kernel_optimize_test/kernel
KAMEZAWA Hiroyuki 908eedc616 walk system ram range
Originally, walk_memory_resource() was introduced to traverse all memory
of "System RAM" for detecting memory hotplug/unplug range.  For doing so,
flags of IORESOUCE_MEM|IORESOURCE_BUSY was used and this was enough for
memory hotplug.

But for using other purpose, /proc/kcore, this may includes some firmware
area marked as IORESOURCE_BUSY | IORESOUCE_MEM.  This patch makes the
check strict to find out busy "System RAM".

Note: PPC64 keeps their own walk_memory_resouce(), which walk through
ppc64's lmb informaton.  Because old kclist_add() is called per lmb, this
patch makes no difference in behavior, finally.

And this patch removes CONFIG_MEMORY_HOTPLUG check from this function.
Because pfn_valid() just show "there is memmap or not* and cannot be used
for "there is physical memory or not", this function is useful in generic
to scan physical memory range.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Américo Wang <xiyou.wangcong@gmail.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-23 07:39:41 -07:00
..
gcov
irq
power oom: move oom_killer_enable()/oom_killer_disable to where they belong 2009-09-22 07:17:38 -07:00
time
trace seq_file: constify seq_operations 2009-09-23 07:39:29 -07:00
.gitignore
acct.c
async.c
audit_tree.c
audit_watch.c
audit.c
audit.h
auditfilter.c
auditsc.c
backtracetest.c
bounds.c
capability.c
cgroup_debug.c
cgroup_freezer.c
cgroup.c seq_file: constify seq_operations 2009-09-23 07:39:29 -07:00
compat.c
configs.c
cpu.c
cpuset.c
cred-internals.h
cred.c
delayacct.c
dma.c
exec_domain.c
exit.c getrusage: fill ru_maxrss value 2009-09-23 07:39:30 -07:00
extable.c
fork.c procfs: provide stack information for threads 2009-09-23 07:39:41 -07:00
freezer.c
futex_compat.c
futex.c
groups.c
hrtimer.c
hung_task.c
itimer.c
kallsyms.c kallsyms: use new arch_is_kernel_text() 2009-09-23 07:39:30 -07:00
Kconfig.freezer
Kconfig.hz
Kconfig.preempt
kexec.c
kfifo.c
kgdb.c
kmod.c kmod: fix race in usermodehelper code 2009-09-23 07:39:28 -07:00
kprobes.c seq_file: constify seq_operations 2009-09-23 07:39:29 -07:00
ksysfs.c
kthread.c
latencytop.c
lockdep_internals.h
lockdep_proc.c seq_file: constify seq_operations 2009-09-23 07:39:29 -07:00
lockdep_states.h
lockdep.c lockdep: use new arch_is_kernel_data() 2009-09-23 07:39:30 -07:00
Makefile
module.c nommu: add support for Memory Protection Units (MPU) 2009-09-22 07:17:43 -07:00
mutex-debug.c
mutex-debug.h
mutex.c
mutex.h
notifier.c
ns_cgroup.c
nsproxy.c
panic.c
params.c
perf_event.c
pid_namespace.c
pid.c mm: also use alloc_large_system_hash() for the PID hash table 2009-09-22 07:17:38 -07:00
pm_qos_params.c
posix-cpu-timers.c
posix-timers.c
printk.c printk: add printk_delay to make messages readable for some scenarios 2009-09-23 07:39:28 -07:00
profile.c
ptrace.c
rcupdate.c
rcutorture.c
rcutree_plugin.h
rcutree_trace.c
rcutree.c
rcutree.h
relay.c
res_counter.c
resource.c walk system ram range 2009-09-23 07:39:41 -07:00
rtmutex_common.h
rtmutex-debug.c
rtmutex-debug.h
rtmutex-tester.c
rtmutex.c
rtmutex.h
rwsem.c
sched_clock.c
sched_cpupri.c
sched_cpupri.h
sched_debug.c
sched_fair.c
sched_features.h
sched_idletask.c
sched_rt.c
sched_stats.h
sched.c cpuidle: fix the menu governor to boost IO performance 2009-09-22 07:17:45 -07:00
seccomp.c
semaphore.c
signal.c
slow-work.c
smp.c generic-ipi: make struct call_function_data lockless 2009-09-23 07:39:28 -07:00
softirq.c
softlockup.c
spinlock.c
srcu.c
stacktrace.c
stop_machine.c
sys_ni.c
sys.c getrusage: fill ru_maxrss value 2009-09-23 07:39:30 -07:00
sysctl_check.c
sysctl.c printk: add printk_delay to make messages readable for some scenarios 2009-09-23 07:39:28 -07:00
taskstats.c
test_kprobes.c
time.c
timeconst.pl
timer.c
tracepoint.c
tsacct.c
uid16.c
up.c
user_namespace.c
user.c
utsname_sysctl.c
utsname.c
wait.c
workqueue.c