linux/arch/x86/oprofile
Rafael J. Wysocki f3c6ea1b06 x86: Use syscore_ops instead of sysdev classes and sysdevs
Some subsystems in the x86 tree need to carry out suspend/resume and
shutdown operations with one CPU on-line and interrupts disabled and
they define sysdev classes and sysdevs or sysdev drivers for this
purpose.  This leads to unnecessarily complicated code and excessive
memory usage, so switch them to using struct syscore_ops objects for
this purpose instead.

Generally, there are three categories of subsystems that use
sysdevs for implementing PM operations: (1) subsystems whose
suspend/resume callbacks ignore their arguments entirely (the
majority), (2) subsystems whose suspend/resume callbacks use their
struct sys_device argument, but don't really need to do that,
because they can be implemented differently in an arguably simpler
way (io_apic.c), and (3) subsystems whose suspend/resume callbacks
use their struct sys_device argument, but the value of that argument
is always the same and could be ignored (microcode_core.c).  In all
of these cases the subsystems in question may be readily converted to
using struct syscore_ops objects for power management and shutdown.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
2011-03-23 22:15:54 +01:00
..
backtrace.c x86, dumpstack: Correct stack dump info when frame pointer is available 2011-03-18 10:51:42 +01:00
init.c x86: coding style fixes to arch/x86/oprofile/init.c 2008-04-17 17:40:49 +02:00
Makefile x86/oprofile: reanaming op_model_athlon.c to op_model_amd.c 2008-07-26 11:48:14 +02:00
nmi_int.c x86: Use syscore_ops instead of sysdev classes and sysdevs 2011-03-23 22:15:54 +01:00
nmi_timer_int.c x86, NMI: Add priorities to handlers 2011-01-07 15:08:52 +01:00
op_counter.h oprofile: Implement performance counter multiplexing 2009-07-20 16:33:53 +02:00
op_model_amd.c Merge branch 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2011-01-06 11:05:21 -08:00
op_model_p4.c Kill off warning: ‘inline’ is not at beginning of declaration 2011-01-19 15:43:08 +01:00
op_model_ppro.c x86: Replace uses of current_cpu_data with this_cpu ops 2010-12-30 12:22:03 +01:00
op_x86_model.h oprofile/x86: make AMD IBS hotplug capable 2010-05-06 15:11:15 +02:00