diff options
Diffstat (limited to 'src/kernel')
| -rw-r--r-- | src/kernel/vfs/request.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/kernel/vfs/request.c b/src/kernel/vfs/request.c index 0214ca7..761b619 100644 --- a/src/kernel/vfs/request.c +++ b/src/kernel/vfs/request.c @@ -25,15 +25,17 @@ int vfs_request_create(struct vfs_request req_) { ret = vfs_request_finish(req, ret); return ret; case VFS_BACK_USER: - if (req->backend->handler == NULL) { + if (req->backend->handler + && req->backend->handler->state == PS_WAITS4REQUEST) + { + vfs_request_pass2handler(req); + } else { // backend isn't ready yet, join the queue struct process **iter = &req->backend->queue; while (*iter != NULL) iter = &(*iter)->waits4fs.queue_next; *iter = process_current; process_switch_any(); - } else { - vfs_request_pass2handler(req); } default: panic_invalid_state(); @@ -45,7 +47,7 @@ _Noreturn void vfs_request_pass2handler(struct vfs_request *req) { struct fs_wait_response res = {0}; int len; assert(handler); - assert(handler->state == PS_WAITS4REQUEST); + assert(handler->state == PS_WAITS4REQUEST); // TODO currently callers have to ensure that the handler is in the correct state. should they? assert(!handler->handled_req); handler->state = PS_RUNNING; handler->handled_req = req; |