Andrew Morton wrote:
Index: linux-2.6.19-rc-mm/include/linux/timer.h
===================================================================
--- linux-2.6.19-rc-mm.orig/include/linux/timer.h 2006-11-13 15:06:26.000000000 -0800
+++ linux-2.6.19-rc-mm/include/linux/timer.h 2006-11-13 16:01:03.000000000 -0800
@@ -8,6 +8,8 @@
struct tvec_t_base_s;
+#define TIMER_FLAG_NOT_IN_IDLE (0x1)
+
struct timer_list {
struct list_head entry;
unsigned long expires;
@@ -16,6 +18,7 @@
unsigned long data;
struct tvec_t_base_s *base;
+ int flags;
#ifdef CONFIG_TIMER_STATS
Adding a new field to the timer_list is somewhat of a hit - this is going
to make an awful lot of data structures a bit larger. Some of which we
allocate a large number of.
I think we could justfy getting nasty and using the LSB of
timer_list.function for this..
The lsb of a function pointer is used in variable length instruction
processors (such as x86 when optimizing for size). The msb is constant
though.
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
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