Changes in uspace/lib/libfs/libfs.c [c888102:1313ee9] in mainline
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uspace/lib/libfs/libfs.c
rc888102 r1313ee9 224 224 ipc_answer_3(rid, rc, IPC_GET_ARG1(answer), IPC_GET_ARG2(answer), 225 225 IPC_GET_ARG3(answer)); 226 }227 228 void libfs_unmount(libfs_ops_t *ops, ipc_callid_t rid, ipc_call_t *request)229 {230 dev_handle_t mp_dev_handle = (dev_handle_t) IPC_GET_ARG1(*request);231 fs_index_t mp_fs_index = (fs_index_t) IPC_GET_ARG2(*request);232 fs_node_t *fn;233 int res;234 235 res = ops->node_get(&fn, mp_dev_handle, mp_fs_index);236 if ((res != EOK) || (!fn)) {237 ipc_answer_0(rid, combine_rc(res, ENOENT));238 return;239 }240 241 /*242 * We are clearly expecting to find the mount point active.243 */244 if (!fn->mp_data.mp_active) {245 (void) ops->node_put(fn);246 ipc_answer_0(rid, EINVAL);247 return;248 }249 250 /*251 * Tell the mounted file system to unmount.252 */253 res = async_req_1_0(fn->mp_data.phone, VFS_OUT_UNMOUNTED,254 fn->mp_data.dev_handle);255 256 /*257 * If everything went well, perform the clean-up on our side.258 */259 if (res == EOK) {260 ipc_hangup(fn->mp_data.phone);261 fn->mp_data.mp_active = false;262 fn->mp_data.fs_handle = 0;263 fn->mp_data.dev_handle = 0;264 fn->mp_data.phone = 0;265 /* Drop the reference created in libfs_mount(). */266 (void) ops->node_put(fn);267 }268 269 (void) ops->node_put(fn);270 ipc_answer_0(rid, res);271 226 } 272 227 … … 349 304 on_error(rc, goto out_with_answer); 350 305 351 /* 352 * If the matching component is a mount point, there are two 353 * legitimate semantics of the lookup operation. The first is 354 * the commonly used one in which the lookup crosses each mount 355 * point into the mounted file system. The second semantics is 356 * used mostly during unmount() and differs from the first one 357 * only in that the last mount point in the looked up path, 358 * which is also its last component, is not crossed. 359 */ 360 361 if ((tmp) && (tmp->mp_data.mp_active) && 362 (!(lflag & L_MP) || (next <= last))) { 306 if ((tmp) && (tmp->mp_data.mp_active)) { 363 307 if (next > last) 364 308 next = last = first; … … 531 475 goto out; 532 476 } 533 534 if ((lflag & L_ROOT) && par) {535 ipc_answer_0(rid, EINVAL);536 goto out;537 }538 477 539 478 out_with_answer:
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