From a7a746d26cd26b8891e912adf39e526883bda61a Mon Sep 17 00:00:00 2001 From: Mathias Nyman Date: Mon, 6 Sep 2010 13:52:01 +0300 Subject: [PATCH] --- yaml --- r: 210845 b: refs/heads/master c: 024cfa5943a7e89565c60b612d698c2bfb3da66a h: refs/heads/master i: 210843: a9b5433064b534303c0b41b41113c5cdc9472e7f v: v3 --- [refs] | 2 +- trunk/arch/frv/kernel/signal.c | 51 +++++++++++---------------- trunk/drivers/serial/amba-pl010.c | 9 +++-- trunk/drivers/serial/mfd.c | 17 +++++---- trunk/drivers/usb/musb/musb_debugfs.c | 5 ++- trunk/mm/memory.c | 8 ++--- 6 files changed, 41 insertions(+), 51 deletions(-) diff --git a/[refs] b/[refs] index 1197890b0ff1..8385b841c031 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 36ff4a5517779355f4bd62030cdb8498c3954f29 +refs/heads/master: 024cfa5943a7e89565c60b612d698c2bfb3da66a diff --git a/trunk/arch/frv/kernel/signal.c b/trunk/arch/frv/kernel/signal.c index bab01298b58e..0974c0ecc594 100644 --- a/trunk/arch/frv/kernel/signal.c +++ b/trunk/arch/frv/kernel/signal.c @@ -121,9 +121,6 @@ static int restore_sigcontext(struct sigcontext __user *sc, int *_gr8) struct user_context *user = current->thread.user; unsigned long tbr, psr; - /* Always make any pending restarted system calls return -EINTR */ - current_thread_info()->restart_block.fn = do_no_restart_syscall; - tbr = user->i.tbr; psr = user->i.psr; if (copy_from_user(user, &sc->sc_context, sizeof(sc->sc_context))) @@ -253,8 +250,6 @@ static int setup_frame(int sig, struct k_sigaction *ka, sigset_t *set) struct sigframe __user *frame; int rsig; - set_fs(USER_DS); - frame = get_sigframe(ka, sizeof(*frame)); if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame))) @@ -298,23 +293,22 @@ static int setup_frame(int sig, struct k_sigaction *ka, sigset_t *set) (unsigned long) (frame->retcode + 2)); } - /* Set up registers for the signal handler */ + /* set up registers for signal handler */ + __frame->sp = (unsigned long) frame; + __frame->lr = (unsigned long) &frame->retcode; + __frame->gr8 = sig; + if (current->personality & FDPIC_FUNCPTRS) { struct fdpic_func_descriptor __user *funcptr = (struct fdpic_func_descriptor __user *) ka->sa.sa_handler; - struct fdpic_func_descriptor desc; - if (copy_from_user(&desc, funcptr, sizeof(desc))) - goto give_sigsegv; - __frame->pc = desc.text; - __frame->gr15 = desc.GOT; + __get_user(__frame->pc, &funcptr->text); + __get_user(__frame->gr15, &funcptr->GOT); } else { __frame->pc = (unsigned long) ka->sa.sa_handler; __frame->gr15 = 0; } - __frame->sp = (unsigned long) frame; - __frame->lr = (unsigned long) &frame->retcode; - __frame->gr8 = sig; + set_fs(USER_DS); /* the tracer may want to single-step inside the handler */ if (test_thread_flag(TIF_SINGLESTEP)) @@ -329,7 +323,7 @@ static int setup_frame(int sig, struct k_sigaction *ka, sigset_t *set) return 0; give_sigsegv: - force_sigsegv(sig, current); + force_sig(SIGSEGV, current); return -EFAULT; } /* end setup_frame() */ @@ -344,8 +338,6 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, struct rt_sigframe __user *frame; int rsig; - set_fs(USER_DS); - frame = get_sigframe(ka, sizeof(*frame)); if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame))) @@ -400,23 +392,22 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, } /* Set up registers for signal handler */ + __frame->sp = (unsigned long) frame; + __frame->lr = (unsigned long) &frame->retcode; + __frame->gr8 = sig; + __frame->gr9 = (unsigned long) &frame->info; + if (current->personality & FDPIC_FUNCPTRS) { struct fdpic_func_descriptor __user *funcptr = (struct fdpic_func_descriptor __user *) ka->sa.sa_handler; - struct fdpic_func_descriptor desc; - if (copy_from_user(&desc, funcptr, sizeof(desc))) - goto give_sigsegv; - __frame->pc = desc.text; - __frame->gr15 = desc.GOT; + __get_user(__frame->pc, &funcptr->text); + __get_user(__frame->gr15, &funcptr->GOT); } else { __frame->pc = (unsigned long) ka->sa.sa_handler; __frame->gr15 = 0; } - __frame->sp = (unsigned long) frame; - __frame->lr = (unsigned long) &frame->retcode; - __frame->gr8 = sig; - __frame->gr9 = (unsigned long) &frame->info; + set_fs(USER_DS); /* the tracer may want to single-step inside