On 2014/8/16 5:37, Toshi Kani wrote: > On Wed, 2014-08-13 at 12:10 +0800, Zhang Zhen wrote: >> Currently memory-hotplug has two limits: >> 1. If the memory block is in ZONE_NORMAL, you can change it to >> ZONE_MOVABLE, but this memory block must be adjacent to ZONE_MOVABLE. >> 2. If the memory block is in ZONE_MOVABLE, you can change it to >> ZONE_NORMAL, but this memory block must be adjacent to ZONE_NORMAL. >> >> With this patch, we can easy to know a memory block can be onlined to >> which zone, and don't need to know the above two limits. >> >> Updated the related Documentation. >> >> Change v1 -> v2: >> - optimize the implementation following Dave Hansen's suggestion >> >> Signed-off-by: Zhang Zhen <zhenzhang.zhang@xxxxxxxxxx> >> --- >> Documentation/ABI/testing/sysfs-devices-memory | 8 ++++ >> Documentation/memory-hotplug.txt | 4 +- >> drivers/base/memory.c | 62 ++++++++++++++++++++++++++ >> include/linux/memory_hotplug.h | 1 + >> mm/memory_hotplug.c | 2 +- >> 5 files changed, 75 insertions(+), 2 deletions(-) >> >> diff --git a/Documentation/ABI/testing/sysfs-devices-memory b/Documentation/ABI/testing/sysfs-devices-memory >> index 7405de2..2b2a1d7 100644 >> --- a/Documentation/ABI/testing/sysfs-devices-memory >> +++ b/Documentation/ABI/testing/sysfs-devices-memory >> @@ -61,6 +61,14 @@ Users: hotplug memory remove tools >> http://www.ibm.com/developerworks/wikis/display/LinuxP/powerpc-utils >> >> >> +What: /sys/devices/system/memory/memoryX/zones_online_to > > I think this name is a bit confusing. How about "valid_online_types"? > Thanks for your suggestion. This patch has been added to -mm tree. If most people think so, i would like to modify the interface name. If not, let's leave it as it is. Best regards! > Thanks, > -Toshi > > > > -- > To unsubscribe, send a message with 'unsubscribe linux-mm' in > the body to majordomo@xxxxxxxxx. For more info on Linux MM, > see: http://www.linux-mm.org/ . > Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a> > > -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>