Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e0955e14f72dd1f561dc8b7c4434a253914ddfd4 Commit: e0955e14f72dd1f561dc8b7c4434a253914ddfd4 Parent: 6804396f1b66c504bac1267d71a857f7a1d1e9dd Author: Jiri Slaby <[EMAIL PROTECTED]> AuthorDate: Sun Jul 15 23:40:19 2007 -0700 Committer: Linus Torvalds <[EMAIL PROTECTED]> CommitDate: Mon Jul 16 09:05:44 2007 -0700
Char: genrtc, use wait_event_interruptible genrtc, use wait_event_interruptible Signed-off-by: Jiri Slaby <[EMAIL PROTECTED]> Cc: Alessandro Zummo <[EMAIL PROTECTED]> Cc: Roman Zippel <[EMAIL PROTECTED]> Cc: David Brownell <[EMAIL PROTECTED]> Signed-off-by: Andrew Morton <[EMAIL PROTECTED]> Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]> --- drivers/char/genrtc.c | 22 +++++----------------- 1 files changed, 5 insertions(+), 17 deletions(-) diff --git a/drivers/char/genrtc.c b/drivers/char/genrtc.c index 9e1fc02..69f0a29 100644 --- a/drivers/char/genrtc.c +++ b/drivers/char/genrtc.c @@ -173,7 +173,6 @@ static void gen_rtc_interrupt(unsigned long arg) static ssize_t gen_rtc_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { - DECLARE_WAITQUEUE(wait, current); unsigned long data; ssize_t retval; @@ -183,18 +182,10 @@ static ssize_t gen_rtc_read(struct file *file, char __user *buf, if (file->f_flags & O_NONBLOCK && !gen_rtc_irq_data) return -EAGAIN; - add_wait_queue(&gen_rtc_wait, &wait); - retval = -ERESTARTSYS; - - while (1) { - set_current_state(TASK_INTERRUPTIBLE); - data = xchg(&gen_rtc_irq_data, 0); - if (data) - break; - if (signal_pending(current)) - goto out; - schedule(); - } + retval = wait_event_interruptible(gen_rtc_wait, + (data = xchg(&gen_rtc_irq_data, 0))); + if (retval) + goto out; /* first test allows optimizer to nuke this case for 32-bit machines */ if (sizeof (int) != sizeof (long) && count == sizeof (unsigned int)) { @@ -206,10 +197,7 @@ static ssize_t gen_rtc_read(struct file *file, char __user *buf, retval = put_user(data, (unsigned long __user *)buf) ?: sizeof(unsigned long); } - out: - __set_current_state(TASK_RUNNING); - remove_wait_queue(&gen_rtc_wait, &wait); - +out: return retval; } - To unsubscribe from this list: send the line "unsubscribe git-commits-head" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html