq) in process_init_limits()
857 fc->max_background = max_user_bgreq; in process_init_limits()
860 fc->congestion_threshold = arg->congestion_threshold; in process_init_limits()
863 fc->congestion_threshold > max_user_congthresh) in process_init_limits()
864 fc->congestion_threshold = max_user_congthresh; in process_init_limits()
868 static void process_init_reply(struct fuse_conn *fc, struct fuse_req *req) in process_init_reply() argument
873 fc->conn_error = 1; in process_init_reply()
877 process_init_limits(fc, arg); in process_init_reply()
882 fc->async_read = 1; in process_init_reply()
884 fc->no_lock = 1; in process_init_reply()
887 fc->no_flock = 1; in process_init_reply()
890 fc->no_flock = 1; in process_init_reply()
893 fc->atomic_o_trunc = 1; in process_init_reply()
897 fc->export_support = 1; in process_init_reply()
900 fc->big_writes = 1; in process_init_reply()
902 fc->dont_mask = 1; in process_init_reply()
904 fc->auto_inval_data = 1; in process_init_reply()
906 fc->do_readdirplus = 1; in process_init_reply()
908 fc->readdirplus_auto = 1; in process_init_reply()
911 fc->async_dio = 1; in process_init_reply()
913 fc->writeback_cache = 1; in process_init_reply()
915 fc->parallel_dirops = 1; in process_init_reply()
917 fc->handle_killpriv = 1; in process_init_reply()
919 fc->sb->s_time_gran = arg->time_gran; in process_init_reply()
921 fc->default_permissions = 1; in process_init_reply()
922 fc->posix_acl = 1; in process_init_reply()
923 fc->sb->s_xattr = fuse_acl_xattr_handlers; in process_init_reply()
926 ra_pages = fc->max_read / PAGE_SIZE; in process_init_reply()
927 fc->no_lock = 1; in process_init_reply()
928 fc->no_flock = 1; in process_init_reply()
931 fc->bdi.ra_pages = min(fc->bdi.ra_pages, ra_pages); in process_init_reply()
932 fc->minor = arg->minor; in process_init_reply()
933 fc->max_write = arg->minor < 5 ? 4096 : arg->max_write; in process_init_reply()
934 fc->max_write = max_t(unsigned, 4096, fc->max_write); in process_init_reply()
935 fc->conn_init = 1; in process_init_reply()
937 fuse_set_initialized(fc); in process_init_reply()
938 wake_up_all(&fc->blocked_waitq); in process_init_reply()
941 static void fuse_send_init(struct fuse_conn *fc, struct fuse_req *req) in fuse_send_init() argument
947 arg->max_readahead = fc->bdi.ra_pages * PAGE_SIZE; in fuse_send_init()
967 fuse_request_send_background(fc, req); in fuse_send_init()
970 static void fuse_free_conn(struct fuse_conn *fc) in fuse_free_conn() argument
972 WARN_ON(!list_empty(&fc->devices)); in fuse_free_conn()
973 kfree_rcu(fc, rcu); in fuse_free_conn()
976 static int fuse_bdi_init(struct fuse_conn *fc, struct super_block *sb) in fuse_bdi_init() argument
980 fc->bdi.name = "fuse"; in fuse_bdi_init()
981 fc->bdi.ra_pages = (VM_MAX_READAHEAD * 1024) / PAGE_SIZE; in fuse_bdi_init()
983 fc->bdi.capabilities = BDI_CAP_NO_ACCT_WB | BDI_CAP_STRICTLIMIT; in fuse_bdi_init()
985 err = bdi_init(&fc->bdi); in fuse_bdi_init()
989 fc->bdi_initialized = 1; in fuse_bdi_init()
992 err = bdi_register(&fc->bdi, NULL, "%u:%u-fuseblk", in fuse_bdi_init()
993 MAJOR(fc->dev), MINOR(fc->dev)); in fuse_bdi_init()
995 err = bdi_register_dev(&fc->bdi, fc->dev); in fuse_bdi_init()
1013 bdi_set_max_ratio(&fc->bdi, 1); in fuse_bdi_init()
1018 struct fuse_dev *fuse_dev_alloc(struct fuse_conn *fc) in fuse_dev_alloc() argument
1024 fud->fc = fuse_conn_get(fc); in fuse_dev_alloc()
1027 spin_lock(&fc->lock); in fuse_dev_alloc()
1028 list_add_tail(&fud->entry, &fc->devices); in fuse_dev_alloc()
1029 spin_unlock(&fc->lock); in fuse_dev_alloc()
1038 struct fuse_conn *fc = fud->fc; in fuse_dev_free() local
1040 if (fc) { in fuse_dev_free()
1041 spin_lock(&fc->lock); in fuse_dev_free()
1043 spin_unlock(&fc->lock); in fuse_dev_free()
1045 fuse_conn_put(fc); in fuse_dev_free()
1054 struct fuse_conn *fc; in fuse_fill_super() local
1098 fc = kmalloc(sizeof(*fc), GFP_KERNEL); in fuse_fill_super()
1100 if (!fc) in fuse_fill_super()
1103 fuse_conn_init(fc); in fuse_fill_super()
1104 fc->release = fuse_free_conn; in fuse_fill_super()
1106 fud = fuse_dev_alloc(fc); in fuse_fill_super()
1110 fc->dev = sb->s_dev; in fuse_fill_super()
1111 fc->sb = sb; in fuse_fill_super()
1112 err = fuse_bdi_init(fc, sb); in fuse_fill_super()
1116 sb->s_bdi = &fc->bdi; in fuse_fill_super()
1120 fc->dont_mask = 1; in fuse_fill_super()
1123 fc->default_permissions = d.default_permissions; in fuse_fill_super()
1124 fc->allow_other = d.allow_other; in fuse_fill_super()
1125 fc->user_id = d.user_id; in fuse_fill_super()
1126 fc->group_id = d.group_id; in fuse_fill_super()
1127 fc->max_read = max_t(unsigned, 4096, d.max_read); in fuse_fill_super()
1130 sb->s_fs_info = fc; in fuse_fill_super()
1147 fc->destroy_req = fuse_request_alloc(0); in fuse_fill_super()
1148 if (!fc->destroy_req) in fuse_fill_super()
1157 err = fuse_ctl_add_conn(fc); in fuse_fill_super()
1161 list_add_tail(&fc->entry, &fuse_conn_list); in fuse_fill_super()
1172 fuse_send_init(fc, init_req); in fuse_fill_super()
1185 fuse_bdi_destroy(fc); in fuse_fill_super()
1186 fuse_conn_put(fc); in fuse_fill_super()
1202 struct fuse_conn *fc = get_fuse_conn_super(sb); in fuse_kill_sb_anon() local
1204 if (fc) { in fuse_kill_sb_anon()
1205 down_write(&fc->killsb); in fuse_kill_sb_anon()
1206 fc->sb = NULL; in fuse_kill_sb_anon()
1207 up_write(&fc->killsb); in fuse_kill_sb_anon()
1232 struct fuse_conn *fc = get_fuse_conn_super(sb); in fuse_kill_sb_blk() local
1234 if (fc) { in fuse_kill_sb_blk()
1235 down_write(&fc->killsb); in fuse_kill_sb_blk()
1236 fc->sb = NULL; in fuse_kill_sb_blk()
1237 up_write(&fc->killsb); in fuse_kill_sb_blk()