Masami Hiramatsu writes:
>>> +/*
>>> + * MODULE_REF_BASE must be 1, since we use atomic_inc_not_zero() for
>>> + * recovering refcnt (see try_release_module_ref() ).
>>> + */
>>> +#define MODULE_REF_BASE1
>>
>> True, but we could use atomic_add_unless() instead, and make this
>> completely
(2014/10/13 13:40), Rusty Russell wrote:
>> +/*
>> + * MODULE_REF_BASE must be 1, since we use atomic_inc_not_zero() for
>> + * recovering refcnt (see try_release_module_ref() ).
>> + */
>> +#define MODULE_REF_BASE 1
>
> True, but we could use atomic_add_unless() instead, and make this
>
(2014/10/13 13:40), Rusty Russell wrote:
> Masami Hiramatsu writes:
>> Remove stop_machine from module unloading by replacing module_ref
>> with atomic_t. Note that this can cause a performance regression
>> on big-SMP machine by direct memory access. For those machines,
>> you can lockdwon all
(2014/10/13 13:40), Rusty Russell wrote:
Masami Hiramatsu masami.hiramatsu...@hitachi.com writes:
Remove stop_machine from module unloading by replacing module_ref
with atomic_t. Note that this can cause a performance regression
on big-SMP machine by direct memory access. For those machines,
(2014/10/13 13:40), Rusty Russell wrote:
+/*
+ * MODULE_REF_BASE must be 1, since we use atomic_inc_not_zero() for
+ * recovering refcnt (see try_release_module_ref() ).
+ */
+#define MODULE_REF_BASE 1
True, but we could use atomic_add_unless() instead, and make this
completely
Masami Hiramatsu masami.hiramatsu...@hitachi.com writes:
+/*
+ * MODULE_REF_BASE must be 1, since we use atomic_inc_not_zero() for
+ * recovering refcnt (see try_release_module_ref() ).
+ */
+#define MODULE_REF_BASE1
True, but we could use atomic_add_unless() instead, and make this
Masami Hiramatsu writes:
> Remove stop_machine from module unloading by replacing module_ref
> with atomic_t. Note that this can cause a performance regression
> on big-SMP machine by direct memory access. For those machines,
> you can lockdwon all modules. Since the lockdown skips reference
>
Masami Hiramatsu masami.hiramatsu...@hitachi.com writes:
Remove stop_machine from module unloading by replacing module_ref
with atomic_t. Note that this can cause a performance regression
on big-SMP machine by direct memory access. For those machines,
you can lockdwon all modules. Since the
Remove stop_machine from module unloading by replacing module_ref
with atomic_t. Note that this can cause a performance regression
on big-SMP machine by direct memory access. For those machines,
you can lockdwon all modules. Since the lockdown skips reference
counting, it'll be more scalable than
Remove stop_machine from module unloading by replacing module_ref
with atomic_t. Note that this can cause a performance regression
on big-SMP machine by direct memory access. For those machines,
you can lockdwon all modules. Since the lockdown skips reference
counting, it'll be more scalable than
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