the handler */ if (test_thread_flag(TIF_SINGLESTEP)) @@ -431,7 +422,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, return 0; give_sigsegv: - force_sigsegv(sig, current); + force_sig(SIGSEGV, current); return -EFAULT; } /* end setup_rt_frame() */ @@ -446,7 +437,7 @@ static int handle_signal(unsigned long sig, siginfo_t *info, int ret; /* Are we from a system call? */ - if (__frame->syscallno != -1) { + if (in_syscall(__frame)) { /* If so, check system call restarting.. */ switch (__frame->gr8) { case -ERESTART_RESTARTBLOCK: @@ -465,7 +456,6 @@ static int handle_signal(unsigned long sig, siginfo_t *info, __frame->gr8 = __frame->orig_gr8; __frame->pc -= 4; } - __frame->syscallno = -1; } /* Set up the stack frame */ @@ -548,11 +538,10 @@ static void do_signal(void) break; case -ERESTART_RESTARTBLOCK: - __frame->gr7 = __NR_restart_syscall; + __frame->gr8 = __NR_restart_syscall; __frame->pc -= 4; break; } - __frame->syscallno = -1; } /* if there's no signal to deliver, we just put the saved sigmask diff --git a/trunk/drivers/serial/amba-pl010.c b/trunk/drivers/serial/amba-pl010.c index 2904aa044126..50441ffe8e38 100644 --- a/trunk/drivers/serial/amba-pl010.c +++ b/trunk/drivers/serial/amba-pl010.c @@ -472,9 +472,14 @@ pl010_set_termios(struct uart_port *port, struct ktermios *termios, spin_unlock_irqrestore(&uap->port.lock, flags); } -static void pl010_set_ldisc(struct uart_port *port, int new) +static void pl010_set_ldisc(struct uart_port *port) { - if (new == N_PPS) { + int line = port->line; + + if (line >= port->state->port.tty->driver->num) + return; + + if (port->state->port.tty->ldisc->ops->num == N_PPS) { port->flags |= UPF_HARDPPS_CD; pl010_enable_ms(port); } else diff --git a/trunk/drivers/serial/mfd.c b/trunk/drivers/serial/mfd.c index 324c385a653d..bc9af503907f 100644 --- a/trunk/drivers/serial/mfd.c +++ b/trunk/drivers/serial/mfd.c @@ -1423,6 +1423,7 @@ static void hsu_global_init(void) } phsu = hsu; + hsu_debugfs_init(hsu); return; @@ -1434,20 +1435,18 @@ static void hsu_global_init(void) static void serial_hsu_remove(struct pci_dev *pdev) { - void *priv = pci_get_drvdata(pdev); - struct uart_hsu_port *up; + struct hsu_port *hsu; + int i; - if (!priv) + hsu = pci_get_drvdata(pdev); + if (!hsu) return; - /* For port 0/1/2, priv is the address of uart_hsu_port */ - if (pdev->device != 0x081E) { - up = priv; - uart_remove_one_port(&serial_hsu_reg, &up->port); - } + for (i = 0; i < 3; i++) + uart_remove_one_port(&serial_hsu_reg, &hsu->port[i].port); pci_set_drvdata(pdev, NULL); - free_irq(pdev->irq, priv); + free_irq(hsu->irq, hsu); pci_disable_device(pdev); } diff --git a/trunk/drivers/usb/musb/musb_debugfs.c b/trunk/drivers/usb/musb/musb_debugfs.c index c79a5e30d437..9e8639d4e862 100644 --- a/trunk/drivers/usb/musb/musb_debugfs.c +++ b/trunk/drivers/usb/musb/musb_debugfs.c @@ -195,15 +195,14 @@ static const struct file_operations musb_regdump_fops = { static int musb_test_mode_open(struct inode *inode, struct file *file) { - file->private_data = inode->i_private; - return single_open(file, musb_test_mode_show, inode->i_private); } static ssize_t musb_test_mode_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { - struct musb *musb = file->private_data; + struct seq_file *s = file->private_data; + struct musb *musb = s->private; u8 test = 0; char buf[18]; diff --git a/trunk/mm/memory.c b/trunk/mm/memory.c index 0e18b4d649ec..71b161b73bb5 100644 --- a/trunk/mm/memory.c +++ b/trunk/mm/memory.c @@ -2680,12 +2680,10 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma, delayacct_clear_flag(DELAYACCT_PF_SWAPIN); /* - * Make sure try_to_free_swap or reuse_swap_page or swapoff did not - * release the swapcache from under us. The page pin, and pte_same - * test below, are not enough to exclude that. Even if it is still - * swapcache, we need to check that the page's swap has not changed. + * Make sure try_to_free_swap didn't release the swapcache + * from under us. The page pin isn't enough to prevent that. */ - if (unlikely(!PageSwapCache(page) || page_private(page) != entry.val)) + if (unlikely(!PageSwapCache(page))) goto out_page; if (ksm_might_need_to_copy(page, vma, address)) {