Linux Kernel Markers - Architecture Independant Code fix 2
Fix trivial SMP bug in list_modules.
Signed-off-by: Mathieu Desnoyers <[email protected]>
---
kernel/module.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
Index: linux-2.6-lttng/kernel/module.c
===================================================================
--- linux-2.6-lttng.orig/kernel/module.c 2007-05-10 08:51:02.000000000 -0400
+++ linux-2.6-lttng/kernel/module.c 2007-05-10 08:51:06.000000000 -0400
@@ -2657,13 +2657,16 @@
/* Enumerate loaded modules */
struct list_head *i;
struct module *mod;
- unsigned long refcount = 0;
+ unsigned long refcount;
+ int cpu;
mutex_lock(&module_mutex);
list_for_each(i, &modules) {
mod = list_entry(i, struct module, list);
+ refcount = 0;
#ifdef CONFIG_MODULE_UNLOAD
- refcount = local_read(&mod->ref[0].count);
+ for_each_online_cpu(cpu)
+ refcount += local_read(&mod->ref[cpu].count);
#endif //CONFIG_MODULE_UNLOAD
trace_mark(list_module, "%s %d %lu",
mod->name, mod->state, refcount);
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
