On Tue, Aug 26, 2008 at 12:30:46PM -0700, Daniel Walker wrote: > On Tue, 2008-08-26 at 13:13 -0600, Matthew Wilcox wrote: > > On Tue, Aug 26, 2008 at 11:59:49AM -0700, Daniel Walker wrote: > > > The semaphore usage in ACPI is more like completions. The ASL > > > > Huh? They are semaphores. They're not 'more like completions' at all. > > You can clearly make a completion out of a semaphore, but we have a > completion API .. ACPI is using locked semaphores, and essentially > re-making completions with the semaphore API.. What makes you think that? executer/excreate.c: status = acpi_os_create_semaphore(ACPI_NO_UNIT_LIMIT, 0, executer/exsystem.c: acpi_os_create_semaphore(ACPI_NO_UNIT_LIMIT, 0, &temp_semaphore); namespace/nsaccess.c: acpi_os_create_semaphore(1, 0, osl.c:acpi_os_create_semaphore(u32 max_units, u32 initial_units, acpi_handle * handle) All users set 'initial_units' to 0. -- Matthew Wilcox Intel Open Source Technology Centre "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step." -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
