Revision f784a3f19613901ca4539a5b0eed3bdc700e6ee7 authored by Tang Chen on 13 November 2014, 23:19:39 UTC, committed by Linus Torvalds on 14 November 2014, 00:17:06 UTC
In free_area_init_core(), zone->managed_pages is set to an approximate value for lowmem, and will be adjusted when the bootmem allocator frees pages into the buddy system. But free_area_init_core() is also called by hotadd_new_pgdat() when hot-adding memory. As a result, zone->managed_pages of the newly added node's pgdat is set to an approximate value in the very beginning. Even if the memory on that node has node been onlined, /sys/device/system/node/nodeXXX/meminfo has wrong value: hot-add node2 (memory not onlined) cat /sys/device/system/node/node2/meminfo Node 2 MemTotal: 33554432 kB Node 2 MemFree: 0 kB Node 2 MemUsed: 33554432 kB Node 2 Active: 0 kB This patch fixes this problem by reset node managed pages to 0 after hot-adding a new node. 1. Move reset_managed_pages_done from reset_node_managed_pages() to reset_all_zones_managed_pages() 2. Make reset_node_managed_pages() non-static 3. Call reset_node_managed_pages() in hotadd_new_pgdat() after pgdat is initialized Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com> Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Cc: <stable@vger.kernel.org> [3.16+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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File | Mode | Size |
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bpf | ||
configs | ||
debug | ||
events | ||
gcov | ||
irq | ||
locking | ||
power | ||
printk | ||
rcu | ||
sched | ||
time | ||
trace | ||
.gitignore | -rw-r--r-- | 91 bytes |
Kconfig.freezer | -rw-r--r-- | 52 bytes |
Kconfig.hz | -rw-r--r-- | 1.6 KB |
Kconfig.locks | -rw-r--r-- | 4.5 KB |
Kconfig.preempt | -rw-r--r-- | 2.1 KB |
Makefile | -rw-r--r-- | 7.3 KB |
acct.c | -rw-r--r-- | 15.4 KB |
async.c | -rw-r--r-- | 9.9 KB |
audit.c | -rw-r--r-- | 52.7 KB |
audit.h | -rw-r--r-- | 10.2 KB |
audit_tree.c | -rw-r--r-- | 22.0 KB |
audit_watch.c | -rw-r--r-- | 13.6 KB |
auditfilter.c | -rw-r--r-- | 33.8 KB |
auditsc.c | -rw-r--r-- | 65.9 KB |
backtracetest.c | -rw-r--r-- | 2.1 KB |
bounds.c | -rw-r--r-- | 703 bytes |
capability.c | -rw-r--r-- | 12.0 KB |
cgroup.c | -rw-r--r-- | 148.0 KB |
cgroup_freezer.c | -rw-r--r-- | 12.5 KB |
compat.c | -rw-r--r-- | 29.5 KB |
configs.c | -rw-r--r-- | 2.8 KB |
context_tracking.c | -rw-r--r-- | 5.7 KB |
cpu.c | -rw-r--r-- | 19.3 KB |
cpu_pm.c | -rw-r--r-- | 6.5 KB |
cpuset.c | -rw-r--r-- | 77.7 KB |
crash_dump.c | -rw-r--r-- | 1.3 KB |
