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SubjectAdd msleep_interruptible() function to kernel/timer.c
while doing kernel-janitor msleep conversion of drivers own (incorrect),
functions, some places would need msleep_interruptible().

this function is equivalent to:
current->state = TASK_INTERRUPTIBLE;
schedule_timeout(timeout);

idea from Ingo Molnar:
well, aboves is not 100% equivalent because msleep() is uninterruptible so
stoppage of the md thread (upon shutdown) will occur with only a 250 msec
delay. Someone should add a msleep_interruptible() function to kernel/timer.c.

Signed-off-by: Maximilian Attems <janitor@sternwelten.at>


---

linux-2.6.8-max/kernel/timer.c | 15 +++++++++++++++
1 files changed, 15 insertions(+)

diff -puN kernel/timer.c~add-msleep_interruptible kernel/timer.c
--- linux-2.6.8/kernel/timer.c~add-msleep_interruptible 2004-08-14 23:41:46.000000000 +0200
+++ linux-2.6.8-max/kernel/timer.c 2004-08-14 23:41:46.000000000 +0200
@@ -1503,3 +1503,18 @@ void msleep(unsigned int msecs)

EXPORT_SYMBOL(msleep);

+/**
+ * msleep_interruptible - sleep waiting for waitqueue interruptions
+ * @msecs: Time in milliseconds to sleep for
+ */
+void msleep_interruptible(unsigned int msecs)
+{
+ unsigned long timeout = msecs_to_jiffies(msecs);
+
+ while (timeout) {
+ set_current_state(TASK_INTERRUPTIBLE);
+ timeout = schedule_timeout(timeout);
+ }
+}
+
+EXPORT_SYMBOL(msleep_interruptible);
_


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