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Tofu: fix ENABLE_TOFU switching

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Change-Id: Ib33323d4b59ea8fb4f5f40dff7ea25a36773d5e2
This commit is contained in:
Masamichi Takagi
2020-12-17 17:16:13 +09:00
parent f6ed44aeec
commit 530110e3a9
17 changed files with 96 additions and 12 deletions
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24
kernel/syscall.c
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@ -220,7 +220,9 @@ long do_syscall(struct syscall_request *req, int cpu)
req->ttid = 0;
}
res.req_thread_status = IHK_SCD_REQ_THREAD_SPINNING;
#ifdef ENABLE_TOFU
res.pde_data = NULL;
#endif
send_syscall(req, cpu, &res);
if (req->rtid == -1) {
@ -381,6 +383,7 @@ long do_syscall(struct syscall_request *req, int cpu)
rc = res.ret;
#ifdef ENABLE_TOFU
if ((req->number == __NR_ioctl && rc == 0) ||
(req->number == __NR_openat && rc > 0)) {
int fd = req->number == __NR_ioctl ? req->args[0] : rc;
@ -407,6 +410,7 @@ long do_syscall(struct syscall_request *req, int cpu)
res.pde_data);
}
}
#endif
if(req->number != __NR_exit_group){
--thread->in_syscall_offload;
@ -1528,7 +1532,9 @@ int process_cleanup_before_terminate(int pid)
{
struct process *proc;
struct mcs_rwlock_node_irqsave lock;
#ifdef ENABLE_TOFU
int fd;
#endif
proc = find_process(pid, &lock);
if (!proc) {
@ -1536,10 +1542,12 @@ int process_cleanup_before_terminate(int pid)
return 0;
}
#ifdef ENABLE_TOFU
/* Clean up PDE file descriptors */
for (fd = 2; fd < MAX_FD_PDE; ++fd) {
__process_cleanup_fd(proc, fd);
}
#endif
process_unlock(proc, &lock);
return 0;
@ -3978,7 +3986,9 @@ SYSCALL_DECLARE(open)
goto out;
}
#ifdef ENABLE_TOFU
cpu_local_var(current)->fd_path_in_open = pathname;
#endif
dkprintf("open(): pathname=%s\n", pathname);
if (!strncmp(pathname, XPMEM_DEV_PATH, len)) {
@ -3987,15 +3997,21 @@ SYSCALL_DECLARE(open)
rc = syscall_generic_forwarding(__NR_open, ctx);
}
#ifdef ENABLE_TOFU
cpu_local_var(current)->fd_path_in_open = NULL;
#endif
out:
#ifdef ENABLE_TOFU
if (rc > 0 && rc < MAX_FD_PDE) {
cpu_local_var(current)->proc->fd_path[rc] = pathname;
}
else {
kfree(pathname);
}
#else
kfree(pathname);
#endif
return rc;
}
@ -4023,7 +4039,9 @@ SYSCALL_DECLARE(openat)
goto out;
}
#ifdef ENABLE_TOFU
cpu_local_var(current)->fd_path_in_open = pathname;
#endif
dkprintf("openat(): pathname=%s\n", pathname);
if (!strncmp(pathname, XPMEM_DEV_PATH, len)) {
@ -4032,15 +4050,21 @@ SYSCALL_DECLARE(openat)
rc = syscall_generic_forwarding(__NR_openat, ctx);
}
#ifdef ENABLE_TOFU
cpu_local_var(current)->fd_path_in_open = NULL;
#endif
out:
#ifdef ENABLE_TOFU
if (rc > 0 && rc < MAX_FD_PDE) {
cpu_local_var(current)->proc->fd_path[rc] = pathname;
}
else {
kfree(pathname);
}
#else
kfree(pathname);
#endif
return rc;
}