cred.c | -rw-r--r-- | 21.2 KB |
delayacct.c | -rw-r--r-- | 4.5 KB |
dma.c | -rw-r--r-- | 3.6 KB |
elfcore.c | -rw-r--r-- | 396 bytes |
exec_domain.c | -rw-r--r-- | 4.3 KB |
exit.c | -rw-r--r-- | 41.9 KB |
extable.c | -rw-r--r-- | 3.9 KB |
fork.c | -rw-r--r-- | 47.6 KB |
freezer.c | -rw-r--r-- | 4.4 KB |
futex.c | -rw-r--r-- | 81.7 KB |
futex_compat.c | -rw-r--r-- | 4.5 KB |
groups.c | -rw-r--r-- | 5.8 KB |
hung_task.c | -rw-r--r-- | 5.7 KB |
irq_work.c | -rw-r--r-- | 4.5 KB |
jump_label.c | -rw-r--r-- | 11.0 KB |
kallsyms.c | -rw-r--r-- | 14.9 KB |
kcmp.c | -rw-r--r-- | 4.3 KB |
kexec.c | -rw-r--r-- | 67.8 KB |
kmod.c | -rw-r--r-- | 19.5 KB |
kprobes.c | -rw-r--r-- | 60.4 KB |
ksysfs.c | -rw-r--r-- | 5.6 KB |
kthread.c | -rw-r--r-- | 18.6 KB |
latencytop.c | -rw-r--r-- | 7.6 KB |
module-internal.h | -rw-r--r-- | 458 bytes |
module.c | -rw-r--r-- | 96.6 KB |
module_signing.c | -rw-r--r-- | 5.9 KB |
notifier.c | -rw-r--r-- | 16.2 KB |
nsproxy.c | -rw-r--r-- | 6.1 KB |
padata.c | -rw-r--r-- | 26.9 KB |
panic.c | -rw-r--r-- | 12.0 KB |
params.c | -rw-r--r-- | 22.3 KB |
pid.c | -rw-r--r-- | 14.9 KB |
pid_namespace.c | -rw-r--r-- | 9.0 KB |
profile.c | -rw-r--r-- | 16.1 KB |
ptrace.c | -rw-r--r-- | 29.8 KB |
range.c | -rw-r--r-- | 3.0 KB |
reboot.c | -rw-r--r-- | 12.5 KB |
relay.c | -rw-r--r-- | 32.6 KB |
res_counter.c | -rw-r--r-- | 4.4 KB |
resource.c | -rw-r--r-- | 36.6 KB |
seccomp.c | -rw-r--r-- | 23.9 KB |
signal.c | -rw-r--r-- | 94.8 KB |
smp.c | -rw-r--r-- | 19.4 KB |
smpboot.c | -rw-r--r-- | 6.9 KB |
smpboot.h | -rw-r--r-- | 564 bytes |
softirq.c | -rw-r--r-- | 18.8 KB |
stacktrace.c | -rw-r--r-- | 1.1 KB |
stop_machine.c | -rw-r--r-- | 17.2 KB |
sys.c | -rw-r--r-- | 55.8 KB |
sys_ni.c | -rw-r--r-- | 6.3 KB |
sysctl.c | -rw-r--r-- | 62.3 KB |
sysctl_binary.c | -rw-r--r-- | 51.0 KB |
system_certificates.S | -rw-r--r-- | 470 bytes |
system_keyring.c | -rw-r--r-- | 2.8 KB |
task_work.c | -rw-r--r-- | 3.4 KB |
taskstats.c | -rw-r--r-- | 16.2 KB |
test_kprobes.c | -rw-r--r-- | 7.4 KB |
torture.c | -rw-r--r-- | 19.9 KB |
tracepoint.c | -rw-r--r-- | 13.3 KB |
tsacct.c | -rw-r--r-- | 4.9 KB |
uid16.c | -rw-r--r-- | 5.0 KB |
up.c | -rw-r--r-- | 1.7 KB |
user-return-notifier.c | -rw-r--r-- | 1.3 KB |
user.c | -rw-r--r-- | 5.3 KB |
user_namespace.c | -rw-r--r-- | 23.0 KB |
utsname.c | -rw-r--r-- | 2.9 KB |
utsname_sysctl.c | -rw-r--r-- | 3.0 KB |
watchdog.c | -rw-r--r-- | 18.9 KB |
workqueue.c | -rw-r--r-- | 135.6 KB |
workqueue_internal.h | -rw-r--r-- | 2.2 KB |
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